chore: snapshot production code before Apple Design UI refinement

go/vehicle-gateway/cmd/legacy-mileage-migrate/main.go

@@ -633,111 +633,6 @@ WHERE m.protocol = 'GB32960' AND m.daily_mileage_km > 0
 }
 
 func applyMigration(ctx context.Context, conn *sql.Conn) error {
-	tx, err := conn.BeginTx(ctx, &sql.TxOptions{Isolation: sql.LevelReadCommitted})
+	// The legacy table has no protocol provenance. Never label its rows GB32960.
-	if err != nil {
+	return errors.New("legacy mileage migration disabled: source rows have no verified protocol; retain the legacy table without projecting protocol mileage")
-		return err
-	}
-	defer tx.Rollback()
-	if _, err := tx.ExecContext(ctx, `
-INSERT INTO vehicle_data_source
-  (protocol, source_ip, latest_source_endpoint, platform_name, source_code, source_kind,
-   trust_priority, enabled, first_seen_at, latest_seen_at, remark)
-VALUES ('GB32960', ?, 'lingniu_prod.ln_vehicle_day_mileage', ?, ?, 'UNKNOWN', 1000, 1,
-        '2024-10-17 00:00:00', '2026-07-20 23:59:59',
-        '仅用于迁移 2026-07-21 之前缺失或为 0 的 GB32960 日里程')
-ON DUPLICATE KEY UPDATE
-  latest_source_endpoint = VALUES(latest_source_endpoint),
-  platform_name = VALUES(platform_name),
-  source_code = VALUES(source_code),
-  source_kind = VALUES(source_kind),
-  trust_priority = VALUES(trust_priority),
-  enabled = 1,
-  remark = VALUES(remark)`, legacySourceIP, legacyPlatformName, legacySourceCode); err != nil {
-		return fmt.Errorf("upsert legacy data source: %w", err)
-	}
-	var sourceID int64
-	if err := tx.QueryRowContext(ctx, `SELECT id FROM vehicle_data_source WHERE protocol = 'GB32960' AND source_ip = ?`, legacySourceIP).Scan(&sourceID); err != nil {
-		return fmt.Errorf("lookup legacy data source: %w", err)
-	}
-	if _, err := tx.ExecContext(ctx, `
-INSERT INTO vehicle_daily_mileage_source
-  (vin, stat_date, protocol, source_key, source_ip, source_endpoint, platform_name,
-   first_total_mileage_km, latest_total_mileage_km, daily_mileage_km, sample_count,
-   first_event_time, latest_event_time, quality_status, quality_reason, is_selected)
-SELECT
-  st.vin, st.stat_date, 'GB32960', ?, ?, 'lingniu_prod.ln_vehicle_day_mileage', ?,
-  CASE WHEN st.total_mileage_km IS NOT NULL AND st.total_mileage_km >= st.daily_mileage_km
-       THEN st.total_mileage_km - st.daily_mileage_km ELSE NULL END,
-  st.total_mileage_km, st.daily_mileage_km, 1,
-  TIMESTAMP(st.stat_date, '00:00:00'), TIMESTAMP(st.stat_date, '23:59:59'),
-  'OK', ?, 0
-FROM tmp_legacy_mileage_stage st
-LEFT JOIN vehicle_daily_mileage m
-  ON m.vin = st.vin AND m.stat_date = st.stat_date AND m.protocol = 'GB32960'
-WHERE m.vin IS NULL OR m.daily_mileage_km = 0 OR m.source_id = ?
-ON DUPLICATE KEY UPDATE
-	updated_at = IF(
-		NOT (vehicle_daily_mileage_source.first_total_mileage_km <=> VALUES(first_total_mileage_km))
-		OR NOT (vehicle_daily_mileage_source.latest_total_mileage_km <=> VALUES(latest_total_mileage_km))
-		OR NOT (vehicle_daily_mileage_source.daily_mileage_km <=> VALUES(daily_mileage_km))
-		OR NOT (vehicle_daily_mileage_source.quality_status <=> VALUES(quality_status))
-		OR NOT (vehicle_daily_mileage_source.quality_reason <=> VALUES(quality_reason)),
-		CURRENT_TIMESTAMP,
-		vehicle_daily_mileage_source.updated_at
-	),
-	source_ip = VALUES(source_ip),
-  source_endpoint = VALUES(source_endpoint),
-  platform_name = VALUES(platform_name),
-  first_total_mileage_km = VALUES(first_total_mileage_km),
-  latest_total_mileage_km = VALUES(latest_total_mileage_km),
-  daily_mileage_km = VALUES(daily_mileage_km),
-  sample_count = VALUES(sample_count),
-  first_event_time = VALUES(first_event_time),
-  latest_event_time = VALUES(latest_event_time),
-	quality_status = VALUES(quality_status),
-	quality_reason = VALUES(quality_reason)`, legacySourceKey, legacySourceIP, legacyPlatformName, legacyQuality, sourceID); err != nil {
-		return fmt.Errorf("upsert legacy mileage candidates: %w", err)
-	}
-	if _, err := tx.ExecContext(ctx, `
-INSERT INTO vehicle_daily_mileage
-  (vin, stat_date, protocol, source_id, daily_mileage_km, latest_total_mileage_km)
-SELECT st.vin, st.stat_date, 'GB32960', ?, st.daily_mileage_km, st.total_mileage_km
-FROM tmp_legacy_mileage_stage st
-LEFT JOIN vehicle_daily_mileage m
-  ON m.vin = st.vin AND m.stat_date = st.stat_date AND m.protocol = 'GB32960'
-WHERE m.vin IS NULL OR m.daily_mileage_km = 0 OR m.source_id = ?
-ON DUPLICATE KEY UPDATE
-	updated_at = IF(
-		vehicle_daily_mileage.daily_mileage_km = 0
-		OR (
-			(vehicle_daily_mileage.source_id <=> VALUES(source_id))
-			AND (
-				NOT (vehicle_daily_mileage.daily_mileage_km <=> VALUES(daily_mileage_km))
-				OR NOT (vehicle_daily_mileage.latest_total_mileage_km <=> VALUES(latest_total_mileage_km))
-			)
-		),
-		CURRENT_TIMESTAMP,
-		vehicle_daily_mileage.updated_at
-	),
-	source_id = IF(vehicle_daily_mileage.daily_mileage_km = 0 OR (vehicle_daily_mileage.source_id <=> VALUES(source_id)), VALUES(source_id), vehicle_daily_mileage.source_id),
-	latest_total_mileage_km = IF(vehicle_daily_mileage.daily_mileage_km = 0 OR (vehicle_daily_mileage.source_id <=> VALUES(source_id)), VALUES(latest_total_mileage_km), vehicle_daily_mileage.latest_total_mileage_km),
-	daily_mileage_km = IF(vehicle_daily_mileage.daily_mileage_km = 0 OR (vehicle_daily_mileage.source_id <=> VALUES(source_id)), VALUES(daily_mileage_km), vehicle_daily_mileage.daily_mileage_km)`, sourceID, sourceID); err != nil {
-		return fmt.Errorf("upsert final daily mileage: %w", err)
-	}
-	if _, err := tx.ExecContext(ctx, `
-UPDATE vehicle_daily_mileage_source s
-JOIN tmp_legacy_mileage_stage st
-  ON st.vin = s.vin AND st.stat_date = s.stat_date
-JOIN vehicle_daily_mileage m
-  ON m.vin = st.vin AND m.stat_date = st.stat_date AND m.protocol = 'GB32960'
-SET s.is_selected = CASE WHEN s.source_key = ? THEN 1 ELSE 0 END
-WHERE s.protocol = 'GB32960'
-  AND m.source_id = ?
-  AND ABS(m.daily_mileage_km - st.daily_mileage_km) <= 0.0005`, legacySourceKey, sourceID); err != nil {
-		return fmt.Errorf("mark legacy mileage selections: %w", err)
-	}
-	if err := tx.Commit(); err != nil {
-		return fmt.Errorf("commit migration: %w", err)
-	}
-	return nil
 }

go/vehicle-gateway/cmd/legacy-mileage-migrate/main_test.go

@@ -1,7 +1,9 @@
 package main
 
 import (
+	"context"
 	"database/sql"
+	"strings"
 	"testing"
 )
 
@@ -54,3 +56,10 @@ func TestNullableTotalMileageConvertsMetersToKM(t *testing.T) {
 		t.Fatalf("invalid mileage should remain nil, got %#v", got)
 	}
 }
+
+func TestApplyRejectsUnknownProtocolBeforeDatabaseAccess(t *testing.T) {
+	err := applyMigration(context.Background(), nil)
+	if err == nil || !strings.Contains(err.Error(), "no verified protocol") {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}

go/vehicle-gateway/cmd/mileage-reproject/main.go

@@ -0,0 +1,46 @@
+// Reproject explicitly listed, backed-up mileage days using the live writer SQL.
+package main
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"flag"
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+	"lingniu-vehicle-ingest/go/vehicle-gateway/internal/envelope"
+	"lingniu-vehicle-ingest/go/vehicle-gateway/internal/stats"
+	"os"
+	"time"
+)
+
+func main() {
+	input := flag.String("input", "", "JSON array of vin/date/protocol")
+	flag.Parse()
+	b, e := os.ReadFile(*input)
+	must(e)
+	var rows []struct {
+		VIN      string `json:"vin"`
+		Date     string `json:"date"`
+		Protocol string `json:"protocol"`
+	}
+	must(json.Unmarshal(b, &rows))
+	db, e := sql.Open("mysql", os.Getenv("MYSQL_DSN"))
+	must(e)
+	defer db.Close()
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Minute)
+	defer cancel()
+	for i, r := range rows {
+		must(stats.ProjectDailyMileage(ctx, db, r.VIN, r.Date, envelope.Protocol(r.Protocol)))
+		if (i+1)%500 == 0 {
+			fmt.Printf("projected=%d/%d\n", i+1, len(rows))
+		}
+	}
+	fmt.Printf("completed=%d\n", len(rows))
+}
+func must(e error) {
+	if e != nil {
+		fmt.Fprintln(os.Stderr, e)
+		os.Exit(1)
+	}
+}

go/vehicle-gateway/cmd/stats-backfill/main_test.go

@@ -190,7 +190,7 @@ func TestDailySourceLastBuildsCandidateKeysBySourceIP(t *testing.T) {
 	}
 }
 
-func TestAggregateFromDailySourceUsesCurrentDayBoundaryAfterOfflineGap(t *testing.T) {
+func TestAggregateFromDailySourceUsesHistoricalBoundaryAfterOfflineGap(t *testing.T) {
 	current := dailySourceLast{
 		VIN:            "LMRKH9AC2R1004087",
 		SourceKey:      normalizedSourceKey("YUTONG_MQTT", "", "LMRKH9AC2R1004087", "mqtt://yutong/ytforward/shln/3"),
@@ -213,13 +213,13 @@ func TestAggregateFromDailySourceUsesCurrentDayBoundaryAfterOfflineGap(t *testin
 
 	agg := aggregateFromDailySource("2026-07-08", envelope.ProtocolYutongMQTT, current, previous, true)
 
-	if agg.FirstKM != 120778 || agg.LatestKM != 120788 {
+	if agg.FirstKM != 120672 || agg.LatestKM != 120788 {
 		t.Fatalf("km range = %v -> %v", agg.FirstKM, agg.LatestKM)
 	}
-	if agg.FirstEventTime != current.FirstTS || agg.LatestEventTime != current.TS {
+	if agg.FirstEventTime != previous.TS || agg.LatestEventTime != current.TS {
 		t.Fatalf("event range = %v -> %v", agg.FirstEventTime, agg.LatestEventTime)
 	}
-	if agg.QualityStatus != stats.QualityOK || agg.QualityReason != stats.QualityReasonCurrentDayFirst {
+	if agg.QualityStatus != stats.QualityOK || agg.QualityReason != stats.QualityReasonHistorical {
 		t.Fatalf("quality = %s/%s", agg.QualityStatus, agg.QualityReason)
 	}
 	if agg.Count != 15 {
@@ -227,7 +227,7 @@ func TestAggregateFromDailySourceUsesCurrentDayBoundaryAfterOfflineGap(t *testin
 	}
 }
 
-func TestAggregateFromDailySourceIgnoresHistoricalBaselineJumpAcrossOfflineGap(t *testing.T) {
+func TestAggregateFromDailySourceRejectsHistoricalBaselineJumpAcrossOfflineGap(t *testing.T) {
 	loc := time.FixedZone("Asia/Shanghai", 8*3600)
 	current := dailySourceLast{
 		VIN:            "LNXNEGRR6SR319464",
@@ -249,10 +249,10 @@ func TestAggregateFromDailySourceIgnoresHistoricalBaselineJumpAcrossOfflineGap(t
 
 	agg := aggregateFromDailySource("2026-07-12", envelope.ProtocolGB32960, current, previous, true)
 
-	if agg.FirstKM != current.FirstTotalKM || agg.LatestKM != current.TotalKM {
+	if agg.FirstKM != previous.TotalKM || agg.LatestKM != current.TotalKM {
 		t.Fatalf("km range = %v -> %v", agg.FirstKM, agg.LatestKM)
 	}
-	if !agg.FirstEventTime.Equal(current.FirstTS) || !agg.LatestEventTime.Equal(current.TS) {
+	if !agg.FirstEventTime.Equal(previous.TS) || !agg.LatestEventTime.Equal(current.TS) {
 		t.Fatalf("event range = %v -> %v", agg.FirstEventTime, agg.LatestEventTime)
 	}
 	if agg.QualityStatus != stats.QualityInvalidDelta || agg.QualityReason != "outside_daily_range" {
@@ -286,7 +286,7 @@ func TestAggregateFromDailySourceUsesCurrentDayFirstWhenHistoryIsEmpty(t *testin
 	}
 }
 
-func TestBuildLastDiffAggregatesStartsFreshBoundaryAfterEmptyDays(t *testing.T) {
+func TestBuildLastDiffAggregatesRetainsBoundaryAfterEmptyDays(t *testing.T) {
 	tdDB, mock, err := sqlmock.New()
 	if err != nil {
 		t.Fatalf("sqlmock.New() error = %v", err)
@@ -334,11 +334,11 @@ func TestBuildLastDiffAggregatesStartsFreshBoundaryAfterEmptyDays(t *testing.T)
 	if agg == nil {
 		t.Fatalf("missing day-three aggregate; keys=%v", aggregateKeys(aggregates))
 	}
-	if agg.FirstKM != 120 || agg.LatestKM != 120 {
+	if agg.FirstKM != 100 || agg.LatestKM != 120 {
-		t.Fatalf("km range = %v -> %v, want 120 -> 120", agg.FirstKM, agg.LatestKM)
+		t.Fatalf("km range = %v -> %v, want 100 -> 120", agg.FirstKM, agg.LatestKM)
 	}
-	if !agg.FirstEventTime.Equal(dayThreeTS) || agg.QualityReason != stats.QualityReasonCurrentDayFirst {
+	if !agg.FirstEventTime.Equal(dayOneTS) || agg.QualityReason != stats.QualityReasonHistorical {
-		t.Fatalf("baseline = %v reason=%q, want day-three current-day baseline", agg.FirstEventTime, agg.QualityReason)
+		t.Fatalf("baseline = %v reason=%q, want day-one historical baseline", agg.FirstEventTime, agg.QualityReason)
 	}
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Fatalf("sql expectations: %v", err)
@@ -602,10 +602,10 @@ func TestAddRealtimeLocationFallbackReusesAggregateHistoryAcrossEmptyDays(t *tes
 	if agg == nil {
 		t.Fatal("missing realtime-location fallback aggregate")
 	}
-	if agg.FirstKM != 120 || agg.LatestKM != 120 || !agg.FirstEventTime.Equal(dayThreeTS) {
+	if agg.FirstKM != 100 || agg.LatestKM != 120 || !agg.FirstEventTime.Equal(dayOneTS) {
-		t.Fatalf("fallback range = %v@%v -> %v, want 120@day-three -> 120", agg.FirstKM, agg.FirstEventTime, agg.LatestKM)
+		t.Fatalf("fallback range = %v@%v -> %v, want 100@day-one -> 120", agg.FirstKM, agg.FirstEventTime, agg.LatestKM)
 	}
-	if agg.QualityReason != "realtime_location_fallback_current_day_first_baseline" {
+	if agg.QualityReason != "realtime_location_fallback_historical_baseline" {
 		t.Fatalf("quality reason = %q", agg.QualityReason)
 	}
 	if err := mysqlMock.ExpectationsWereMet(); err != nil {

go/vehicle-gateway/internal/stats/daily_metric.go

@@ -924,9 +924,7 @@ func (w *Writer) applyRealtimeBaseline(ctx context.Context, candidate *SourceMil
 		return nil
 	}
 	if !IsUsableDailyMileageBoundary(candidate.StatDate, baseline.LatestEventTime, w.loc) {
-		// A vehicle recovering after one or more empty natural days must start a
+		// A future/invalid boundary cannot be used for this natural day.
-		// fresh day boundary. Otherwise the complete offline-period odometer
-		// increase is incorrectly assigned to the recovery day.
 		candidate.FirstTotalKM = candidate.LatestTotalKM
 		candidate.FirstEventTime = candidate.LatestEventTime
 		candidate.DailyKM = 0

go/vehicle-gateway/internal/stats/daily_metric_test.go

@@ -1453,7 +1453,7 @@ func TestWriterAppendUsesPreviousSourceBaselineForRealtimeCandidate(t *testing.T
 	}
 }
 
-func TestWriterAppendStartsCurrentDayBoundaryAfterOfflineGap(t *testing.T) {
+func TestWriterAppendUsesHistoricalBoundaryAfterOfflineGap(t *testing.T) {
 	db, mock, err := sqlmock.New()
 	if err != nil {
 		t.Fatalf("sqlmock.New() error = %v", err)
@@ -1494,18 +1494,18 @@ func TestWriterAppendStartsCurrentDayBoundaryAfterOfflineGap(t *testing.T) {
 			"",
 			"LMRKH9AC2R1004087",
 			"",
+			float64(120672.0),
 			float64(120788.0),
-			float64(120788.0),
+			float64(116),
-			float64(0),
 			float64(0),
 			int64(1),
 			int64(0),
-			currentTime,
+			historicalTime,
 			currentTime,
 			false,
 			false,
 			QualityOK,
-			QualityReasonCurrentDayFirst,
+			QualityReasonHistorical,
 		).
 		WillReturnResult(sqlmock.NewResult(0, 1))
 	mock.ExpectExec(`INSERT INTO vehicle_daily_mileage`).
@@ -1711,7 +1711,7 @@ func TestWriterApplyRealtimeBaselineRejectsNegativeDeltaEvenWithLowerCurrentDayS
 	}
 }
 
-func TestWriterApplyRealtimeBaselineIgnoresPlausibleMultiDayFallbackDelta(t *testing.T) {
+func TestWriterApplyRealtimeBaselineIncludesPlausibleMultiDayFallbackDelta(t *testing.T) {
 	db, mock, err := sqlmock.New()
 	if err != nil {
 		t.Fatalf("sqlmock.New() error = %v", err)
@@ -1740,14 +1740,14 @@ func TestWriterApplyRealtimeBaselineIgnoresPlausibleMultiDayFallbackDelta(t *tes
 	if err := writer.applyRealtimeBaseline(context.Background(), &candidate); err != nil {
 		t.Fatalf("applyRealtimeBaseline() error = %v", err)
 	}
-	if candidate.QualityStatus != QualityOK || candidate.QualityReason != QualityReasonCurrentDayFirst {
+	if candidate.QualityStatus != QualityOK || candidate.QualityReason != QualityReasonHistorical {
 		t.Fatalf("quality = %s/%s", candidate.QualityStatus, candidate.QualityReason)
 	}
-	if candidate.DailyKM != 0 {
+	if math.Abs(candidate.DailyKM-7833.5) > 0.000001 {
-		t.Fatalf("daily km = %v, want current-day first baseline after offline gap", candidate.DailyKM)
+		t.Fatalf("daily km = %v, want historical cumulative difference after offline gap", candidate.DailyKM)
 	}
-	if candidate.FirstTotalKM != candidate.LatestTotalKM || !candidate.FirstEventTime.Equal(currentTime) {
+	if candidate.FirstTotalKM != 8832.1 || !candidate.FirstEventTime.Equal(baselineTime) {
-		t.Fatalf("current-day boundary not retained: %#v", candidate)
+		t.Fatalf("historical boundary not retained: %#v", candidate)
 	}
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Fatalf("sql expectations: %v", err)
@@ -1798,7 +1798,7 @@ func TestWriterApplyRealtimeBaselineRejectsProtocolOdometerRollbackAfterSourceCh
 	}
 }
 
-func TestWriterApplyRealtimeBaselineIgnoresHistoricalBaselineJumpAcrossOfflineGap(t *testing.T) {
+func TestWriterApplyRealtimeBaselineRejectsHistoricalBaselineJumpAcrossOfflineGap(t *testing.T) {
 	db, mock, err := sqlmock.New()
 	if err != nil {
 		t.Fatalf("sqlmock.New() error = %v", err)
@@ -1827,14 +1827,14 @@ func TestWriterApplyRealtimeBaselineIgnoresHistoricalBaselineJumpAcrossOfflineGa
 	if err := writer.applyRealtimeBaseline(context.Background(), &candidate); err != nil {
 		t.Fatalf("applyRealtimeBaseline() error = %v", err)
 	}
-	if candidate.QualityStatus != QualityOK || candidate.QualityReason != QualityReasonCurrentDayFirst {
+	if candidate.QualityStatus != QualityInvalidDelta || candidate.QualityReason != "outside_daily_range" {
 		t.Fatalf("quality = %s/%s", candidate.QualityStatus, candidate.QualityReason)
 	}
-	if candidate.DailyKM != 0 {
+	if math.Abs(candidate.DailyKM-30000) > 0.000001 {
-		t.Fatalf("daily km = %v, want current-day first baseline", candidate.DailyKM)
+		t.Fatalf("daily km = %v, want historical cumulative difference", candidate.DailyKM)
 	}
-	if candidate.FirstTotalKM != candidate.LatestTotalKM || !candidate.FirstEventTime.Equal(currentTime) {
+	if candidate.FirstTotalKM != 10009.7 || !candidate.FirstEventTime.Equal(baselineTime) {
-		t.Fatalf("current-day boundary not retained: %#v", candidate)
+		t.Fatalf("historical boundary not retained: %#v", candidate)
 	}
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Fatalf("sql expectations: %v", err)

go/vehicle-gateway/internal/stats/source_mileage.go

@@ -137,10 +137,8 @@ func DailyMileageFromDayBoundary(previousBaselineKM float64, currentDayLatestKM
 	return currentDayLatestKM - previousBaselineKM
 }
 
-// IsUsableDailyMileageBoundary reports whether a persisted baseline belongs to
+// IsUsableDailyMileageBoundary accepts older same-source odometers.
-// the current natural day or its immediately preceding natural day. A baseline
+// Offline increments belong to the recovery day so cumulative totals reconcile.
-// from an older day represents an offline gap; using it would attribute the
-// whole gap to the day on which the vehicle came back online.
 func IsUsableDailyMileageBoundary(statDate string, baselineTime time.Time, loc *time.Location) bool {
 	if strings.TrimSpace(statDate) == "" || baselineTime.IsZero() {
 		return false
@@ -154,7 +152,7 @@ func IsUsableDailyMileageBoundary(statDate string, baselineTime time.Time, loc *
 	}
 	baseline := baselineTime.In(loc)
 	baselineDay := time.Date(baseline.Year(), baseline.Month(), baseline.Day(), 0, 0, 0, 0, loc)
-	return !baselineDay.Before(day.AddDate(0, 0, -1)) && !baselineDay.After(day)
+	return !baselineDay.After(day)
 }
 
 func NormalizeDailyMileageDeltaForWindow(deltaKM float64, firstEventTime time.Time, latestEventTime time.Time) (float64, bool, string) {
@@ -754,7 +752,9 @@ const selectedSourceIdentitySampleCountSQL = `(
 // from the daily-mileage projection. GPS coordinate accumulation can be the
 // best evidence for distance travelled during the day, but it must never
 // replace a terminal-reported odometer as the day-end cumulative mileage.
-const projectDayEndTotalMileageSQL = `COALESCE((
+const projectDayEndTotalMileageSQL = `CASE
+ WHEN COALESCE(s.quality_reason, '') <> '` + QualityReasonGPSCoordinate + `' THEN s.latest_total_mileage_km
+ ELSE COALESCE((
   SELECT total_candidate.latest_total_mileage_km
   FROM vehicle_daily_mileage_source total_candidate
   WHERE total_candidate.vin = s.vin
@@ -771,7 +771,7 @@ const projectDayEndTotalMileageSQL = `COALESCE((
     total_candidate.sample_count DESC,
     total_candidate.source_key ASC
   LIMIT 1
-), s.latest_total_mileage_km)`
+), s.latest_total_mileage_km) END`
 
 const projectDailyMileageSQL = `
 INSERT INTO vehicle_daily_mileage

go/vehicle-gateway/internal/stats/source_mileage_test.go

@@ -279,7 +279,7 @@ func TestDailyMileageFromDayBoundaryUsesCurrentMinusPrevious(t *testing.T) {
 	}
 }
 
-func TestIsUsableDailyMileageBoundaryRejectsOlderOfflineGap(t *testing.T) {
+func TestIsUsableDailyMileageBoundaryAcceptsOlderOfflineGap(t *testing.T) {
 	loc := time.FixedZone("Asia/Shanghai", 8*3600)
 	for _, test := range []struct {
 		name     string
@@ -288,7 +288,7 @@ func TestIsUsableDailyMileageBoundaryRejectsOlderOfflineGap(t *testing.T) {
 	}{
 		{name: "current day cache", baseline: time.Date(2026, 8, 4, 19, 1, 26, 0, loc), want: true},
 		{name: "previous natural day", baseline: time.Date(2026, 8, 3, 23, 59, 59, 0, loc), want: true},
-		{name: "older offline gap", baseline: time.Date(2026, 5, 21, 23, 13, 2, 0, loc), want: false},
+		{name: "older offline gap", baseline: time.Date(2026, 5, 21, 23, 13, 2, 0, loc), want: true},
 		{name: "future boundary", baseline: time.Date(2026, 8, 5, 0, 0, 0, 0, loc), want: false},
 	} {
 		t.Run(test.name, func(t *testing.T) {

reports/mileage-reconciliation-20260916/backup.py

@@ -0,0 +1,49 @@
+"""Consistent logical backup of the complete current MySQL database; no DB writes."""
+import gzip, hashlib, json, os, pathlib, time
+import pymysql
+from db_access import connect
+os.umask(0o077)
+root=pathlib.Path('/opt/lingniu-go-native/backups/mileage-reconciliation-20260916')
+root.mkdir(parents=True,exist_ok=True)
+path=root/'database.sql.gz'
+if path.exists(): raise RuntimeError('Backup already exists; do not overwrite')
+c=connect(); manifest={'started_at':time.strftime('%Y-%m-%dT%H:%M:%S%z'),'tables':{}}
+with c.cursor() as q:
+ q.execute('SELECT DATABASE() AS db'); db=q.fetchone()['db'];manifest['database']=db
+ q.execute('SHOW FULL TABLES'); entries=q.fetchall()
+ tables=[list(r.values())[0] for r in entries if list(r.values())[1]=='BASE TABLE']
+ q.execute('SHOW TRIGGERS'); triggers=q.fetchall()
+ q.execute('START TRANSACTION WITH CONSISTENT SNAPSHOT, READ ONLY')
+ def literal(v):
+  if isinstance(v,bytes): return '0x'+v.hex()
+  return c.escape(v)
+ with gzip.open(str(path)+'.partial','wt',encoding='utf-8',compresslevel=3) as f:
+  f.write('SET NAMES utf8mb4;\nSET FOREIGN_KEY_CHECKS=0;\n')
+  for table in tables:
+   q.execute('SHOW CREATE TABLE `'+table+'`');ddl=list(q.fetchone().values())[1]
+   f.write('DROP TABLE IF EXISTS `'+table+'`;\n'+ddl+';\n')
+   q.execute('SHOW COLUMNS FROM `'+table+'`');cols=[r['Field'] for r in q.fetchall() if 'GENERATED' not in r['Extra']]
+   names=','.join('`'+v+'`' for v in cols);count=0
+   with c.cursor(pymysql.cursors.SSCursor) as stream:
+    stream.execute('SELECT '+names+' FROM `'+table+'`')
+    while True:
+     rows=stream.fetchmany(500)
+     if not rows:break
+     f.write('INSERT INTO `'+table+'` ('+names+') VALUES\n'+',\n'.join('('+','.join(literal(v) for v in row)+')' for row in rows)+';\n')
+     count+=len(rows)
+   manifest['tables'][table]=count
+   print(json.dumps({'table':table,'rows':count}),flush=True)
+  for row in entries:
+   if list(row.values())[1]=='VIEW':
+    name=list(row.values())[0];q.execute('SHOW CREATE VIEW `'+name+'`');ddl=q.fetchone()['Create View'];f.write(ddl+';\n')
+  for trigger in triggers:
+   q.execute('SHOW CREATE TRIGGER `'+trigger['Trigger']+'`');ddl=q.fetchone()['SQL Original Statement'];f.write('DELIMITER ;;\n'+ddl+';;\nDELIMITER ;\n')
+  f.write('SET FOREIGN_KEY_CHECKS=1;\n')
+c.rollback();c.close()
+os.rename(str(path)+'.partial',path)
+h=hashlib.sha256()
+with path.open('rb') as f:
+ for block in iter(lambda:f.read(1024*1024),b''):h.update(block)
+manifest.update(sha256=h.hexdigest(),bytes=path.stat().st_size,finished_at=time.strftime('%Y-%m-%dT%H:%M:%S%z'))
+(root/'manifest.json').write_text(json.dumps(manifest,indent=2))
+print(json.dumps({'complete':True,'bytes':manifest['bytes'],'sha256':manifest['sha256']}),flush=True)

reports/mileage-reconciliation-20260916/db_access.py

@@ -0,0 +1,17 @@
+import pymysql,pathlib,re,json
+
+def connect():
+ env={}
+ for name in ['base.env','stat-writer.env']:
+  for line in pathlib.Path('/opt/lingniu-go-native/env/'+name).read_text().splitlines():
+   if '=' in line and not line.startswith('#'):
+    k,v=line.split('=',1);env[k]=v.strip().strip(chr(34)).strip(chr(39))
+ m=re.fullmatch(r'([^:]+):(.*?)@tcp\(([^:]+):(\d+)\)/([^?]+).*',env['MYSQL_DSN'])
+ return pymysql.connect(user=m[1],password=m[2],host=m[3],port=int(m[4]),database=m[5],charset='utf8mb4',cursorclass=pymysql.cursors.DictCursor,autocommit=False)
+if __name__=='__main__':
+ c=connect()
+ with c.cursor() as q:
+  q.execute('START TRANSACTION READ ONLY')
+  for sql in ["SELECT DATABASE() AS db, VERSION() AS version", "SELECT table_name,engine,table_rows,ROUND((data_length+index_length)/1024/1024,1) AS mb FROM information_schema.tables WHERE table_schema=DATABASE() ORDER BY data_length DESC", "SELECT protocol,source_ip,COUNT(*) AS n,COUNT(DISTINCT vin) AS vins FROM vehicle_daily_mileage_source WHERE source_ip IN ('legacy-mysql.lingniu-prod','manual-lingniu-prod-day-mileage') GROUP BY protocol,source_ip"]:
+   q.execute(sql);print(json.dumps(q.fetchall(),default=str))
+ c.rollback();c.close()

reports/mileage-reconciliation-20260916/repair.py

@@ -0,0 +1,60 @@
+"""Repair verified mileage provenance and offline baselines. Dry-run by default."""
+import argparse,datetime,json,pathlib
+from decimal import Decimal
+from db_access import connect
+p=argparse.ArgumentParser();p.add_argument('--apply',action='store_true');args=p.parse_args()
+root=pathlib.Path('/opt/lingniu-go-native/backups/mileage-reconciliation-20260916')
+legacy="('legacy-mysql.lingniu-prod','manual-lingniu-prod-day-mileage')"
+c=connect();report={}
+with c.cursor() as q:
+ q.execute('START TRANSACTION READ ONLY')
+ q.execute("SELECT COUNT(*) AS n,COUNT(DISTINCT vin) AS vehicles FROM vehicle_daily_mileage_source WHERE protocol='GB32960' AND source_ip IN "+legacy);report['legacy']=q.fetchone()
+ q.execute("SELECT COUNT(*) AS n FROM vehicle_daily_mileage m JOIN vehicle_data_source d ON d.id=m.source_id WHERE m.protocol='GB32960' AND d.source_ip IN "+legacy);report['legacy_projections']=q.fetchone()
+ q.execute("""SELECT s.vin,s.stat_date,s.protocol,s.source_key,s.latest_total_mileage_km,s.first_total_mileage_km,s.daily_mileage_km,s.first_event_time,s.latest_event_time,
+ p.latest_total_mileage_km AS previous_total,p.latest_event_time AS previous_time
+ FROM vehicle_daily_mileage_source s
+ JOIN vehicle_daily_mileage_source p ON p.vin=s.vin AND p.protocol=s.protocol AND p.source_key=s.source_key
+ AND p.stat_date=(SELECT MAX(b.stat_date) FROM vehicle_daily_mileage_source b
+ WHERE b.vin=s.vin AND b.protocol=s.protocol AND b.source_key=s.source_key AND b.stat_date<s.stat_date
+ AND b.quality_status='OK' AND b.latest_total_mileage_km>0
+ AND b.latest_event_time>=TIMESTAMP(b.stat_date) AND b.latest_event_time<TIMESTAMP(b.stat_date)+INTERVAL 1 DAY)
+ WHERE s.stat_date<='2026-09-16' AND s.quality_status='OK'
+ AND s.quality_reason='current_day_first_baseline'
+ AND s.latest_total_mileage_km>0 AND s.first_event_time>=TIMESTAMP(s.stat_date)
+ AND s.source_ip NOT IN """+legacy+" ORDER BY s.vin,s.protocol,s.source_key,s.stat_date")
+ changes=q.fetchall();report['baseline_candidates']=len(changes)
+ q.execute("SELECT id FROM vehicle_data_source WHERE source_ip IN "+legacy);legacy_ids=[r['id'] for r in q.fetchall()]
+ c.rollback()
+ if args.apply:
+  assert (root/'manifest.json').is_file() and (root/'database.sql.gz').is_file(),'Complete backup required'
+  (root/'baseline-before.json').write_text(json.dumps(changes,default=str,ensure_ascii=False))
+  q.execute('START TRANSACTION')
+  q.execute("UPDATE vehicle_daily_mileage_source SET quality_status='INVALID_DELTA',quality_reason='UNVERIFIED_LEGACY_PROTOCOL',is_selected=0 WHERE protocol='GB32960' AND source_ip IN "+legacy)
+  report['quarantined_source_rows']=q.rowcount
+  q.execute("UPDATE vehicle_data_source SET enabled=0,remark='Protocol provenance unverified; quarantined 2026-09-16; original records retained' WHERE protocol='GB32960' AND source_ip IN "+legacy)
+  q.execute("DELETE m FROM vehicle_daily_mileage m JOIN vehicle_data_source d ON d.id=m.source_id WHERE m.protocol='GB32960' AND d.source_ip IN "+legacy)
+  report['removed_mislabelled_projections']=q.rowcount
+  affected=set()
+  for s in changes:
+   delta=s['latest_total_mileage_km']-s['previous_total']
+   days=max(1,(s['latest_event_time'].date()-s['previous_time'].date()).days)
+   status='OK';reason='historical_source_baseline'
+   if Decimal('-1')<=delta<0:delta=Decimal(0);reason='negative_jitter_clamped'
+   elif delta<0:status='INVALID_DELTA';reason='TOTAL_MILEAGE_ROLLBACK'
+   elif delta>Decimal(2500*days):status='INVALID_DELTA';reason='outside_daily_range'
+   q.execute("""UPDATE vehicle_daily_mileage_source SET first_total_mileage_km=%s,first_event_time=%s,daily_mileage_km=%s,
+    quality_status=%s,quality_reason=%s WHERE vin=%s AND stat_date=%s AND protocol=%s AND source_key=%s
+    AND first_total_mileage_km <=> %s AND daily_mileage_km=%s""",(s['previous_total'],s['previous_time'],delta,status,reason,s['vin'],s['stat_date'],s['protocol'],s['source_key'],s['first_total_mileage_km'],s['daily_mileage_km']))
+   if q.rowcount:affected.add((s['vin'],s['stat_date'],s['protocol']))
+  # Restore valid non-import GB32960 projections that were hidden by migrated rows.
+  q.execute("""SELECT DISTINCT s.vin,s.stat_date,s.protocol FROM vehicle_daily_mileage_source s
+   JOIN vehicle_daily_mileage_source bad ON bad.vin=s.vin AND bad.stat_date=s.stat_date AND bad.protocol=s.protocol
+   WHERE bad.source_ip IN """+legacy+" AND s.source_ip NOT IN "+legacy+" AND s.quality_status='OK' AND s.latest_total_mileage_km IS NOT NULL")
+  affected.update((r['vin'],r['stat_date'],r['protocol']) for r in q.fetchall())
+  report['reproject_days']=len(affected)
+  # The Go projection utility is run before resuming writers, using canonical SQL.
+  (root/'reproject.json').write_text(json.dumps([{'vin':v,'date':str(d),'protocol':p} for v,d,p in sorted(affected)]))
+  c.commit()
+ (root if args.apply else pathlib.Path('/tmp')).joinpath('repair-result.json' if args.apply else 'mileage-repair-dry-run.json').write_text(json.dumps(report,default=str,indent=2))
+ print(json.dumps(report,default=str),flush=True)
+c.close()

reports/mileage-reconciliation-20260916/run_remote.py

@@ -0,0 +1,7 @@
+"""Run a specified maintenance binary without exposing environment credentials."""
+import os,pathlib,subprocess,sys
+for name in ['base.env','stat-writer.env']:
+ for line in pathlib.Path('/opt/lingniu-go-native/env/'+name).read_text().splitlines():
+  if '=' in line and not line.startswith('#'):
+   k,v=line.split('=',1);os.environ[k]=v.strip().strip(chr(34)).strip(chr(39))
+sys.exit(subprocess.call(sys.argv[1:]))

tmp/g7-mileage-eval-20260724/inspect_sample.mjs

@@ -0,0 +1,115 @@
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const inputPath =
+  "/Users/lingniu/Downloads/智能管车_车辆里程日报-105652096.xlsx";
+const input = await FileBlob.load(inputPath);
+const workbook = await SpreadsheetFile.importXlsx(input);
+
+const summary = await workbook.inspect({
+  kind: "workbook,sheet,table",
+  maxChars: 12000,
+  tableMaxRows: 8,
+  tableMaxCols: 40,
+  tableMaxCellChars: 120,
+});
+
+const sheet = workbook.worksheets.getItemAt(0);
+const usedRange = sheet.getUsedRange(true);
+const rowCount = usedRange?.rowCount ?? 0;
+const columnCount = usedRange?.columnCount ?? 0;
+const values = usedRange?.values ?? [];
+const headers = values[0] ?? [];
+const dateStartIndex = 3;
+const dateEndIndex = Math.max(dateStartIndex, headers.indexOf("运行时长"));
+let positiveDailyCellCount = 0;
+let nonZeroVehicleCount = 0;
+let noteVehicleCount = 0;
+let mismatchVehicleCount = 0;
+let totalDailyKm = 0;
+let totalColumnKm = 0;
+const nonZeroSamples = [];
+const noteSamples = [];
+for (const row of values.slice(1)) {
+  const dailyValues = row
+    .slice(dateStartIndex, dateEndIndex)
+    .map(numberValue);
+  const positiveValues = dailyValues.filter((value) => value > 0);
+  const rowDailyKm = dailyValues.reduce((sum, value) => sum + value, 0);
+  const rowTotalKm = numberValue(row[2]);
+  const note = row[dateEndIndex + 1];
+  positiveDailyCellCount += positiveValues.length;
+  totalDailyKm += rowDailyKm;
+  totalColumnKm += rowTotalKm;
+  if (positiveValues.length > 0) {
+    nonZeroVehicleCount += 1;
+    if (nonZeroSamples.length < 20) {
+      nonZeroSamples.push({
+        plate: row[0],
+        organization: row[1],
+        totalKm: rowTotalKm,
+        dailyKm: rowDailyKm,
+        positiveDayCount: positiveValues.length,
+      });
+    }
+  }
+  if (note !== null && note !== undefined && String(note).trim() !== "") {
+    noteVehicleCount += 1;
+    if (noteSamples.length < 20) {
+      noteSamples.push({ plate: row[0], note });
+    }
+  }
+  if (Math.abs(rowTotalKm - rowDailyKm) > 0.011) {
+    mismatchVehicleCount += 1;
+  }
+}
+const inspectRange = rowCount > 0 && columnCount > 0
+  ? `A1:${columnName(Math.min(columnCount, 40))}${Math.min(rowCount, 15)}`
+  : "A1:A1";
+const preview = await workbook.inspect({
+  kind: "table",
+  sheetId: sheet.name,
+  range: inspectRange,
+  include: "values,formulas",
+  maxChars: 25000,
+  tableMaxRows: 15,
+  tableMaxCols: 40,
+  tableMaxCellChars: 120,
+});
+
+console.log(JSON.stringify({
+  inputPath,
+  sheetName: sheet.name,
+  rowCount,
+  columnCount,
+  dateColumnCount: Math.max(0, dateEndIndex - dateStartIndex),
+  positiveDailyCellCount,
+  nonZeroVehicleCount,
+  noteVehicleCount,
+  mismatchVehicleCount,
+  totalDailyKm: round(totalDailyKm),
+  totalColumnKm: round(totalColumnKm),
+  nonZeroSamples,
+  noteSamples,
+  summary: summary.ndjson,
+  preview: preview.ndjson,
+}, null, 2));
+
+function columnName(columnCount) {
+  let value = columnCount;
+  let name = "";
+  while (value > 0) {
+    value -= 1;
+    name = String.fromCharCode(65 + (value % 26)) + name;
+    value = Math.floor(value / 26);
+  }
+  return name;
+}
+
+function numberValue(value) {
+  const parsed = Number(value);
+  return Number.isFinite(parsed) ? parsed : 0;
+}
+
+function round(value) {
+  return Math.round(value * 1000) / 1000;
+}

tmp/g7-mileage-history-20260724/build_all.mjs

@@ -0,0 +1,741 @@
+import fs from "node:fs/promises";
+import fsSync from "node:fs";
+import path from "node:path";
+import { once } from "node:events";
+import {
+  FileBlob,
+  SpreadsheetFile,
+  Workbook,
+} from "@oai/artifact-tool";
+
+const root =
+  "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest";
+const workDir = path.join(root, "outputs/g7-mileage-history-20260724");
+const dailyDir = path.join(workDir, "raw/daily");
+const statisticDir = path.join(workDir, "raw/statistic");
+const mergedDir = path.join(workDir, "merged");
+const outputXlsx = path.join(
+  mergedDir,
+  "G7车辆每日里程及里程统计_20220101-20260720.xlsx",
+);
+const importCsv = path.join(
+  mergedDir,
+  "G7车辆每日里程_20220101-20260720.csv",
+);
+const manifestPath = path.join(mergedDir, "manifest.json");
+const priorMappingCsv = path.join(
+  root,
+  "outputs/g7-mileage-import-20260716/import_rows.csv",
+);
+
+await fs.mkdir(mergedDir, { recursive: true });
+
+const months = buildMonths();
+const dailyFilesByTaskId = await sortedXlsxFiles(dailyDir);
+// 2022-02 was the one-file validation task. The remaining formal queue then
+// started with 2022-01 and continued from 2022-03, so swap the first two task IDs
+// back into natural month order.
+const dailyFiles = [
+  dailyFilesByTaskId[1],
+  dailyFilesByTaskId[0],
+  ...dailyFilesByTaskId.slice(2),
+];
+const statisticFiles = await sortedXlsxFiles(statisticDir);
+assert(dailyFiles.length === months.length, `日报文件应为 ${months.length}，实际 ${dailyFiles.length}`);
+assert(
+  statisticFiles.length === months.length,
+  `里程统计文件应为 ${months.length}，实际 ${statisticFiles.length}`,
+);
+
+const vehicles = new Map();
+const dateOrder = [];
+const dateSource = new Map();
+const monthlyDailyTotals = new Map();
+const dailyBatchManifest = [];
+let dailyPositiveCells = 0;
+let dailyZeroCells = 0;
+let dailyTotalKm = 0;
+let dailyTotalMismatchRows = 0;
+let dailyCompletenessNoteRows = 0;
+
+for (let monthIndex = 0; monthIndex < months.length; monthIndex += 1) {
+  const month = months[monthIndex];
+  const file = dailyFiles[monthIndex];
+  const values = await readFirstSheetValues(file);
+  const headers = values[0] ?? [];
+  const runtimeIndex = headers.indexOf("运行时长");
+  assert(runtimeIndex > 3, `${path.basename(file)} 缺少运行时长列`);
+  const dateColumnCount = runtimeIndex - 3;
+  assert(
+    dateColumnCount === month.dayCount,
+    `${path.basename(file)} 日期列应为 ${month.dayCount}，实际 ${dateColumnCount}`,
+  );
+
+  const monthDates = [];
+  for (let day = 1; day <= month.dayCount; day += 1) {
+    const date = `${month.year}-${pad(month.month)}-${pad(day)}`;
+    monthDates.push(date);
+    dateOrder.push(date);
+    dateSource.set(date, path.basename(file));
+  }
+
+  let batchTotal = 0;
+  let batchPositive = 0;
+  let batchZero = 0;
+  let batchMismatch = 0;
+  let batchNotes = 0;
+  const seenPlates = new Set();
+  for (let rowIndex = 1; rowIndex < values.length; rowIndex += 1) {
+    const row = values[rowIndex] ?? [];
+    const plate = cleanText(row[0]);
+    if (!plate) continue;
+    assert(!seenPlates.has(plate), `${path.basename(file)} 存在重复车牌 ${plate}`);
+    seenPlates.add(plate);
+    const organization = cleanText(row[1]);
+    const statedTotal = numberValue(row[2]);
+    const dailyValues = row.slice(3, runtimeIndex).map(numberValue);
+    const calculatedTotal = dailyValues.reduce((sum, value) => sum + value, 0);
+    if (Math.abs(statedTotal - calculatedTotal) > 0.011) {
+      dailyTotalMismatchRows += 1;
+      batchMismatch += 1;
+    }
+    const note = cleanText(row[runtimeIndex + 1]);
+    if (note) {
+      dailyCompletenessNoteRows += 1;
+      batchNotes += 1;
+    }
+
+    let vehicle = vehicles.get(plate);
+    if (!vehicle) {
+      vehicle = {
+        plate,
+        organization,
+        values: new Map(),
+      };
+      vehicles.set(plate, vehicle);
+    } else if (!vehicle.organization && organization) {
+      vehicle.organization = organization;
+    }
+
+    for (let dayIndex = 0; dayIndex < dailyValues.length; dayIndex += 1) {
+      const value = dailyValues[dayIndex];
+      const date = monthDates[dayIndex];
+      vehicle.values.set(date, value);
+      batchTotal += value;
+      dailyTotalKm += value;
+      if (value > 0) {
+        batchPositive += 1;
+        dailyPositiveCells += 1;
+      } else {
+        batchZero += 1;
+        dailyZeroCells += 1;
+      }
+    }
+  }
+  monthlyDailyTotals.set(month.key, round(batchTotal));
+  dailyBatchManifest.push({
+    type: "车辆里程日报",
+    month: month.key,
+    date_from: month.dateFrom,
+    date_to: month.dateTo,
+    file: path.basename(file),
+    vehicle_rows: seenPlates.size,
+    date_columns: month.dayCount,
+    positive_cells: batchPositive,
+    zero_cells: batchZero,
+    total_km: round(batchTotal),
+    total_mismatch_rows: batchMismatch,
+    completeness_note_rows: batchNotes,
+  });
+}
+
+assert(dateOrder.length === 1662, `日期列应为 1662，实际 ${dateOrder.length}`);
+assert(new Set(dateOrder).size === dateOrder.length, "日报日期列存在重复");
+assert(dateOrder[0] === "2022-01-01", `起始日期异常：${dateOrder[0]}`);
+assert(dateOrder.at(-1) === "2026-07-20", `结束日期异常：${dateOrder.at(-1)}`);
+
+const statisticRows = [];
+const monthlyStatisticTotals = new Map();
+const statisticBatchManifest = [];
+for (let monthIndex = 0; monthIndex < months.length; monthIndex += 1) {
+  const month = months[monthIndex];
+  const file = statisticFiles[monthIndex];
+  const values = await readFirstSheetValues(file);
+  const headers = (values[0] ?? []).map(cleanText);
+  const plateIndex = findHeader(headers, ["车牌号"]);
+  const orgIndex = findHeader(headers, ["所属机构", "机构"]);
+  const sourceOrgIndex = findHeader(headers, ["来源机构"]);
+  const lengthIndex = findHeader(headers, ["车长(米)", "车长"]);
+  const boxIndex = findHeader(headers, ["厢型"]);
+  const runtimeIndex = findHeader(headers, ["运行时长"]);
+  const mileageIndex = findHeader(headers, ["行驶里程(KM)", "行驶里程"]);
+  assert(plateIndex >= 0, `${path.basename(file)} 缺少车牌号`);
+  assert(mileageIndex >= 0, `${path.basename(file)} 缺少行驶里程`);
+
+  let batchTotal = 0;
+  let vehicleRows = 0;
+  for (let rowIndex = 1; rowIndex < values.length; rowIndex += 1) {
+    const row = values[rowIndex] ?? [];
+    const plate = cleanText(row[plateIndex]);
+    if (!plate) continue;
+    const mileage = numberValue(row[mileageIndex]);
+    batchTotal += mileage;
+    vehicleRows += 1;
+    statisticRows.push([
+      month.key,
+      plate,
+      orgIndex >= 0 ? cleanText(row[orgIndex]) : "",
+      sourceOrgIndex >= 0 ? cleanText(row[sourceOrgIndex]) : "",
+      lengthIndex >= 0 ? row[lengthIndex] ?? "" : "",
+      boxIndex >= 0 ? cleanText(row[boxIndex]) : "",
+      runtimeIndex >= 0 ? cleanText(row[runtimeIndex]) : "",
+      mileage,
+      path.basename(file),
+    ]);
+  }
+  monthlyStatisticTotals.set(month.key, round(batchTotal));
+  statisticBatchManifest.push({
+    type: "车辆里程统计",
+    month: month.key,
+    date_from: month.dateFrom,
+    date_to: month.dateTo,
+    file: path.basename(file),
+    vehicle_rows: vehicleRows,
+    total_km: round(batchTotal),
+  });
+}
+
+const mapping = await readPriorMapping(priorMappingCsv);
+const sortedVehicles = [...vehicles.values()].sort((a, b) =>
+  a.plate.localeCompare(b.plate, "zh-CN"),
+);
+const mappedVehicles = sortedVehicles.filter((vehicle) => mapping.has(vehicle.plate));
+const unmappedVehicles = sortedVehicles.filter((vehicle) => !mapping.has(vehicle.plate));
+
+await writeImportCsv(importCsv, sortedVehicles, dateOrder);
+
+const workbook = Workbook.create();
+const summarySheet = workbook.worksheets.add("汇总");
+const positiveDailySheet = workbook.worksheets.add("每日里程非零");
+const statisticSheet = workbook.worksheets.add("G7里程统计");
+const mappingSheet = workbook.worksheets.add("车辆映射");
+const batchSheet = workbook.worksheets.add("导出批次");
+
+buildSummarySheet(summarySheet);
+await buildPositiveDailySheet(positiveDailySheet);
+await buildStatisticSheet(statisticSheet);
+await buildMappingSheet(mappingSheet);
+await buildBatchSheet(batchSheet);
+
+const summaryInspect = await workbook.inspect({
+  kind: "table",
+  sheetId: "汇总",
+  range: "A1:F25",
+  include: "values,formulas",
+  maxChars: 12000,
+  tableMaxRows: 25,
+  tableMaxCols: 6,
+});
+const dailyInspect = await workbook.inspect({
+  kind: "table",
+  sheetId: "每日里程非零",
+  range: "A1:D12",
+  include: "values,formulas",
+  maxChars: 12000,
+  tableMaxRows: 12,
+  tableMaxCols: 4,
+});
+const formulaErrors = await workbook.inspect({
+  kind: "match",
+  searchTerm: "#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A",
+  options: { useRegex: true, maxResults: 300 },
+  summary: "final formula error scan",
+});
+assert(!formulaErrors.ndjson.includes('"match"'), "工作簿存在公式错误");
+
+const summaryPreview = await workbook.render({
+  sheetName: "汇总",
+  range: "A1:F25",
+  scale: 1.5,
+  format: "png",
+});
+await fs.writeFile(
+  path.join(mergedDir, "summary-preview.png"),
+  new Uint8Array(await summaryPreview.arrayBuffer()),
+);
+const dailyPreview = await workbook.render({
+  sheetName: "每日里程非零",
+  range: "A1:D12",
+  scale: 1.2,
+  format: "png",
+});
+await fs.writeFile(
+  path.join(mergedDir, "daily-preview.png"),
+  new Uint8Array(await dailyPreview.arrayBuffer()),
+);
+
+try {
+  const output = await SpreadsheetFile.exportXlsx(workbook);
+  await output.save(outputXlsx);
+} catch (error) {
+  console.error(
+    JSON.stringify(
+      {
+        stage: "export_xlsx",
+        name: error?.name,
+        message: error?.message,
+        stack: String(error?.stack ?? "")
+          .split("\n")
+          .filter((line) => !line.includes("artifact_tool.mjs:3121"))
+          .slice(0, 12),
+      },
+      null,
+      2,
+    ),
+  );
+  process.exit(1);
+}
+
+const monthlyReconciliation = months.map((month) => {
+  const dailyKm = monthlyDailyTotals.get(month.key) ?? 0;
+  const statisticKm = monthlyStatisticTotals.get(month.key) ?? 0;
+  return {
+    month: month.key,
+    daily_km: dailyKm,
+    statistic_km: statisticKm,
+    difference_km: round(dailyKm - statisticKm),
+  };
+});
+const manifest = {
+  generated_at: new Date().toISOString(),
+  range: {
+    date_from: dateOrder[0],
+    date_to: dateOrder.at(-1),
+    days: dateOrder.length,
+    months: months.length,
+  },
+  files: {
+    daily_raw: dailyFiles.map((file) => path.basename(file)),
+    statistic_raw: statisticFiles.map((file) => path.basename(file)),
+    workbook: path.basename(outputXlsx),
+    import_csv: path.basename(importCsv),
+  },
+  vehicle_count: sortedVehicles.length,
+  mapped_vehicle_count: mappedVehicles.length,
+  unmapped_vehicle_count: unmappedVehicles.length,
+  vehicle_day_rows: sortedVehicles.length * dateOrder.length,
+  mapped_vehicle_day_rows: mappedVehicles.length * dateOrder.length,
+  positive_cells: dailyPositiveCells,
+  zero_cells: dailyZeroCells,
+  daily_total_km: round(dailyTotalKm),
+  daily_total_mismatch_rows: dailyTotalMismatchRows,
+  completeness_note_rows: dailyCompletenessNoteRows,
+  monthly_reconciliation: monthlyReconciliation,
+  daily_batches: dailyBatchManifest,
+  statistic_batches: statisticBatchManifest,
+  verification: {
+    summary_inspect: summaryInspect.ndjson,
+    daily_inspect: dailyInspect.ndjson,
+    formula_errors: formulaErrors.ndjson,
+  },
+};
+await fs.writeFile(manifestPath, `${JSON.stringify(manifest, null, 2)}\n`, "utf8");
+
+console.log(
+  JSON.stringify(
+    {
+      outputXlsx,
+      importCsv,
+      manifestPath,
+      vehicleCount: sortedVehicles.length,
+      mappedVehicleCount: mappedVehicles.length,
+      unmappedVehicleCount: unmappedVehicles.length,
+      dateCount: dateOrder.length,
+      vehicleDayRows: sortedVehicles.length * dateOrder.length,
+      mappedVehicleDayRows: mappedVehicles.length * dateOrder.length,
+      positiveCells: dailyPositiveCells,
+      zeroCells: dailyZeroCells,
+      totalKm: round(dailyTotalKm),
+      monthlyDifferenceCount: monthlyReconciliation.filter(
+        (row) => Math.abs(row.difference_km) > 0.02,
+      ).length,
+    },
+    null,
+    2,
+  ),
+);
+
+function buildSummarySheet(sheet) {
+  sheet.showGridLines = false;
+  sheet.getRange("A1:F1").merge();
+  sheet.getRange("A1").values = [["G7 车辆里程全量导出汇总"]];
+  sheet.getRange("A1:F1").format = {
+    fill: "#0F766E",
+    font: { bold: true, color: "#FFFFFF", size: 16 },
+    horizontalAlignment: "center",
+    verticalAlignment: "center",
+  };
+  sheet.getRange("A1:F1").format.rowHeight = 30;
+
+  const metrics = [
+    ["指标", "值", "说明"],
+    ["统计起始日期", new Date(`${dateOrder[0]}T00:00:00+08:00`), "G7 日报"],
+    ["统计结束日期", new Date(`${dateOrder.at(-1)}T00:00:00+08:00`), "含当日"],
+    ["自然日数", dateOrder.length, "连续日期"],
+    ["日报导出批次", dailyFiles.length, "每月 1 份"],
+    ["里程统计导出批次", statisticFiles.length, "每月 1 份"],
+    ["G7 车辆数", sortedVehicles.length, "当前导出车辆列表"],
+    ["已映射 VIN 车辆数", mappedVehicles.length, "沿用现有车辆映射"],
+    ["未映射车辆数", unmappedVehicles.length, "不进入正式导入"],
+    ["映射覆盖率", null, "已映射 / G7 车辆数"],
+    ["车辆-日期单元格", sortedVehicles.length * dateOrder.length, "包含 0 km"],
+    ["可导入车辆-日期行", mappedVehicles.length * dateOrder.length, "包含 0 km"],
+    ["正里程单元格", dailyPositiveCells, "> 0 km"],
+    ["0 km 单元格", dailyZeroCells, "按用户确认保留"],
+    ["日报累计里程(km)", round(dailyTotalKm), "55 份日报求和"],
+    ["日报合计不一致车辆月", dailyTotalMismatchRows, "日报“行驶里程”与逐日求和"],
+    ["完整度说明非空车辆月", dailyCompletenessNoteRows, "来自 G7 日报"],
+  ];
+  sheet.getRangeByIndexes(2, 0, metrics.length, 3).values = metrics;
+  sheet.getRange("A3:C3").format = headerFormat();
+  sheet.getRange("B4:B5").format.numberFormat = "yyyy-mm-dd";
+  sheet.getRange("B6:B19").format.numberFormat = "#,##0.00";
+  sheet.getRange("B12").formulas = [["=IFERROR(B10/B9,0)"]];
+  sheet.getRange("B12").format.numberFormat = "0.0%";
+  sheet.getRange("A4:A19").format.font = { bold: true, color: "#134E4A" };
+  sheet.getRange("A3:C19").format.borders = {
+    preset: "inside",
+    style: "thin",
+    color: "#D1D5DB",
+  };
+
+  sheet.getRange("E3:H3").values = [["月份", "日报合计(km)", "里程统计合计(km)", "差异(km)"]];
+  sheet.getRange("E3:H3").format = headerFormat();
+  const monthlyRows = months.map((month) => [
+    month.key,
+    monthlyDailyTotals.get(month.key) ?? 0,
+    monthlyStatisticTotals.get(month.key) ?? 0,
+    null,
+  ]);
+  sheet.getRangeByIndexes(3, 4, monthlyRows.length, 4).values = monthlyRows;
+  sheet.getRange("H4").formulas = [["=F4-G4"]];
+  sheet.getRange(`H4:H${3 + monthlyRows.length}`).fillDown();
+  sheet.getRange(`F4:H${3 + monthlyRows.length}`).format.numberFormat = "#,##0.00";
+  sheet.getRange(`E3:H${3 + monthlyRows.length}`).format.borders = {
+    preset: "inside",
+    style: "thin",
+    color: "#E5E7EB",
+  };
+
+  sheet.freezePanes.freezeRows(3);
+  sheet.getRange("A21:C23").merge();
+  sheet.getRange("A21").values = [[
+    "Excel 的“每日里程非零”工作表列出全部正里程记录；未出现的车辆×日期组合按用户确认均为 0 km。含全部 0 km 的逐行明细保存在同目录 CSV：G7车辆每日里程_20220101-20260720.csv。",
+  ]];
+  sheet.getRange("A21:C23").format = {
+    fill: "#ECFDF5",
+    font: { color: "#065F46", italic: true },
+    wrapText: true,
+    verticalAlignment: "center",
+  };
+  sheet.getRange(`A1:H${3 + monthlyRows.length}`).format.font = { name: "Aptos", size: 10 };
+  sheet.getRange(`A1:A${3 + monthlyRows.length}`).format.columnWidth = 24;
+  sheet.getRange(`B1:B${3 + monthlyRows.length}`).format.columnWidth = 18;
+  sheet.getRange(`C1:C${3 + monthlyRows.length}`).format.columnWidth = 30;
+  sheet.getRange(`D1:D${3 + monthlyRows.length}`).format.columnWidth = 3;
+  sheet.getRange(`E1:E${3 + monthlyRows.length}`).format.columnWidth = 12;
+  sheet.getRange(`F1:H${3 + monthlyRows.length}`).format.columnWidth = 18;
+}
+
+async function buildPositiveDailySheet(sheet) {
+  sheet.showGridLines = false;
+  const headers = ["日期", "车牌号", "机构", "每日里程(km)"];
+  sheet.getRange("A1:D1").values = [headers];
+  sheet.getRange("A1:D1").format = headerFormat();
+  const rows = [];
+  for (const vehicle of sortedVehicles) {
+    for (const date of dateOrder) {
+      const mileage = vehicle.values.get(date) ?? 0;
+      if (mileage <= 0) continue;
+      rows.push([
+        new Date(`${date}T00:00:00+08:00`),
+        vehicle.plate,
+        vehicle.organization,
+        mileage,
+      ]);
+    }
+  }
+  const chunkSize = 1000;
+  for (let start = 0; start < rows.length; start += chunkSize) {
+    const chunk = rows.slice(start, start + chunkSize);
+    sheet.getRangeByIndexes(start + 1, 0, chunk.length, headers.length).values = chunk;
+  }
+  sheet.getRange(`A2:A${rows.length + 1}`).format.numberFormat = "yyyy-mm-dd";
+  sheet.getRange(`D2:D${rows.length + 1}`).format.numberFormat = "#,##0.00";
+  sheet.freezePanes.freezeRows(1);
+  [14, 16, 30, 18].forEach((width, index) => {
+    sheet.getRangeByIndexes(0, index, rows.length + 1, 1).format.columnWidth = width;
+  });
+}
+
+async function buildStatisticSheet(sheet) {
+  sheet.showGridLines = false;
+  const headers = [
+    "月份",
+    "车牌号",
+    "所属机构",
+    "来源机构",
+    "车长(米)",
+    "厢型",
+    "运行时长",
+    "行驶里程(KM)",
+    "来源文件",
+  ];
+  sheet.getRange("A1:I1").values = [headers];
+  sheet.getRange("A1:I1").format = headerFormat();
+  const chunkSize = 1000;
+  for (let start = 0; start < statisticRows.length; start += chunkSize) {
+    const chunk = statisticRows.slice(start, start + chunkSize);
+    sheet.getRangeByIndexes(start + 1, 0, chunk.length, headers.length).values = chunk;
+  }
+  sheet.getRange(`E2:E${statisticRows.length + 1}`).format.numberFormat = "0.0";
+  sheet.getRange(`H2:H${statisticRows.length + 1}`).format.numberFormat = "#,##0.00";
+  sheet.freezePanes.freezeRows(1);
+  const widths = [12, 16, 28, 28, 12, 16, 18, 18, 34];
+  widths.forEach((width, index) => {
+    sheet.getRangeByIndexes(0, index, statisticRows.length + 1, 1).format.columnWidth = width;
+  });
+}
+
+async function buildMappingSheet(sheet) {
+  sheet.showGridLines = false;
+  const headers = ["车牌号", "机构", "VIN", "终端号", "映射状态", "期间里程(km)", "正里程天数", "0 km天数"];
+  sheet.getRange("A1:H1").values = [headers];
+  sheet.getRange("A1:H1").format = headerFormat();
+  const rows = sortedVehicles.map((vehicle) => {
+    const mapped = mapping.get(vehicle.plate);
+    const allValues = dateOrder.map((date) => vehicle.values.get(date) ?? 0);
+    const positiveDays = allValues.filter((value) => value > 0).length;
+    return [
+      vehicle.plate,
+      vehicle.organization,
+      mapped?.vin ?? "",
+      mapped?.phone ?? "",
+      mapped ? "已映射" : "未映射",
+      round(allValues.reduce((sum, value) => sum + value, 0)),
+      positiveDays,
+      dateOrder.length - positiveDays,
+    ];
+  });
+  sheet.getRangeByIndexes(1, 0, rows.length, headers.length).values = rows;
+  sheet.getRange(`F2:F${rows.length + 1}`).format.numberFormat = "#,##0.00";
+  sheet.getRange(`E2:E${rows.length + 1}`).conditionalFormats.add("containsText", {
+    text: "未映射",
+    format: { fill: "#FEE2E2", font: { color: "#991B1B", bold: true } },
+  });
+  sheet.freezePanes.freezeRows(1);
+  [16, 30, 22, 18, 14, 18, 14, 14].forEach((width, index) => {
+    sheet.getRangeByIndexes(0, index, rows.length + 1, 1).format.columnWidth = width;
+  });
+}
+
+async function buildBatchSheet(sheet) {
+  sheet.showGridLines = false;
+  const headers = [
+    "类型",
+    "月份",
+    "开始日期",
+    "结束日期",
+    "来源文件",
+    "车辆数",
+    "日期列数",
+    "正里程单元格",
+    "0 km 单元格",
+    "合计里程(km)",
+  ];
+  sheet.getRange("A1:J1").values = [headers];
+  sheet.getRange("A1:J1").format = headerFormat();
+  const rows = [
+    ...dailyBatchManifest.map((batch) => [
+      batch.type,
+      batch.month,
+      new Date(`${batch.date_from}T00:00:00+08:00`),
+      new Date(`${batch.date_to}T00:00:00+08:00`),
+      batch.file,
+      batch.vehicle_rows,
+      batch.date_columns,
+      batch.positive_cells,
+      batch.zero_cells,
+      batch.total_km,
+    ]),
+    ...statisticBatchManifest.map((batch) => [
+      batch.type,
+      batch.month,
+      new Date(`${batch.date_from}T00:00:00+08:00`),
+      new Date(`${batch.date_to}T00:00:00+08:00`),
+      batch.file,
+      batch.vehicle_rows,
+      "",
+      "",
+      "",
+      batch.total_km,
+    ]),
+  ];
+  sheet.getRangeByIndexes(1, 0, rows.length, headers.length).values = rows;
+  sheet.getRange(`C2:D${rows.length + 1}`).format.numberFormat = "yyyy-mm-dd";
+  sheet.getRange(`F2:J${rows.length + 1}`).format.numberFormat = "#,##0.00";
+  sheet.freezePanes.freezeRows(1);
+  [18, 12, 14, 14, 36, 12, 12, 18, 18, 18].forEach((width, index) => {
+    sheet.getRangeByIndexes(0, index, rows.length + 1, 1).format.columnWidth = width;
+  });
+}
+
+async function readFirstSheetValues(file) {
+  const input = await FileBlob.load(file);
+  const workbook = await SpreadsheetFile.importXlsx(input);
+  const sheet = workbook.worksheets.getItemAt(0);
+  const usedRange = sheet.getUsedRange(true);
+  return usedRange?.values ?? [];
+}
+
+async function sortedXlsxFiles(directory) {
+  const names = (await fs.readdir(directory))
+    .filter((name) => name.endsWith(".xlsx"))
+    .sort((a, b) => extractTaskId(a) - extractTaskId(b));
+  return names.map((name) => path.join(directory, name));
+}
+
+function extractTaskId(file) {
+  const match = path.basename(file).match(/-(\d+)\.xlsx$/);
+  assert(match, `无法从文件名解析任务号：${file}`);
+  return Number(match[1]);
+}
+
+function buildMonths() {
+  const result = [];
+  for (let year = 2022, month = 1; year < 2026 || (year === 2026 && month <= 7); ) {
+    const naturalLastDay = new Date(Date.UTC(year, month, 0)).getUTCDate();
+    const lastDay = year === 2026 && month === 7 ? 20 : naturalLastDay;
+    result.push({
+      key: `${year}-${pad(month)}`,
+      year,
+      month,
+      dayCount: lastDay,
+      dateFrom: `${year}-${pad(month)}-01`,
+      dateTo: `${year}-${pad(month)}-${pad(lastDay)}`,
+    });
+    month += 1;
+    if (month === 13) {
+      year += 1;
+      month = 1;
+    }
+  }
+  return result;
+}
+
+async function readPriorMapping(csvPath) {
+  const text = await fs.readFile(csvPath, "utf8");
+  const lines = text.replace(/^\uFEFF/, "").split(/\r?\n/);
+  const result = new Map();
+  for (const line of lines.slice(1)) {
+    if (!line) continue;
+    const columns = parseCsvLine(line);
+    const [vin, plate, phone] = columns;
+    if (!vin || !plate) continue;
+    const current = result.get(plate);
+    if (current && current.vin !== vin) {
+      result.delete(plate);
+      continue;
+    }
+    result.set(plate, { vin, phone: phone ?? "" });
+  }
+  return result;
+}
+
+async function writeImportCsv(file, vehicleRows, dates) {
+  const stream = fsSync.createWriteStream(file, { encoding: "utf8" });
+  stream.write("\uFEFFplate,date,daily_mileage_km\n");
+  for (const vehicle of vehicleRows) {
+    for (const date of dates) {
+      const value = vehicle.values.get(date) ?? 0;
+      if (!stream.write(`${csvCell(vehicle.plate)},${date},${numberText(value)}\n`)) {
+        await once(stream, "drain");
+      }
+    }
+  }
+  stream.end();
+  await once(stream, "finish");
+}
+
+function headerFormat() {
+  return {
+    fill: "#0F766E",
+    font: { bold: true, color: "#FFFFFF" },
+    horizontalAlignment: "center",
+    verticalAlignment: "center",
+    wrapText: true,
+    borders: { preset: "outside", style: "thin", color: "#115E59" },
+  };
+}
+
+function findHeader(headers, names) {
+  return headers.findIndex((header) => names.includes(header));
+}
+
+function parseCsvLine(line) {
+  const result = [];
+  let value = "";
+  let quoted = false;
+  for (let index = 0; index < line.length; index += 1) {
+    const char = line[index];
+    if (quoted) {
+      if (char === '"' && line[index + 1] === '"') {
+        value += '"';
+        index += 1;
+      } else if (char === '"') {
+        quoted = false;
+      } else {
+        value += char;
+      }
+    } else if (char === '"') {
+      quoted = true;
+    } else if (char === ",") {
+      result.push(value);
+      value = "";
+    } else {
+      value += char;
+    }
+  }
+  result.push(value);
+  return result;
+}
+
+function csvCell(value) {
+  const text = cleanText(value);
+  return /[",\r\n]/.test(text) ? `"${text.replaceAll('"', '""')}"` : text;
+}
+
+function cleanText(value) {
+  return value === null || value === undefined ? "" : String(value).trim();
+}
+
+function numberValue(value) {
+  const number = Number(value);
+  return Number.isFinite(number) ? number : 0;
+}
+
+function numberText(value) {
+  return String(round(value));
+}
+
+function round(value) {
+  return Math.round((value + Number.EPSILON) * 100) / 100;
+}
+
+function pad(value) {
+  return String(value).padStart(2, "0");
+}
+
+function assert(condition, message) {
+  if (!condition) throw new Error(message);
+}

tmp/g7-mileage-history-20260724/importer.go

@@ -0,0 +1,787 @@
+package main
+
+import (
+	"compress/gzip"
+	"context"
+	"database/sql"
+	"encoding/csv"
+	"encoding/json"
+	"errors"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	mysql "github.com/go-sql-driver/mysql"
+)
+
+const (
+	g7Protocol      = "JT808"
+	g7SourceID      = int64(661200)
+	g7SourceIP      = "manual-g7s-excel"
+	g7SourceCode    = "g7s_excel"
+	g7PlatformName  = "G7s Excel Override"
+	g7QualityReason = "manual_g7s_gps_quarterly_import_20260101_20260630_20260728"
+	dateFrom        = "2026-01-01"
+	dateTo          = "2026-06-30"
+	expectedDays    = 181
+)
+
+type mapping struct {
+	VIN       string
+	Ambiguous bool
+}
+
+type sourceStats struct {
+	Rows       int64   `json:"rows"`
+	Vehicles   int     `json:"vehicles"`
+	Dates      int     `json:"dates"`
+	Positive   int64   `json:"positive_rows"`
+	Zero       int64   `json:"zero_rows"`
+	TotalKM    float64 `json:"total_km"`
+	MinDate    string  `json:"min_date"`
+	MaxDate    string  `json:"max_date"`
+	PlateCount int     `json:"plate_count"`
+}
+
+type stageStats struct {
+	Rows               int64   `json:"rows"`
+	Vehicles           int     `json:"vehicles"`
+	Dates              int     `json:"dates"`
+	Positive           int64   `json:"positive_rows"`
+	Zero               int64   `json:"zero_rows"`
+	TotalKM            float64 `json:"total_km"`
+	MappedPlates       int     `json:"mapped_plates"`
+	UnmappedPlates     int     `json:"unmapped_plates"`
+	AmbiguousPlates    int     `json:"ambiguous_plates"`
+	VINCollisionPlates int     `json:"vin_collision_plates"`
+}
+
+type existingStats struct {
+	ExistingFinalRows          int64   `json:"existing_final_rows"`
+	NewFinalRows               int64   `json:"new_final_rows"`
+	ChangedExistingFinalRows   int64   `json:"changed_existing_final_rows"`
+	UnchangedExistingFinalRows int64   `json:"unchanged_existing_final_rows"`
+	OtherSourceFinalRows       int64   `json:"other_source_final_rows"`
+	OtherSelectedCandidateRows int64   `json:"other_selected_candidate_rows"`
+	ExistingFinalTotalKM       float64 `json:"existing_final_total_km"`
+}
+
+type result struct {
+	Mode                 string        `json:"mode"`
+	StartedAt            string        `json:"started_at"`
+	CompletedAt          string        `json:"completed_at"`
+	Source               sourceStats   `json:"source"`
+	Stage                stageStats    `json:"stage"`
+	Existing             existingStats `json:"existing"`
+	UnmappedPlates       []string      `json:"unmapped_plates"`
+	AmbiguousPlates      []string      `json:"ambiguous_plates"`
+	CollisionPlates      []string      `json:"vin_collision_plates"`
+	BackupFinal          string        `json:"backup_final,omitempty"`
+	BackupCandidates     string        `json:"backup_candidates,omitempty"`
+	FinalMatchedRows     int64         `json:"final_matched_rows"`
+	FinalTotalKM         float64       `json:"final_total_km"`
+	CandidateMatchedRows int64         `json:"candidate_matched_rows"`
+	OtherSelectedRows    int64         `json:"other_selected_rows"`
+	SourceID             int64         `json:"source_id"`
+}
+
+func main() {
+	if err := run(); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}
+
+func run() error {
+	var inputPath, mappingPath, dsn, backupDir string
+	var apply bool
+	var timeout time.Duration
+	flag.StringVar(&inputPath, "input", "", "normalized CSV or CSV.gz")
+	flag.StringVar(&mappingPath, "mapping-csv", "", "optional existing vin,plate mapping CSV")
+	flag.StringVar(&dsn, "mysql-dsn", strings.TrimSpace(os.Getenv("MYSQL_DSN")), "MySQL DSN")
+	flag.StringVar(&backupDir, "backup-dir", "/tmp/g7-gps-quarterly-backup-20260728", "backup directory for apply")
+	flag.BoolVar(&apply, "apply", false, "apply changes; default is dry-run")
+	flag.DurationVar(&timeout, "timeout", 30*time.Minute, "overall timeout")
+	flag.Parse()
+
+	if strings.TrimSpace(inputPath) == "" {
+		return errors.New("-input is required")
+	}
+	if strings.TrimSpace(dsn) == "" {
+		return errors.New("MYSQL_DSN or -mysql-dsn is required")
+	}
+	normalized, err := normalizedDSN(dsn)
+	if err != nil {
+		return err
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+	db, err := sql.Open("mysql", normalized)
+	if err != nil {
+		return err
+	}
+	defer db.Close()
+	db.SetMaxOpenConns(2)
+	db.SetMaxIdleConns(2)
+	if err := db.PingContext(ctx); err != nil {
+		return err
+	}
+	conn, err := db.Conn(ctx)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	started := time.Now()
+	source, inputPlates, err := scanInput(inputPath)
+	if err != nil {
+		return err
+	}
+	if source.MinDate != dateFrom || source.MaxDate != dateTo || source.Dates != expectedDays {
+		return fmt.Errorf("unexpected input range: %s..%s (%d dates)", source.MinDate, source.MaxDate, source.Dates)
+	}
+	mappings, err := loadMappings(ctx, conn)
+	if err != nil {
+		return err
+	}
+	if mappingPath != "" {
+		if err := mergeMappingCSV(mappingPath, mappings); err != nil {
+			return err
+		}
+	}
+	resolution := resolveInputPlates(inputPlates, mappings)
+	if err := createStage(ctx, conn); err != nil {
+		return err
+	}
+	stage, err := loadStage(ctx, conn, inputPath, resolution)
+	if err != nil {
+		return err
+	}
+	stage.MappedPlates = len(resolution.Mapped)
+	stage.UnmappedPlates = len(resolution.Unmapped)
+	stage.AmbiguousPlates = len(resolution.Ambiguous)
+	stage.VINCollisionPlates = len(resolution.Collisions)
+	if stage.Rows != int64(stage.MappedPlates*expectedDays) {
+		return fmt.Errorf("stage row count mismatch: got %d, expected %d", stage.Rows, stage.MappedPlates*expectedDays)
+	}
+	existing, err := inspectExisting(ctx, conn)
+	if err != nil {
+		return err
+	}
+	out := result{
+		Mode:            "dry_run",
+		StartedAt:       started.Format(time.RFC3339),
+		Source:          source,
+		Stage:           stage,
+		Existing:        existing,
+		UnmappedPlates:  resolution.Unmapped,
+		AmbiguousPlates: resolution.Ambiguous,
+		CollisionPlates: resolution.Collisions,
+		SourceID:        g7SourceID,
+	}
+
+	if apply {
+		out.Mode = "apply"
+		if err := os.MkdirAll(backupDir, 0o700); err != nil {
+			return err
+		}
+		out.BackupFinal = filepath.Join(backupDir, "vehicle_daily_mileage_before.csv.gz")
+		out.BackupCandidates = filepath.Join(backupDir, "vehicle_daily_mileage_source_before.csv.gz")
+		if err := backupQuery(ctx, conn, out.BackupFinal, `
+SELECT m.*
+FROM vehicle_daily_mileage m
+JOIN tmp_g7_mileage_import s
+  ON s.vin = m.vin AND s.stat_date = m.stat_date
+WHERE m.protocol = 'JT808'
+ORDER BY m.vin, m.stat_date`); err != nil {
+			return fmt.Errorf("backup final rows: %w", err)
+		}
+		if err := backupQuery(ctx, conn, out.BackupCandidates, `
+SELECT c.*
+FROM vehicle_daily_mileage_source c
+JOIN tmp_g7_mileage_import s
+  ON s.vin = c.vin AND s.stat_date = c.stat_date
+WHERE c.protocol = 'JT808'
+ORDER BY c.vin, c.stat_date, c.source_key`); err != nil {
+			return fmt.Errorf("backup candidate rows: %w", err)
+		}
+		finalRows, finalTotal, candidateRows, otherSelected, err := applyImport(ctx, conn)
+		if err != nil {
+			return err
+		}
+		out.FinalMatchedRows = finalRows
+		out.FinalTotalKM = finalTotal
+		out.CandidateMatchedRows = candidateRows
+		out.OtherSelectedRows = otherSelected
+	}
+	out.CompletedAt = time.Now().Format(time.RFC3339)
+	encoder := json.NewEncoder(os.Stdout)
+	encoder.SetIndent("", "  ")
+	return encoder.Encode(out)
+}
+
+type plateResolution struct {
+	Mapped     map[string]string
+	Unmapped   []string
+	Ambiguous  []string
+	Collisions []string
+}
+
+func resolveInputPlates(plates map[string]struct{}, mappings map[string]mapping) plateResolution {
+	result := plateResolution{Mapped: make(map[string]string)}
+	vinToPlates := make(map[string][]string)
+	for plate := range plates {
+		value, ok := mappings[plate]
+		switch {
+		case !ok:
+			result.Unmapped = append(result.Unmapped, plate)
+		case value.Ambiguous:
+			result.Ambiguous = append(result.Ambiguous, plate)
+		default:
+			result.Mapped[plate] = value.VIN
+			vinToPlates[value.VIN] = append(vinToPlates[value.VIN], plate)
+		}
+	}
+	for _, presentPlates := range vinToPlates {
+		if len(presentPlates) < 2 {
+			continue
+		}
+		for _, plate := range presentPlates {
+			delete(result.Mapped, plate)
+			result.Collisions = append(result.Collisions, plate)
+		}
+	}
+	sort.Strings(result.Unmapped)
+	sort.Strings(result.Ambiguous)
+	sort.Strings(result.Collisions)
+	return result
+}
+
+func scanInput(inputPath string) (sourceStats, map[string]struct{}, error) {
+	reader, closeReader, err := openCSV(inputPath)
+	if err != nil {
+		return sourceStats{}, nil, err
+	}
+	defer closeReader()
+	csvReader := csv.NewReader(reader)
+	header, err := csvReader.Read()
+	if err != nil {
+		return sourceStats{}, nil, err
+	}
+	if len(header) < 3 {
+		return sourceStats{}, nil, errors.New("input CSV needs plate,date,daily_mileage_km")
+	}
+	header[0] = strings.TrimPrefix(header[0], "\uFEFF")
+	if header[0] != "plate" || header[1] != "date" || header[2] != "daily_mileage_km" {
+		return sourceStats{}, nil, fmt.Errorf("unexpected CSV header: %v", header)
+	}
+	plates := make(map[string]struct{})
+	dates := make(map[string]struct{})
+	stats := sourceStats{}
+	for {
+		record, readErr := csvReader.Read()
+		if errors.Is(readErr, io.EOF) {
+			break
+		}
+		if readErr != nil {
+			return sourceStats{}, nil, readErr
+		}
+		if len(record) < 3 {
+			return sourceStats{}, nil, fmt.Errorf("short CSV row at %d", stats.Rows+2)
+		}
+		plate := strings.TrimSpace(record[0])
+		date := strings.TrimSpace(record[1])
+		mileage, parseErr := strconv.ParseFloat(strings.TrimSpace(record[2]), 64)
+		if parseErr != nil || mileage < 0 || mileage > 2500 {
+			return sourceStats{}, nil, fmt.Errorf("invalid mileage at row %d: %q", stats.Rows+2, record[2])
+		}
+		if _, parseErr = time.Parse("2006-01-02", date); parseErr != nil {
+			return sourceStats{}, nil, fmt.Errorf("invalid date at row %d: %q", stats.Rows+2, date)
+		}
+		if plate == "" {
+			return sourceStats{}, nil, fmt.Errorf("empty plate at row %d", stats.Rows+2)
+		}
+		plates[plate] = struct{}{}
+		dates[date] = struct{}{}
+		stats.Rows++
+		stats.TotalKM += mileage
+		if mileage > 0 {
+			stats.Positive++
+		} else {
+			stats.Zero++
+		}
+		if stats.MinDate == "" || date < stats.MinDate {
+			stats.MinDate = date
+		}
+		if date > stats.MaxDate {
+			stats.MaxDate = date
+		}
+	}
+	stats.PlateCount = len(plates)
+	stats.Vehicles = len(plates)
+	stats.Dates = len(dates)
+	stats.TotalKM = round(stats.TotalKM)
+	return stats, plates, nil
+}
+
+func loadMappings(ctx context.Context, conn *sql.Conn) (map[string]mapping, error) {
+	rows, err := conn.QueryContext(ctx, `
+SELECT plate, vin
+FROM (
+  SELECT TRIM(plate) AS plate, TRIM(vin) AS vin
+  FROM vehicle
+  WHERE plate IS NOT NULL AND TRIM(plate) <> ''
+    AND vin IS NOT NULL AND TRIM(vin) <> ''
+  UNION ALL
+  SELECT TRIM(plate) AS plate, TRIM(vin) AS vin
+  FROM vehicle_identifier
+  WHERE enabled = 1 AND plate IS NOT NULL AND TRIM(plate) <> ''
+    AND vin IS NOT NULL AND TRIM(vin) <> ''
+) mappings`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	result := make(map[string]mapping)
+	for rows.Next() {
+		var plate, vin string
+		if err := rows.Scan(&plate, &vin); err != nil {
+			return nil, err
+		}
+		current, ok := result[plate]
+		if !ok {
+			result[plate] = mapping{VIN: vin}
+		} else if current.VIN != vin {
+			current.Ambiguous = true
+			result[plate] = current
+		}
+	}
+	return result, rows.Err()
+}
+
+func mergeMappingCSV(inputPath string, mappings map[string]mapping) error {
+	file, err := os.Open(inputPath)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	reader := csv.NewReader(file)
+	header, err := reader.Read()
+	if err != nil {
+		return err
+	}
+	if len(header) < 2 {
+		return errors.New("mapping CSV must contain vin,plate")
+	}
+	header[0] = strings.TrimPrefix(header[0], "\uFEFF")
+	if header[0] != "vin" || header[1] != "plate" {
+		return fmt.Errorf("unexpected mapping CSV header: %v", header[:2])
+	}
+	for {
+		record, readErr := reader.Read()
+		if errors.Is(readErr, io.EOF) {
+			break
+		}
+		if readErr != nil {
+			return readErr
+		}
+		if len(record) < 2 {
+			continue
+		}
+		vin := strings.TrimSpace(record[0])
+		plate := strings.TrimSpace(record[1])
+		if vin == "" || plate == "" {
+			continue
+		}
+		current, ok := mappings[plate]
+		if !ok {
+			mappings[plate] = mapping{VIN: vin}
+		} else if current.VIN != vin {
+			current.Ambiguous = true
+			mappings[plate] = current
+		}
+	}
+	return nil
+}
+
+func createStage(ctx context.Context, conn *sql.Conn) error {
+	_, err := conn.ExecContext(ctx, `
+DROP TEMPORARY TABLE IF EXISTS tmp_g7_mileage_import`)
+	if err != nil {
+		return err
+	}
+	_, err = conn.ExecContext(ctx, `
+CREATE TEMPORARY TABLE tmp_g7_mileage_import (
+  vin varchar(32) NOT NULL,
+  plate varchar(32) NOT NULL,
+  stat_date date NOT NULL,
+  daily_mileage_km decimal(18,3) NOT NULL,
+  PRIMARY KEY (vin, stat_date),
+  KEY idx_tmp_plate (plate),
+  KEY idx_tmp_date (stat_date)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci`)
+	return err
+}
+
+func loadStage(ctx context.Context, conn *sql.Conn, inputPath string, resolution plateResolution) (stageStats, error) {
+	reader, closeReader, err := openCSV(inputPath)
+	if err != nil {
+		return stageStats{}, err
+	}
+	defer closeReader()
+	csvReader := csv.NewReader(reader)
+	if _, err := csvReader.Read(); err != nil {
+		return stageStats{}, err
+	}
+	tx, err := conn.BeginTx(ctx, nil)
+	if err != nil {
+		return stageStats{}, err
+	}
+	defer tx.Rollback()
+
+	type stageRow struct {
+		VIN, Plate, Date string
+		Mileage          float64
+	}
+	batch := make([]stageRow, 0, 1000)
+	flush := func() error {
+		if len(batch) == 0 {
+			return nil
+		}
+		var query strings.Builder
+		query.WriteString("INSERT INTO tmp_g7_mileage_import (vin, plate, stat_date, daily_mileage_km) VALUES ")
+		args := make([]any, 0, len(batch)*4)
+		for index, row := range batch {
+			if index > 0 {
+				query.WriteByte(',')
+			}
+			query.WriteString("(?,?,?,?)")
+			args = append(args, row.VIN, row.Plate, row.Date, row.Mileage)
+		}
+		if _, execErr := tx.ExecContext(ctx, query.String(), args...); execErr != nil {
+			return execErr
+		}
+		batch = batch[:0]
+		return nil
+	}
+	for {
+		record, readErr := csvReader.Read()
+		if errors.Is(readErr, io.EOF) {
+			break
+		}
+		if readErr != nil {
+			return stageStats{}, readErr
+		}
+		plate := strings.TrimSpace(record[0])
+		vin, ok := resolution.Mapped[plate]
+		if !ok {
+			continue
+		}
+		mileage, _ := strconv.ParseFloat(strings.TrimSpace(record[2]), 64)
+		batch = append(batch, stageRow{
+			VIN: vin, Plate: plate, Date: strings.TrimSpace(record[1]), Mileage: mileage,
+		})
+		if len(batch) == cap(batch) {
+			if err := flush(); err != nil {
+				return stageStats{}, err
+			}
+		}
+	}
+	if err := flush(); err != nil {
+		return stageStats{}, err
+	}
+	if err := tx.Commit(); err != nil {
+		return stageStats{}, err
+	}
+	var stats stageStats
+	var nullableSum sql.NullFloat64
+	err = conn.QueryRowContext(ctx, `
+SELECT COUNT(*), COUNT(DISTINCT vin), COUNT(DISTINCT stat_date),
+       SUM(daily_mileage_km > 0), SUM(daily_mileage_km = 0),
+       SUM(daily_mileage_km)
+FROM tmp_g7_mileage_import`).Scan(
+		&stats.Rows, &stats.Vehicles, &stats.Dates, &stats.Positive, &stats.Zero, &nullableSum,
+	)
+	if nullableSum.Valid {
+		stats.TotalKM = round(nullableSum.Float64)
+	}
+	return stats, err
+}
+
+func inspectExisting(ctx context.Context, conn *sql.Conn) (existingStats, error) {
+	var stats existingStats
+	var nullableSum sql.NullFloat64
+	err := conn.QueryRowContext(ctx, `
+SELECT
+  SUM(m.vin IS NOT NULL),
+  SUM(m.vin IS NULL),
+  SUM(m.vin IS NOT NULL AND ABS(m.daily_mileage_km - s.daily_mileage_km) > 0.0005),
+  SUM(m.vin IS NOT NULL AND ABS(m.daily_mileage_km - s.daily_mileage_km) <= 0.0005),
+  SUM(m.vin IS NOT NULL AND COALESCE(m.source_id, 0) <> ?),
+  SUM(CASE WHEN m.vin IS NOT NULL THEN m.daily_mileage_km ELSE 0 END)
+FROM tmp_g7_mileage_import s
+LEFT JOIN vehicle_daily_mileage m
+  ON m.vin = s.vin AND m.stat_date = s.stat_date AND m.protocol = 'JT808'`, g7SourceID).Scan(
+		&stats.ExistingFinalRows,
+		&stats.NewFinalRows,
+		&stats.ChangedExistingFinalRows,
+		&stats.UnchangedExistingFinalRows,
+		&stats.OtherSourceFinalRows,
+		&nullableSum,
+	)
+	if err != nil {
+		return stats, err
+	}
+	if nullableSum.Valid {
+		stats.ExistingFinalTotalKM = round(nullableSum.Float64)
+	}
+	err = conn.QueryRowContext(ctx, `
+SELECT COUNT(*)
+FROM vehicle_daily_mileage_source c
+JOIN tmp_g7_mileage_import s
+  ON s.vin = c.vin AND s.stat_date = c.stat_date
+WHERE c.protocol = 'JT808' AND c.is_selected = 1
+  AND c.source_key <> CONCAT('JT808:', c.vin, '@PLATFORM:g7s_excel')`).Scan(
+		&stats.OtherSelectedCandidateRows,
+	)
+	return stats, err
+}
+
+func applyImport(ctx context.Context, conn *sql.Conn) (int64, float64, int64, int64, error) {
+	tx, err := conn.BeginTx(ctx, &sql.TxOptions{Isolation: sql.LevelReadCommitted})
+	if err != nil {
+		return 0, 0, 0, 0, err
+	}
+	defer tx.Rollback()
+	if _, err := tx.ExecContext(ctx, `
+UPDATE vehicle_daily_mileage_source c
+JOIN tmp_g7_mileage_import s
+  ON s.vin = c.vin AND s.stat_date = c.stat_date
+SET c.is_selected = 0
+WHERE c.protocol = 'JT808'
+  AND c.source_key <> CONCAT('JT808:', c.vin, '@PLATFORM:g7s_excel')
+  AND c.is_selected <> 0`); err != nil {
+		return 0, 0, 0, 0, fmt.Errorf("clear other selected candidates: %w", err)
+	}
+	if _, err := tx.ExecContext(ctx, `
+INSERT INTO vehicle_daily_mileage_source (
+  vin, stat_date, protocol, source_key, source_ip, source_endpoint,
+  platform_name, first_total_mileage_km, latest_total_mileage_km,
+  daily_mileage_km, sample_count, first_event_time, latest_event_time,
+  quality_status, quality_reason, is_selected
+)
+SELECT
+  s.vin, s.stat_date, 'JT808',
+  CONCAT('JT808:', s.vin, '@PLATFORM:g7s_excel'),
+  'manual-g7s-excel', 'manual-g7s-excel',
+  'G7s Excel Override', NULL, NULL,
+  s.daily_mileage_km, 1,
+  TIMESTAMP(s.stat_date, '00:00:00'),
+  TIMESTAMP(s.stat_date, '23:59:59'),
+  'OK', ?, 1
+FROM tmp_g7_mileage_import s
+ON DUPLICATE KEY UPDATE
+  source_ip = VALUES(source_ip),
+  source_endpoint = VALUES(source_endpoint),
+  platform_name = VALUES(platform_name),
+  first_total_mileage_km = NULL,
+  latest_total_mileage_km = NULL,
+  daily_mileage_km = VALUES(daily_mileage_km),
+  sample_count = VALUES(sample_count),
+  first_event_time = VALUES(first_event_time),
+  latest_event_time = VALUES(latest_event_time),
+  quality_status = VALUES(quality_status),
+  quality_reason = VALUES(quality_reason),
+  is_selected = 1`, g7QualityReason); err != nil {
+		return 0, 0, 0, 0, fmt.Errorf("upsert G7 candidates: %w", err)
+	}
+	if _, err := tx.ExecContext(ctx, `
+INSERT INTO vehicle_daily_mileage (
+  vin, stat_date, protocol, source_id, daily_mileage_km,
+  latest_total_mileage_km, updated_at
+)
+SELECT vin, stat_date, 'JT808', ?, daily_mileage_km, NULL, NOW()
+FROM tmp_g7_mileage_import
+ON DUPLICATE KEY UPDATE
+  source_id = VALUES(source_id),
+  daily_mileage_km = VALUES(daily_mileage_km),
+  latest_total_mileage_km = NULL,
+  updated_at = NOW()`, g7SourceID); err != nil {
+		return 0, 0, 0, 0, fmt.Errorf("upsert final mileage: %w", err)
+	}
+	if _, err := tx.ExecContext(ctx, `
+UPDATE vehicle_data_source
+SET latest_seen_at = GREATEST(COALESCE(latest_seen_at, '2026-06-30 23:59:59'), '2026-06-30 23:59:59'),
+    first_seen_at = LEAST(COALESCE(first_seen_at, '2026-01-01 00:00:00'), '2026-01-01 00:00:00'),
+    latest_source_endpoint = 'manual-g7s-excel',
+    platform_name = 'G7s Excel Override',
+    source_code = 'g7s_excel',
+    source_kind = 'PLATFORM',
+    trust_priority = 0,
+    enabled = 1,
+    remark = 'Manual GPS override imported from G7s quarterly daily mileage reports for 2026-01-01 through 2026-06-30 on 2026-07-28'
+WHERE id = ? AND protocol = 'JT808' AND source_ip = 'manual-g7s-excel'`, g7SourceID); err != nil {
+		return 0, 0, 0, 0, fmt.Errorf("update G7 source metadata: %w", err)
+	}
+	var finalRows, candidateRows, otherSelected int64
+	var finalSum sql.NullFloat64
+	if err := tx.QueryRowContext(ctx, `
+SELECT COUNT(*), SUM(m.daily_mileage_km)
+FROM vehicle_daily_mileage m
+JOIN tmp_g7_mileage_import s
+  ON s.vin = m.vin AND s.stat_date = m.stat_date
+WHERE m.protocol = 'JT808' AND m.source_id = ?
+  AND ABS(m.daily_mileage_km - s.daily_mileage_km) <= 0.0005`, g7SourceID).Scan(
+		&finalRows, &finalSum,
+	); err != nil {
+		return 0, 0, 0, 0, err
+	}
+	if err := tx.QueryRowContext(ctx, `
+SELECT COUNT(*)
+FROM vehicle_daily_mileage_source c
+JOIN tmp_g7_mileage_import s
+  ON s.vin = c.vin AND s.stat_date = c.stat_date
+WHERE c.protocol = 'JT808'
+  AND c.source_key = CONCAT('JT808:', c.vin, '@PLATFORM:g7s_excel')
+  AND c.is_selected = 1
+  AND ABS(c.daily_mileage_km - s.daily_mileage_km) <= 0.0005`).Scan(&candidateRows); err != nil {
+		return 0, 0, 0, 0, err
+	}
+	if err := tx.QueryRowContext(ctx, `
+SELECT COUNT(*)
+FROM vehicle_daily_mileage_source c
+JOIN tmp_g7_mileage_import s
+  ON s.vin = c.vin AND s.stat_date = c.stat_date
+WHERE c.protocol = 'JT808'
+  AND c.source_key <> CONCAT('JT808:', c.vin, '@PLATFORM:g7s_excel')
+  AND c.is_selected = 1`).Scan(&otherSelected); err != nil {
+		return 0, 0, 0, 0, err
+	}
+	var stageRows int64
+	if err := tx.QueryRowContext(ctx, `SELECT COUNT(*) FROM tmp_g7_mileage_import`).Scan(&stageRows); err != nil {
+		return 0, 0, 0, 0, err
+	}
+	if finalRows != stageRows || candidateRows != stageRows || otherSelected != 0 {
+		return 0, 0, 0, 0, fmt.Errorf(
+			"verification failed before commit: stage=%d final=%d candidates=%d other_selected=%d",
+			stageRows, finalRows, candidateRows, otherSelected,
+		)
+	}
+	if err := tx.Commit(); err != nil {
+		return 0, 0, 0, 0, err
+	}
+	return finalRows, round(finalSum.Float64), candidateRows, otherSelected, nil
+}
+
+func backupQuery(ctx context.Context, conn *sql.Conn, outputPath, query string) error {
+	rows, err := conn.QueryContext(ctx, query)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+	columns, err := rows.Columns()
+	if err != nil {
+		return err
+	}
+	file, err := os.OpenFile(outputPath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0o600)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	gzipWriter := gzip.NewWriter(file)
+	defer gzipWriter.Close()
+	csvWriter := csv.NewWriter(gzipWriter)
+	defer csvWriter.Flush()
+	if err := csvWriter.Write(columns); err != nil {
+		return err
+	}
+	raw := make([]sql.RawBytes, len(columns))
+	pointers := make([]any, len(columns))
+	for index := range raw {
+		pointers[index] = &raw[index]
+	}
+	for rows.Next() {
+		if err := rows.Scan(pointers...); err != nil {
+			return err
+		}
+		record := make([]string, len(columns))
+		for index, value := range raw {
+			if value == nil {
+				record[index] = "\\N"
+			} else {
+				record[index] = string(value)
+			}
+		}
+		if err := csvWriter.Write(record); err != nil {
+			return err
+		}
+	}
+	if err := rows.Err(); err != nil {
+		return err
+	}
+	csvWriter.Flush()
+	if err := csvWriter.Error(); err != nil {
+		return err
+	}
+	if err := gzipWriter.Close(); err != nil {
+		return err
+	}
+	return file.Sync()
+}
+
+func openCSV(inputPath string) (io.Reader, func(), error) {
+	file, err := os.Open(inputPath)
+	if err != nil {
+		return nil, nil, err
+	}
+	closeReader := func() { _ = file.Close() }
+	if !strings.HasSuffix(strings.ToLower(inputPath), ".gz") {
+		return file, closeReader, nil
+	}
+	gzipReader, err := gzip.NewReader(file)
+	if err != nil {
+		file.Close()
+		return nil, nil, err
+	}
+	return gzipReader, func() {
+		_ = gzipReader.Close()
+		_ = file.Close()
+	}, nil
+}
+
+func normalizedDSN(raw string) (string, error) {
+	config, err := mysql.ParseDSN(raw)
+	if err != nil {
+		return "", err
+	}
+	location, err := time.LoadLocation("Asia/Shanghai")
+	if err != nil {
+		return "", err
+	}
+	config.ParseTime = true
+	config.Loc = location
+	config.Timeout = 10 * time.Second
+	config.ReadTimeout = 30 * time.Minute
+	config.WriteTimeout = 30 * time.Minute
+	config.Params = cloneParams(config.Params)
+	config.Params["charset"] = "utf8mb4"
+	return config.FormatDSN(), nil
+}
+
+func cloneParams(input map[string]string) map[string]string {
+	output := make(map[string]string, len(input)+1)
+	for key, value := range input {
+		output[key] = value
+	}
+	return output
+}
+
+func round(value float64) float64 {
+	return float64(int64(value*100+0.5)) / 100
+}

tmp/g7-mileage-history-20260724/schema_probe.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"os"
+	"strings"
+
+	_ "github.com/go-sql-driver/mysql"
+)
+
+func main() {
+	dsn := strings.TrimSpace(os.Getenv("MYSQL_DSN"))
+	if dsn == "" {
+		panic("MYSQL_DSN is required")
+	}
+	db, err := sql.Open("mysql", dsn)
+	if err != nil {
+		panic(err)
+	}
+	defer db.Close()
+	for _, table := range []string{
+		"vehicle_data_source",
+		"vehicle_daily_mileage_source",
+		"vehicle_daily_mileage",
+		"vehicle",
+		"vehicle_identifier",
+	} {
+		var name, ddl string
+		if err := db.QueryRow("SHOW CREATE TABLE "+table).Scan(&name, &ddl); err != nil {
+			panic(err)
+		}
+		fmt.Printf("=== %s ===\n%s\n", name, ddl)
+	}
+	rows, err := db.Query("SELECT * FROM vehicle_data_source WHERE id = 661200")
+	if err != nil {
+		panic(err)
+	}
+	defer rows.Close()
+	columns, err := rows.Columns()
+	if err != nil {
+		panic(err)
+	}
+	if rows.Next() {
+		values := make([]any, len(columns))
+		pointers := make([]any, len(columns))
+		for i := range values {
+			pointers[i] = &values[i]
+		}
+		if err := rows.Scan(pointers...); err != nil {
+			panic(err)
+		}
+		record := make(map[string]any, len(columns))
+		for i, column := range columns {
+			switch value := values[i].(type) {
+			case []byte:
+				record[column] = string(value)
+			default:
+				record[column] = value
+			}
+		}
+		data, _ := json.Marshal(record)
+		fmt.Printf("=== source_661200 ===\n%s\n", data)
+	}
+}

tmp/g7-mileage-history-20260724/verify_final.mjs

@@ -0,0 +1,41 @@
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const inputPath =
+  "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/g7-mileage-history-20260724/merged/G7车辆每日里程及里程统计_20220101-20260720.xlsx";
+const workbook = await SpreadsheetFile.importXlsx(await FileBlob.load(inputPath));
+const sheets = await workbook.inspect({
+  kind: "sheet",
+  include: "id,name",
+  maxChars: 4000,
+});
+const summary = await workbook.inspect({
+  kind: "table",
+  sheetId: "汇总",
+  range: "A1:H25",
+  include: "values,formulas",
+  maxChars: 12000,
+  tableMaxRows: 25,
+  tableMaxCols: 8,
+});
+const daily = await workbook.inspect({
+  kind: "table",
+  sheetId: "每日里程非零",
+  range: "A1:D12",
+  include: "values,formulas",
+  maxChars: 6000,
+  tableMaxRows: 12,
+  tableMaxCols: 4,
+});
+const errors = await workbook.inspect({
+  kind: "match",
+  searchTerm: "#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A",
+  options: { useRegex: true, maxResults: 300 },
+  summary: "post-export formula error scan",
+});
+console.log(JSON.stringify({
+  inputPath,
+  sheets: sheets.ndjson,
+  summary: summary.ndjson,
+  daily: daily.ndjson,
+  errors: errors.ndjson,
+}, null, 2));

tmp/gb32960-export-20260817/build_export.mjs

@@ -0,0 +1,364 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { SpreadsheetFile, Workbook } from "@oai/artifact-tool";
+
+const taskDir = process.env.GB32960_TASK_DIR || "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/tmp/gb32960-export-20260817";
+const outputDir = process.env.GB32960_OUTPUT_DIR || "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/gb32960-export-20260817-agp4377";
+const data = JSON.parse(await fs.readFile(path.join(taskDir, "raw-frames.json"), "utf8"));
+const exportDate = data.query.dateFrom.slice(0, 10);
+const outputPath = path.join(outputDir, `${data.query.plate}_${exportDate}_GB32960原始数据_中文字段.xlsx`);
+
+const categoryNames = {
+  alarm: "报警数据",
+  drive_motor: "驱动电机数据",
+  engine: "发动机数据",
+  extreme: "极值数据",
+  fuel_cell: "燃料电池数据",
+  gd_fc_air_conditioner: "广东燃料电池空调数据",
+  gd_fc_auxiliary: "广东燃料电池辅助系统数据",
+  gd_fc_dcdc: "广东燃料电池 DC/DC 数据",
+  gd_fc_demo_extension: "广东燃料电池演示扩展数据",
+  gd_fc_stack: "广东燃料电池电堆数据",
+  gd_fc_vehicle_info: "广东燃料电池车辆信息数据",
+  gd_fc_vendor_tlv: "广东燃料电池厂家 TLV 扩展",
+  header: "报文头",
+  platform: "平台信息",
+  position: "车辆位置数据",
+  temperature: "可充电储能装置温度数据",
+  vehicle: "整车数据",
+  voltage: "可充电储能装置电压数据",
+};
+
+const fieldNames = {
+  battery_faults: "可充电储能装置故障码",
+  engine_faults: "发动机故障码",
+  general_alarm_flag: "通用报警标志",
+  max_alarm_level: "最高报警等级",
+  motor_faults: "驱动电机故障码",
+  other_faults: "其他故障码",
+  type: "数据单元类型",
+  count: "数量",
+  controller_current_a: "控制器直流母线电流",
+  controller_temperature_c: "控制器温度",
+  controller_voltage_v: "控制器输入电压",
+  motor_temperature_c: "电机温度",
+  serial_no: "驱动电机序号",
+  speed_rpm: "转速",
+  state: "状态",
+  torque_nm: "转矩",
+  engine_status: "发动机状态",
+  fuel_rate: "燃料消耗率",
+  max_temp_c: "最高温度",
+  max_temp_probe_no: "最高温度探针序号",
+  max_temp_subsystem_no: "最高温度子系统号",
+  max_voltage_cell_no: "最高电压单体序号",
+  max_voltage_subsystem_no: "最高电压子系统号",
+  max_voltage_v: "最高电压",
+  min_temp_c: "最低温度",
+  min_temp_probe_no: "最低温度探针序号",
+  min_temp_subsystem_no: "最低温度子系统号",
+  min_voltage_cell_no: "最低电压单体序号",
+  min_voltage_subsystem_no: "最低电压子系统号",
+  min_voltage_v: "最低电压",
+  dc_dc_status: "高压 DC/DC 状态",
+  fuel_cell_current_a: "燃料电池电流",
+  fuel_cell_voltage_v: "燃料电池电压",
+  hydrogen_consumption_kg_per_100km: "氢耗",
+  max_hydrogen_concentration_fraction: "最高氢浓度比例",
+  max_hydrogen_concentration_percent: "最高氢浓度",
+  max_hydrogen_concentration_ppm: "最高氢浓度原始值",
+  max_hydrogen_concentration_probe_id: "最高氢浓度探针编号",
+  max_hydrogen_pressure_mpa: "最高氢压力",
+  max_hydrogen_pressure_probe_id: "最高氢压探针编号",
+  max_hydrogen_temperature_c: "氢系统最高温度",
+  max_hydrogen_temperature_probe_id: "最高氢温探针编号",
+  temperature_probe_count: "温度探针数量",
+  temperature_probe_values_c: "温度探针值列表",
+  status: "状态",
+  subsystem_count: "子系统数量",
+  air_compressor_motor_voltage_v: "空气压缩机电机电压",
+  air_compressor_power_kw: "空气压缩机功率",
+  low_voltage_battery_voltage_v: "低压蓄电池电压",
+  water_pump_voltage_v: "水泵电压",
+  controller_temp_c: "控制器温度",
+  input_current_a: "输入电流",
+  input_voltage_v: "输入电压",
+  output_current_a: "输出电流",
+  output_voltage_v: "输出电压",
+  air_compressor_current_a: "空气压缩机电流",
+  air_compressor_voltage_v: "空气压缩机电压",
+  declared_length: "声明长度",
+  hydrogen_pump_current_a: "氢气循环泵电流",
+  hydrogen_pump_voltage_v: "氢气循环泵电压",
+  stack_temp_c: "电堆温度",
+  air_inlet_pressure_kpa: "空气入口压力",
+  avg_cell_voltage_v: "单体平均电压",
+  cell_count: "单体总数",
+  engine_work_state: "发动机工作状态",
+  frame_cell_voltages_v: "本帧单体电压列表",
+  hydrogen_inlet_pressure_kpa: "氢气入口压力",
+  max_cell_voltage_id: "最高电压单体编号",
+  max_cell_voltage_v: "单体最高电压",
+  min_cell_voltage_id: "最低电压单体编号",
+  min_cell_voltage_v: "单体最低电压",
+  stack_count: "电堆数量",
+  stack_water_outlet_temp_c: "电堆出水温度",
+  collision_alarm: "碰撞报警",
+  hydrogen_mass_kg: "车载氢量",
+  payload_hex: "原始载荷（十六进制）",
+  actual_body_length: "实际报文体长度",
+  body_length: "报文体长度",
+  command: "命令标识",
+  encrypt: "加密方式",
+  response_flag: "应答标志",
+  version: "协议版本",
+  vin: "车辆识别代号",
+  platform_name: "平台名称",
+  latitude: "纬度",
+  longitude: "经度",
+  position_status: "定位状态标志",
+  accelerator_pct: "加速踏板行程",
+  brake_pct: "制动踏板状态",
+  charge_status: "充电状态",
+  gear: "挡位原始值",
+  insulation_kohm: "绝缘电阻",
+  running_mode: "运行模式",
+  soc_percent: "SOC",
+  speed_kmh: "车速",
+  total_current_a: "总电流",
+  total_mileage_km: "累计里程",
+  total_voltage_v: "总电压",
+  vehicle_status: "车辆状态",
+  max_cell_v: "单体最高电压",
+  min_cell_v: "单体最低电压",
+};
+
+const unitBySuffix = {
+  controller_current_a: "A", controller_voltage_v: "V", controller_temperature_c: "℃",
+  motor_temperature_c: "℃", speed_rpm: "rpm", torque_nm: "N·m", fuel_rate: "L/100km",
+  max_temp_c: "℃", min_temp_c: "℃", max_voltage_v: "V", min_voltage_v: "V",
+  fuel_cell_current_a: "A", fuel_cell_voltage_v: "V", hydrogen_consumption_kg_per_100km: "kg/100km",
+  max_hydrogen_concentration_fraction: "比例", max_hydrogen_concentration_percent: "%", max_hydrogen_concentration_ppm: "ppm",
+  max_hydrogen_pressure_mpa: "MPa", max_hydrogen_temperature_c: "℃", temperature_probe_values_c: "℃",
+  air_compressor_motor_voltage_v: "V", air_compressor_power_kw: "kW", low_voltage_battery_voltage_v: "V", water_pump_voltage_v: "V",
+  controller_temp_c: "℃", input_current_a: "A", input_voltage_v: "V", output_current_a: "A", output_voltage_v: "V",
+  air_compressor_current_a: "A", air_compressor_voltage_v: "V", hydrogen_pump_current_a: "A", hydrogen_pump_voltage_v: "V", stack_temp_c: "℃",
+  air_inlet_pressure_kpa: "kPa", avg_cell_voltage_v: "V", frame_cell_voltages_v: "V", hydrogen_inlet_pressure_kpa: "kPa",
+  max_cell_voltage_v: "V", min_cell_voltage_v: "V", stack_water_outlet_temp_c: "℃", hydrogen_mass_kg: "kg",
+  latitude: "°", longitude: "°", accelerator_pct: "%", brake_pct: "%", insulation_kohm: "kΩ", soc_percent: "%",
+  speed_kmh: "km/h", total_current_a: "A", total_mileage_km: "km", total_voltage_v: "V", max_cell_v: "V", min_cell_v: "V",
+};
+
+const valueMappings = {
+  "gb32960.vehicle.vehicle_status": { "1": "启动", "2": "熄火", "3": "其他", "254": "异常", "255": "无效" },
+  "gb32960.vehicle.charge_status": { "1": "停车充电", "2": "行驶充电", "3": "未充电", "4": "充电完成", "254": "异常", "255": "无效" },
+  "gb32960.vehicle.running_mode": { "1": "纯电", "2": "混合动力", "3": "燃料电池", "254": "异常", "255": "无效" },
+  "gb32960.vehicle.dc_dc_status": { "1": "工作", "2": "断开", "254": "异常", "255": "无效" },
+  "gb32960.fuel_cell.dc_dc_status": { "1": "工作", "2": "断开", "254": "异常", "255": "无效" },
+  "gb32960.drive_motor.motors.motor_1.state": { "1": "耗电", "2": "发电", "3": "关闭", "4": "准备", "254": "异常", "255": "无效" },
+  "gb32960.alarm.max_alarm_level": { "0": "无故障", "1": "一级故障", "2": "二级故障", "3": "三级故障" },
+  "gb32960.gd_fc_air_conditioner.status": { "0": "关闭", "1": "启动", "254": "异常", "255": "无效" },
+  "gb32960.gd_fc_vehicle_info.collision_alarm": { "0": "无碰撞报警", "1": "有碰撞报警", "254": "异常", "255": "无效" },
+  "gb32960.position.position_status": {
+    "0": "有效定位 · 北纬 · 东经", "1": "无效定位 · 北纬 · 东经", "2": "有效定位 · 南纬 · 东经", "3": "无效定位 · 南纬 · 东经",
+    "4": "有效定位 · 北纬 · 西经", "5": "无效定位 · 北纬 · 西经", "6": "有效定位 · 南纬 · 西经", "7": "无效定位 · 南纬 · 西经",
+  },
+};
+
+function fieldParts(key) {
+  const parts = key.split(".");
+  const category = parts[1] ?? "";
+  const suffix = parts.at(-1) ?? key;
+  const motorMatch = key.match(/\.motors\.motor_(\d+)\./);
+  const subsystemMatch = key.match(/\.subsystems\.subsystem_(\d+)\./);
+  const scope = motorMatch ? `电机${motorMatch[1]}-` : subsystemMatch ? `子系统${subsystemMatch[1]}-` : "";
+  const categoryName = categoryNames[category] ?? "GB/T 32960 扩展数据";
+  const label = fieldNames[suffix];
+  if (!label) throw new Error(`missing Chinese field mapping for ${key}`);
+  const unit = unitBySuffix[suffix] ?? "";
+  return { category, categoryName, suffix, label: `${categoryName}-${scope}${label}${unit ? `（${unit}）` : ""}`, unit };
+}
+
+function displayValue(key, value) {
+  if (value == null || value === "") return null;
+  const raw = String(value);
+  const mapped = valueMappings[key]?.[raw];
+  if (mapped) return `${mapped}（${raw}）`;
+  if (/^0x[0-9a-f]+$/i.test(raw)) return `十六进制 ${raw}`;
+  if (/^-?\d+(?:\.\d+)?$/.test(raw) && !key.endsWith(".vin")) return Number(raw);
+  return raw;
+}
+
+function mappingText(key) {
+  const mapping = valueMappings[key];
+  return mapping ? Object.entries(mapping).map(([value, label]) => `${value}=${label}`).join("；") : "";
+}
+
+function columnName(index) {
+  let value = index + 1;
+  let out = "";
+  while (value > 0) {
+    const remainder = (value - 1) % 26;
+    out = String.fromCharCode(65 + remainder) + out;
+    value = Math.floor((value - 1) / 26);
+  }
+  return out;
+}
+
+const fieldKeys = data.fieldKeys;
+const mappedFields = fieldKeys.map((key) => ({ key, ...fieldParts(key) }));
+const metadata = [
+  ["序号", (item, index) => index + 1],
+  ["车牌", () => data.query.plate],
+  ["VIN", (item) => item.vin],
+  ["协议", (item) => item.protocol],
+  ["设备时间（北京时间）", (item) => item.event_time],
+  ["接收时间（北京时间）", (item) => item.received_at],
+  ["存储时间（北京时间）", (item) => item.ts],
+  ["消息ID", (item) => item.message_id],
+  ["消息ID（十六进制）", (item) => item.message_id_hex ? `十六进制 ${item.message_id_hex}` : null],
+  ["帧ID", (item) => item.frame_id],
+  ["事件ID", (item) => item.event_id],
+  ["解析状态", (item) => item.parse_status],
+  ["解析错误", (item) => item.parse_error ?? null],
+  ["来源端点", (item) => item.source_endpoint],
+  ["原始报文字节数", (item) => item.raw_size_bytes],
+  ["车辆标识", (item) => item.vehicle_key],
+  ["手机号", (item) => item.phone ?? null],
+  ["设备ID", (item) => item.device_id ?? null],
+  ["原始文本", (item) => item.raw_text ?? null],
+  ["原始报文（十六进制）", (item) => item.raw_hex ?? null],
+];
+
+const workbook = Workbook.create();
+const summary = workbook.worksheets.add("导出说明");
+const detail = workbook.worksheets.add("完整数据");
+const mapping = workbook.worksheets.add("字段映射");
+
+summary.showGridLines = false;
+summary.getRange("A1:F1").merge();
+summary.getRange("A1").values = [[`${data.query.plate} · ${exportDate} · GB/T 32960 原始数据导出`]];
+summary.getRange("A1:F1").format = { fill: "#163A5F", font: { bold: true, color: "#FFFFFF", size: 16 }, verticalAlignment: "center" };
+summary.getRange("A1:F1").format.rowHeight = 32;
+summary.getRange("A3:B15").values = [
+  ["车牌", data.query.plate],
+  ["VIN", data.query.vin],
+  ["协议", data.query.protocol],
+  ["查询日期", `${exportDate}（北京时间）`],
+  ["查询时间窗", `${data.query.dateFrom} 至 ${data.query.dateTo}`],
+  ["接口统计总帧数", data.verification.apiTotal],
+  ["实际导出帧数", data.verification.fetchedRows],
+  ["唯一帧ID数", data.verification.uniqueFrameIds],
+  ["唯一事件ID数", data.verification.uniqueEventIds],
+  ["首条存储时间", data.verification.earliestTs],
+  ["末条存储时间", data.verification.latestTs],
+  ["解析字段数", data.verification.parsedFieldCount],
+  ["消息类型统计", Object.entries(data.verification.messageCounts).map(([key, count]) => `${key}: ${count}帧`).join("；")],
+];
+summary.getRange("A3:A15").format = { fill: "#DCE8F2", font: { bold: true, color: "#163A5F" } };
+summary.getRange("A3:B15").format.borders = { preset: "inside", style: "thin", color: "#C8D4E0" };
+summary.getRange("A17:F17").merge();
+summary.getRange("A17").values = [["口径说明"]];
+summary.getRange("A17:F17").format = { fill: "#2B6F91", font: { bold: true, color: "#FFFFFF" } };
+summary.getRange("A18:F22").merge(true);
+summary.getRange("A18:F22").values = [
+  [`1. 数据源为生产实时 API 的 GB32960 原始帧历史；导出保留原始报文十六进制、帧/事件标识、解析状态及全部 ${data.verification.parsedFieldCount} 个已出现的解析字段。`],
+  ["2. 完整数据工作表使用中文字段名；字段映射工作表保留原始字段键、单位及状态值映射，便于审计和程序回溯。"],
+  ["3. 状态类字段显示为“中文含义（协议值）”；普通测量值保持数值，列表/位图/十六进制载荷保持原始文本。"],
+  [`4. 查询边界为北京时间 ${data.query.dateFrom} 至 ${data.query.dateTo}；该车辆实际存储时间覆盖 ${data.verification.earliestTs} 至 ${data.verification.latestTs}。`],
+  ["5. 中文术语参考：项目 GB/T 32960 字段展示基准及【字段】32960+广东燃料电池协议.json（SHA-256: 0f0847b86cc692f2130255babbee37e6cb3cf36d717b18d6698164289f66eb82）。"],
+];
+summary.getRange("A18:F22").format = { wrapText: true, verticalAlignment: "top", font: { color: "#334155", size: 10 } };
+summary.getRange("A18:F22").format.rowHeight = 34;
+summary.getRange("A:A").format.columnWidth = 22;
+summary.getRange("B:F").format.columnWidth = 18;
+summary.getRange("B:B").format.columnWidth = 78;
+
+const detailHeaders = [...metadata.map(([label]) => label), ...mappedFields.map((field) => field.label)];
+const detailRows = data.items.map((item, index) => [
+  ...metadata.map(([, getter]) => getter(item, index)),
+  ...mappedFields.map(({ key }) => displayValue(key, item.parsed_fields?.[key])),
+]);
+const detailMatrix = [detailHeaders, ...detailRows];
+const detailEndColumn = columnName(detailHeaders.length - 1);
+detail.getRangeByIndexes(0, 0, detailMatrix.length, detailHeaders.length).values = detailMatrix;
+detail.showGridLines = false;
+detail.freezePanes.freezeRows(1);
+detail.freezePanes.freezeColumns(3);
+const dataTable = detail.tables.add(`A1:${detailEndColumn}${detailMatrix.length}`, true, "GB32960DataTable");
+dataTable.style = "TableStyleMedium2";
+dataTable.showFilterButton = true;
+dataTable.showBandedColumns = false;
+detail.getRangeByIndexes(0, 0, 1, detailHeaders.length).format = {
+  fill: "#1F4E78", font: { bold: true, color: "#FFFFFF", size: 9 }, wrapText: true,
+  horizontalAlignment: "center", verticalAlignment: "center",
+};
+detail.getRangeByIndexes(0, 0, 1, detailHeaders.length).format.rowHeight = 48;
+detail.getRangeByIndexes(1, 0, detailRows.length, detailHeaders.length).format.font = { size: 9, color: "#1F2937" };
+detail.getRangeByIndexes(0, 0, detailMatrix.length, 1).format.columnWidth = 8;
+detail.getRangeByIndexes(0, 1, detailMatrix.length, 1).format.columnWidth = 13;
+detail.getRangeByIndexes(0, 2, detailMatrix.length, 1).format.columnWidth = 22;
+for (const col of [3, 7, 8, 11, 14]) detail.getRangeByIndexes(0, col, detailMatrix.length, 1).format.columnWidth = 14;
+for (const col of [4, 5, 6]) detail.getRangeByIndexes(0, col, detailMatrix.length, 1).format.columnWidth = 21;
+for (const col of [9, 10]) detail.getRangeByIndexes(0, col, detailMatrix.length, 1).format.columnWidth = 36;
+for (const col of [12, 13, 15, 16, 17]) detail.getRangeByIndexes(0, col, detailMatrix.length, 1).format.columnWidth = 20;
+detail.getRangeByIndexes(0, 18, detailMatrix.length, 1).format.columnWidth = 28;
+detail.getRangeByIndexes(0, 19, detailMatrix.length, 1).format.columnWidth = 44;
+for (let col = metadata.length; col < detailHeaders.length; col += 1) {
+  const key = mappedFields[col - metadata.length].key;
+  const wide = key.includes("voltages_v") || key.endsWith("faults") || key.endsWith("payload_hex");
+  detail.getRangeByIndexes(0, col, detailMatrix.length, 1).format.columnWidth = wide ? 38 : 18;
+}
+detail.getRangeByIndexes(1, 0, detailRows.length, 1).format.numberFormat = "0";
+detail.getRangeByIndexes(1, 7, detailRows.length, 1).format.numberFormat = "0";
+detail.getRangeByIndexes(1, 14, detailRows.length, 1).format.numberFormat = "0";
+
+mapping.showGridLines = false;
+mapping.freezePanes.freezeRows(1);
+const mappingHeaders = ["序号", "中文字段名", "原始字段键", "数据类别", "单位", "状态值映射", "说明"];
+const mappingRows = mappedFields.map((field, index) => [
+  index + 1,
+  field.label,
+  field.key,
+  field.categoryName,
+  field.unit,
+  mappingText(field.key),
+  valueMappings[field.key] ? "完整数据中显示中文含义并保留括号内协议值。" : "值按协议解析结果原样导出；数值字段保持数值类型。",
+]);
+mapping.getRangeByIndexes(0, 0, mappingRows.length + 1, mappingHeaders.length).values = [mappingHeaders, ...mappingRows];
+const mappingTable = mapping.tables.add(`A1:G${mappingRows.length + 1}`, true, "GB32960FieldMappingTable");
+mappingTable.style = "TableStyleMedium2";
+mapping.getRange("A1:G1").format = { fill: "#1F4E78", font: { bold: true, color: "#FFFFFF" }, wrapText: true, horizontalAlignment: "center" };
+mapping.getRange("A1:G1").format.rowHeight = 30;
+mapping.getRange("A:A").format.columnWidth = 8;
+mapping.getRange("B:B").format.columnWidth = 42;
+mapping.getRange("C:C").format.columnWidth = 58;
+mapping.getRange("D:D").format.columnWidth = 30;
+mapping.getRange("E:E").format.columnWidth = 12;
+mapping.getRange("F:F").format.columnWidth = 68;
+mapping.getRange("G:G").format.columnWidth = 48;
+mapping.getRange(`B2:G${mappingRows.length + 1}`).format.wrapText = true;
+
+await fs.mkdir(outputDir, { recursive: true });
+
+const summaryInspect = await workbook.inspect({ kind: "table", range: "导出说明!A1:F22", include: "values,formulas", tableMaxRows: 24, tableMaxCols: 8 });
+const detailInspect = await workbook.inspect({ kind: "table", range: "完整数据!A1:Z8", include: "values,formulas", tableMaxRows: 8, tableMaxCols: 26 });
+const mappingInspect = await workbook.inspect({ kind: "table", range: "字段映射!A1:G16", include: "values,formulas", tableMaxRows: 16, tableMaxCols: 8 });
+const errors = await workbook.inspect({ kind: "match", searchTerm: "#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A", options: { useRegex: true, maxResults: 300 }, summary: "final formula error scan" });
+await fs.writeFile(path.join(taskDir, "summary-inspect.ndjson"), summaryInspect.ndjson, "utf8");
+await fs.writeFile(path.join(taskDir, "detail-inspect.ndjson"), detailInspect.ndjson, "utf8");
+await fs.writeFile(path.join(taskDir, "mapping-inspect.ndjson"), mappingInspect.ndjson, "utf8");
+await fs.writeFile(path.join(taskDir, "formula-errors.ndjson"), errors.ndjson, "utf8");
+
+for (const [sheetName, range, filename] of [
+  ["导出说明", "A1:F22", "preview-summary.png"],
+  ["完整数据", "A1:T18", "preview-detail.png"],
+  ["字段映射", "A1:G28", "preview-mapping.png"],
+]) {
+  const preview = await workbook.render({ sheetName, range, scale: 1.25, format: "png" });
+  await fs.writeFile(path.join(taskDir, filename), new Uint8Array(await preview.arrayBuffer()));
+}
+
+const xlsx = await SpreadsheetFile.exportXlsx(workbook);
+await xlsx.save(outputPath);
+console.log(JSON.stringify({ outputPath, sheets: ["导出说明", "完整数据", "字段映射"], rows: detailRows.length, parsedFields: mappedFields.length, columns: detailHeaders.length }, null, 2));

tmp/gb32960-export-20260817/fetch_data.mjs

@@ -0,0 +1,77 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+
+const baseUrl = process.env.GB32960_BASE_URL || "http://115.29.187.205:20200";
+const vin = process.env.GB32960_VIN || "LB9A32A24R0LS1720";
+const plate = process.env.GB32960_PLATE || "粤AGP4377";
+const exportDate = process.env.GB32960_DATE || "2026-08-17";
+const dateFrom = `${exportDate} 00:00:00`;
+const dateTo = `${exportDate} 23:59:59`;
+const limit = 500;
+const outputPath = process.env.GB32960_DATA_PATH || new URL("./raw-frames.json", import.meta.url).pathname;
+
+async function fetchPage(offset, includeTotal = false) {
+  const params = new URLSearchParams({
+    protocol: "GB32960",
+    vin,
+    dateFrom,
+    dateTo,
+    orderBy: "eventTime",
+    limit: String(limit),
+    offset: String(offset),
+    includeFields: "true",
+    includePayload: "true",
+    includeTotal: includeTotal ? "true" : "false",
+  });
+  const response = await fetch(`${baseUrl}/api/history/raw-frames?${params}`, {
+    headers: { "Accept-Encoding": "gzip" },
+    signal: AbortSignal.timeout(60000),
+  });
+  if (!response.ok) throw new Error(`HTTP ${response.status}: ${await response.text()}`);
+  return response.json();
+}
+
+const first = await fetchPage(0, true);
+const total = Number(first.total ?? 0);
+const offsets = [];
+for (let offset = limit; offset < total; offset += limit) offsets.push(offset);
+const remaining = await Promise.all(offsets.map((offset) => fetchPage(offset)));
+const items = [...(first.items ?? []), ...remaining.flatMap((page) => page.items ?? [])];
+
+const frameIds = new Set(items.map((item) => item.frame_id));
+const eventIds = new Set(items.map((item) => item.event_id));
+const fieldKeys = [...new Set(items.flatMap((item) => Object.keys(item.parsed_fields ?? {})))].sort();
+const messageCounts = Object.fromEntries(
+  [...items.reduce((map, item) => map.set(item.message_id_hex, (map.get(item.message_id_hex) ?? 0) + 1), new Map())]
+    .sort(([a], [b]) => a.localeCompare(b)),
+);
+
+if (items.length !== total) throw new Error(`row count mismatch: fetched=${items.length} total=${total}`);
+if (frameIds.size !== items.length) throw new Error(`duplicate frame_id: unique=${frameIds.size} rows=${items.length}`);
+if (eventIds.size !== items.length) throw new Error(`duplicate event_id: unique=${eventIds.size} rows=${items.length}`);
+for (const item of items) {
+  if (item.protocol !== "GB32960" || item.vin !== vin) throw new Error(`scope mismatch at ${item.frame_id}`);
+  if (item.ts < dateFrom || item.ts > dateTo) throw new Error(`time out of range at ${item.frame_id}: ${item.ts}`);
+}
+
+const output = {
+  exportedAt: new Date().toISOString(),
+  source: `${baseUrl}/api/history/raw-frames`,
+  query: { plate, vin, protocol: "GB32960", dateFrom, dateTo, orderBy: "eventTime" },
+  verification: {
+    apiTotal: total,
+    fetchedRows: items.length,
+    uniqueFrameIds: frameIds.size,
+    uniqueEventIds: eventIds.size,
+    earliestTs: items.reduce((min, item) => !min || item.ts < min ? item.ts : min, ""),
+    latestTs: items.reduce((max, item) => !max || item.ts > max ? item.ts : max, ""),
+    parsedFieldCount: fieldKeys.length,
+    messageCounts,
+  },
+  fieldKeys,
+  items,
+};
+
+await fs.mkdir(path.dirname(outputPath), { recursive: true });
+await fs.writeFile(outputPath, JSON.stringify(output), "utf8");
+console.log(JSON.stringify({ outputPath, ...output.verification }, null, 2));

tmp/gb32960-export-20260817/verify_final.mjs

@@ -0,0 +1,15 @@
+import fs from "node:fs/promises";
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const workbookPath = process.env.GB32960_WORKBOOK_PATH || "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/gb32960-export-20260817-agp4377/粤AGP4377_2026-08-17_GB32960完整数据_中文字段.xlsx";
+const lastDataRow = Number(process.env.GB32960_LAST_ROW || "1233");
+const workbook = await SpreadsheetFile.importXlsx(await FileBlob.load(workbookPath));
+const sheets = await workbook.inspect({ kind: "sheet", include: "id,name", maxChars: 3000 });
+const summary = await workbook.inspect({ kind: "table", range: "导出说明!A3:B15", include: "values,formulas", tableMaxRows: 20, tableMaxCols: 3 });
+const detail = await workbook.inspect({ kind: "table", range: "完整数据!A1:T6", include: "values,formulas", tableMaxRows: 6, tableMaxCols: 20 });
+const tail = await workbook.inspect({ kind: "table", range: `完整数据!A${lastDataRow - 4}:F${lastDataRow}`, include: "values,formulas", tableMaxRows: 6, tableMaxCols: 6 });
+const mapping = await workbook.inspect({ kind: "table", range: "字段映射!A1:G10", include: "values,formulas", tableMaxRows: 10, tableMaxCols: 7 });
+const errors = await workbook.inspect({ kind: "match", searchTerm: "#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A", options: { useRegex: true, maxResults: 300 }, summary: "reopened workbook formula error scan" });
+const output = { sheets: sheets.ndjson, summary: summary.ndjson, detail: detail.ndjson, tail: tail.ndjson, mapping: mapping.ndjson, errors: errors.ndjson };
+await fs.writeFile(new URL("./reopen-verification.json", import.meta.url), JSON.stringify(output, null, 2), "utf8");
+console.log(JSON.stringify({ workbookPath, sizeBytes: (await fs.stat(workbookPath)).size, output }, null, 2));

tmp/gps-mileage-import-019fa1ac-db39-7933-bb0e-30dd63cc25bd/inspect_sources.mjs

@@ -0,0 +1,94 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const sourceDir =
+  "/Users/lingniu/Library/Mobile Documents/com~apple~CloudDocs/rsync/2026/07/27";
+const workDir =
+  "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/tmp/gps-mileage-import-019fa1ac-db39-7933-bb0e-30dd63cc25bd";
+
+const names = (await fs.readdir(sourceDir))
+  .filter((name) => name.endsWith(".xlsx"))
+  .sort((a, b) => a.localeCompare(b, "zh-CN"));
+
+const manifest = [];
+for (const name of names) {
+  const filePath = path.join(sourceDir, name);
+  const input = await FileBlob.load(filePath);
+  const workbook = await SpreadsheetFile.importXlsx(input);
+  const sheet = workbook.worksheets.getItemAt(0);
+  const usedRange = sheet.getUsedRange(true);
+  const values = usedRange?.values ?? [];
+  const rowCount = values.length;
+  const colCount = values.reduce((max, row) => Math.max(max, row.length), 0);
+  const topRows = values.slice(0, 8).map((row) =>
+    row.slice(0, Math.min(colCount, 40)).map((value) => {
+      if (value instanceof Date) return value.toISOString();
+      return value ?? null;
+    }),
+  );
+  const preview = await workbook.render({
+    sheetName: sheet.name,
+    range: `A1:${columnName(Math.min(Math.max(colCount, 1), 40))}${Math.min(
+      Math.max(rowCount, 1),
+      15,
+    )}`,
+    scale: 1,
+    format: "png",
+  });
+  const previewName = `${String(manifest.length + 1).padStart(2, "0")}-${safeName(
+    name,
+  )}.png`;
+  await fs.writeFile(
+    path.join(workDir, previewName),
+    new Uint8Array(await preview.arrayBuffer()),
+  );
+  manifest.push({
+    name,
+    sheet: sheet.name,
+    rowCount,
+    colCount,
+    firstRow: topRows[0] ?? [],
+    topRows,
+    preview: previewName,
+  });
+}
+
+await fs.writeFile(
+  path.join(workDir, "source-manifest.json"),
+  `${JSON.stringify(manifest, null, 2)}\n`,
+  "utf8",
+);
+
+console.log(
+  JSON.stringify(
+    manifest.map(({ name, sheet, rowCount, colCount, firstRow, preview }) => ({
+      name,
+      sheet,
+      rowCount,
+      colCount,
+      firstRow,
+      preview,
+    })),
+    null,
+    2,
+  ),
+);
+
+function safeName(name) {
+  return name
+    .replace(/\.xlsx$/i, "")
+    .replace(/[^\p{L}\p{N}._-]+/gu, "_")
+    .slice(0, 100);
+}
+
+function columnName(index) {
+  let value = index;
+  let result = "";
+  while (value > 0) {
+    value -= 1;
+    result = String.fromCharCode(65 + (value % 26)) + result;
+    value = Math.floor(value / 26);
+  }
+  return result || "A";
+}

tmp/gps-mileage-import-019fa1ac-db39-7933-bb0e-30dd63cc25bd/normalize_compare.mjs

@@ -0,0 +1,378 @@
+import fs from "node:fs/promises";
+import fsSync from "node:fs";
+import path from "node:path";
+import readline from "node:readline";
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const sourceDir =
+  "/Users/lingniu/Library/Mobile Documents/com~apple~CloudDocs/rsync/2026/07/27";
+const workDir =
+  "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/tmp/gps-mileage-import-019fa1ac-db39-7933-bb0e-30dd63cc25bd";
+const priorCsv =
+  "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/g7-mileage-history-20260724/merged/G7车辆每日里程_20220101-20260720.csv";
+const normalizedCsv = path.join(
+  workDir,
+  "G7_GPS车辆每日里程_20251231-20260630.csv",
+);
+const combinedCsv = path.join(
+  workDir,
+  "G7_GPS车辆每日里程_合并优先季度统计_20251231-20260630.csv",
+);
+const statisticCsv = path.join(
+  workDir,
+  "G7_GPS季度统计每日里程_20260101-20260630.csv",
+);
+
+const dailyNames = [
+  "智能管车_车辆里程日报-091555330.xlsx",
+  "智能管车_车辆里程日报-090938059.xlsx",
+  "智能管车_车辆里程日报-091002580.xlsx",
+  "智能管车_车辆里程日报-091020404.xlsx",
+  "智能管车_车辆里程日报-091030619.xlsx",
+  "智能管车_车辆里程日报-091046118.xlsx",
+  "智能管车_车辆里程日报-091058580.xlsx",
+];
+const statisticNames = [
+  "里程统计[天][2026-01-01至2026-03-31] (1).xlsx",
+  "里程统计[天][2026-01-01至2026-03-31].xlsx",
+  "里程统计[天][2026-04-01至2026-06-30] (1).xlsx",
+  "里程统计[天][2026-04-01至2026-06-30].xlsx",
+];
+
+const rows = [];
+const newByKey = new Map();
+const dailyFiles = [];
+for (const name of dailyNames) {
+  const values = await readFirstSheetValues(path.join(sourceDir, name));
+  const headers = values[0] ?? [];
+  const runtimeIndex = headers.indexOf("运行时长");
+  assert(runtimeIndex > 3, `${name} 缺少运行时长列`);
+  const dateHeaders = headers.slice(3, runtimeIndex);
+  const dates = dateHeaders.map((header) => parseHeaderDate(header));
+  const seenPlates = new Set();
+  let statedTotalKm = 0;
+  let calculatedTotalKm = 0;
+  let mismatchRows = 0;
+  for (const row of values.slice(1)) {
+    const plate = cleanText(row?.[0]);
+    if (!plate) continue;
+    assert(!seenPlates.has(plate), `${name} 存在重复车牌 ${plate}`);
+    seenPlates.add(plate);
+    const stated = numberValue(row?.[2], 10_000_000);
+    const dailyValues = row
+      .slice(3, runtimeIndex)
+      .map((value) => numberValue(value));
+    const calculated = dailyValues.reduce((sum, value) => sum + value, 0);
+    statedTotalKm += stated;
+    calculatedTotalKm += calculated;
+    if (Math.abs(stated - calculated) > 0.011) mismatchRows += 1;
+    for (let index = 0; index < dates.length; index += 1) {
+      const date = dates[index];
+      const mileage = dailyValues[index];
+      const key = `${plate}|${date}`;
+      assert(!newByKey.has(key), `日报重复车辆日 ${key}`);
+      const normalized = { plate, date, mileage };
+      newByKey.set(key, normalized);
+      rows.push(normalized);
+    }
+  }
+  dailyFiles.push({
+    name,
+    vehicleCount: seenPlates.size,
+    dateFrom: dates[0],
+    dateTo: dates.at(-1),
+    dateCount: dates.length,
+    rowCount: seenPlates.size * dates.length,
+    statedTotalKm: round(statedTotalKm),
+    calculatedTotalKm: round(calculatedTotalKm),
+    mismatchRows,
+  });
+}
+
+rows.sort(
+  (a, b) =>
+    a.plate.localeCompare(b.plate, "zh-CN") || a.date.localeCompare(b.date),
+);
+await fs.writeFile(
+  normalizedCsv,
+  `\uFEFFplate,date,daily_mileage_km\n${rows
+    .map((row) => `${row.plate},${row.date},${formatNumber(row.mileage)}`)
+    .join("\n")}\n`,
+  "utf8",
+);
+
+const statisticByKey = new Map();
+const statisticFiles = [];
+for (const name of statisticNames) {
+  const values = await readFirstSheetValues(path.join(sourceDir, name));
+  const headers = (values[1] ?? []).map(cleanText);
+  const plateIndex = headers.indexOf("车牌号码");
+  const methodIndex = headers.indexOf("里程计算方式");
+  const dateIndex = headers.indexOf("日期");
+  const mileageIndex = headers.indexOf("里程（km）");
+  assert(
+    [plateIndex, methodIndex, dateIndex, mileageIndex].every((index) => index >= 0),
+    `${name} 表头不完整`,
+  );
+  const fileKeys = new Set();
+  const methods = new Set();
+  let totalKm = 0;
+  for (const row of values.slice(2)) {
+    const plate = cleanText(row?.[plateIndex]);
+    const date = isoDate(row?.[dateIndex]);
+    if (!plate || !date) continue;
+    const method = cleanText(row?.[methodIndex]);
+    const mileage = numberValue(row?.[mileageIndex]);
+    const key = `${plate}|${date}`;
+    assert(!fileKeys.has(key), `${name} 文件内重复车辆日 ${key}`);
+    assert(!statisticByKey.has(key), `季度统计跨文件重复车辆日 ${key}`);
+    fileKeys.add(key);
+    statisticByKey.set(key, { plate, date, mileage, method, name });
+    methods.add(method);
+    totalKm += mileage;
+  }
+  statisticFiles.push({
+    name,
+    rowCount: fileKeys.size,
+    vehicleCount: new Set([...fileKeys].map((key) => key.split("|")[0])).size,
+    dateCount: new Set([...fileKeys].map((key) => key.split("|")[1])).size,
+    methods: [...methods].sort(),
+    totalKm: round(totalKm),
+  });
+}
+
+let statisticMatched = 0;
+let statisticMissingInDaily = 0;
+let statisticChanged = 0;
+let statisticAbsoluteDifferenceKm = 0;
+let statisticMaxDifferenceKm = 0;
+const statisticExamples = [];
+for (const [key, statistic] of statisticByKey) {
+  const daily = newByKey.get(key);
+  if (!daily) {
+    statisticMissingInDaily += 1;
+    continue;
+  }
+  statisticMatched += 1;
+  const difference = daily.mileage - statistic.mileage;
+  const absolute = Math.abs(difference);
+  statisticAbsoluteDifferenceKm += absolute;
+  statisticMaxDifferenceKm = Math.max(statisticMaxDifferenceKm, absolute);
+  if (absolute > 0.011) {
+    statisticChanged += 1;
+    if (statisticExamples.length < 20) {
+      statisticExamples.push({
+        key,
+        dailyKm: daily.mileage,
+        statisticKm: statistic.mileage,
+        differenceKm: round(difference),
+      });
+    }
+  }
+}
+const statisticRows = [...statisticByKey.values()].sort(
+  (a, b) =>
+    a.plate.localeCompare(b.plate, "zh-CN") || a.date.localeCompare(b.date),
+);
+await fs.writeFile(
+  statisticCsv,
+  `\uFEFFplate,date,daily_mileage_km\n${statisticRows
+    .map((row) => `${row.plate},${row.date},${formatNumber(row.mileage)}`)
+    .join("\n")}\n`,
+  "utf8",
+);
+
+const combinedByKey = new Map(newByKey);
+for (const [key, statistic] of statisticByKey) {
+  combinedByKey.set(key, {
+    plate: statistic.plate,
+    date: statistic.date,
+    mileage: statistic.mileage,
+  });
+}
+const combinedRows = [...combinedByKey.values()].sort(
+  (a, b) =>
+    a.plate.localeCompare(b.plate, "zh-CN") || a.date.localeCompare(b.date),
+);
+await fs.writeFile(
+  combinedCsv,
+  `\uFEFFplate,date,daily_mileage_km\n${combinedRows
+    .map((row) => `${row.plate},${row.date},${formatNumber(row.mileage)}`)
+    .join("\n")}\n`,
+  "utf8",
+);
+
+const priorByKey = await loadPriorRange(
+  priorCsv,
+  "2025-12-31",
+  "2026-06-30",
+);
+let priorUnchanged = 0;
+let priorChanged = 0;
+let priorMissing = 0;
+let priorExtra = 0;
+let priorTotalDifferenceKm = 0;
+let priorMaxDifferenceKm = 0;
+const priorExamples = [];
+for (const [key, row] of newByKey) {
+  const prior = priorByKey.get(key);
+  if (!prior) {
+    priorMissing += 1;
+    continue;
+  }
+  const difference = row.mileage - prior.mileage;
+  const absolute = Math.abs(difference);
+  priorTotalDifferenceKm += difference;
+  priorMaxDifferenceKm = Math.max(priorMaxDifferenceKm, absolute);
+  if (absolute <= 0.0005) {
+    priorUnchanged += 1;
+  } else {
+    priorChanged += 1;
+    if (priorExamples.length < 20) {
+      priorExamples.push({
+        key,
+        newKm: row.mileage,
+        priorKm: prior.mileage,
+        differenceKm: round(difference),
+      });
+    }
+  }
+}
+for (const key of priorByKey.keys()) {
+  if (!newByKey.has(key)) priorExtra += 1;
+}
+
+const result = {
+  normalizedCsv,
+  combinedCsv,
+  statisticCsv,
+  source: {
+    rowCount: rows.length,
+    vehicleCount: new Set(rows.map((row) => row.plate)).size,
+    dateCount: new Set(rows.map((row) => row.date)).size,
+    dateFrom: rows.reduce(
+      (min, row) => (!min || row.date < min ? row.date : min),
+      "",
+    ),
+    dateTo: rows.reduce((max, row) => (row.date > max ? row.date : max), ""),
+    positiveRows: rows.filter((row) => row.mileage > 0).length,
+    zeroRows: rows.filter((row) => row.mileage === 0).length,
+    totalKm: round(rows.reduce((sum, row) => sum + row.mileage, 0)),
+    files: dailyFiles,
+  },
+  quarterlyReconciliation: {
+    rowCount: statisticByKey.size,
+    matchedRows: statisticMatched,
+    missingInDailyRows: statisticMissingInDaily,
+    changedRowsOver0011Km: statisticChanged,
+    absoluteDifferenceKm: round(statisticAbsoluteDifferenceKm),
+    maxDifferenceKm: round(statisticMaxDifferenceKm),
+    examples: statisticExamples,
+    files: statisticFiles,
+  },
+  combinedImport: {
+    rowCount: combinedRows.length,
+    vehicleCount: new Set(combinedRows.map((row) => row.plate)).size,
+    dateCount: new Set(combinedRows.map((row) => row.date)).size,
+    dateFrom: combinedRows.reduce(
+      (min, row) => (!min || row.date < min ? row.date : min),
+      "",
+    ),
+    dateTo: combinedRows.reduce(
+      (max, row) => (row.date > max ? row.date : max),
+      "",
+    ),
+    positiveRows: combinedRows.filter((row) => row.mileage > 0).length,
+    zeroRows: combinedRows.filter((row) => row.mileage === 0).length,
+    totalKm: round(
+      combinedRows.reduce((sum, row) => sum + row.mileage, 0),
+    ),
+    precedence:
+      "季度里程统计（明确标注终端里程/经纬度）优先；无季度记录时使用车辆里程日报",
+  },
+  priorImportComparison: {
+    priorRangeRows: priorByKey.size,
+    unchangedRows: priorUnchanged,
+    changedRows: priorChanged,
+    missingInPriorRows: priorMissing,
+    extraPriorRows: priorExtra,
+    totalDifferenceKm: round(priorTotalDifferenceKm),
+    maxDifferenceKm: round(priorMaxDifferenceKm),
+    examples: priorExamples,
+  },
+};
+
+await fs.writeFile(
+  path.join(workDir, "normalization-manifest.json"),
+  `${JSON.stringify(result, null, 2)}\n`,
+  "utf8",
+);
+console.log(JSON.stringify(result, null, 2));
+
+async function readFirstSheetValues(file) {
+  const input = await FileBlob.load(file);
+  const workbook = await SpreadsheetFile.importXlsx(input);
+  return workbook.worksheets.getItemAt(0).getUsedRange(true)?.values ?? [];
+}
+
+async function loadPriorRange(file, dateFrom, dateTo) {
+  const result = new Map();
+  const stream = fsSync.createReadStream(file, { encoding: "utf8" });
+  const lines = readline.createInterface({ input: stream, crlfDelay: Infinity });
+  let first = true;
+  for await (const line of lines) {
+    if (first) {
+      first = false;
+      continue;
+    }
+    if (!line) continue;
+    const [plate, date, rawMileage] = line.split(",");
+    if (date < dateFrom || date > dateTo) continue;
+    result.set(`${plate}|${date}`, {
+      plate,
+      date,
+      mileage: numberValue(rawMileage),
+    });
+  }
+  return result;
+}
+
+function parseHeaderDate(value) {
+  const text = cleanText(value);
+  const match = text.match(/^(\d{2})月(\d{2})日$/);
+  assert(match, `无法解析日报日期表头 ${text}`);
+  const month = Number(match[1]);
+  const year = month === 12 ? 2025 : 2026;
+  return `${year}-${match[1]}-${match[2]}`;
+}
+
+function isoDate(value) {
+  if (value instanceof Date) return value.toISOString().slice(0, 10);
+  const text = cleanText(value);
+  const match = text.match(/^(\d{4})-(\d{2})-(\d{2})/);
+  return match ? `${match[1]}-${match[2]}-${match[3]}` : "";
+}
+
+function cleanText(value) {
+  return String(value ?? "").trim();
+}
+
+function numberValue(value, max = 2500) {
+  if (value === null || value === undefined || value === "") return 0;
+  const number = Number(String(value).replace(/,/g, ""));
+  assert(Number.isFinite(number) && number >= 0 && number <= max, `非法里程 ${value}`);
+  return number;
+}
+
+function formatNumber(value) {
+  if (Number.isInteger(value)) return String(value);
+  return String(Number(value.toFixed(3)));
+}
+
+function round(value) {
+  return Math.round((value + Number.EPSILON) * 1000) / 1000;
+}
+
+function assert(condition, message) {
+  if (!condition) throw new Error(message);
+}

tmp/hydrogen-audit-100-real/assess_candidates.mjs

@@ -0,0 +1,40 @@
+import fs from 'node:fs/promises';
+
+const base = 'http://115.29.187.205:20200';
+const date = '2026-08-25';
+const metrics = JSON.parse(await fs.readFile(new URL('./daily_metrics.json', import.meta.url), 'utf8'));
+const candidates = metrics.items
+  .filter(x => String(x.platform_name || '').startsWith('现代') && Number(x.daily_mileage_km || 0) >= 10)
+  .sort((a, b) => Number(b.daily_mileage_km) - Number(a.daily_mileage_km));
+
+async function one(x) {
+  const q = new URLSearchParams({
+    protocol: 'GB32960', vin: x.vin,
+    dateFrom: `${date} 00:00:00`, dateTo: `${date} 23:59:59`,
+    orderBy: 'eventTime', limit: '1', offset: '0', includeFields: 'true',
+    includePayload: 'false', includeTotal: 'true'
+  });
+  const res = await fetch(`${base}/api/history/raw-frames?${q}`);
+  if (!res.ok) throw new Error(`${x.vin}: ${res.status}`);
+  const body = await res.json();
+  const f = body.items?.[0]?.parsed_fields || {};
+  const required = [
+    'gb32960.fuel_cell.max_hydrogen_pressure_mpa',
+    'gb32960.fuel_cell.max_hydrogen_temperature_c',
+    'gb32960.vehicle.soc_percent',
+    'gb32960.vehicle.total_mileage_km',
+    'gb32960.vehicle.vehicle_status',
+    'gb32960.vehicle.charge_status'
+  ];
+  return {...x, raw_total: Number(body.total || 0), first_has: required.filter(k => f[k] != null).length};
+}
+
+const out = [];
+for (let i = 0; i < candidates.length; i += 12) {
+  const batch = candidates.slice(i, i + 12);
+  out.push(...await Promise.all(batch.map(one)));
+  process.stderr.write(`checked ${Math.min(i + 12, candidates.length)}\n`);
+}
+await fs.writeFile(new URL('./candidate_assessment.json', import.meta.url), JSON.stringify(out, null, 2));
+const totals = out.map(x => x.raw_total).sort((a,b)=>a-b);
+console.log(JSON.stringify({count: out.length, min: totals[0], median: totals[Math.floor(totals.length/2)], max: totals.at(-1), complete_first_frame: out.filter(x=>x.first_has===6).length, prefixes: Object.entries(Object.groupBy(out, x=>x.vin.slice(0,3))).map(([prefix, rows]) => ({prefix, count: rows.length}))}, null, 2));

tmp/hydrogen-audit-100-real/build_real_audit.mjs

@@ -0,0 +1,95 @@
+import fs from "node:fs/promises";
+import { Workbook, SpreadsheetFile } from "@oai/artifact-tool";
+
+const root="/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest";
+const inputDir=`${root}/tmp/hydrogen-audit-100-real/output-v4`;
+const outputRoot=`${root}/outputs/019fe9b9-eb60-7d22-8c0a-c70851a48083`;
+const packageDir=`${outputRoot}/100个真实车辆日氢耗核验资料包_V3`;
+const outputPath=`${packageDir}/100个真实车辆日氢耗人工验算底稿_V3.xlsx`;
+const previewDir=`${outputRoot}/preview-real-100-v3`;
+const days=JSON.parse(await fs.readFile(`${inputDir}/daily_results.json`,"utf8"));
+const C={navy:"#0B3A53",blue:"#0E7490",cyan:"#CDEEF4",pale:"#EAF6F8",white:"#FFFFFF",green:"#DCFCE7",greenText:"#166534",orange:"#FFEDD5",orangeText:"#9A3412",red:"#FEE2E2",redText:"#991B1B"};
+const coeffA=[0.05888460,-0.06136111,-0.002650473,0.002731125,0.001802374,-0.001150707,0.00009588528,-0.0000001109040,0.0000000001264403],coeffB=[1.325,1.87,2.5,2.8,2.938,3.14,3.37,3.75,4.0],coeffC=[1,1,2,2,2.42,2.63,3,4,5];
+function col(n){let s="";while(n){n--;s=String.fromCharCode(65+n%26)+s;n=Math.floor(n/26)}return s}
+function title(sheet,address,text){const r=sheet.getRange(address);r.merge();r.values=[[text]];r.format={fill:C.navy,font:{bold:true,color:C.white,size:16},verticalAlignment:"center",horizontalAlignment:"left"};r.format.rowHeight=34}
+function header(r){r.format={fill:C.blue,font:{bold:true,color:C.white},verticalAlignment:"center",horizontalAlignment:"center",wrapText:true,borders:{preset:"all",style:"thin",color:"#B8CDD5"}};r.format.rowHeight=34}
+function body(r){r.format={verticalAlignment:"center",borders:{insideHorizontal:{style:"thin",color:"#DDE7EB"},bottom:{style:"thin",color:"#B8CDD5"}}}}
+function widths(sheet,arr){arr.forEach((w,i)=>sheet.getRange(`${col(i+1)}:${col(i+1)}`).format.columnWidth=w)}
+function val(v){return v===undefined||v===null?null:v}
+function zFormula(p,t){return ["1",...Array.from({length:9},(_,i)=>`'参数与公式'!$B$${26+i}*POWER(100/(${t}+273.15),'参数与公式'!$C$${26+i})*POWER(${p},'参数与公式'!$D$${26+i})`)].join("+")}
+function massFormula(p,t,v){return `${p}*1000*0.00201588*${v}/(8.314472*(${t}+273.15)*(${zFormula(p,t)}))`}
+
+const wb=Workbook.create();wb.comments.setSelf({displayName:"车辆数据中台"});
+const guide=wb.worksheets.add("核验说明"),params=wb.worksheets.add("参数与公式"),summary=wb.worksheets.add("100车辆日结果"),h2Detail=wb.worksheets.add("氢量计算明细"),operation=wb.worksheets.add("运行周期明细"),rawIndex=wb.worksheets.add("原始帧索引"),fields=wb.worksheets.add("原始字段说明");
+for(const s of [guide,params,summary,h2Detail,operation,rawIndex,fields])s.showGridLines=false;
+
+title(guide,"A1:H1","100个真实车辆日氢耗人工验算底稿（V3）");guide.getRange("A3:B3").values=[["项目","说明"]];header(guide.getRange("A3:B3"));
+const statusCounts=Object.fromEntries(["OK","SUSPECT","NO_DATA"].map(k=>[k,days.filter(d=>d.stat.QualityStatus===k).length]));
+const guideRows=[
+ ["样本口径","2026-08-25，固定100个真实车辆日；4.5T普货41辆（380 L）、4.5T冷链59辆（520 L），动力电池均为21.04 kWh。"],
+ ["原始数据","沿用原100个样本的232,291条GB/T 32960原始帧，未更换车辆、日期或报文；每车1个CSV.GZ，保留原始HEX及中文映射字段。"],
+ ["有效分界点","取消上下电前后60秒窗口和首尾中位数，直接取满足车辆启动、字段完整、压力温度有效且不在外部充电/异常压力记录中的有效分界点。"],
+ ["物理用氢量","无加氢：首个有效运行分界点剩余氢量－最后有效运行分界点剩余氢量；有加氢：按加氢事件切段后累计各段氢量下降。充电不切分物理氢量。"],
+ ["充电识别","仅当充电状态=1且车辆状态=2时识别为外部充电；每次充电完成后建立新充电周期。"],
+ ["纯电里程","每个充电周期若启动时为纯电，仅累计首次连续纯电前缀；混动连续3帧且相邻不超过30秒后，从首帧分界点锁定为混动，直至下一次充电。若周期从混动启动，则纯电里程为0。"],
+ ["跨日状态","日界线只用于出报，不重置充电周期。若缺少日初已持久化状态，按已进入混动处理，不虚增日初纯电里程，并标记SUSPECT供复核。"],
+ ["SOC修正","只使用各充电周期混动段的状态边界：ΔSOC=末SOC－初SOC；电等效氢=电池容量×ΔSOC÷100÷16。SOC上升为正并从用氢量扣除；SOC下降为负，扣除负值即补回电池放电能量。"],
+ ["最终公式","修正耗氢量=物理用氢量－用电等效氢；混动里程=总里程－纯电里程；修正百公里氢耗=修正耗氢量÷混动里程×100。"],
+ ["人工核对顺序","①在“100车辆日结果”看系统值与Excel复算差；②在“氢量计算明细”核对加氢分段及压力质量；③在“运行周期明细”核对纯电前缀和混动SOC；④按事件ID回查原始CSV。"],
+ ["重算结果",`OK ${statusCounts.OK}辆日；SUSPECT ${statusCounts.SUSPECT}辆日；NO_DATA ${statusCounts.NO_DATA}辆日。SUSPECT不删除结果，保留原因和原始证据供人工判断。`],
+ ["算法版本","PRESSURE_NIST_VALID_BOUNDARY_CHARGE_CYCLE_V3"]];
+guide.getRange(`A4:B${3+guideRows.length}`).values=guideRows;body(guide.getRange(`A4:B${3+guideRows.length}`));guide.getRange(`B4:B${3+guideRows.length}`).format.wrapText=true;widths(guide,[24,112]);guide.freezePanes.freezeRows(3);
+
+title(params,"A1:F1","系统参数、压力—质量公式与业务计算口径");params.getRange("A3:C3").values=[["参数","取值","说明"]];header(params.getRange("A3:C3"));
+const pRows=[["4.5T普货储氢总容积(L)",380,"中台VIN参数表"],["4.5T冷链储氢总容积(L)",520,"中台VIN参数表"],["动力电池容量(kWh)",21.04,"两类4.5T车辆一致"],["氢气等效电量(kWh/kg)",16,"SOC能量折算"],["上电/下电时间窗口(s)",0,"直接使用有效分界点"],["加氢压升阈值(MPa)",3,"需持续300秒"],["加氢持续时间(s)",300,"5分钟"],["纯电异常压降(MPa)",5,"30分钟窗口"],["纯电异常窗口(s)",1800,"30分钟"],["混动确认连续帧数",3,"避免单帧运行模式抖动"],["混动确认相邻最大间隔(s)",30,"确认后回溯到首个混动帧"],["最低混动里程(km)",10,"不足标记SUSPECT"]];
+params.getRange(`A4:C${3+pRows.length}`).values=pRows;body(params.getRange(`A4:C${3+pRows.length}`));params.getRange(`B4:B${3+pRows.length}`).format.numberFormat="0.000";
+params.getRange("A18:F18").merge();params.getRange("A18:F18").values=[["核心公式"]];params.getRange("A18:F18").format={fill:C.cyan,font:{bold:true,color:C.navy}};
+const formulas=["Z = 1 + Σ[aᵢ × (100/Tₖ)^bᵢ × P^cᵢ]","剩余氢量 m = P × 1000 × 0.00201588 × V ÷ (8.314472 × Tₖ × Z)","ΔSOC = SOC_end − SOC_start；用电等效氢 = 电池容量 × ΔSOC ÷ 100 ÷ 16","修正耗氢量 = 物理用氢量 − 用电等效氢","混动里程 = 总里程 − 纯电里程；百公里氢耗 = 修正耗氢量 ÷ 混动里程 × 100"];
+for(let i=0;i<formulas.length;i++){const row=19+i;params.getRange(`A${row}:F${row}`).merge();params.getRange(`A${row}:F${row}`).values=[[formulas[i]]];params.getRange(`A${row}:F${row}`).format={fill:i%2?C.white:C.pale,font:{color:C.navy,bold:i===3},wrapText:true}}
+params.getRange("A25:D25").values=[["系数序号","aᵢ","bᵢ","cᵢ"]];header(params.getRange("A25:D25"));params.getRange("A26:D34").values=coeffA.map((a,i)=>[i+1,a,coeffB[i],coeffC[i]]);body(params.getRange("A26:D34"));params.getRange("B26:D34").format.numberFormat="0.0000000000";
+wb.comments.addThread({cell:params.getRange("B4")},"普货按中台VIN车型参数取380 L，不与冷链520 L混用。");wb.comments.addThread({cell:params.getRange("B5")},"冷链按中台VIN车型参数取520 L。");wb.comments.addThread({cell:params.getRange("B6")},"4.5T普货和冷链动力电池容量均为21.04 kWh。");wb.comments.addThread({cell:params.getRange("B7")},"业务确认：1 kg氢气等效16 kWh，用于SOC能量折算。");widths(params,[32,18,58,15,15,15]);params.freezePanes.freezeRows(3);
+
+const hHeaders=["样例","车牌","日期","VIN","车型","氢量段号","分段说明","开始时间","结束时间","开始事件ID","结束事件ID","数据源","储氢容积(L)","起始压力(MPa)","结束压力(MPa)","起始温度(℃)","结束温度(℃)","系统起始氢量(kg)","系统结束氢量(kg)","系统分段用氢(kg)","起始里程(km)","结束里程(km)","区间里程(km)","样本数","质量状态","起始氢量复算","结束氢量复算","起始质量差","结束质量差","分段用氢复算","用氢差值","复算结论"];
+h2Detail.getRange(`A1:${col(hHeaders.length)}1`).values=[hHeaders];header(h2Detail.getRange(`A1:${col(hHeaders.length)}1`));const hRows=[];for(const d of days)for(const it of d.stat.HydrogenIntervals||[])hRows.push([d.candidate.sample_no,d.candidate.plate,d.candidate.stat_date,d.candidate.vin,d.candidate.model,it.index,it.qualityReason,it.startTime,it.endTime,it.startEventId,it.endEventId,it.source,d.candidate.tank_capacity_l,it.startPressureMpa,it.endPressureMpa,it.startTemperatureC,it.endTemperatureC,it.startMassKg,it.endMassKg,it.rawHydrogenConsumptionKg,val(it.startMileageKm),val(it.endMileageKm),val(it.mileageKm),it.sampleCount,it.qualityStatus]);
+h2Detail.getRange(`A2:Y${hRows.length+1}`).values=hRows;for(let r=2;r<=hRows.length+1;r++){h2Detail.getRange(`Z${r}`).formulas=[[`=${massFormula(`N${r}`,`P${r}`,`M${r}`)}`]];h2Detail.getRange(`AA${r}`).formulas=[[`=${massFormula(`O${r}`,`Q${r}`,`M${r}`)}`]];h2Detail.getRange(`AB${r}`).formulas=[[`=Z${r}-R${r}`]];h2Detail.getRange(`AC${r}`).formulas=[[`=AA${r}-S${r}`]];h2Detail.getRange(`AD${r}`).formulas=[[`=Z${r}-AA${r}`]];h2Detail.getRange(`AE${r}`).formulas=[[`=AD${r}-T${r}`]];h2Detail.getRange(`AF${r}`).formulas=[[`=IF(MAX(ABS(AB${r}),ABS(AC${r}),ABS(AE${r}))<=0.002,"一致","复核")`]]}
+body(h2Detail.getRange(`A2:AF${hRows.length+1}`));h2Detail.getRange(`M2:AE${hRows.length+1}`).format.numberFormat="0.000000";h2Detail.getRange(`Y2:Y${hRows.length+1}`).conditionalFormats.add("containsText",{text:"SUSPECT",format:{fill:C.orange,font:{color:C.orangeText,bold:true}}});h2Detail.getRange(`AF2:AF${hRows.length+1}`).conditionalFormats.add("containsText",{text:"一致",format:{fill:C.green,font:{color:C.greenText,bold:true}}});h2Detail.getRange(`AF2:AF${hRows.length+1}`).conditionalFormats.add("containsText",{text:"复核",format:{fill:C.red,font:{color:C.redText,bold:true}}});h2Detail.tables.add(`A1:AF${hRows.length+1}`,true,"HydrogenEvidenceV3").style="TableStyleMedium2";h2Detail.freezePanes.freezeRows(1);h2Detail.freezePanes.freezeColumns(7);widths(h2Detail,[8,13,13,22,24,10,34,22,22,34,34,24,14,14,14,14,14,17,17,17,15,15,15,10,13,17,17,14,14,17,14,12]);
+
+const oHeaders=["样例","车牌","日期","VIN","车型","充电周期号","区间类型","区间号","开始时间","结束时间","开始事件ID","结束事件ID","数据源","储氢容积(L)","电池容量(kWh)","起始压力(MPa)","结束压力(MPa)","起始温度(℃)","结束温度(℃)","系统起始氢量","系统结束氢量","区间物理氢量","起始SOC","结束SOC","系统ΔSOC(末-初)","系统电量变化(kWh)","系统电等效氢(kg)","系统段修正氢量","起始里程","结束里程","系统区间里程","系统段百公里","样本数","质量状态","分界说明","起始氢量复算","结束氢量复算","起始质量差","结束质量差","ΔSOC复算","电量变化复算","电等效氢复算","段修正氢量复算","里程复算","纯电里程贡献","混动电等效氢贡献","复算结论"];
+operation.getRange(`A1:${col(oHeaders.length)}1`).values=[oHeaders];header(operation.getRange(`A1:${col(oHeaders.length)}1`));const oRows=[];for(const d of days){let cycleNo=0,previous="";for(const it of d.stat.Intervals||[]){if(cycleNo===0||it.type==="PURE_ELECTRIC"||previous==="MIXED")cycleNo++;oRows.push([d.candidate.sample_no,d.candidate.plate,d.candidate.stat_date,d.candidate.vin,d.candidate.model,cycleNo,it.type,it.index,it.startTime,it.endTime,it.startEventId,it.endEventId,it.source,d.candidate.tank_capacity_l,21.04,it.startPressureMpa,it.endPressureMpa,it.startTemperatureC,it.endTemperatureC,it.startMassKg,it.endMassKg,it.rawHydrogenConsumptionKg,val(it.startSocPercent),val(it.endSocPercent),val(it.batterySocDeltaPct),val(it.batteryEnergyChangeKWh),val(it.electricEquivalentHydrogenKg),val(it.correctedHydrogenConsumptionKg),val(it.startMileageKm),val(it.endMileageKm),val(it.mileageKm),val(it.consumptionKgPer100Km),it.sampleCount,it.qualityStatus,it.qualityReason]);previous=it.type}}
+operation.getRange(`A2:AI${oRows.length+1}`).values=oRows;for(let r=2;r<=oRows.length+1;r++){operation.getRange(`AJ${r}`).formulas=[[`=${massFormula(`P${r}`,`R${r}`,`N${r}`)}`]];operation.getRange(`AK${r}`).formulas=[[`=${massFormula(`Q${r}`,`S${r}`,`N${r}`)}`]];operation.getRange(`AL${r}`).formulas=[[`=AJ${r}-T${r}`]];operation.getRange(`AM${r}`).formulas=[[`=AK${r}-U${r}`]];operation.getRange(`AN${r}`).formulas=[[`=IF(OR(W${r}="",X${r}=""),"",X${r}-W${r})`]];operation.getRange(`AO${r}`).formulas=[[`=IF(AN${r}="","",O${r}*AN${r}/100)`]];operation.getRange(`AP${r}`).formulas=[[`=IF(AO${r}="","",AO${r}/'参数与公式'!$B$7)`]];operation.getRange(`AQ${r}`).formulas=[[`=IF(G${r}="MIXED",V${r}-AP${r},"")`]];operation.getRange(`AR${r}`).formulas=[[`=IF(OR(AC${r}="",AD${r}=""),"",AD${r}-AC${r})`]];operation.getRange(`AS${r}`).formulas=[[`=IF(G${r}="PURE_ELECTRIC",AR${r},0)`]];operation.getRange(`AT${r}`).formulas=[[`=IF(G${r}="MIXED",AP${r},0)`]];operation.getRange(`AU${r}`).formulas=[[`=IF(MAX(ABS(AL${r}),ABS(AM${r}),ABS(AN${r}-Y${r}),ABS(AP${r}-AA${r}),ABS(AR${r}-AE${r}))<=0.002,"一致","复核")`]]}
+body(operation.getRange(`A2:AU${oRows.length+1}`));operation.getRange(`N2:AT${oRows.length+1}`).format.numberFormat="0.000000";operation.getRange(`G2:G${oRows.length+1}`).conditionalFormats.add("containsText",{text:"PURE_ELECTRIC",format:{fill:C.cyan,font:{color:C.navy}}});operation.getRange(`G2:G${oRows.length+1}`).conditionalFormats.add("containsText",{text:"MIXED",format:{fill:C.green,font:{color:C.greenText}}});operation.getRange(`AU2:AU${oRows.length+1}`).conditionalFormats.add("containsText",{text:"一致",format:{fill:C.green,font:{color:C.greenText,bold:true}}});operation.getRange(`AU2:AU${oRows.length+1}`).conditionalFormats.add("containsText",{text:"复核",format:{fill:C.red,font:{color:C.redText,bold:true}}});operation.tables.add(`A1:AU${oRows.length+1}`,true,"OperationCyclesV3").style="TableStyleMedium2";operation.freezePanes.freezeRows(1);operation.freezePanes.freezeColumns(8);widths(operation,[8,13,13,22,24,11,15,9,22,22,34,34,24,14,15,14,14,14,14,16,16,16,12,12,15,17,17,18,15,15,16,17,10,13,42,17,17,14,14,15,17,17,18,15,16,20,12]);
+
+const sHeaders=["样例","日期","车牌","VIN","车型","储氢容积(L)","电池容量(kWh)","原统计日里程(km)","有效起始仪表里程","有效结束仪表里程","总里程复算","API原始帧","算法样本","氢量分段数","运行区间数","加氢次数","充电次数","异常记录","系统物理用氢","物理用氢复算","物理差值","系统ΔSOC","ΔSOC复算","系统电等效氢","电等效氢复算","等效氢差值","系统修正耗氢","修正耗氢复算","修正差值","系统纯电里程","纯电里程复算","系统混动里程","混动里程复算","混动差值","系统物理百公里","物理百公里复算","系统修正百公里","修正百公里复算","百公里差值","质量状态","质量原因","算法版本","原始文件","打开原始帧"];
+summary.getRange(`A1:${col(sHeaders.length)}1`).values=[sHeaders];header(summary.getRange(`A1:${col(sHeaders.length)}1`));
+const sRows=days.map(d=>{const s=d.stat,c=d.candidate;return[c.sample_no,c.stat_date,c.plate,c.vin,c.model,c.tank_capacity_l,21.04,c.daily_mileage_km,val(s.FirstObservation?.MileageKm),val(s.LastObservation?.MileageKm),null,d.apiRawFrameCount,d.algorithmSamples,(s.HydrogenIntervals||[]).length,(s.Intervals||[]).length,s.RefuelCount,s.ChargeCount,s.InvalidSegmentCount+s.AbnormalDropCount,s.ConsumptionKg,null,null,val(s.BatterySOCDeltaPct),null,val(s.ElectricEquivalentKg),null,null,val(s.CorrectedConsumptionKg),null,null,s.PureElectricMileageKm,null,s.MixedMileageKm,null,null,val(s.ConsumptionKgPer100Km),null,val(s.SOCBalancedKgPer100Km),null,null,s.QualityStatus,s.QualityReason,s.CalculationParameters?.algorithmVersion,d.rawArchiveFile,null]});
+summary.getRange(`A2:AR${sRows.length+1}`).values=sRows;const hEnd=hRows.length+1,oEnd=oRows.length+1;
+for(let r=2;r<=sRows.length+1;r++){
+ summary.getRange(`K${r}`).formulas=[[`=IF(OR(I${r}="",J${r}=""),"",J${r}-I${r})`]];
+ summary.getRange(`T${r}`).formulas=[[`=SUMIFS('氢量计算明细'!$AD$2:$AD$${hEnd},'氢量计算明细'!$D$2:$D$${hEnd},$D${r})`]];summary.getRange(`U${r}`).formulas=[[`=T${r}-S${r}`]];
+ summary.getRange(`W${r}`).formulas=[[`=SUMIFS('运行周期明细'!$AN$2:$AN$${oEnd},'运行周期明细'!$D$2:$D$${oEnd},$D${r},'运行周期明细'!$G$2:$G$${oEnd},"MIXED")`]];
+ summary.getRange(`Y${r}`).formulas=[[`=SUMIFS('运行周期明细'!$AT$2:$AT$${oEnd},'运行周期明细'!$D$2:$D$${oEnd},$D${r})`]];summary.getRange(`Z${r}`).formulas=[[`=Y${r}-X${r}`]];
+ summary.getRange(`AB${r}`).formulas=[[`=T${r}-Y${r}`]];summary.getRange(`AC${r}`).formulas=[[`=AB${r}-AA${r}`]];
+ summary.getRange(`AE${r}`).formulas=[[`=SUMIFS('运行周期明细'!$AS$2:$AS$${oEnd},'运行周期明细'!$D$2:$D$${oEnd},$D${r})`]];
+ summary.getRange(`AG${r}`).formulas=[[`=K${r}-AE${r}`]];summary.getRange(`AH${r}`).formulas=[[`=AG${r}-AF${r}`]];
+ summary.getRange(`AJ${r}`).formulas=[[`=IF(AG${r}>0,T${r}*100/AG${r},"")`]];summary.getRange(`AL${r}`).formulas=[[`=IF(AG${r}>0,AB${r}*100/AG${r},"")`]];summary.getRange(`AM${r}`).formulas=[[`=IF(OR(AK${r}="",AL${r}=""),"",AL${r}-AK${r})`]];
+ summary.getRange(`AR${r}`).formulas=[[`=HYPERLINK("${days[r-2].rawArchiveFile}","打开")`]];
+}
+body(summary.getRange(`A2:AR${sRows.length+1}`));summary.getRange(`F2:AM${sRows.length+1}`).format.numberFormat="0.000000";
+for(const [text,fill,font] of [["OK",C.green,C.greenText],["SUSPECT",C.orange,C.orangeText],["NO_DATA",C.red,C.redText]])summary.getRange(`AN2:AN${sRows.length+1}`).conditionalFormats.add("containsText",{text,format:{fill,font:{color:font,bold:true}}});
+for(const c of ["U","Z","AC","AH","AM"]){summary.getRange(`${c}2:${c}${sRows.length+1}`).conditionalFormats.add("cellIs",{operator:"greaterThan",formula:0.002,format:{fill:C.red,font:{color:C.redText,bold:true}}});summary.getRange(`${c}2:${c}${sRows.length+1}`).conditionalFormats.add("cellIs",{operator:"lessThan",formula:-0.002,format:{fill:C.red,font:{color:C.redText,bold:true}}})}
+summary.tables.add(`A1:AR${sRows.length+1}`,true,"VehicleDayResultsV3").style="TableStyleMedium2";summary.freezePanes.freezeRows(1);summary.freezePanes.freezeColumns(5);widths(summary,[8,13,13,22,24,14,14,17,18,18,15,12,12,12,12,11,11,12,16,16,14,14,14,16,16,14,17,17,14,16,16,16,16,14,18,18,18,18,14,13,48,42,58,12]);
+
+const rHeaders=["样例","车牌","VIN","日期","车型","储氢容积(L)","电池容量(kWh)","API原始帧数","唯一帧数","重复帧数","算法样本数","关键字段帧数","原始最早事件时间","原始最晚事件时间","原始文件","打开"];
+rawIndex.getRange("A1:P1").values=[rHeaders];header(rawIndex.getRange("A1:P1"));const rRows=days.map(d=>[d.candidate.sample_no,d.candidate.plate,d.candidate.vin,d.candidate.stat_date,d.candidate.model,d.candidate.tank_capacity_l,21.04,d.apiRawFrameCount,d.uniqueFrameCount,d.duplicateFrameCount,d.algorithmSamples,d.criticalFieldRows,d.earliestEventTime,d.latestEventTime,d.rawArchiveFile,null]);rawIndex.getRange(`A2:P${rRows.length+1}`).values=rRows;for(let r=2;r<=rRows.length+1;r++)rawIndex.getRange(`P${r}`).formulas=[[`=HYPERLINK("${days[r-2].rawArchiveFile}","打开")`]];body(rawIndex.getRange(`A2:P${rRows.length+1}`));rawIndex.tables.add(`A1:P${rRows.length+1}`,true,"RawFrameManifestV3").style="TableStyleMedium2";rawIndex.freezePanes.freezeRows(1);rawIndex.freezePanes.freezeColumns(5);widths(rawIndex,[8,13,22,13,24,14,14,14,12,12,14,15,21,21,58,12]);
+
+title(fields,"A1:D1","原始帧字段及人工核验用途");fields.getRange("A3:D3").values=[["中文字段","GB/T 32960解析键/原始属性","用途","校验规则/枚举"]];header(fields.getRange("A3:D3"));
+const fRows=[["原始报文HEX","raw_hex","回查原始帧","完整保留，不参与公式"],["事件ID","event_id","连接各明细起止事件","按ID在对应CSV查找"],["事件时间","event_time","确定自然日及排序","以事件时间为准"],["最高氢压(MPa)","gb32960.fuel_cell.max_hydrogen_pressure_mpa","压力—质量换算","0<P≤70"],["最高氢温(℃)","gb32960.fuel_cell.max_hydrogen_temperature_c","压力—质量换算","T>-40"],["电池SOC(%)","gb32960.vehicle.soc_percent","混动边界SOC修正","0–100；只取相关状态边界"],["仪表总里程(km)","gb32960.vehicle.total_mileage_km","总/纯电/混动里程","分界点末值-初值"],["车辆状态","gb32960.vehicle.vehicle_status","启动及充电联合判断","1=启动，2=熄火，其他按国标保留"],["充电状态","gb32960.vehicle.charge_status","外部充电联合判断","1=停车充电，2=行驶充电，3=未充电，4=充电完成"],["运行模式","gb32960.vehicle.running_mode","纯电前缀/混动锁定","1=纯电，2=混动，3=燃油，254=异常，255=无效"],["燃料电池工作状态","gb32960.gd_fc_stack.engine_work_state","辅助确认纯电/混动","2=工作；0/1=未工作/停机"],["系统压力换算质量(kg)","工作底稿复算列","氢量端点","按VIN容积+NIST公式"],["计算角色/排除原因","工作底稿标注","定位参与/排除状态","有效分界点、外部充电、异常或字段缺失"]];
+fields.getRange(`A4:D${3+fRows.length}`).values=fRows;body(fields.getRange(`A4:D${3+fRows.length}`));fields.getRange(`A4:D${3+fRows.length}`).format.wrapText=true;widths(fields,[28,62,40,54]);fields.freezePanes.freezeRows(3);
+
+await fs.mkdir(packageDir,{recursive:true});
+const checks={};for(const [name,range] of [["核验说明","A1:H15"],["参数与公式","A1:F34"],["100车辆日结果","A1:AR12"],["氢量计算明细","A1:AF15"],["运行周期明细","A1:AU15"],["原始帧索引","A1:P15"],["原始字段说明","A1:D16"]])checks[name]=(await wb.inspect({kind:"table",sheetId:name,range,include:"values,formulas",tableMaxRows:18,tableMaxCols:50,maxChars:18000})).ndjson;
+const formulaErrors=await wb.inspect({kind:"match",searchTerm:"#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A",options:{useRegex:true,maxResults:300},summary:"final formula error scan",maxChars:10000});
+const xlsx=await SpreadsheetFile.exportXlsx(wb);await xlsx.save(outputPath);
+await fs.rm(previewDir,{recursive:true,force:true});await fs.mkdir(previewDir,{recursive:true});const renderRanges={"核验说明":"A1:H15","参数与公式":"A1:F34","100车辆日结果":"A1:AR14","氢量计算明细":"A1:AF14","运行周期明细":"A1:AU14","原始帧索引":"A1:P14","原始字段说明":"A1:D16"};for(const [name,range] of Object.entries(renderRanges)){const image=await wb.render({sheetName:name,range,scale:1,format:"png"});await fs.writeFile(`${previewDir}/${name}.png`,new Uint8Array(await image.arrayBuffer()))}
+await fs.cp(`${inputDir}/raw`,`${packageDir}/raw`,{recursive:true,force:true});for(const name of ["daily_results.json","raw_manifest.csv","selected_vehicles.json"])await fs.copyFile(`${inputDir}/${name}`,`${packageDir}/${name}`);
+await fs.writeFile(`${outputRoot}/verification-real-100-v3.json`,JSON.stringify({outputPath,checks,formulaErrors:formulaErrors.ndjson,days:days.length,hydrogenIntervals:hRows.length,operationIntervals:oRows.length},null,2));console.log(JSON.stringify({outputPath,days:days.length,hydrogenIntervals:hRows.length,operationIntervals:oRows.length,previewDir,formulaErrors:formulaErrors.ndjson},null,2));

tmp/hydrogen-audit-100-real/inspect_v3.mjs

@@ -0,0 +1,10 @@
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const path = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/019fe9b9-eb60-7d22-8c0a-c70851a48083/100个真实车辆日氢耗核验资料包_V3/100个真实车辆日氢耗人工验算底稿_V3.xlsx";
+const workbook = await SpreadsheetFile.importXlsx(await FileBlob.load(path));
+for (const [sheetId, range] of [["100车辆日结果", "A53:AR53"], ["氢量计算明细", "A1:AF4"], ["运行周期明细", "A1:AU8"]]) {
+  const result = await workbook.inspect({kind:"table", sheetId, range, include:"values,formulas", tableMaxRows:10, tableMaxCols:50, maxChars:16000});
+  console.log(result.ndjson);
+}
+const errors = await workbook.inspect({kind:"match",searchTerm:"#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A",options:{useRegex:true,maxResults:300},summary:"final formula error scan",maxChars:4000});
+console.log(errors.ndjson);

tmp/hydrogen-formula-analysis-20260826/inspect.mjs

@@ -0,0 +1,46 @@
+import fs from "node:fs/promises";
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const inputPath = "/Users/lingniu/Downloads/氢气计算公式.xlsx";
+const outputDir = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/tmp/hydrogen-formula-analysis-20260826/preview";
+await fs.mkdir(outputDir, { recursive: true });
+
+const workbook = await SpreadsheetFile.importXlsx(await FileBlob.load(inputPath));
+const overview = await workbook.inspect({
+  kind: "workbook,sheet,table",
+  include: "id,name,values,formulas",
+  maxChars: 12000,
+  tableMaxRows: 30,
+  tableMaxCols: 20,
+  tableMaxCellChars: 300,
+});
+console.log("OVERVIEW");
+console.log(overview.ndjson);
+
+const sheets = (await workbook.inspect({ kind: "sheet", include: "id,name", maxChars: 6000 })).ndjson
+  .split("\n")
+  .filter(Boolean)
+  .map((line) => JSON.parse(line))
+  .filter((item) => item.kind === "sheet");
+
+for (let index = 0; index < sheets.length; index += 1) {
+  const sheet = sheets[index];
+  const region = await workbook.inspect({
+    kind: "region,formula,computedStyle",
+    sheetId: sheet.name,
+    range: "A1:Z80",
+    include: "values,formulas",
+    maxChars: 30000,
+    tableMaxRows: 80,
+    tableMaxCols: 26,
+    tableMaxCellChars: 500,
+    options: { maxResults: 300 },
+  });
+  console.log(`SHEET ${sheet.name}`);
+  console.log(region.ndjson);
+  const rendered = await workbook.render({ sheetName: sheet.name, autoCrop: "all", scale: 2, format: "png" });
+  const safeName = String(sheet.name).replace(/[\\/:*?"<>|]/g, "_");
+  await fs.writeFile(`${outputDir}/${String(index + 1).padStart(2, "0")}-${safeName}.png`, new Uint8Array(await rendered.arrayBuffer()));
+}
+
+console.log(JSON.stringify({ inputPath, outputDir, sheetCount: sheets.length }));

tmp/hydrogen_audit_120/build_hydrogen_audit.mjs

@@ -0,0 +1,496 @@
+import fs from "node:fs/promises";
+import { SpreadsheetFile, Workbook } from "@oai/artifact-tool";
+
+const outputDir = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/019fe9b9-eb60-7d22-8c0a-c70851a48083";
+const outputPath = `${outputDir}/氢耗算法120组人工验算底稿.xlsx`;
+const previewDir = `${outputDir}/preview`;
+
+const colors = {
+  navy: "#0B3A53",
+  blue: "#0E7490",
+  cyan: "#CDEEF4",
+  pale: "#EAF6F8",
+  green: "#DCFCE7",
+  greenText: "#166534",
+  orange: "#FFEDD5",
+  orangeText: "#9A3412",
+  red: "#FEE2E2",
+  redText: "#991B1B",
+  gray: "#E5E7EB",
+  grayText: "#475569",
+  white: "#FFFFFF",
+};
+
+const coeffA = [0.05888460, -0.06136111, -0.002650473, 0.002731125, 0.001802374, -0.001150707, 0.00009588528, -0.0000001109040, 0.0000000001264403];
+const coeffB = [1.325, 1.87, 2.5, 2.8, 2.938, 3.14, 3.37, 3.75, 4.0];
+const coeffC = [1, 1, 2, 2, 2.42, 2.63, 3, 4, 5];
+
+function massKg(pressureMPa, temperatureC, volumeLiter) {
+  const temperatureK = temperatureC + 273.15;
+  let z = 1;
+  for (let i = 0; i < coeffA.length; i++) {
+    z += coeffA[i] * Math.pow(100 / temperatureK, coeffB[i]) * Math.pow(pressureMPa, coeffC[i]);
+  }
+  return pressureMPa * 1000 * 0.00201588 * volumeLiter / (8.314472 * temperatureK * z);
+}
+
+function excelCol(index) {
+  let result = "";
+  let value = index;
+  while (value > 0) {
+    value--;
+    result = String.fromCharCode(65 + (value % 26)) + result;
+    value = Math.floor(value / 26);
+  }
+  return result;
+}
+
+function styleTitle(sheet, range, title) {
+  range.merge();
+  range.values = [[title]];
+  range.format = {
+    fill: colors.navy,
+    font: { bold: true, color: colors.white },
+    verticalAlignment: "center",
+    horizontalAlignment: "left",
+  };
+  range.format.rowHeight = 32;
+}
+
+function styleHeader(range) {
+  range.format = {
+    fill: colors.blue,
+    font: { bold: true, color: colors.white },
+    verticalAlignment: "center",
+    horizontalAlignment: "center",
+    wrapText: true,
+    borders: { preset: "all", style: "thin", color: "#B8CDD5" },
+  };
+  range.format.rowHeight = 30;
+}
+
+function styleBody(range) {
+  range.format = {
+    verticalAlignment: "center",
+    borders: {
+      insideHorizontal: { style: "thin", color: "#DDE7EB" },
+      bottom: { style: "thin", color: "#B8CDD5" },
+    },
+  };
+}
+
+function setWidths(sheet, widths) {
+  widths.forEach((width, index) => {
+    sheet.getRange(`${excelCol(index + 1)}:${excelCol(index + 1)}`).format.columnWidth = width;
+  });
+}
+
+const workbook = Workbook.create();
+workbook.comments.setSelf({ displayName: "User" });
+const guide = workbook.worksheets.add("验算说明");
+const params = workbook.worksheets.add("参数与系数");
+const grid = workbook.worksheets.add("120组压力质量验算");
+const raw = workbook.worksheets.add("原始报文120条");
+const detail = workbook.worksheets.add("样本计算明细");
+const summary = workbook.worksheets.add("每日与区间汇总");
+
+for (const sheet of [guide, params, grid, raw, detail, summary]) sheet.showGridLines = false;
+
+// 参数与NIST系数
+styleTitle(params, params.getRange("A1:F1"), "氢耗算法参数与NIST实气压缩因子系数");
+params.getRange("A3:C3").values = [["参数", "取值", "说明"]];
+styleHeader(params.getRange("A3:C3"));
+const parameterRows = [
+  ["储氢系统总容积(L)", 520, "验算样本使用，可替换为车型确认值"],
+  ["动力电池容量(kWh)", 21.04, "4.5T示例；必须使用售后技术部确认值"],
+  ["1kg氢气等效电量(kWh/kg)", 16, "当前业务折算参数"],
+  ["上电稳定等待(s)", 60, "上电后60秒内样本不作为计算端点"],
+  ["下电提前窗口(s)", 60, "下电前60秒样本不作为计算端点"],
+  ["加氢压力上升阈值(MPa)", 3, "并需持续达到保持时间"],
+  ["加氢保持时间(s)", 300, "5分钟"],
+  ["纯电异常压降阈值(MPa)", 5, "30分钟内超过该值判异常"],
+  ["纯电异常窗口(s)", 1800, "30分钟"],
+  ["端点中位样本数", 5, "区间首尾各5条"],
+  ["最少有效样本数", 10, "不足10条不形成有效区间"],
+  ["样本间隔(s)", 10, "本验算原始数据间隔"],
+];
+params.getRange(`A4:C${3 + parameterRows.length}`).values = parameterRows;
+styleBody(params.getRange(`A4:C${3 + parameterRows.length}`));
+params.getRange(`B4:B${3 + parameterRows.length}`).format.numberFormat = "0.000";
+
+params.getRange("A18:D18").values = [["系数序号", "aᵢ", "bᵢ", "cᵢ"]];
+styleHeader(params.getRange("A18:D18"));
+params.getRange("A19:D27").values = coeffA.map((a, index) => [index + 1, a, coeffB[index], coeffC[index]]);
+styleBody(params.getRange("A19:D27"));
+params.getRange("B19:D27").format.numberFormat = "0.0000000000";
+params.getRange("A29:F33").values = [
+  ["压力—质量公式", null, null, null, null, null],
+  ["Z = 1 + Σ[aᵢ × (100/Tₖ)^bᵢ × P^cᵢ]", null, null, null, null, null],
+  ["m = P × 1000 × 0.00201588 × V ÷ (8.314472 × Tₖ × Z)", null, null, null, null, null],
+  ["SOC平衡公式", null, null, null, null, null],
+  ["m_SOC = m_H₂ + C_battery × (SOC_start − SOC_end) ÷ 100 ÷ 16", null, null, null, null, null],
+];
+for (const row of [29, 30, 31, 32, 33]) params.getRange(`A${row}:F${row}`).merge();
+params.getRange("A29:F29").format = { fill: colors.cyan, font: { bold: true, color: colors.navy } };
+params.getRange("A32:F32").format = { fill: colors.cyan, font: { bold: true, color: colors.navy } };
+params.getRange("A30:F31").format = { fill: colors.pale, font: { color: colors.navy }, wrapText: true };
+params.getRange("A33:F33").format = { fill: colors.pale, font: { color: colors.navy }, wrapText: true };
+setWidths(params, [28, 18, 52, 16, 16, 16]);
+params.freezePanes.freezeRows(3);
+
+// 120组独立压力—质量验算
+const gridHeaders = ["序号", "压力P(MPa)", "温度T(℃)", "容积V(L)", "绝对温度Tₖ(K)", ...Array.from({ length: 9 }, (_, i) => `Z分项${i + 1}`), "压缩因子Z", "分子", "分母", "Excel复算质量(kg)", "系统计算质量(kg)", "绝对差值(kg)", "核验结果"];
+grid.getRange(`A1:${excelCol(gridHeaders.length)}1`).values = [gridHeaders];
+styleHeader(grid.getRange(`A1:${excelCol(gridHeaders.length)}1`));
+const pressures = [1, 3, 5, 8, 10, 12, 15, 18, 21, 25, 30, 35];
+const temperatures = [-20, -10, 0, 10, 20, 30, 40, 50, 60, 70];
+const gridInputs = [];
+const gridSystem = [];
+let gridIndex = 1;
+for (const pressure of pressures) {
+  for (const temperature of temperatures) {
+    gridInputs.push([gridIndex++, pressure, temperature, 520]);
+    gridSystem.push(massKg(pressure, temperature, 520));
+  }
+}
+grid.getRange("A2:D121").values = gridInputs;
+for (let row = 2; row <= 121; row++) {
+  grid.getRange(`E${row}`).formulas = [[`=C${row}+273.15`]];
+  for (let term = 0; term < 9; term++) {
+    const col = excelCol(6 + term);
+    const coeffRow = 19 + term;
+    grid.getRange(`${col}${row}`).formulas = [[`='参数与系数'!$B$${coeffRow}*POWER(100/$E${row},'参数与系数'!$C$${coeffRow})*POWER($B${row},'参数与系数'!$D$${coeffRow})`]];
+  }
+  grid.getRange(`O${row}`).formulas = [[`=1+SUM(F${row}:N${row})`]];
+  grid.getRange(`P${row}`).formulas = [[`=B${row}*1000*0.00201588*D${row}`]];
+  grid.getRange(`Q${row}`).formulas = [[`=8.314472*E${row}*O${row}`]];
+  grid.getRange(`R${row}`).formulas = [[`=P${row}/Q${row}`]];
+  grid.getRange(`S${row}`).values = [[gridSystem[row - 2]]];
+  grid.getRange(`T${row}`).formulas = [[`=ABS(R${row}-S${row})`]];
+  grid.getRange(`U${row}`).formulas = [[`=IF(T${row}<=0.0000000001,"通过","不通过")`]];
+}
+styleBody(grid.getRange("A2:U121"));
+grid.getRange("B2:D121").format.numberFormat = "0.000";
+grid.getRange("E2:Q121").format.numberFormat = "0.0000000000";
+grid.getRange("R2:S121").format.numberFormat = "0.000000";
+grid.getRange("T2:T121").format.numberFormat = "0.000000000000";
+grid.getRange("U2:U121").conditionalFormats.add("containsText", { text: "通过", format: { fill: colors.green, font: { color: colors.greenText, bold: true } } });
+grid.getRange("U2:U121").conditionalFormats.add("containsText", { text: "不通过", format: { fill: colors.red, font: { color: colors.redText, bold: true } } });
+grid.tables.add("A1:U121", true, "NISTValidation120").style = "TableStyleMedium2";
+grid.freezePanes.freezeRows(1);
+grid.freezePanes.freezeColumns(5);
+setWidths(grid, [8, 12, 12, 12, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 16, 16, 18, 18, 18, 12]);
+
+// 构造120条可人工核验的原始GB/T 32960解析字段样本。
+const rawHeaders = ["序号", "报文ID", "上报时间", "数据源", "车辆状态", "充电状态", "运行模式", "燃料电池工作", "氢压(MPa)", "氢温(℃)", "储氢容积(L)", "电SOC(%)", "仪表总里程(km)", "原始解析字段JSON"];
+raw.getRange("A1:N1").values = [rawHeaders];
+styleHeader(raw.getRange("A1:N1"));
+const rawRows = [];
+const systemMasses = [];
+const baseTime = new Date(Date.UTC(2026, 7, 26, 0, 0, 0));
+for (let index = 0; index < 120; index++) {
+  const eventId = `audit-32960-${String(index + 1).padStart(3, "0")}`;
+  const observedAt = new Date(baseTime.getTime() + index * 10_000);
+  let vehicleState = 1;
+  let chargeState = 3;
+  let runningMode = 2;
+  let fuelCellActive = 1;
+  let pressure;
+  let soc;
+  let mileage;
+  if (index < 40) {
+    pressure = 30 - index * 0.04;
+    soc = 80 - index * 0.04;
+    mileage = 1000 + index * 0.08;
+  } else if (index < 60) {
+    vehicleState = 2;
+    chargeState = 1;
+    runningMode = 0;
+    fuelCellActive = 0;
+    pressure = 28.4 - (index - 40) * 0.002;
+    soc = 78.4 + (index - 40) * (11.6 / 19);
+    mileage = 1003.2;
+  } else if (index < 80) {
+    chargeState = index === 60 ? 4 : 3;
+    runningMode = 1;
+    fuelCellActive = 0;
+    pressure = 28.36 - (index - 60) * 0.005;
+    soc = 90 - (index - 60) * 0.15;
+    mileage = 1003.2 + (index - 60) * 0.1;
+  } else {
+    pressure = 28.26 - (index - 80) * 0.06;
+    soc = 87 - (index - 80) * 0.04;
+    mileage = 1005.2 + (index - 80) * 0.12;
+    if (index === 119) vehicleState = 2;
+  }
+  const temperature = 30 + Math.sin(index / 10);
+  const mass = massKg(pressure, temperature, 520);
+  systemMasses.push(mass);
+  const rawJson = JSON.stringify({
+    event_id: eventId,
+    vehicle_state: vehicleState,
+    charge_status: chargeState,
+    running_mode: runningMode,
+    fuel_cell_active: fuelCellActive,
+    hydrogen_max_pressure_mpa: Number(pressure.toFixed(6)),
+    hydrogen_max_temperature_c: Number(temperature.toFixed(6)),
+    soc_percent: Number(soc.toFixed(6)),
+    total_mileage_km: Number(mileage.toFixed(6)),
+  });
+  rawRows.push([index + 1, eventId, observedAt, "GB32960-audit-sample", vehicleState, chargeState, runningMode, fuelCellActive, pressure, temperature, 520, soc, mileage, rawJson]);
+}
+raw.getRange("A2:N121").values = rawRows;
+styleBody(raw.getRange("A2:N121"));
+raw.getRange("C2:C121").format.numberFormat = "yyyy-mm-dd hh:mm:ss";
+raw.getRange("I2:M121").format.numberFormat = "0.000000";
+raw.getRange("N2:N121").format.wrapText = false;
+raw.getRange("A123:N126").values = [
+  ["人工核验说明", null, null, null, null, null, null, null, null, null, null, null, null, null],
+  ["本页为验算构造的原始解析字段样本，不是生产车辆真实报文。生产复核时应按相同字段结构替换为中台导出的真实32960数据。", null, null, null, null, null, null, null, null, null, null, null, null, null],
+  ["车辆状态：1=启动/运行，2=熄火；充电状态：1=停车充电，3=未充电，4=充电完成；运行模式：1=纯电，2=混动。", null, null, null, null, null, null, null, null, null, null, null, null, null],
+  ["停车充电需由车辆状态与充电状态联合判断；充电区间不计算氢耗，充电完成重新建立SOC、压力、温度和里程基线。", null, null, null, null, null, null, null, null, null, null, null, null, null],
+];
+for (let row = 123; row <= 126; row++) raw.getRange(`A${row}:N${row}`).merge();
+raw.getRange("A123:N123").format = { fill: colors.cyan, font: { bold: true, color: colors.navy } };
+raw.getRange("A124:N126").format = { fill: colors.pale, font: { color: colors.grayText }, wrapText: true };
+raw.tables.add("A1:N121", true, "RawTelemetry120").style = "TableStyleMedium2";
+raw.freezePanes.freezeRows(1);
+raw.freezePanes.freezeColumns(3);
+setWidths(raw, [8, 24, 20, 24, 10, 10, 10, 14, 12, 12, 14, 12, 18, 90]);
+
+// 逐条计算明细：全部中间状态和公式均保留。
+const detailHeaders = ["序号", "报文ID", "上报时间", "压力P", "温度T", "容积V", "Tₖ", ...Array.from({ length: 9 }, (_, i) => `Z分项${i + 1}`), "Z", "分子", "分母", "Excel复算质量", "系统质量", "差值", "车辆状态", "充电状态", "运行模式", "燃料电池", "SOC", "仪表里程", "阶段", "上电60s通过", "下电60s通过", "停车充电", "状态组合有效", "参与计算", "排除原因", "区间类型", "系统区间号", "端点角色"];
+detail.getRange(`A1:${excelCol(detailHeaders.length)}1`).values = [detailHeaders];
+styleHeader(detail.getRange(`A1:${excelCol(detailHeaders.length)}1`));
+for (let row = 2; row <= 121; row++) {
+  const rawRow = row;
+  const index = row - 2;
+  detail.getRange(`A${row}:F${row}`).formulas = [[
+    `='原始报文120条'!A${rawRow}`,
+    `='原始报文120条'!B${rawRow}`,
+    `='原始报文120条'!C${rawRow}`,
+    `='原始报文120条'!I${rawRow}`,
+    `='原始报文120条'!J${rawRow}`,
+    `='原始报文120条'!K${rawRow}`,
+  ]];
+  detail.getRange(`G${row}`).formulas = [[`=E${row}+273.15`]];
+  for (let term = 0; term < 9; term++) {
+    const col = excelCol(8 + term);
+    const coeffRow = 19 + term;
+    detail.getRange(`${col}${row}`).formulas = [[`='参数与系数'!$B$${coeffRow}*POWER(100/$G${row},'参数与系数'!$C$${coeffRow})*POWER($D${row},'参数与系数'!$D$${coeffRow})`]];
+  }
+  detail.getRange(`Q${row}`).formulas = [[`=1+SUM(H${row}:P${row})`]];
+  detail.getRange(`R${row}`).formulas = [[`=D${row}*1000*0.00201588*F${row}`]];
+  detail.getRange(`S${row}`).formulas = [[`=8.314472*G${row}*Q${row}`]];
+  detail.getRange(`T${row}`).formulas = [[`=R${row}/S${row}`]];
+  detail.getRange(`U${row}`).values = [[systemMasses[index]]];
+  detail.getRange(`V${row}`).formulas = [[`=ABS(T${row}-U${row})`]];
+  detail.getRange(`W${row}:AB${row}`).formulas = [[
+    `='原始报文120条'!E${rawRow}`,
+    `='原始报文120条'!F${rawRow}`,
+    `='原始报文120条'!G${rawRow}`,
+    `='原始报文120条'!H${rawRow}`,
+    `='原始报文120条'!L${rawRow}`,
+    `='原始报文120条'!M${rawRow}`,
+  ]];
+  const phase = index < 40 ? "充电前运行" : index < 60 ? "停车充电" : index < 80 ? "充电后纯电" : "充电后混动";
+  detail.getRange(`AC${row}`).values = [[phase]];
+  detail.getRange(`AD${row}`).formulas = [[`=IF(OR(C${row}<'原始报文120条'!$C$2+TIME(0,0,'参数与系数'!$B$7),AND(C${row}>='原始报文120条'!$C$62,C${row}<'原始报文120条'!$C$62+TIME(0,0,'参数与系数'!$B$7))),"否","是")`]];
+  detail.getRange(`AE${row}`).formulas = [[`=IF(OR(AND(C${row}>'原始报文120条'!$C$42-TIME(0,0,'参数与系数'!$B$8),C${row}<='原始报文120条'!$C$42),AND(C${row}>'原始报文120条'!$C$121-TIME(0,0,'参数与系数'!$B$8),C${row}<='原始报文120条'!$C$121)),"否","是")`]];
+  detail.getRange(`AF${row}`).formulas = [[`=IF(AND(W${row}=2,X${row}=1),"是","否")`]];
+  detail.getRange(`AG${row}`).formulas = [[`=IF(OR(AND(Y${row}=1,Z${row}=0),AND(Y${row}=2,Z${row}=1)),"是","否")`]];
+  detail.getRange(`AH${row}`).formulas = [[`=IF(AND(AD${row}="是",AE${row}="是",AF${row}="否",AG${row}="是",W${row}=1),"是","否")`]];
+  detail.getRange(`AI${row}`).formulas = [[`=IF(AH${row}="是","",IF(AF${row}="是","停车充电区间",IF(AD${row}="否","上电后60秒稳定窗口",IF(AE${row}="否","下电前60秒稳定窗口",IF(W${row}<>1,"车辆非运行状态","运行模式与燃料电池状态不匹配")))))`]];
+  detail.getRange(`AJ${row}`).formulas = [[`=IF(AH${row}<>"是","",IF(AND(Y${row}=1,Z${row}=0),"PURE_ELECTRIC",IF(AND(Y${row}=2,Z${row}=1),"MIXED","")))`]];
+  const segment = index >= 6 && index <= 34 ? 1 : index >= 66 && index <= 79 ? 2 : index >= 80 && index <= 113 ? 3 : null;
+  detail.getRange(`AK${row}`).values = [[segment]];
+  let endpointRole = "";
+  if (index >= 6 && index <= 10) endpointRole = `区间1起始候选${index - 5}`;
+  else if (index >= 30 && index <= 34) endpointRole = `区间1结束候选${index - 29}`;
+  else if (index >= 66 && index <= 70) endpointRole = `区间2起始候选${index - 65}`;
+  else if (index >= 75 && index <= 79) endpointRole = `区间2结束候选${index - 74}`;
+  else if (index >= 80 && index <= 84) endpointRole = `区间3起始候选${index - 79}`;
+  else if (index >= 109 && index <= 113) endpointRole = `区间3结束候选${index - 108}`;
+  detail.getRange(`AL${row}`).values = [[endpointRole]];
+}
+styleBody(detail.getRange(`A2:AL121`));
+detail.getRange("C2:C121").format.numberFormat = "yyyy-mm-dd hh:mm:ss";
+detail.getRange("D2:V121").format.numberFormat = "0.000000";
+detail.getRange("AA2:AB121").format.numberFormat = "0.000000";
+detail.getRange("AH2:AH121").conditionalFormats.add("containsText", { text: "是", format: { fill: colors.green, font: { color: colors.greenText, bold: true } } });
+detail.getRange("AH2:AH121").conditionalFormats.add("containsText", { text: "否", format: { fill: colors.gray, font: { color: colors.grayText } } });
+detail.getRange("AF2:AF121").conditionalFormats.add("containsText", { text: "是", format: { fill: colors.orange, font: { color: colors.orangeText, bold: true } } });
+detail.getRange("AL2:AL121").conditionalFormats.add("notContainsBlanks", { format: { fill: colors.cyan, font: { color: colors.navy, bold: true } } });
+detail.tables.add("A1:AL121", true, "TelemetryCalculationDetail").style = "TableStyleMedium2";
+detail.freezePanes.freezeRows(1);
+detail.freezePanes.freezeColumns(3);
+setWidths(detail, [8, 24, 20, 11, 11, 11, 12, ...Array(9).fill(13), 12, 14, 14, 16, 16, 16, 10, 10, 10, 12, 11, 16, 16, 13, 13, 12, 14, 12, 28, 16, 12, 18]);
+
+// 每日与区间汇总，公式均追溯至逐条明细。
+styleTitle(summary, summary.getRange("A1:AB1"), "120条原始报文：每日氢耗与区间计算汇总");
+summary.getRange("A3:H3").values = [["统计日期", "原始样本数", "参与计算样本", "停车充电样本", "有效区间", "混动区间", "纯电区间", "质量状态"]];
+styleHeader(summary.getRange("A3:H3"));
+summary.getRange("A4").values = [["2026-08-26"]];
+summary.getRange("B4:H4").formulas = [[
+  `=COUNTA('原始报文120条'!$B$2:$B$121)`,
+  `=COUNTIF('样本计算明细'!$AH$2:$AH$121,"是")`,
+  `=COUNTIF('样本计算明细'!$AF$2:$AF$121,"是")`,
+  `=COUNTA($A$9:$A$11)`,
+  `=COUNTIF($B$9:$B$11,"MIXED")`,
+  `=COUNTIF($B$9:$B$11,"PURE_ELECTRIC")`,
+  `=IF(AND(B4=120,C4>=10,F4>=1),"OK","SUSPECT")`,
+]];
+styleBody(summary.getRange("A4:H4"));
+summary.getRange("H4").conditionalFormats.add("containsText", { text: "OK", format: { fill: colors.green, font: { color: colors.greenText, bold: true } } });
+
+summary.getRange("J3:Q3").values = [["物理耗氢(kg)", "SOC差值(百分点)", "电池净放电(kWh)", "电量折氢(kg)", "SOC平衡氢耗(kg)", "混动里程(km)", "物理百公里氢耗", "SOC平衡百公里氢耗"]];
+styleHeader(summary.getRange("J3:Q3"));
+summary.getRange("J4:Q4").formulas = [[
+  `=SUMIF($B$9:$B$11,"MIXED",$P$9:$P$11)`,
+  `=SUMIF($B$9:$B$11,"MIXED",$R$9:$R$11)-SUMIF($B$9:$B$11,"MIXED",$Q$9:$Q$11)`,
+  `=SUMIF($B$9:$B$11,"MIXED",$T$9:$T$11)`,
+  `=SUMIF($B$9:$B$11,"MIXED",$U$9:$U$11)`,
+  `=SUMIF($B$9:$B$11,"MIXED",$V$9:$V$11)`,
+  `=SUMIF($B$9:$B$11,"MIXED",$Y$9:$Y$11)`,
+  `=IF(O4>0,J4/O4*100,"")`,
+  `=IF(O4>0,N4/O4*100,"")`,
+]];
+styleBody(summary.getRange("J4:Q4"));
+summary.getRange("J4:Q4").format.numberFormat = "0.000000";
+
+summary.getRange("A7:AB7").values = [["区间", "类型", "有效样本", "起始候选行", "结束候选行", "起始报文ID", "结束报文ID", "起始时间", "结束时间", "起始压力", "结束压力", "起始温度", "结束温度", "起始质量", "结束质量", "物理耗氢", "起始SOC", "结束SOC", "SOC差值", "电池净放电", "电量折氢", "SOC平衡氢耗", "起始里程", "结束里程", "区间里程", "物理百公里", "SOC平衡百公里", "是否计入日氢耗"]];
+styleHeader(summary.getRange("A7:AB7"));
+const intervalSpecs = [
+  { row: 9, index: 1, type: "MIXED", sampleCount: 29, startRows: [8, 12], endRows: [32, 36] },
+  { row: 10, index: 2, type: "PURE_ELECTRIC", sampleCount: 14, startRows: [68, 72], endRows: [77, 81] },
+  { row: 11, index: 3, type: "MIXED", sampleCount: 34, startRows: [82, 86], endRows: [111, 115] },
+];
+for (const spec of intervalSpecs) {
+  const r = spec.row;
+  const [ss, se] = spec.startRows;
+  const [es, ee] = spec.endRows;
+  summary.getRange(`A${r}:E${r}`).values = [[spec.index, spec.type, spec.sampleCount, `${ss}:${se}`, `${es}:${ee}`]];
+  summary.getRange(`F${r}`).formulas = [[`=INDEX('样本计算明细'!$B$${ss}:$B$${se},MATCH(MEDIAN('样本计算明细'!$T$${ss}:$T$${se}),'样本计算明细'!$T$${ss}:$T$${se},0))`]];
+  summary.getRange(`G${r}`).formulas = [[`=INDEX('样本计算明细'!$B$${es}:$B$${ee},MATCH(MEDIAN('样本计算明细'!$T$${es}:$T$${ee}),'样本计算明细'!$T$${es}:$T$${ee},0))`]];
+  summary.getRange(`H${r}`).formulas = [[`=INDEX('样本计算明细'!$C$${ss}:$C$${se},MATCH(MEDIAN('样本计算明细'!$T$${ss}:$T$${se}),'样本计算明细'!$T$${ss}:$T$${se},0))`]];
+  summary.getRange(`I${r}`).formulas = [[`=INDEX('样本计算明细'!$C$${es}:$C$${ee},MATCH(MEDIAN('样本计算明细'!$T$${es}:$T$${ee}),'样本计算明细'!$T$${es}:$T$${ee},0))`]];
+  const sourceCols = { J: "D", K: "D", L: "E", M: "E", N: "T", O: "T", Q: "AA", R: "AA", W: "AB", X: "AB" };
+  for (const [targetCol, sourceCol] of Object.entries(sourceCols)) {
+    const isStart = ["J", "L", "N", "Q", "W"].includes(targetCol);
+    const rs = isStart ? ss : es;
+    const re = isStart ? se : ee;
+    summary.getRange(`${targetCol}${r}`).formulas = [[`=INDEX('样本计算明细'!$${sourceCol}$${rs}:$${sourceCol}$${re},MATCH(MEDIAN('样本计算明细'!$T$${rs}:$T$${re}),'样本计算明细'!$T$${rs}:$T$${re},0))`]];
+  }
+  summary.getRange(`P${r}`).formulas = [[spec.type === "MIXED" ? `=MAX(0,N${r}-O${r})` : `=0`]];
+  summary.getRange(`S${r}`).formulas = [[`=R${r}-Q${r}`]];
+  summary.getRange(`T${r}`).formulas = [[spec.type === "MIXED" ? `='参数与系数'!$B$5*(Q${r}-R${r})/100` : `=""`]];
+  summary.getRange(`U${r}`).formulas = [[spec.type === "MIXED" ? `=T${r}/'参数与系数'!$B$6` : `=""`]];
+  summary.getRange(`V${r}`).formulas = [[spec.type === "MIXED" ? `=P${r}+U${r}` : `=""`]];
+  summary.getRange(`Y${r}`).formulas = [[`=MAX(0,X${r}-W${r})`]];
+  summary.getRange(`Z${r}`).formulas = [[spec.type === "MIXED" ? `=IF(Y${r}>0,P${r}/Y${r}*100,"")` : `=""`]];
+  summary.getRange(`AA${r}`).formulas = [[spec.type === "MIXED" ? `=IF(Y${r}>0,V${r}/Y${r}*100,"")` : `=""`]];
+  summary.getRange(`AB${r}`).values = [[spec.type === "MIXED" ? "是" : "否（仅计纯电里程）"]];
+}
+styleBody(summary.getRange("A9:AB11"));
+summary.getRange("H9:I11").format.numberFormat = "yyyy-mm-dd hh:mm:ss";
+summary.getRange("J9:AA11").format.numberFormat = "0.000000";
+summary.getRange("B9:B11").conditionalFormats.add("containsText", { text: "MIXED", format: { fill: colors.green, font: { color: colors.greenText, bold: true } } });
+summary.getRange("B9:B11").conditionalFormats.add("containsText", { text: "PURE_ELECTRIC", format: { fill: colors.cyan, font: { color: colors.navy, bold: true } } });
+
+summary.getRange("A14:AB18").values = [
+  ["人工核验顺序", null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null],
+  ["1. 在“原始报文120条”核对每条车辆状态、充电状态、运行模式、压力、温度、SOC和仪表里程。", null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null],
+  ["2. 在“样本计算明细”逐项复核Tₖ、9个Z分项、压缩因子Z、分子、分母、质量及参与计算原因。", null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null],
+  ["3. 在本页核对每个区间首尾5条候选样本的中位质量、对应原始报文ID、物理耗氢、SOC修正和里程。", null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null],
+  ["4. 停车充电区间不计氢耗；充电结束后重新建立基线。纯电区间只累计纯电里程，不计入混动氢耗分母。", null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null],
+];
+for (let row = 14; row <= 18; row++) summary.getRange(`A${row}:AB${row}`).merge();
+summary.getRange("A14:AB14").format = { fill: colors.cyan, font: { bold: true, color: colors.navy } };
+summary.getRange("A15:AB18").format = { fill: colors.pale, font: { color: colors.grayText }, wrapText: true };
+summary.freezePanes.freezeRows(7);
+summary.freezePanes.freezeColumns(2);
+setWidths(summary, [8, 18, 12, 14, 14, 24, 24, 20, 20, 13, 13, 13, 13, 15, 15, 15, 13, 13, 13, 16, 14, 17, 15, 15, 14, 15, 17, 20]);
+
+// 说明首页，关键结果均跨表引用。
+styleTitle(guide, guide.getRange("A1:H1"), "氢耗算法120组人工验算底稿");
+guide.getRange("A3:H4").merge();
+guide.getRange("A3").values = [["用途：供人工使用原始字段逐步复核压力—质量换算、充电剔除、充电后重建基线、纯电/混动分段、SOC能量修正及最终日氢耗。样本为验算构造数据，不代表生产车辆真实报文。"]];
+guide.getRange("A3:H4").format = { fill: colors.pale, font: { color: colors.navy }, wrapText: true, verticalAlignment: "center" };
+guide.getRange("A6:H6").values = [["核验项目", "数量/结果", "口径", "核验项目", "数量/结果", "口径", "状态", "备注"]];
+styleHeader(guide.getRange("A6:H6"));
+guide.getRange("A7:H10").values = [
+  ["NIST压力质量样本", null, "12压力×10温度", "原始报文样本", null, "含停车充电和充电后重基线", null, ""],
+  ["NIST通过数", null, "系统值与Excel公式差≤1e-10", "参与计算样本", null, "上/下电窗口及充电剔除后", null, ""],
+  ["物理耗氢", null, "仅有效混动区间", "SOC平衡氢耗", null, "物理耗氢+电池净放电折氢", null, ""],
+  ["混动里程", null, "仅混动区间", "纯电里程", null, "只统计，不进入混动氢耗分母", null, ""],
+];
+guide.getRange("B7").formulas = [[`=COUNTA('120组压力质量验算'!$A$2:$A$121)`]];
+guide.getRange("E7").formulas = [[`=COUNTA('原始报文120条'!$A$2:$A$121)`]];
+guide.getRange("G7").formulas = [[`=IF(AND(B7=120,E7=120),"完整","不完整")`]];
+guide.getRange("B8").formulas = [[`=COUNTIF('120组压力质量验算'!$U$2:$U$121,"通过")`]];
+guide.getRange("E8").formulas = [[`='每日与区间汇总'!$C$4`]];
+guide.getRange("G8").formulas = [[`=IF(B8=120,"通过","不通过")`]];
+guide.getRange("B9").formulas = [[`='每日与区间汇总'!$J$4`]];
+guide.getRange("E9").formulas = [[`='每日与区间汇总'!$N$4`]];
+guide.getRange("G9").formulas = [[`='每日与区间汇总'!$H$4`]];
+guide.getRange("B10").formulas = [[`='每日与区间汇总'!$O$4`]];
+guide.getRange("E10").formulas = [[`=SUMIF('每日与区间汇总'!$B$9:$B$11,"PURE_ELECTRIC",'每日与区间汇总'!$Y$9:$Y$11)`]];
+guide.getRange("G10").values = [["可追溯"]];
+styleBody(guide.getRange("A7:H10"));
+guide.getRange("B9:B10").format.numberFormat = "0.000000";
+guide.getRange("E9:E10").format.numberFormat = "0.000000";
+guide.getRange("G7:G10").conditionalFormats.add("containsText", { text: "通过", format: { fill: colors.green, font: { color: colors.greenText, bold: true } } });
+guide.getRange("G7:G10").conditionalFormats.add("containsText", { text: "完整", format: { fill: colors.green, font: { color: colors.greenText, bold: true } } });
+guide.getRange("G7:G10").conditionalFormats.add("containsText", { text: "可追溯", format: { fill: colors.cyan, font: { color: colors.navy, bold: true } } });
+
+guide.getRange("A13:H13").values = [["工作表", "核验内容", "人工操作", "", "", "", "", ""]];
+styleHeader(guide.getRange("A13:H13"));
+const guideRows = [
+  ["参数与系数", "所有常量和9组NIST系数", "先确认车型参数，再复核公式引用"],
+  ["120组压力质量验算", "120组压力/温度的完整中间值和最终差异", "逐行查看Z分项→Z→分子/分母→质量→通过结果"],
+  ["原始报文120条", "车辆状态、充电状态、运行模式、压力、温度、SOC、里程及JSON", "核对原始字段，不修改计算列"],
+  ["样本计算明细", "每条报文换算质量、边界过滤、充电识别和区间归属", "按报文ID追踪排除原因及端点候选"],
+  ["每日与区间汇总", "端点中位数、分段耗氢、SOC修正、里程和百公里氢耗", "从最终结果反查起止报文ID"],
+];
+guide.getRange("A14:C18").values = guideRows;
+for (let row = 14; row <= 18; row++) guide.getRange(`C${row}:H${row}`).merge();
+styleBody(guide.getRange("A14:H18"));
+guide.getRange("A21:H21").merge();
+guide.getRange("A21").values = [["关键规则：停车充电 = 车辆状态为熄火(2) 且充电状态为停车充电(1)。充电期间不计算氢耗；充电结束后重新建立SOC、压力、温度和里程基线，仅对运行区间SOC变化进行氢气等效修正。"]];
+guide.getRange("A21:H21").format = { fill: colors.orange, font: { bold: true, color: colors.orangeText }, wrapText: true };
+guide.getRange("A21:H21").format.rowHeight = 48;
+setWidths(guide, [24, 18, 34, 24, 18, 34, 14, 28]);
+
+await fs.mkdir(previewDir, { recursive: true });
+
+const checks = {};
+for (const [name, range] of [
+  ["guide", "验算说明!A1:H21"],
+  ["parameters", "参数与系数!A1:F33"],
+  ["grid", "120组压力质量验算!A1:U12"],
+  ["raw", "原始报文120条!A1:N15"],
+  ["detail", "样本计算明细!A1:AL15"],
+  ["summary", "每日与区间汇总!A1:AB18"],
+]) {
+  const [sheetName, a1] = range.split("!");
+  const inspection = await workbook.inspect({ kind: "table", sheetId: sheetName, range: a1, include: "values,formulas", tableMaxRows: 20, tableMaxCols: 40, maxChars: 12000 });
+  checks[name] = inspection.ndjson;
+}
+
+const formulaErrors = await workbook.inspect({
+  kind: "match",
+  searchTerm: "#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A",
+  options: { useRegex: true, maxResults: 300 },
+  summary: "final formula error scan",
+  maxChars: 10000,
+});
+
+for (const sheetName of ["验算说明", "参数与系数", "120组压力质量验算", "原始报文120条", "样本计算明细", "每日与区间汇总"]) {
+  const preview = await workbook.render({ sheetName, autoCrop: "all", scale: 0.8, format: "png" });
+  await fs.writeFile(`${previewDir}/${sheetName}.png`, new Uint8Array(await preview.arrayBuffer()));
+}
+
+const xlsx = await SpreadsheetFile.exportXlsx(workbook);
+await xlsx.save(outputPath);
+await fs.writeFile(`${outputDir}/verification.json`, JSON.stringify({ outputPath, checks, formulaErrors: formulaErrors.ndjson }, null, 2));
+console.log(JSON.stringify({ outputPath, previewDir, formulaErrors: formulaErrors.ndjson }));

tmp/mileage-appeal-20260810/build_appeal.mjs

@@ -0,0 +1,446 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { SpreadsheetFile, Workbook } from "@oai/artifact-tool";
+
+const evidencePath = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/tmp/mileage-appeal-20260810/evidence.json";
+const outputDir = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/019fe9b9-eb60-7d22-8c0a-c70851a48083";
+const outputPath = path.join(outputDir, "15辆车里程核验申诉材料_GB32960日里程及原始报文.xlsx");
+const previewDir = path.join(outputDir, "preview");
+const data = JSON.parse(await fs.readFile(evidencePath, "utf8"));
+
+const workbook = Workbook.create();
+const summary = workbook.worksheets.add("申诉总览");
+const notes = workbook.worksheets.add("口径与证据说明");
+const vehicleSheets = new Map();
+for (const vehicle of data.vehicles) {
+  const sheetName = `${String(vehicle.seq).padStart(2, "0")}-${vehicle.plate}`;
+  vehicleSheets.set(vehicle.vin, { sheetName, sheet: workbook.worksheets.add(sheetName) });
+}
+
+const palette = {
+  navy: "#1F4E78",
+  blue: "#D9EAF7",
+  blue2: "#EAF3F8",
+  yellow: "#FFF2CC",
+  amber: "#FCE4D6",
+  mileageHeader: "#C65911",
+  mileageLight: "#FFF2CC",
+  mileageStrong: "#FFD966",
+  green: "#E2F0D9",
+  gray: "#E7E6E6",
+  dark: "#1F2937",
+  muted: "#5B6573",
+  border: "#B7C9D6",
+  white: "#FFFFFF",
+};
+
+const thinBorders = { preset: "all", style: "thin", color: palette.border };
+const titleFormat = {
+  fill: palette.navy,
+  font: { bold: true, color: palette.white, fontSize: 16, typeface: "Microsoft YaHei" },
+  horizontalAlignment: "left",
+  verticalAlignment: "center",
+};
+const sectionFormat = {
+  fill: palette.blue,
+  font: { bold: true, color: palette.dark, fontSize: 11, typeface: "Microsoft YaHei" },
+  horizontalAlignment: "left",
+  verticalAlignment: "center",
+  borders: thinBorders,
+};
+const headerFormat = {
+  fill: palette.navy,
+  font: { bold: true, color: palette.white, fontSize: 9, typeface: "Microsoft YaHei" },
+  horizontalAlignment: "center",
+  verticalAlignment: "center",
+  wrapText: true,
+  borders: thinBorders,
+};
+const labelFormat = {
+  fill: palette.blue2,
+  font: { bold: true, color: palette.dark, fontSize: 9, typeface: "Microsoft YaHei" },
+  horizontalAlignment: "left",
+  verticalAlignment: "center",
+  wrapText: true,
+  borders: thinBorders,
+};
+const valueFormat = {
+  font: { color: palette.dark, fontSize: 9, typeface: "Microsoft YaHei" },
+  verticalAlignment: "center",
+  wrapText: true,
+  borders: thinBorders,
+};
+
+function asDate(day) {
+  return new Date(`${day}T00:00:00Z`);
+}
+
+function addDays(day, count) {
+  const date = asDate(day);
+  date.setUTCDate(date.getUTCDate() + count);
+  return date.toISOString().slice(0, 10);
+}
+
+function calendarDays(start, end) {
+  const days = [];
+  for (let day = start; day <= end; day = addDays(day, 1)) days.push(day);
+  return days;
+}
+
+function absDelta(a, b) {
+  if (a == null || b == null || Number.isNaN(Number(a)) || Number.isNaN(Number(b))) return null;
+  return Math.abs(Number(a) - Number(b));
+}
+
+function rawRange(vehicle) {
+  const rows = vehicle.rawEvidence.filter((row) => row.status === "OK");
+  if (rows.length === 0) return "无";
+  return `${rows[0].day} 至 ${rows.at(-1).day}`;
+}
+
+function evidenceLevel(metric, raw) {
+  if (raw?.status === "OK") return "A-原始32960报文";
+  if (metric?.source_code === "legacy_lingniu_prod") return "C-历史日统计迁移（无RAW）";
+  if (metric) return "B-中台32960日统计（无RAW）";
+  return "D-无中台日记录";
+}
+
+function rowNote(metric, raw) {
+  const notes = [];
+  if (metric?.source_code === "legacy_lingniu_prod") notes.push("历史生产库 ln_vehicle_day_mileage 迁移记录，不是原始帧");
+  if (raw?.status === "OK" && !metric) notes.push("有原始报文，但中台日统计无记录");
+  if (raw?.status === "OK" && metric && absDelta(metric.latest_total_mileage_km, raw.parsedTotalMileageKm) > 0.1) {
+    notes.push("日统计日末值与本日最后可得RAW读数不一致，详见数据源/时间；可能涉及人工源选举或跨日延迟");
+  }
+  if (raw?.status !== "OK" && metric && metric.source_code !== "legacy_lingniu_prod") notes.push("有中台日统计，但当日未检出含仪表总里程的RAW帧");
+  if (!metric && raw?.status !== "OK") notes.push("当日无中台日记录，且现行RAW历史不可用或未检出");
+  return notes.join("；");
+}
+
+function setStandardSheet(sheet) {
+  sheet.showGridLines = false;
+  sheet.freezePanes.freezeRows(13);
+  sheet.freezePanes.freezeColumns(1);
+}
+
+for (const vehicle of data.vehicles) {
+  const { sheetName, sheet } = vehicleSheets.get(vehicle.vin);
+  setStandardSheet(sheet);
+  sheet.getRange("A1:P1").merge();
+  sheet.getRange("A1").values = [[`${vehicle.plate} 里程核验申诉明细`]];
+  sheet.getRange("A1:P1").format = titleFormat;
+  sheet.getRange("A1:P1").format.rowHeight = 30;
+
+  sheet.getRange("A2:P2").merge();
+  sheet.getRange("A2").values = [["核验口径：GB/T 32960 车辆仪表累计总里程；原始报文列保存完整HEX，点击单元格可在公式栏复制。相邻自然日均有RAW读数时才计算RAW日差。"]];
+  sheet.getRange("A2:P2").format = { fill: palette.yellow, font: { color: palette.dark, fontSize: 9, typeface: "Microsoft YaHei" }, wrapText: true, verticalAlignment: "center", borders: thinBorders };
+  sheet.getRange("A2:P2").format.rowHeight = 30;
+
+  sheet.getRange("A4:P6").format = valueFormat;
+  sheet.getRange("A4").values = [["车牌"]];
+  sheet.getRange("B4:C4").merge(); sheet.getRange("B4").values = [[vehicle.plate]];
+  sheet.getRange("D4").values = [["VIN"]];
+  sheet.getRange("E4:H4").merge(); sheet.getRange("E4").values = [[vehicle.vin]];
+  sheet.getRange("I4").values = [["车型"]];
+  sheet.getRange("J4:K4").merge(); sheet.getRange("J4").values = [[vehicle.model]];
+  sheet.getRange("L4").values = [["协议"]];
+  sheet.getRange("M4:P4").merge(); sheet.getRange("M4").values = [["GB32960（仪表累计总里程）"]];
+
+  sheet.getRange("A5").values = [["核验区间"]];
+  sheet.getRange("B5:C5").merge(); sheet.getRange("B5").values = [["2025-11-28 至 2026-07-31"]];
+  sheet.getRange("D5").values = [["原TBOX合计(km)"]];
+  sheet.getRange("E5:F5").merge(); sheet.getRange("E5").values = [[vehicle.sourceTboxKm]];
+  sheet.getRange("G5").values = [["第三方平台合计(km)"]];
+  sheet.getRange("H5:I5").merge(); sheet.getRange("H5").values = [[vehicle.platformKm]];
+  sheet.getRange("J5").values = [["原表损耗(km)"]];
+  sheet.getRange("K5:L5").merge(); sheet.getRange("K5").values = [[vehicle.lossKm]];
+  sheet.getRange("M5").values = [["原申诉里程(km)"]];
+  sheet.getRange("N5:P5").merge(); sheet.getRange("N5").values = [[vehicle.appealKm]];
+  sheet.getRange("E5:F5").format.numberFormat = "#,##0.0";
+  sheet.getRange("H5:I5").format.numberFormat = "#,##0.0";
+  sheet.getRange("K5:L5").format.numberFormat = "#,##0.0";
+  sheet.getRange("N5:P5").format.numberFormat = "#,##0.0";
+  sheet.getRange("K5:L5").format.fill = palette.yellow;
+
+  sheet.getRange("A6").values = [["异常标记"]];
+  sheet.getRange("B6:D6").merge(); sheet.getRange("B6").values = [[vehicle.anomaly]];
+  sheet.getRange("E6").values = [["原排查结论"]];
+  sheet.getRange("F6:P6").merge(); sheet.getRange("F6").values = [[vehicle.note]];
+  for (const address of ["A4", "A5", "A6", "D4", "D5", "E6", "G5", "I4", "J5", "L4", "M5"]) sheet.getRange(address).format = labelFormat;
+
+  sheet.getRange("A8:P8").format = valueFormat;
+  sheet.getRange("A8").values = [["原车辆统计合计(km)"]];
+  sheet.getRange("B8:C8").merge(); sheet.getRange("B8").values = [[vehicle.sourceTboxKm]];
+  sheet.getRange("D8").values = [["车辆数据中台统计合计(km)"]];
+  sheet.getRange("E8:F8").merge(); sheet.getRange("E8").formulas = [["=SUM(B14:B259)"]];
+  sheet.getRange("G8").values = [["中台日统计有值天数"]];
+  sheet.getRange("H8:I8").merge(); sheet.getRange("H8").formulas = [["=COUNT(B14:B259)"]];
+  sheet.getRange("J8").values = [["RAW仪表证据天数"]];
+  sheet.getRange("K8:L8").merge(); sheet.getRange("K8").formulas = [["=COUNT(F14:F259)"]];
+  sheet.getRange("M8").values = [["RAW证据日期范围"]];
+  sheet.getRange("N8:P8").merge(); sheet.getRange("N8").values = [[rawRange(vehicle)]];
+  for (const address of ["A8", "D8", "G8", "J8", "M8"]) sheet.getRange(address).format = labelFormat;
+  sheet.getRange("B8:C8").format.numberFormat = "#,##0.0";
+  sheet.getRange("E8:F8").format.numberFormat = "#,##0.0";
+  sheet.getRange("B8:C8").format.fill = palette.blue2;
+  sheet.getRange("E8:F8").format.fill = palette.mileageStrong;
+  sheet.getRange("E8:F8").format.font = { bold: true, color: "#7F6000", fontSize: 10, typeface: "Microsoft YaHei" };
+  sheet.getRange("A8:P8").format.rowHeight = 38;
+
+  sheet.getRange("A9").values = [["证据限制"]];
+  sheet.getRange("B9:P9").merge();
+  sheet.getRange("B9").values = [["现行TDengine RAW历史自2026-07-01起可查询；此前仅有历史生产库日统计迁移记录。材料已按A/B/C/D分级，未将统计记录伪称为原始报文。"]];
+  sheet.getRange("A9").format = labelFormat;
+  sheet.getRange("B9:P9").format = { ...valueFormat, fill: palette.amber };
+  sheet.getRange("A9:P9").format.rowHeight = 30;
+
+  sheet.getRange("A11:P11").merge();
+  sheet.getRange("A11").values = [["每日核验明细（完整日历）"]];
+  sheet.getRange("A11:P11").format = sectionFormat;
+
+  sheet.getRange("A12:D12").merge();
+  sheet.getRange("A12").values = [["车辆数据中台区间里程总计"]];
+  sheet.getRange("E12:F12").merge();
+  sheet.getRange("E12").formulas = [["=SUM(B14:B259)"]];
+  sheet.getRange("G12:P12").merge();
+  sheet.getRange("G12").values = [["计算范围：B14:B259（下方“中台当日里程(km)”列）"]];
+  sheet.getRange("A12:D12").format = {
+    ...headerFormat,
+    fill: palette.mileageHeader,
+    horizontalAlignment: "left",
+  };
+  sheet.getRange("E12:F12").format = {
+    ...valueFormat,
+    fill: palette.mileageStrong,
+    font: { bold: true, color: "#7F6000", fontSize: 11, typeface: "Microsoft YaHei" },
+    numberFormat: "#,##0.0",
+    horizontalAlignment: "right",
+  };
+  sheet.getRange("G12:P12").format = {
+    ...valueFormat,
+    fill: palette.mileageLight,
+    font: { color: palette.textMuted, fontSize: 9, typeface: "Microsoft YaHei" },
+  };
+  sheet.getRange("A12:P12").format.rowHeight = 30;
+
+  const headers = ["日期", "中台当日里程(km)", "中台日末仪表总里程(km)", "日统计数据源", "日统计来源端点", "RAW解析仪表总里程(km)", "RAW相邻日差(km)", "日统计-RAW差(km)", "证据等级", "报文事件时间", "中台接收时间", "RAW来源端点", "Event ID", "Frame ID", "原始报文大小(bytes)", "原始GB32960报文HEX（完整）"];
+  sheet.getRange("A13:P13").values = [headers];
+  sheet.getRange("A13:P13").format = headerFormat;
+  sheet.getRange("A13:P13").format.rowHeight = 42;
+
+  const metricByDay = new Map(vehicle.dailyMetrics.map((row) => [row.stat_date, row]));
+  const rawByDay = new Map(vehicle.rawEvidence.map((row) => [row.day, row]));
+  const days = calendarDays(data.period.start, data.period.end);
+  const rows = days.map((day) => {
+    const metric = metricByDay.get(day);
+    const raw = rawByDay.get(day);
+    return [
+      asDate(day),
+      metric?.daily_mileage_km ?? null,
+      metric?.latest_total_mileage_km ?? null,
+      metric ? `${metric.platform_name || ""} / ${metric.source_code || ""}` : "",
+      metric?.latest_source_endpoint ?? "",
+      raw?.status === "OK" ? raw.parsedTotalMileageKm : null,
+      null,
+      null,
+      evidenceLevel(metric, raw),
+      raw?.status === "OK" ? raw.eventTime : "",
+      raw?.status === "OK" ? raw.receivedAt : "",
+      raw?.status === "OK" ? raw.sourceEndpoint : "",
+      raw?.status === "OK" ? raw.eventId : "",
+      raw?.status === "OK" ? raw.frameId : "",
+      raw?.status === "OK" ? raw.rawSizeBytes : null,
+      raw?.status === "OK" ? raw.rawHex : "",
+    ];
+  });
+  sheet.getRange("A14:P259").values = rows;
+  sheet.getRange("A14:A259").format.numberFormat = "yyyy-mm-dd";
+  sheet.getRange("B14:C259").format.numberFormat = "#,##0.0";
+  sheet.getRange("F14:H259").format.numberFormat = "#,##0.0";
+  sheet.getRange("O14:O259").format.numberFormat = "#,##0";
+  sheet.getRange("A14:P259").format = {
+    font: { color: palette.dark, fontSize: 8, typeface: "Microsoft YaHei" },
+    verticalAlignment: "center",
+    borders: { insideHorizontal: { style: "thin", color: "#D9E2E8" }, bottom: { style: "thin", color: palette.border } },
+  };
+  sheet.getRange("A14:A259").format.horizontalAlignment = "center";
+  sheet.getRange("B14:C259").format.horizontalAlignment = "right";
+  sheet.getRange("F14:H259").format.horizontalAlignment = "right";
+  sheet.getRange("I14:O259").format.wrapText = true;
+  sheet.getRange("P14:P259").format = { font: { color: palette.muted, fontSize: 7, typeface: "Consolas" }, wrapText: true, verticalAlignment: "top" };
+  sheet.getRange("A14:P259").format.rowHeight = 34;
+  sheet.getRange("G14").values = [[null]];
+  for (let row = 15; row <= 259; row += 1) {
+    sheet.getRange(`G${row}`).formulas = [[`=IF(OR(F${row}="",F${row - 1}=""),"",F${row}-F${row - 1})`]];
+  }
+  for (let row = 14; row <= 259; row += 1) {
+    sheet.getRange(`H${row}`).formulas = [[`=IF(OR(C${row}="",F${row}=""),"",C${row}-F${row})`]];
+  }
+
+  sheet.getRange("I14:I259").conditionalFormats.add("containsText", { text: "A-", format: { fill: palette.green, font: { color: "#375623", bold: true } } });
+  sheet.getRange("I14:I259").conditionalFormats.add("containsText", { text: "C-", format: { fill: palette.yellow, font: { color: "#7F6000" } } });
+  sheet.getRange("I14:I259").conditionalFormats.add("containsText", { text: "D-", format: { fill: palette.gray, font: { color: palette.muted } } });
+  sheet.getRange("H14:H259").conditionalFormats.addCustom("=ABS($H14)>0.1", { fill: palette.amber, font: { color: "#9C0006", bold: true } });
+
+  const table = sheet.tables.add("A13:P259", true, `Vehicle${String(vehicle.seq).padStart(2, "0")}Evidence`);
+  table.style = "TableStyleMedium2";
+  table.showBandedColumns = false;
+  table.showFilterButton = true;
+  sheet.getRange("B13").format = { ...headerFormat, fill: palette.mileageHeader };
+  sheet.getRange("B14:B259").format.fill = palette.mileageLight;
+  sheet.getRange("B14:B259").conditionalFormats.add("cellIs", {
+    operator: "greaterThan",
+    formula: 0,
+    format: { fill: palette.mileageStrong, font: { bold: true, color: "#7F6000" } },
+  });
+
+  const widths = [12, 17, 20, 24, 26, 20, 17, 18, 25, 20, 20, 22, 34, 34, 14, 72];
+  for (let col = 0; col < widths.length; col += 1) sheet.getRangeByIndexes(0, col, 259, 1).format.columnWidth = widths[col];
+}
+
+summary.showGridLines = false;
+summary.freezePanes.freezeRows(4);
+summary.getRange("A1:P1").merge();
+summary.getRange("A1").values = [["15辆车里程核验申诉总览"]];
+summary.getRange("A1:P1").format = titleFormat;
+summary.getRange("A1:P1").format.rowHeight = 32;
+summary.getRange("A2:P2").merge();
+summary.getRange("A2").values = [["结论：车辆数据中台GB32960日里程复核合计与原异常表TBOX区间里程逐车一致；第三方平台合计显著偏低。RAW原始帧按现有可查历史提供，早期记录已明确标注证据限制。"]];
+summary.getRange("A2:P2").format = { fill: palette.green, font: { bold: true, color: "#375623", fontSize: 10, typeface: "Microsoft YaHei" }, wrapText: true, verticalAlignment: "center", borders: thinBorders };
+summary.getRange("A2:P2").format.rowHeight = 34;
+
+summary.getRange("A3:B3").merge(); summary.getRange("A3").values = [["全部15辆车·原车辆统计(km)"]];
+summary.getRange("C3").formulas = [["=F20"]];
+summary.getRange("D3:E3").merge(); summary.getRange("D3").values = [["车辆数据中台统计(km)"]];
+summary.getRange("F3").formulas = [["=G20"]];
+summary.getRange("G3:H3").merge(); summary.getRange("G3").values = [["第三方平台统计(km)"]];
+summary.getRange("I3").formulas = [["=H20"]];
+summary.getRange("J3:K3").merge(); summary.getRange("J3").values = [["平台漏计差异(km)"]];
+summary.getRange("L3").formulas = [["=I20"]];
+summary.getRange("M3:N3").merge(); summary.getRange("M3").values = [["RAW仪表证据(天)"]];
+summary.getRange("O3:P3").merge(); summary.getRange("O3").formulas = [["=M20"]];
+for (const address of ["A3:B3", "D3:E3", "G3:H3", "J3:K3", "M3:N3"]) summary.getRange(address).format = labelFormat;
+for (const address of ["C3", "F3", "I3", "L3", "O3:P3"]) summary.getRange(address).format = { ...valueFormat, fill: palette.mileageLight, font: { bold: true, color: "#7F6000", fontSize: 10, typeface: "Microsoft YaHei" }, horizontalAlignment: "right" };
+summary.getRange("C3:L3").format.numberFormat = "#,##0.0";
+summary.getRange("O3:P3").format.numberFormat = "#,##0";
+summary.getRange("A3:P3").format.rowHeight = 34;
+
+const summaryHeaders = ["序号", "车型", "车牌", "VIN", "核验区间", "原TBOX合计(km)", "中台复核合计(km)", "第三方平台合计(km)", "损耗(km)", "损耗率", "申诉里程(km)", "日统计天数", "RAW证据天数", "RAW证据范围", "核验结论", "原排查结论"];
+summary.getRange("A4:P4").values = [summaryHeaders];
+summary.getRange("A4:P4").format = headerFormat;
+summary.getRange("A4:P4").format.rowHeight = 40;
+const summaryRows = data.vehicles.map((vehicle) => [
+  vehicle.seq, vehicle.model, vehicle.plate, vehicle.vin, "2025-11-28 至 2026-07-31", vehicle.sourceTboxKm, null, vehicle.platformKm, null, null, vehicle.appealKm, null, null, rawRange(vehicle), null, vehicle.note,
+]);
+summary.getRange("A5:P19").values = summaryRows;
+for (let index = 0; index < data.vehicles.length; index += 1) {
+  const row = 5 + index;
+  const { sheetName } = vehicleSheets.get(data.vehicles[index].vin);
+  summary.getRange(`G${row}`).formulas = [[`='${sheetName}'!E8`]];
+  summary.getRange(`I${row}`).formulas = [[`=F${row}-H${row}`]];
+  summary.getRange(`J${row}`).formulas = [[`=IF(F${row}=0,"",I${row}/F${row})`]];
+  summary.getRange(`L${row}`).formulas = [[`='${sheetName}'!H8`]];
+  summary.getRange(`M${row}`).formulas = [[`='${sheetName}'!K8`]];
+  summary.getRange(`O${row}`).formulas = [[`=IF(ABS(G${row}-F${row})<0.1,"中台复核合计与原TBOX一致","需复核中台合计")`]];
+}
+summary.getRange("A20:E20").merge(); summary.getRange("A20").values = [["合计"]];
+summary.getRange("F20").formulas = [["=SUM(F5:F19)"]];
+summary.getRange("G20").formulas = [["=SUM(G5:G19)"]];
+summary.getRange("H20").formulas = [["=SUM(H5:H19)"]];
+summary.getRange("I20").formulas = [["=SUM(I5:I19)"]];
+summary.getRange("J20").formulas = [["=IF(F20=0,\"\",I20/F20)"]];
+summary.getRange("K20").formulas = [["=SUM(K5:K19)"]];
+summary.getRange("L20").formulas = [["=SUM(L5:L19)"]];
+summary.getRange("M20").formulas = [["=SUM(M5:M19)"]];
+summary.getRange("N20:P20").merge(); summary.getRange("N20").values = [["15车合计；RAW证据为现行历史可查询范围"]];
+summary.getRange("A20:P20").format = { fill: palette.blue, font: { bold: true, color: palette.dark, fontSize: 9, typeface: "Microsoft YaHei" }, borders: thinBorders, verticalAlignment: "center", wrapText: true };
+summary.getRange("A5:P19").format = { font: { color: palette.dark, fontSize: 9, typeface: "Microsoft YaHei" }, verticalAlignment: "center", wrapText: true, borders: { insideHorizontal: { style: "thin", color: "#D9E2E8" }, bottom: { style: "thin", color: palette.border } } };
+summary.getRange("F5:I20").format.numberFormat = "#,##0.0";
+summary.getRange("J5:J20").format.numberFormat = "0.00%";
+summary.getRange("K5:K20").format.numberFormat = "#,##0.0";
+summary.getRange("L5:M20").format.numberFormat = "#,##0";
+summary.getRange("I5:I19").format.fill = palette.yellow;
+summary.getRange("O5:O19").conditionalFormats.add("containsText", { text: "一致", format: { fill: palette.green, font: { color: "#375623", bold: true } } });
+const summaryTable = summary.tables.add("A4:P19", true, "AppealSummary");
+summaryTable.style = "TableStyleMedium2";
+summaryTable.showFilterButton = true;
+const summaryWidths = [8, 9, 14, 22, 22, 16, 18, 18, 15, 12, 16, 13, 14, 24, 26, 54];
+for (let col = 0; col < summaryWidths.length; col += 1) summary.getRangeByIndexes(0, col, 20, 1).format.columnWidth = summaryWidths[col];
+summary.getRange("A5:P19").format.rowHeight = 42;
+
+notes.showGridLines = false;
+notes.getRange("A1:H1").merge();
+notes.getRange("A1").values = [["核验口径与证据说明"]];
+notes.getRange("A1:H1").format = titleFormat;
+notes.getRange("A1:H1").format.rowHeight = 32;
+notes.getRange("A3:H3").merge(); notes.getRange("A3").values = [["1. 核验口径"]]; notes.getRange("A3:H3").format = sectionFormat;
+notes.getRange("A4:B8").values = [
+  ["协议", "GB/T 32960"],
+  ["仪表总里程字段", "gb32960.vehicle.total_mileage_km"],
+  ["仪表总里程含义", "车辆仪表盘累计总里程，单位 km；不同协议累计值不可拼接。"],
+  ["中台当日里程", "生产 vehicle_daily_mileage 的 GB32960 日统计值；本材料逐车求和后与原异常表TBOX合计核对。"],
+  ["RAW相邻日差", "仅相邻两个自然日都存在RAW仪表读数时计算；缺任一日则留空，不把跨日缺口跳变塞进单日。"],
+];
+notes.getRange("A4:A8").format = labelFormat;
+notes.getRange("B4:H8").merge(true);
+notes.getRange("B4:H8").format = valueFormat;
+notes.getRange("A10:H10").merge(); notes.getRange("A10").values = [["2. 证据分级"]]; notes.getRange("A10:H10").format = sectionFormat;
+notes.getRange("A11:B14").values = [
+  ["A-原始32960报文", "中台TDengine保存的完整GB32960十六进制报文，且解析结果明确包含仪表总里程字段。"],
+  ["B-中台32960日统计", "中台日统计存在，但当日未检出含仪表总里程的RAW帧。"],
+  ["C-历史日统计迁移", "来自历史生产库 lingniu_prod.ln_vehicle_day_mileage 的迁移记录，不是原始帧。"],
+  ["D-无中台日记录", "当日中台日统计无记录，且现行RAW历史不可用或未检出。"],
+];
+notes.getRange("A11:A14").format = labelFormat;
+notes.getRange("B11:H14").merge(true);
+notes.getRange("B11:H14").format = valueFormat;
+notes.getRange("A11:H11").format.fill = palette.green;
+notes.getRange("A13:H13").format.fill = palette.yellow;
+notes.getRange("A14:H14").format.fill = palette.gray;
+
+notes.getRange("A16:H16").merge(); notes.getRange("A16").values = [["3. 数据来源与限制"]]; notes.getRange("A16:H16").format = sectionFormat;
+notes.getRange("A17:B21").values = [
+  ["原异常表", "/Users/lingniu/Documents/里程异常统计表_20251128-20260731-回复.xlsx"],
+  ["中台日统计API", "http://115.29.187.205:20200/api/stats/daily-metrics"],
+  ["中台RAW历史API", "http://115.29.187.205:20200/api/history/raw-frames"],
+  ["RAW可查范围", "本次提取范围2026-07-01至2026-07-31；15车共取得334个含仪表总里程字段的完整原始帧。"],
+  ["重要限制", "2026-07-01之前现行TDengine没有可查询RAW历史；只能提供历史生产库日统计迁移记录。对外申诉时应如实说明，并向原TSP/车厂补调更早期原始报文归档。"],
+];
+notes.getRange("A17:A21").format = labelFormat;
+notes.getRange("B17:H21").merge(true);
+notes.getRange("B17:H21").format = valueFormat;
+notes.getRange("A21:H21").format.fill = palette.amber;
+
+notes.getRange("A23:H23").merge(); notes.getRange("A23").values = [["4. 使用建议"]]; notes.getRange("A23:H23").format = sectionFormat;
+notes.getRange("A24:H27").values = [
+  ["① 先提交“申诉总览”，证明15车中台GB32960日里程合计与原TBOX合计一致。", null, null, null, null, null, null, null],
+  ["② 每车附对应Sheet，重点引用A类RAW证据、事件时间、接收时间和完整HEX。", null, null, null, null, null, null, null],
+  ["③ 对第三方缺失日，用完整日历中的D级空缺、前后仪表累计变化和原排查结论说明漏传。", null, null, null, null, null, null, null],
+  ["④ 申诉若要求全区间逐日原始报文，需由原TSP/车厂补调2026-07-01之前归档；本材料未虚构缺失证据。", null, null, null, null, null, null, null],
+];
+for (let row = 24; row <= 27; row += 1) notes.getRange(`A${row}:H${row}`).merge();
+notes.getRange("A24:H27").format = { ...valueFormat, fill: palette.blue2 };
+notes.getRange("A4:H27").format.rowHeight = 30;
+notes.getRange("A1:A27").format.columnWidth = 22;
+for (let col = 1; col < 8; col += 1) notes.getRangeByIndexes(0, col, 27, 1).format.columnWidth = 18;
+
+await fs.mkdir(outputDir, { recursive: true });
+await fs.mkdir(previewDir, { recursive: true });
+
+const inspection = {};
+inspection.summary = (await workbook.inspect({ kind: "table", range: "申诉总览!A1:P20", include: "values,formulas", tableMaxRows: 24, tableMaxCols: 16, maxChars: 22000 })).ndjson;
+inspection.formulaErrors = (await workbook.inspect({ kind: "match", searchTerm: "#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A", options: { useRegex: true, maxResults: 300 }, summary: "final formula error scan" })).ndjson;
+await fs.writeFile(path.join(outputDir, "verification.ndjson"), `${inspection.summary}\n${inspection.formulaErrors}\n`, "utf8");
+
+const previewSheets = ["申诉总览", "口径与证据说明", ...data.vehicles.map((vehicle) => vehicleSheets.get(vehicle.vin).sheetName)];
+for (let index = 0; index < previewSheets.length; index += 1) {
+  const sheetName = previewSheets[index];
+  const range = sheetName === "申诉总览" ? "A1:P20" : sheetName === "口径与证据说明" ? "A1:H27" : "A1:P24";
+  const preview = await workbook.render({ sheetName, range, scale: 1, format: "png" });
+  const safeName = sheetName.replaceAll(/[\\/:*?\[\]]/g, "_");
+  await fs.writeFile(path.join(previewDir, `${String(index + 1).padStart(2, "0")}-${safeName}.png`), new Uint8Array(await preview.arrayBuffer()));
+}
+
+const output = await SpreadsheetFile.exportXlsx(workbook);
+await output.save(outputPath);
+console.log(JSON.stringify({ outputPath, sheets: previewSheets.length, previewDir }, null, 2));

tmp/mileage-appeal-20260810/collect_evidence.mjs

@@ -0,0 +1,158 @@
+import fs from "node:fs/promises";
+
+const baseUrl = "http://115.29.187.205:20200";
+const outputPath = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/tmp/mileage-appeal-20260810/evidence.json";
+const vehicles = [
+  { seq: 1, model: "18T", plate: "粤A05995F", vin: "LNXNEGRR7SR321370", sourceTboxKm: 26180.6, platformKm: 4208.9, lossKm: 21971.7, lossRatePct: 83.92, anomaly: "里程损失，tbox异常", appealKm: 41497.1, note: "区间内仪表盘开始里程是576.6,结束里程是41497.1,差值40920.5,小于申诉里程;2026-05-11到2026-07-28间的数据没上传,仪表盘里程差了36306.6,2025-12-25到2026-01-01间还存在里程跳变导致里程缺失" },
+  { seq: 2, model: "18T", plate: "粤A05839F", vin: "LNXNEGRR8SR321376", sourceTboxKm: 41030.3, platformKm: 19763.6, lossKm: 21266.7, lossRatePct: 51.83, anomaly: "里程损失", appealKm: 41030.3, note: "存在很多数据缺失导致的里程跳变,统计里程缺失,特别是7月份仪表里程从7月1号的16341.2到7月31号的41848.9,相差25507.7,计算的总里程只有8470" },
+  { seq: 3, model: "18T", plate: "粤A09369F", vin: "LNXNEGRR6SR321473", sourceTboxKm: 40381.5, platformKm: 24994.0, lossKm: 15387.5, lossRatePct: 38.11, anomaly: "里程损失", appealKm: 40381.5, note: "存在很多数据缺失导致的里程跳变,统计里程缺失" },
+  { seq: 4, model: "18T", plate: "粤A06658F", vin: "LNXNEGRR5SR321397", sourceTboxKm: 52386.5, platformKm: 33064.5, lossKm: 19322.0, lossRatePct: 36.88, anomaly: "里程损失", appealKm: 52386.5, note: "存在很多数据缺失导致的里程跳变,统计里程缺失" },
+  { seq: 5, model: "18T", plate: "粤A05700F", vin: "LNXNEGRR8SR321393", sourceTboxKm: 60054.3, platformKm: 41352.9, lossKm: 18701.4, lossRatePct: 31.14, anomaly: "里程损失", appealKm: 60054.3, note: "存在很多数据缺失导致的里程跳变,统计里程缺失" },
+  { seq: 6, model: "18T", plate: "粤A05906F", vin: "LNXNEGRR2SR319462", sourceTboxKm: 37216.8, platformKm: 26711.4, lossKm: 10505.4, lossRatePct: 28.23, anomaly: "里程损失", appealKm: 37216.8, note: "最新数据只到2026-06-30,仪表盘最后里程为28638.5,没有7月份的数据;也存在很多数据缺失导致的里程缺失,例如2026-03-26到2026-04-01,2026-04-21到2026-05-01间没上传数据" },
+  { seq: 7, model: "4.5T", plate: "粤AGP9346", vin: "LB9A32A28R0LS1722", sourceTboxKm: 32337.2, platformKm: 28685.4, lossKm: 3651.8, lossRatePct: 11.29, anomaly: "里程损失", appealKm: 32337.2, note: "存在很多数据缺失导致的里程跳变,统计里程缺失" },
+  { seq: 8, model: "4.5T", plate: "粤AGP2017", vin: "LB9A32A28R0LS1445", sourceTboxKm: 48164.9, platformKm: 44357.1, lossKm: 3807.8, lossRatePct: 7.91, anomaly: "里程损失", appealKm: 48164.9, note: "存在很多数据缺失导致的里程跳变,统计里程缺失,而且区间内最后的仪表里程是2026-07-31的47337.5,小于申诉里程" },
+  { seq: 9, model: "4.5T", plate: "粤AGP5165", vin: "LB9A32A25R0LS1385", sourceTboxKm: 32906.4, platformKm: 30302.3, lossKm: 2604.1, lossRatePct: 7.91, anomaly: "里程损失", appealKm: 32906.4, note: "存在很多数据缺失导致的里程跳变,统计里程缺失,而且区间内最后的仪表里程是2026-07-30的31994.6,2026-07-31没有数据上传" },
+  { seq: 10, model: "4.5T", plate: "粤AGP4355", vin: "LB9A32A26R0LS1606", sourceTboxKm: 55151.0, platformKm: 51525.8, lossKm: 3625.2, lossRatePct: 6.57, anomaly: "里程损失", appealKm: 55151.0, note: "区间内仪表盘开始里程是1898.6,结束里程是55229.6,差值53331,小于申诉里程,也存在很多数据缺失导致的里程缺失" },
+  { seq: 11, model: "4.5T", plate: "粤AGP5646", vin: "LB9A32A22R0LS1702", sourceTboxKm: 39935.0, platformKm: 37319.8, lossKm: 2615.2, lossRatePct: 6.55, anomaly: "里程损失", appealKm: 39935.0, note: "存在很多数据缺失导致的里程跳变,统计里程缺失" },
+  { seq: 12, model: "4.5T", plate: "粤AGP3692", vin: "LB9A32A27R0LS1727", sourceTboxKm: 64195.0, platformKm: 60242.6, lossKm: 3952.4, lossRatePct: 6.16, anomaly: "里程损失", appealKm: 64195.0, note: "存在很多数据缺失导致的里程跳变,统计里程缺失" },
+  { seq: 13, model: "4.5T", plate: "粤AGP9782", vin: "LB9A32A28R0LS1705", sourceTboxKm: 50216.4, platformKm: 47123.8, lossKm: 3092.6, lossRatePct: 6.16, anomaly: "里程损失", appealKm: 50216.4, note: "存在很多数据缺失导致的里程跳变,统计里程缺失,如:2026-05-21数据缺失导致里程少了1300多" },
+  { seq: 14, model: "4.5T", plate: "粤AGP3027", vin: "LB9A32A22R0LS1599", sourceTboxKm: 31180.9, platformKm: 29260.1, lossKm: 1920.8, lossRatePct: 6.16, anomaly: "里程损失", appealKm: 31180.9, note: "区间内仪表盘开始里程是933.5,结束里程是31245.3,差值30311.8,小于申诉里程,也存在一些数据缺失导致的里程跳变,统计里程缺失" },
+  { seq: 15, model: "4.5T", plate: "粤AGP9751", vin: "LB9A32A28R0LS1574", sourceTboxKm: 17944.6, platformKm: 16861.0, lossKm: 1083.6, lossRatePct: 6.04, anomaly: "里程损失", appealKm: 17944.6, note: "区间内仪表盘开始里程是205.2,结束里程是17796.8,差值17591.6,小于申诉里程,也存在一些数据缺失导致的里程缺失" },
+];
+
+function dateString(date) {
+  return date.toISOString().slice(0, 10);
+}
+
+function addDays(day, count) {
+  const date = new Date(`${day}T00:00:00Z`);
+  date.setUTCDate(date.getUTCDate() + count);
+  return dateString(date);
+}
+
+function dateRange(start, end) {
+  const out = [];
+  for (let day = start; day <= end; day = addDays(day, 1)) out.push(day);
+  return out;
+}
+
+async function fetchJson(url, attempts = 4) {
+  let lastError;
+  for (let attempt = 1; attempt <= attempts; attempt += 1) {
+    try {
+      const response = await fetch(url, { signal: AbortSignal.timeout(30000) });
+      if (!response.ok) throw new Error(`${response.status} ${response.statusText}`);
+      return await response.json();
+    } catch (error) {
+      lastError = error;
+      if (attempt < attempts) await new Promise((resolve) => setTimeout(resolve, 250 * attempt));
+    }
+  }
+  throw lastError;
+}
+
+async function mapConcurrent(items, concurrency, worker) {
+  const results = new Array(items.length);
+  let cursor = 0;
+  async function run() {
+    while (true) {
+      const index = cursor;
+      cursor += 1;
+      if (index >= items.length) return;
+      results[index] = await worker(items[index], index);
+    }
+  }
+  await Promise.all(Array.from({ length: Math.min(concurrency, items.length) }, run));
+  return results;
+}
+
+async function fetchDaily(vehicle) {
+  const params = new URLSearchParams({
+    vin: vehicle.vin,
+    protocol: "GB32960",
+    dateFrom: "2025-11-28",
+    dateTo: "2026-07-31",
+    limit: "500",
+    includeTotal: "true",
+  });
+  const data = await fetchJson(`${baseUrl}/api/stats/daily-metrics?${params}`);
+  return data.items ?? [];
+}
+
+async function fetchRawEvidence({ vehicle, day }) {
+  const params = new URLSearchParams({
+    protocol: "GB32960",
+    vin: vehicle.vin,
+    dateFrom: `${day} 00:00:00`,
+    dateTo: `${addDays(day, 1)} 00:00:00`,
+    orderBy: "eventTime",
+    limit: "20",
+    includeFields: "true",
+    includePayload: "true",
+    fields: "gb32960.vehicle.total_mileage_km",
+  });
+  let data = await fetchJson(`${baseUrl}/api/history/raw-frames?${params}`);
+  let evidence = (data.items ?? []).find((item) => item?.parsed_fields?.["gb32960.vehicle.total_mileage_km"] != null && String(item.event_time ?? "").startsWith(day));
+  if (!evidence && (data.items ?? []).length === 20) {
+    params.set("limit", "100");
+    data = await fetchJson(`${baseUrl}/api/history/raw-frames?${params}`);
+    evidence = (data.items ?? []).find((item) => item?.parsed_fields?.["gb32960.vehicle.total_mileage_km"] != null && String(item.event_time ?? "").startsWith(day));
+  }
+  if (!evidence) return { day, status: "NO_RAW_ODOMETER_FRAME" };
+  return {
+    day,
+    status: "OK",
+    ts: evidence.ts ?? "",
+    eventTime: evidence.event_time ?? "",
+    receivedAt: evidence.received_at ?? "",
+    frameId: evidence.frame_id ?? "",
+    eventId: evidence.event_id ?? "",
+    messageIdHex: evidence.message_id_hex ?? "",
+    rawSizeBytes: evidence.raw_size_bytes ?? null,
+    rawHex: evidence.raw_hex ?? "",
+    parseStatus: evidence.parse_status ?? "",
+    parseError: evidence.parse_error ?? "",
+    sourceEndpoint: evidence.source_endpoint ?? "",
+    parsedTotalMileageKm: Number(evidence.parsed_fields["gb32960.vehicle.total_mileage_km"]),
+  };
+}
+
+const dailyLists = await mapConcurrent(vehicles, 6, fetchDaily);
+const rawDays = dateRange("2026-07-01", "2026-07-31");
+const rawTasks = vehicles.flatMap((vehicle) => rawDays.map((day) => ({ vehicle, day })));
+let completed = 0;
+const rawResults = await mapConcurrent(rawTasks, 10, async (task) => {
+  const result = await fetchRawEvidence(task);
+  completed += 1;
+  if (completed % 50 === 0 || completed === rawTasks.length) console.log(`raw evidence ${completed}/${rawTasks.length}`);
+  return { vin: task.vehicle.vin, ...result };
+});
+
+const byVinRaw = new Map();
+for (const item of rawResults) {
+  if (!byVinRaw.has(item.vin)) byVinRaw.set(item.vin, []);
+  byVinRaw.get(item.vin).push(item);
+}
+
+const result = {
+  generatedAt: new Date().toISOString(),
+  baseUrl,
+  period: { start: "2025-11-28", end: "2026-07-31" },
+  protocol: "GB32960",
+  parsedMileageField: "gb32960.vehicle.total_mileage_km",
+  rawEvidenceAvailability: { start: "2026-07-01", end: "2026-07-31", note: "现行TDengine RAW历史自2026-07-01起；此前中台仅保留历史生产库日统计迁移记录，不能伪称原始帧。" },
+  vehicles: vehicles.map((vehicle, index) => ({
+    ...vehicle,
+    dailyMetrics: dailyLists[index],
+    rawEvidence: (byVinRaw.get(vehicle.vin) ?? []).sort((a, b) => a.day.localeCompare(b.day)),
+  })),
+};
+
+await fs.writeFile(outputPath, JSON.stringify(result, null, 2), "utf8");
+console.log(JSON.stringify({
+  outputPath,
+  vehicles: result.vehicles.length,
+  dailyRows: result.vehicles.reduce((sum, item) => sum + item.dailyMetrics.length, 0),
+  rawEvidenceRows: result.vehicles.reduce((sum, item) => sum + item.rawEvidence.filter((row) => row.status === "OK").length, 0),
+  rawMissingDays: result.vehicles.reduce((sum, item) => sum + item.rawEvidence.filter((row) => row.status !== "OK").length, 0),
+}, null, 2));

tmp/mileage-appeal-20260810/inspect_source.mjs

@@ -0,0 +1,51 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const inputPath = "/Users/lingniu/Documents/里程异常统计表_20251128-20260731-回复.xlsx";
+const outputDir = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/tmp/mileage-appeal-20260810/source-preview";
+await fs.mkdir(outputDir, { recursive: true });
+
+const input = await FileBlob.load(inputPath);
+const workbook = await SpreadsheetFile.importXlsx(input);
+
+const overview = await workbook.inspect({
+  kind: "workbook,sheet,table,drawing",
+  maxChars: 20000,
+  tableMaxRows: 12,
+  tableMaxCols: 20,
+  tableMaxCellChars: 180,
+});
+await fs.writeFile(path.join(outputDir, "overview.ndjson"), overview.ndjson, "utf8");
+
+const sheets = [];
+for (let i = 0; ; i += 1) {
+  let sheet;
+  try {
+    sheet = workbook.worksheets.getItemAt(i);
+  } catch {
+    break;
+  }
+  if (!sheet) break;
+  const name = sheet.name;
+  const used = sheet.getUsedRange();
+  const usedAddress = used?.address ?? null;
+  const info = await workbook.inspect({
+    kind: "region,computedStyle,formula",
+    sheetId: name,
+    range: usedAddress ?? "A1:Z60",
+    maxChars: 30000,
+    tableMaxRows: 80,
+    tableMaxCols: 30,
+    tableMaxCellChars: 240,
+    options: { maxResults: 200 },
+  });
+  await fs.writeFile(path.join(outputDir, `${String(i + 1).padStart(2, "0")}-${name.replaceAll(/[\\/:*?\[\]]/g, "_")}.ndjson`), info.ndjson, "utf8");
+  const preview = await workbook.render({ sheetName: name, autoCrop: "all", scale: 1, format: "png" });
+  const previewPath = path.join(outputDir, `${String(i + 1).padStart(2, "0")}-${name.replaceAll(/[\\/:*?\[\]]/g, "_")}.png`);
+  await fs.writeFile(previewPath, new Uint8Array(await preview.arrayBuffer()));
+  sheets.push({ index: i, name, usedAddress, previewPath });
+}
+
+await fs.writeFile(path.join(outputDir, "sheets.json"), JSON.stringify(sheets, null, 2), "utf8");
+console.log(JSON.stringify(sheets, null, 2));

tmp/mileage-appeal-20260810/make_contact_sheet.py

@@ -0,0 +1,28 @@
+import sys
+from pathlib import Path
+from PIL import Image, ImageDraw, ImageFont
+
+source = Path(sys.argv[1]) if len(sys.argv) > 1 else Path("/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/019fe9b9-eb60-7d22-8c0a-c70851a48083/preview")
+output = source / "contact-sheet.jpg"
+files = sorted(source.glob("*.png"))
+thumb_w, thumb_h = 620, 360
+label_h = 34
+cols = 2
+rows = (len(files) + cols - 1) // cols
+canvas = Image.new("RGB", (cols * thumb_w, rows * (thumb_h + label_h)), "white")
+draw = ImageDraw.Draw(canvas)
+font = ImageFont.load_default()
+
+for index, file in enumerate(files):
+    image = Image.open(file).convert("RGB")
+    image.thumbnail((thumb_w - 12, thumb_h - 12))
+    x0 = (index % cols) * thumb_w
+    y0 = (index // cols) * (thumb_h + label_h)
+    x = x0 + (thumb_w - image.width) // 2
+    y = y0 + 6
+    canvas.paste(image, (x, y))
+    draw.rectangle((x0, y0, x0 + thumb_w - 1, y0 + thumb_h + label_h - 1), outline="#B7C9D6", width=1)
+    draw.text((x0 + 8, y0 + thumb_h + 8), file.stem, fill="#1F2937", font=font)
+
+canvas.save(output, quality=88)
+print(output)

tmp/mileage-appeal-20260810/verify_final.mjs

@@ -0,0 +1,27 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { FileBlob, SpreadsheetFile } from "@oai/artifact-tool";
+
+const workbookPath = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/019fe9b9-eb60-7d22-8c0a-c70851a48083/15辆车里程核验申诉材料_GB32960日里程及原始报文.xlsx";
+const outputDir = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest/outputs/019fe9b9-eb60-7d22-8c0a-c70851a48083/final-qa";
+await fs.mkdir(outputDir, { recursive: true });
+const workbook = await SpreadsheetFile.importXlsx(await FileBlob.load(workbookPath));
+
+const sheets = await workbook.inspect({ kind: "sheet", include: "id,name", maxChars: 8000 });
+const summary = await workbook.inspect({ kind: "table", range: "申诉总览!A1:P20", include: "values,formulas", tableMaxRows: 22, tableMaxCols: 16, maxChars: 18000 });
+const vehicleTop = await workbook.inspect({ kind: "table", range: "02-粤A05839F!A4:P14", include: "values,formulas", tableMaxRows: 14, tableMaxCols: 16, maxChars: 12000 });
+const errors = await workbook.inspect({ kind: "match", searchTerm: "#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A", options: { useRegex: true, maxResults: 300 }, summary: "reimported final formula error scan" });
+await fs.writeFile(path.join(outputDir, "final-inspect.ndjson"), `${sheets.ndjson}\n${summary.ndjson}\n${vehicleTop.ndjson}\n${errors.ndjson}\n`, "utf8");
+
+const vehicleSheetNames = [
+  "01-粤A05995F", "02-粤A05839F", "03-粤A09369F", "04-粤A06658F", "05-粤A05700F",
+  "06-粤A05906F", "07-粤AGP9346", "08-粤AGP2017", "09-粤AGP5165", "10-粤AGP4355",
+  "11-粤AGP5646", "12-粤AGP3692", "13-粤AGP9782", "14-粤AGP3027", "15-粤AGP9751",
+];
+for (let index = 0; index < vehicleSheetNames.length; index += 1) {
+  const sheetName = vehicleSheetNames[index];
+  const preview = await workbook.render({ sheetName, range: "A232:P259", scale: 1, format: "png" });
+  await fs.writeFile(path.join(outputDir, `${String(index + 1).padStart(2, "0")}-${sheetName}.png`), new Uint8Array(await preview.arrayBuffer()));
+}
+
+console.log(JSON.stringify({ workbookPath, outputDir, sheetCount: 17, formulaErrorScan: errors.ndjson }, null, 2));

tmp/seg-mileage-import-20260907/db.py

@@ -0,0 +1,17 @@
+import pymysql, pathlib, re, json
+def connect():
+ env={}
+ for name in ['base.env','stat-writer.env']:
+  for line in pathlib.Path('/opt/lingniu-go-native/env/'+name).read_text().splitlines():
+   if '=' in line and not line.startswith('#'):
+    k,v=line.split('=',1);env[k]=v.strip().strip('\"').strip("'")
+ m=re.fullmatch(r'([^:]+):(.*?)@tcp\(([^:]+):(\d+)\)/([^?]+).*',env['MYSQL_DSN'])
+ assert m, 'Unexpected DSN format'
+ return pymysql.connect(user=m[1],password=m[2],host=m[3],port=int(m[4]),database=m[5],charset='utf8mb4',cursorclass=pymysql.cursors.DictCursor,autocommit=False)
+if __name__=='__main__':
+ c=connect()
+ with c.cursor() as q:
+  for table in ['vehicle_daily_mileage_source','vehicle_daily_mileage','vehicle_data_source','vehicle_identifier','vehicle']:
+   q.execute('SHOW COLUMNS FROM '+table); print(table,json.dumps(q.fetchall(),default=str,ensure_ascii=False))
+  q.execute("SELECT * FROM vehicle_data_source WHERE platform_name LIKE '%赛格%' OR source_code LIKE '%seg%' OR source_ip LIKE '%seg%'"); print('SEG_SOURCES',json.dumps(q.fetchall(),default=str,ensure_ascii=False))
+ c.close()

tmp/seg-mileage-import-20260907/import.py

@@ -0,0 +1,80 @@
+from db import connect
+import json, pathlib, collections, sys, decimal
+root=pathlib.Path(__file__).parent
+rows=json.loads((root/'rows.json').read_text())
+c=connect(); q=c.cursor()
+def query(sql,args=()):
+ q.execute(sql,args);return q.fetchall()
+maps=collections.defaultdict(set)
+for r in query("SELECT vin,plate FROM vehicle UNION SELECT vin,plate FROM vehicle_identifier WHERE enabled=1 UNION SELECT vin,plate FROM vehicle_identity_binding"):
+ if r['plate'] and r['vin']:maps[r['plate'].strip()].add(r['vin'])
+unmapped=[]; mapped=[]
+for r in rows:
+ vins=maps[r['plate']]
+ if len(vins)!=1:unmapped.append(dict(r,matching_vins=sorted(vins)));continue
+ mapped.append(dict(r,vin=next(iter(vins))))
+assert len({(r['vin'],r['date']) for r in mapped})==len(mapped),'VIN/date collision'
+source_ids=[r['id'] for r in query("SELECT id FROM vehicle_data_source WHERE protocol='JT808' AND (source_code='saige' OR platform_name LIKE '%%赛格%%')")]
+existing=query("SELECT s.* FROM vehicle_daily_mileage_source s LEFT JOIN vehicle_data_source d ON d.protocol=s.protocol AND d.source_ip=s.source_ip WHERE s.protocol='JT808' AND s.stat_date BETWEEN '2026-07-01' AND '2026-08-31' AND (d.source_code='saige' OR d.platform_name LIKE '%%赛格%%' OR s.platform_name LIKE '%%赛格%%' OR s.source_key LIKE '%%saige%%')")
+finals=query("SELECT * FROM vehicle_daily_mileage WHERE protocol='JT808' AND stat_date BETWEEN '2026-07-01' AND '2026-08-31'")
+keys={(r['vin'],str(r['stat_date'])) for r in existing}
+keys.update((r['vin'],str(r['stat_date'])) for r in finals if r['source_id'] in source_ids)
+pending=[r for r in mapped if (r['vin'],r['date']) not in keys]
+summary=dict(input_rows=len(rows),mapped_rows=len(mapped),unmapped_rows=len(unmapped),unmapped_plates=sorted({r['plate'] for r in unmapped}),existing_saige_skipped=len(mapped)-len(pending),insert_candidates=len(pending),insert_vehicles=len({r['vin'] for r in pending}),insert_total_km=str(sum((decimal.Decimal(r['km']) for r in pending),decimal.Decimal(0))))
+(root/'preflight.json').write_text(json.dumps(summary,ensure_ascii=False,indent=2))
+(root/'unmapped.json').write_text(json.dumps(unmapped,ensure_ascii=False,indent=2))
+(root/'pending.json').write_text(json.dumps(pending,ensure_ascii=False,indent=2))
+print(json.dumps(summary,ensure_ascii=False))
+if '--apply' not in sys.argv:
+ c.rollback(); c.close(); sys.exit(0)
+# Historical dates only. Lock every affected vehicle/day source range and result
+# in deterministic order before rechecking existence. No UPDATE statements.
+c.rollback()
+pending.sort(key=lambda r:(r['vin'],r['date']))
+before=[]; locked=[]; skipped_race=0
+for r in pending:
+ args=(r['vin'],r['date'])
+ ss=query("SELECT * FROM vehicle_daily_mileage_source WHERE vin=%s AND stat_date=%s AND protocol='JT808' FOR UPDATE",args)
+ ff=query("SELECT * FROM vehicle_daily_mileage WHERE vin=%s AND stat_date=%s AND protocol='JT808' FOR UPDATE",args)
+ before.append(dict(vin=r['vin'],date=r['date'],sources=ss,final=ff))
+ has=any(s['source_ip'] in ('222.66.200.68','58.33.87.196','manual-saige-excel') or 'saige' in s['source_key'].lower() or '赛格' in (s['platform_name'] or '') for s in ss) or any(f['source_id'] in source_ids for f in ff)
+ if has:skipped_race+=1;continue
+ locked.append((r,ff))
+(root/'backup-before.json').write_text(json.dumps(before,default=str,ensure_ascii=False))
+ds=query("SELECT * FROM vehicle_data_source WHERE protocol='JT808' AND source_ip='manual-saige-excel'")
+if ds:
+ assert ds[0]['source_code']=='saige' and ds[0]['platform_name']=='赛格'
+ sid=ds[0]['id']
+else:
+ q.execute("INSERT INTO vehicle_data_source (protocol,source_ip,platform_name,source_code,source_kind,trust_priority,enabled,remark) VALUES ('JT808','manual-saige-excel','赛格','saige','PLATFORM',100,1,%s)",('赛格Excel每日里程导入；仅补缺，不覆盖已有记录；报表未提供累计总里程',))
+ sid=q.lastrowid
+inserted=[]; final_inserted=0
+for r,ff in locked:
+ key='JT808:'+r['phone']+'@PLATFORM:saige_excel'
+ reason='manual_saige_excel_import_20260907;file='+r['file']+';row='+str(r['row'])
+ q.execute("""INSERT INTO vehicle_daily_mileage_source
+ (vin,stat_date,protocol,source_key,source_ip,source_endpoint,phone,platform_name,daily_mileage_km,sample_count,quality_status,quality_reason,is_selected)
+ VALUES (%s,%s,'JT808',%s,'manual-saige-excel','manual-excel-import',%s,'赛格',%s,1,'OK',%s,%s)""",(r['vin'],r['date'],key,r['phone'],r['km'],reason,int(not ff)))
+ assert q.rowcount==1
+ if not ff:
+  q.execute("INSERT INTO vehicle_daily_mileage (vin,stat_date,protocol,source_id,daily_mileage_km) VALUES (%s,%s,'JT808',%s,%s)",(r['vin'],r['date'],sid,r['km']))
+  assert q.rowcount==1;final_inserted+=1
+ inserted.append(dict(r,source_key=key))
+# Verify every old row is byte-for-byte equivalent as typed query results.
+for b in before:
+ args=(b['vin'],b['date'])
+ now=query("SELECT * FROM vehicle_daily_mileage_source WHERE vin=%s AND stat_date=%s AND protocol='JT808'",args)
+ lookup={s['source_key']:s for s in now}
+ assert all(lookup[s['source_key']]==s for s in b['sources']), 'Existing source changed'
+ if b['final']:
+  assert query("SELECT * FROM vehicle_daily_mileage WHERE vin=%s AND stat_date=%s AND protocol='JT808'",args)==b['final'],'Existing final changed'
+for r in inserted:
+ v=query("SELECT daily_mileage_km,latest_total_mileage_km,first_total_mileage_km FROM vehicle_daily_mileage_source WHERE vin=%s AND stat_date=%s AND protocol='JT808' AND source_key=%s",(r['vin'],r['date'],r['source_key']))
+ assert len(v)==1 and v[0]['daily_mileage_km']==decimal.Decimal(r['km']) and v[0]['latest_total_mileage_km'] is None and v[0]['first_total_mileage_km'] is None
+result=dict(summary,inserted_sources=len(inserted),inserted_final_rows=final_inserted,preserved_existing_final_rows=len(locked)-final_inserted,concurrent_skipped=skipped_race,source_id=sid,existing_rows_verified_unchanged=True)
+(root/'inserted.json').write_text(json.dumps(inserted,ensure_ascii=False))
+c.commit()
+result['committed']=True
+(root/'result.json').write_text(json.dumps(result,ensure_ascii=False,indent=2))
+print(json.dumps(result,ensure_ascii=False))
+c.close()

tmp/seg-mileage-import-20260907/prepare.py

@@ -0,0 +1,25 @@
+import xlrd, json, pathlib, decimal, hashlib, re
+out=pathlib.Path(__file__).parent
+rows=[]; summary=[]; seen={}
+for p in sorted(pathlib.Path('/Users/lingniu/Documents').glob('里程统计报表*.xls')):
+ s=xlrd.open_workbook(str(p)).sheet_by_index(0)
+ meta={'file':p.name,'sha256':hashlib.sha256(p.read_bytes()).hexdigest(),'rows':s.nrows-1}
+ if s.cell_value(0,2)!='日期':
+  meta.update(excluded='No daily date column',nonzero=sum(decimal.Decimal(str(s.cell_value(i,3)))!=0 for i in range(1,s.nrows)))
+  summary.append(meta); continue
+ dates=[]
+ for i in range(1,s.nrows):
+  plate,phone,day,km=map(lambda x:str(x).strip(),s.row_values(i))
+  import datetime
+  datetime.date.fromisoformat(day)
+  assert re.fullmatch(r'(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?',km), km
+  amount=decimal.Decimal(km.replace(',','')); assert amount.is_finite() and amount>=0
+  key=(plate,day)
+  assert key not in seen, ('duplicate',key)
+  seen[key]=amount; dates.append(day)
+  rows.append(dict(plate=plate,phone=phone,date=day,km=str(amount),file=p.name,row=i+1))
+ meta.update(date_min=min(dates),date_max=max(dates),vehicles=len({r['plate'] for r in rows if r['file']==p.name}))
+ summary.append(meta)
+(out/'rows.json').write_text(json.dumps(rows,ensure_ascii=False))
+(out/'input-summary.json').write_text(json.dumps(summary,ensure_ascii=False,indent=2))
+print(json.dumps(summary,ensure_ascii=False,indent=2))

tmp/seg-mileage-import-20260907/verify.py

@@ -0,0 +1,15 @@
+from db import connect
+import pathlib,json,decimal,collections
+p=pathlib.Path(__file__).parent
+inserted=json.loads((p/'inserted.json').read_text())
+c=connect();q=c.cursor()
+q.execute("SELECT vin,stat_date,source_key,daily_mileage_km,latest_total_mileage_km FROM vehicle_daily_mileage_source WHERE source_ip='manual-saige-excel' AND stat_date BETWEEN '2026-07-01' AND '2026-08-31'")
+actual={(r['vin'],str(r['stat_date']),r['source_key']):r for r in q.fetchall()}
+months=collections.defaultdict(lambda:dict(rows=0,total_km=decimal.Decimal(0)))
+for r in inserted:
+ a=actual[(r['vin'],r['date'],r['source_key'])]
+ assert a['daily_mileage_km']==decimal.Decimal(r['km']) and a['latest_total_mileage_km'] is None
+ m=months[r['date'][:7]];m['rows']+=1;m['total_km']+=a['daily_mileage_km']
+v=dict(verified_rows=len(inserted),months=dict(months),verified_total_km=sum((m['total_km'] for m in months.values()),decimal.Decimal(0)))
+(p/'verification.json').write_text(json.dumps(v,default=str,ensure_ascii=False,indent=2))
+print(json.dumps(v,default=str,ensure_ascii=False));c.close()

tmp/vehicle-mileage-selection-019fa1ac-db39-7933-bb0e-30dd63cc25bd/build.mjs

@@ -0,0 +1,638 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { spawnSync } from "node:child_process";
+import { SpreadsheetFile, Workbook } from "@oai/artifact-tool";
+
+const workspaceRoot = "/Users/lingniu/project/ai-coding/lingniu-vehicle-ingest";
+const workDir = path.join(
+  workspaceRoot,
+  "tmp/vehicle-mileage-selection-019fa1ac-db39-7933-bb0e-30dd63cc25bd",
+);
+const outputDir = path.join(
+  workspaceRoot,
+  "outputs/019fa1ac-db39-7933-bb0e-30dd63cc25bd",
+);
+const outputPath = path.join(
+  outputDir,
+  "江浙沪四类车型近三个月GPS里程清单_20260427-20260726.xlsx",
+);
+const masterPath = path.join(
+  workspaceRoot,
+  "outputs/jt808-provider-audit-20260717/oneos-vehicle-master.json",
+);
+
+const dateFrom = "2026-04-27";
+const dateTo = "2026-07-26";
+const periodDays = 91;
+const queryAsOf = "2026-07-28";
+const mileageProtocol = "JT808";
+
+function assert(condition, message) {
+  if (!condition) throw new Error(message);
+}
+
+function postProductionAPI(endpoint, body) {
+  const remoteCommand =
+    `. /opt/lingniu-vehicle-platform/env/access-tokens.env; ` +
+    `curl -fsS -H "Authorization: Bearer $ADMIN_TOKEN" ` +
+    `-H "Content-Type: application/json" --data-binary @- ` +
+    `http://127.0.0.1:20300${endpoint}`;
+  const result = spawnSync(
+    "ssh",
+    ["-o", "BatchMode=yes", "root@115.29.187.205", remoteCommand],
+    {
+      input: JSON.stringify(body),
+      encoding: "utf8",
+      maxBuffer: 64 * 1024 * 1024,
+    },
+  );
+  if (result.status !== 0) {
+    throw new Error(
+      `Production API failed for ${endpoint}: ${result.stderr || result.stdout}`,
+    );
+  }
+  const payload = JSON.parse(result.stdout);
+  if (!payload.data) {
+    throw new Error(`Production API returned no data for ${endpoint}`);
+  }
+  return payload.data;
+}
+
+function excelDate(isoDate) {
+  return new Date(`${isoDate}T00:00:00+08:00`);
+}
+
+function datesBetween(start, end) {
+  const result = [];
+  const cursor = new Date(`${start}T00:00:00+08:00`);
+  const last = new Date(`${end}T00:00:00+08:00`);
+  while (cursor <= last) {
+    result.push(cursor.toLocaleDateString("en-CA", { timeZone: "Asia/Shanghai" }));
+    cursor.setDate(cursor.getDate() + 1);
+  }
+  return result;
+}
+
+function residentLocation(rawCity) {
+  const parts = String(rawCity || "").split("-");
+  const province = parts[0] || "";
+  const city = parts.slice(1).join("-") || province;
+  return { province, city };
+}
+
+function vehicleCategory(model) {
+  const normalized = String(model || "");
+  if (normalized.includes("4.5吨") && !normalized.includes("冷链")) {
+    return "4.5T普货";
+  }
+  if (normalized.includes("冷链")) return "冷链";
+  if (normalized.includes("18吨")) return "18T";
+  if (normalized.includes("49吨")) return "49T";
+  return "";
+}
+
+function isJiangZheHu(city) {
+  return ["江苏省-", "浙江省-", "上海市-"].some((prefix) =>
+    String(city || "").startsWith(prefix),
+  );
+}
+
+async function loadMasterVehicles() {
+  const source = JSON.parse(await fs.readFile(masterPath, "utf8"));
+  const rows = source.sheets?.[0]?.rows || [];
+  assert(rows.length > 1, "OneOS vehicle master is empty");
+  const headers = rows[0].values;
+  const headerIndex = Object.fromEntries(headers.map((value, index) => [value, index]));
+  const requiredHeaders = [
+    "车牌号",
+    "VIN",
+    "运营城市",
+    "品牌",
+    "型号",
+    "运营状态",
+    "车辆状态",
+    "客户名称",
+  ];
+  for (const header of requiredHeaders) {
+    assert(headerIndex[header] !== undefined, `Missing master header: ${header}`);
+  }
+  const result = [];
+  for (const row of rows.slice(1)) {
+    const values = [...row.values, ...Array(headers.length).fill("")];
+    const cityRaw = values[headerIndex["运营城市"]];
+    const model = values[headerIndex["型号"]];
+    const category = vehicleCategory(model);
+    if (!category || !isJiangZheHu(cityRaw)) continue;
+    const vin = String(values[headerIndex["VIN"]] || "").trim();
+    const plate = String(values[headerIndex["车牌号"]] || "").trim();
+    if (!vin || !plate) continue;
+    const location = residentLocation(cityRaw);
+    result.push({
+      category,
+      plate,
+      vin,
+      brand: String(values[headerIndex["品牌"]] || "").trim(),
+      model: String(model || "").trim(),
+      province: location.province,
+      city: location.city,
+      cityRaw: String(cityRaw || "").trim(),
+      operationStatus: String(values[headerIndex["运营状态"]] || "").trim(),
+      vehicleStatus: String(values[headerIndex["车辆状态"]] || "").trim(),
+      customerName: ["租赁", "自营"].includes(
+        String(values[headerIndex["运营状态"]] || "").trim(),
+      )
+        ? String(values[headerIndex["客户名称"]] || "").trim()
+        : "",
+    });
+  }
+  return result;
+}
+
+function queryRanking(vins) {
+  if (vins.length === 0) return { ranking: [], asOf: "" };
+  return postProductionAPI("/api/v2/statistics/mileage", {
+    dateFrom,
+    dateTo,
+    vins,
+    protocol: mileageProtocol,
+  });
+}
+
+function rankingMap(data) {
+  return new Map((data.ranking || []).map((row) => [row.vin, row]));
+}
+
+function selectCategoryVehicles(category, candidates) {
+  const categoryCandidates = candidates.filter((row) => row.category === category);
+  assert(
+    categoryCandidates.length >= 10,
+    `${category} has only ${categoryCandidates.length} Jiang-Zhe-Hu candidates`,
+  );
+  const masterByVIN = new Map(categoryCandidates.map((row) => [row.vin, row]));
+  const suzhouVINs = categoryCandidates
+    .filter((row) => row.city === "苏州市")
+    .map((row) => row.vin);
+  const otherVINs = categoryCandidates
+    .filter((row) => row.city !== "苏州市")
+    .map((row) => row.vin);
+  const suzhouRanking = queryRanking(suzhouVINs);
+  const otherRanking = queryRanking(otherVINs);
+  const combined = [
+    ...(suzhouRanking.ranking || []).map((row) => ({
+      ...row,
+      suzhouPreferred: true,
+    })),
+    ...(otherRanking.ranking || []).map((row) => ({
+      ...row,
+      suzhouPreferred: false,
+    })),
+  ];
+  assert(combined.length >= 10, `${category} has fewer than 10 vehicles with mileage`);
+  return combined.slice(0, 10).map((ranked, index) => ({
+    ...masterByVIN.get(ranked.vin),
+    rank: index + 1,
+    sourcePeriodMileageKm: Number(ranked.mileageKm || 0),
+    sourceActiveDays: Number(ranked.activeDays || 0),
+    suzhouPreferred: ranked.suzhouPreferred,
+    statisticsAsOf: suzhouRanking.asOf || otherRanking.asOf || "",
+  }));
+}
+
+function queryDailyMileage(vins) {
+  const items = [];
+  let offset = 0;
+  const limit = 1000;
+  let total = Number.POSITIVE_INFINITY;
+  while (offset < total) {
+    const page = postProductionAPI("/api/mileage/daily", {
+      dateFrom,
+      dateTo,
+      vins,
+      protocol: mileageProtocol,
+      deduplicate: true,
+      limit,
+      offset,
+    });
+    const pageItems = page.items || [];
+    items.push(...pageItems);
+    total = Number(page.total || 0);
+    offset += pageItems.length;
+    if (pageItems.length === 0) break;
+  }
+  return items;
+}
+
+function styleTitle(sheet, rangeAddress, title) {
+  const range = sheet.getRange(rangeAddress);
+  range.merge();
+  range.values = [[title]];
+  range.format = {
+    fill: "#0F4C5C",
+    font: { bold: true, color: "#FFFFFF", size: 16 },
+    verticalAlignment: "center",
+    horizontalAlignment: "left",
+  };
+  range.format.rowHeight = 34;
+}
+
+function styleHeader(range) {
+  range.format = {
+    fill: "#DCEEF2",
+    font: { bold: true, color: "#12343B" },
+    verticalAlignment: "center",
+    horizontalAlignment: "center",
+    wrapText: true,
+    borders: {
+      bottom: { style: "medium", color: "#78A7B2" },
+    },
+  };
+  range.format.rowHeight = 30;
+}
+
+function styleNote(range) {
+  range.format = {
+    fill: "#F3F8FA",
+    font: { color: "#385A64", size: 10 },
+    wrapText: true,
+    verticalAlignment: "center",
+  };
+}
+
+function addCategoryConditionalFormatting(range) {
+  range.conditionalFormats.addCustom('=$A5="4.5T普货"', {
+    fill: "#FFF4CC",
+    font: { bold: true, color: "#7A5300" },
+  });
+  range.conditionalFormats.addCustom('=$A5="冷链"', {
+    fill: "#DDF3FF",
+    font: { bold: true, color: "#075985" },
+  });
+  range.conditionalFormats.addCustom('=$A5="18T"', {
+    fill: "#E8E1FF",
+    font: { bold: true, color: "#5B21B6" },
+  });
+  range.conditionalFormats.addCustom('=$A5="49T"', {
+    fill: "#DFF5E6",
+    font: { bold: true, color: "#166534" },
+  });
+}
+
+const masterVehicles = await loadMasterVehicles();
+const categories = ["4.5T普货", "冷链", "18T", "49T"];
+const selectedVehicles = categories.flatMap((category) =>
+  selectCategoryVehicles(category, masterVehicles),
+);
+assert(selectedVehicles.length === 40, "Expected exactly 40 selected vehicles");
+assert(
+  new Set(selectedVehicles.map((row) => row.vin)).size === 40,
+  "Selected VINs are not unique",
+);
+
+const dailySourceRows = queryDailyMileage(selectedVehicles.map((row) => row.vin));
+const dailyByVehicleDate = new Map();
+for (const row of dailySourceRows) {
+  assert(
+    row.source === mileageProtocol,
+    `Unexpected mileage source for ${row.vin} on ${row.date}: ${row.source}`,
+  );
+  const key = `${row.vin}|${row.date}`;
+  assert(!dailyByVehicleDate.has(key), `Duplicate deduplicated daily row: ${key}`);
+  dailyByVehicleDate.set(key, row);
+}
+
+const dates = datesBetween(dateFrom, dateTo);
+assert(dates.length === periodDays, `Expected ${periodDays} dates, got ${dates.length}`);
+
+const dailyRows = [];
+for (const vehicle of selectedVehicles) {
+  for (const date of dates) {
+    const source = dailyByVehicleDate.get(`${vehicle.vin}|${date}`);
+    dailyRows.push({
+      date,
+      ...vehicle,
+      dailyMileageKm: source ? Number(source.dailyMileageKm || 0) : null,
+      source: source?.source || "",
+      recordStatus: source ? "有记录" : "缺失",
+    });
+  }
+}
+assert(dailyRows.length === 40 * periodDays, "Daily row count mismatch");
+
+for (const vehicle of selectedVehicles) {
+  const computed = dailyRows
+    .filter((row) => row.vin === vehicle.vin)
+    .reduce((sum, row) => sum + (row.dailyMileageKm ?? 0), 0);
+  const difference = Math.abs(computed - vehicle.sourcePeriodMileageKm);
+  assert(
+    difference < 0.02,
+    `${vehicle.plate} total mismatch: daily=${computed}, stats=${vehicle.sourcePeriodMileageKm}`,
+  );
+}
+
+const workbook = Workbook.create();
+const notesSheet = workbook.worksheets.add("口径说明");
+const summarySheet = workbook.worksheets.add("车辆汇总");
+const dailySheet = workbook.worksheets.add("每日里程");
+
+for (const sheet of [notesSheet, summarySheet, dailySheet]) {
+  sheet.showGridLines = false;
+}
+
+// 口径说明
+styleTitle(notesSheet, "A1:H1", "江浙沪四类车型近三个月 GPS 里程清单");
+notesSheet.getRange("A3:B11").values = [
+  ["项目", "口径"],
+  ["统计区间", `${dateFrom} 至 ${dateTo}（${periodDays} 个自然日，完整日）`],
+  ["区域范围", "常驻市（OneOS 运营城市）属于江苏、浙江、上海"],
+  ["选车规则", "每类先按苏州区间总里程降序选取，不足 10 辆时按江浙沪其他城市区间总里程降序补齐"],
+  ["车型定义", "4.5T普货=型号含4.5吨且不含冷链；冷链=型号含冷链；18T=型号含18吨；49T=型号含49吨"],
+  ["里程口径", "仅使用 JT808 定位终端/GPS 侧累计里程计算，不使用 GB32960、宇通 MQTT 等仪表/车端累计里程"],
+  ["缺失处理", "逐日表保留全部车辆×日期组合；无生产记录的日期留空，并标记为“缺失”，不擅自按0计算"],
+  ["主数据快照", "OneOS车辆信息快照：2026-07-17；常驻市取“运营城市”字段"],
+  ["里程数据截至", `${queryAsOf} 查询，统计截止至 ${dateTo}；来源协议固定为 ${mileageProtocol}`],
+];
+styleHeader(notesSheet.getRange("A3:B3"));
+styleNote(notesSheet.getRange("A4:B11"));
+notesSheet.getRange("A4:A11").format.font = { bold: true, color: "#12343B" };
+notesSheet.getRange("A3:B11").format.borders = {
+  outside: { style: "thin", color: "#B9D3DA" },
+  insideHorizontal: { style: "thin", color: "#DCE8EC" },
+};
+notesSheet.getRange("A13:E18").values = [
+  ["分类", "车辆数", "苏州优先数", "GPS区间总里程(km)", "GPS日均里程(km/天)"],
+  ["4.5T普货", null, null, null, null],
+  ["冷链", null, null, null, null],
+  ["18T", null, null, null, null],
+  ["49T", null, null, null, null],
+  ["合计", null, null, null, null],
+];
+styleHeader(notesSheet.getRange("A13:E13"));
+notesSheet.getRange("B14").formulas = [["=COUNTIF('车辆汇总'!$A$5:$A$44,A14)"]];
+notesSheet.getRange("B14:B17").fillDown();
+notesSheet.getRange("C14").formulas = [
+  ["=COUNTIFS('车辆汇总'!$A$5:$A$44,A14,'车辆汇总'!$I$5:$I$44,\"苏州市\")"],
+];
+notesSheet.getRange("C14:C17").fillDown();
+notesSheet.getRange("D14").formulas = [
+  ["=SUMIF('车辆汇总'!$A$5:$A$44,A14,'车辆汇总'!$O$5:$O$44)"],
+];
+notesSheet.getRange("D14:D17").fillDown();
+notesSheet.getRange("E14").formulas = [["=D14/(B14*'车辆汇总'!$N$5)"]];
+notesSheet.getRange("E14:E17").fillDown();
+notesSheet.getRange("B18").formulas = [["=SUM(B14:B17)"]];
+notesSheet.getRange("C18").formulas = [["=SUM(C14:C17)"]];
+notesSheet.getRange("D18").formulas = [["=SUM(D14:D17)"]];
+notesSheet.getRange("E18").formulas = [["=D18/(B18*'车辆汇总'!$N$5)"]];
+notesSheet.getRange("D14:E18").format.numberFormat = "#,##0.0";
+notesSheet.getRange("A18:E18").format = {
+  fill: "#E8F1F4",
+  font: { bold: true, color: "#12343B" },
+  borders: { top: { style: "double", color: "#78A7B2" } },
+};
+notesSheet.getRange("A13:E18").format.borders = {
+  outside: { style: "thin", color: "#B9D3DA" },
+  insideHorizontal: { style: "thin", color: "#DCE8EC" },
+};
+notesSheet.getRange("A:A").format.columnWidth = 18;
+notesSheet.getRange("B:B").format.columnWidth = 64;
+notesSheet.getRange("C:E").format.columnWidth = 18;
+notesSheet.getRange("A4:B11").format.rowHeight = 34;
+notesSheet.freezePanes.freezeRows(3);
+
+// 车辆汇总
+styleTitle(summarySheet, "A1:Q1", "四类车型各10辆｜近三个月 GPS 里程汇总");
+summarySheet.getRange("A2:Q2").merge();
+summarySheet.getRange("A2").values = [[
+  `范围：江浙沪常驻车辆；苏州优先；统计区间 ${dateFrom} 至 ${dateTo}。仅使用 JT808 GPS 里程，区间总里程由“每日里程”明细公式汇总。`,
+]];
+styleNote(summarySheet.getRange("A2:Q2"));
+const summaryHeaders = [
+  "分类",
+  "类内排名",
+  "车牌",
+  "VIN",
+  "品牌",
+  "型号",
+  "常驻省",
+  "常驻城市原值",
+  "常驻市",
+  "苏州优先",
+  "运营状态",
+  "车辆状态",
+  "客户名称",
+  "区间天数",
+  "GPS区间总里程(km)",
+  "GPS日均里程(km/天)",
+  "有记录天数",
+];
+summarySheet.getRange("A4:Q4").values = [summaryHeaders];
+styleHeader(summarySheet.getRange("A4:Q4"));
+const summaryValues = selectedVehicles.map((vehicle) => [
+  vehicle.category,
+  vehicle.rank,
+  vehicle.plate,
+  vehicle.vin,
+  vehicle.brand,
+  vehicle.model,
+  vehicle.province,
+  vehicle.cityRaw,
+  vehicle.city,
+  vehicle.suzhouPreferred ? "是" : "否",
+  vehicle.operationStatus,
+  vehicle.vehicleStatus,
+  vehicle.customerName,
+  periodDays,
+  null,
+  null,
+  null,
+]);
+summarySheet.getRange(`A5:Q${4 + summaryValues.length}`).values = summaryValues;
+const dailyEndRow = 4 + dailyRows.length;
+summarySheet.getRange("O5").formulas = [[
+  `=SUMIFS('每日里程'!$J$5:$J$${dailyEndRow},'每日里程'!$E$5:$E$${dailyEndRow},D5)`,
+]];
+summarySheet.getRange("O5:O44").fillDown();
+summarySheet.getRange("P5").formulas = [["=O5/N5"]];
+summarySheet.getRange("P5:P44").fillDown();
+summarySheet.getRange("Q5").formulas = [[
+  `=COUNTIFS('每日里程'!$E$5:$E$${dailyEndRow},D5,'每日里程'!$L$5:$L$${dailyEndRow},"有记录")`,
+]];
+summarySheet.getRange("Q5:Q44").fillDown();
+summarySheet.getRange("B5:B44").format.numberFormat = "0";
+summarySheet.getRange("N5:N44").format.numberFormat = "0";
+summarySheet.getRange("O5:P44").format.numberFormat = "#,##0.0";
+summarySheet.getRange("Q5:Q44").format.numberFormat = "0";
+summarySheet.getRange("A5:Q44").format.verticalAlignment = "center";
+summarySheet.getRange("A5:Q44").format.borders = {
+  insideHorizontal: { style: "thin", color: "#E2ECEF" },
+};
+addCategoryConditionalFormatting(summarySheet.getRange("A5:A44"));
+summarySheet.getRange("O5:O44").conditionalFormats.add("dataBar", {
+  color: "#2A9D8F",
+  gradient: true,
+});
+summarySheet.getRange("J5:J44").conditionalFormats.add("containsText", {
+  text: "是",
+  format: {
+    fill: "#E5F7ED",
+    font: { bold: true, color: "#166534" },
+  },
+});
+const summaryTable = summarySheet.tables.add("A4:Q44", true, "VehicleMileageSummary");
+summaryTable.style = "TableStyleMedium2";
+summaryTable.showFilterButton = true;
+summarySheet.freezePanes.freezeRows(4);
+summarySheet.freezePanes.freezeColumns(4);
+const summaryWidths = [
+  14, 10, 14, 22, 12, 30, 12, 20, 12, 10, 12, 12, 30, 10, 18, 18, 14,
+];
+summaryWidths.forEach((width, index) => {
+  summarySheet.getRangeByIndexes(0, index, 44, 1).format.columnWidth = width;
+});
+summarySheet.getRange("A5:Q44").format.rowHeight = 23;
+
+// 每日里程
+styleTitle(dailySheet, "A1:L1", "40辆车逐日 GPS 里程明细");
+dailySheet.getRange("A2:L2").merge();
+dailySheet.getRange("A2").values = [[
+  `共 ${selectedVehicles.length} 辆 × ${periodDays} 天 = ${dailyRows.length.toLocaleString("zh-CN")} 行；仅统计 JT808 GPS 里程，缺失日期留空并单独标记。`,
+]];
+styleNote(dailySheet.getRange("A2:L2"));
+const dailyHeaders = [
+  "日期",
+  "分类",
+  "类内排名",
+  "车牌",
+  "VIN",
+  "品牌",
+  "型号",
+  "常驻市",
+  "客户名称",
+  "GPS每日里程(km)",
+  "来源",
+  "记录状态",
+];
+dailySheet.getRange("A4:L4").values = [dailyHeaders];
+styleHeader(dailySheet.getRange("A4:L4"));
+const dailyValues = dailyRows.map((row) => [
+  excelDate(row.date),
+  row.category,
+  row.rank,
+  row.plate,
+  row.vin,
+  row.brand,
+  row.model,
+  row.city,
+  row.customerName,
+  row.dailyMileageKm,
+  row.source,
+  row.recordStatus,
+]);
+dailySheet.getRange(`A5:L${dailyEndRow}`).values = dailyValues;
+dailySheet.getRange(`A5:A${dailyEndRow}`).format.numberFormat = "yyyy-mm-dd";
+dailySheet.getRange(`C5:C${dailyEndRow}`).format.numberFormat = "0";
+dailySheet.getRange(`J5:J${dailyEndRow}`).format.numberFormat = "#,##0.0";
+dailySheet.getRange(`A5:L${dailyEndRow}`).format.borders = {
+  insideHorizontal: { style: "thin", color: "#EDF2F4" },
+};
+dailySheet.getRange(`L5:L${dailyEndRow}`).conditionalFormats.add("containsText", {
+  text: "缺失",
+  format: {
+    fill: "#FFF0F0",
+    font: { bold: true, color: "#B42318" },
+  },
+});
+dailySheet.getRange(`J5:J${dailyEndRow}`).conditionalFormats.add("dataBar", {
+  color: "#5CA4A9",
+  gradient: true,
+});
+const dailyTable = dailySheet.tables.add(
+  `A4:L${dailyEndRow}`,
+  true,
+  "VehicleDailyMileage",
+);
+dailyTable.style = "TableStyleMedium2";
+dailyTable.showFilterButton = true;
+dailySheet.freezePanes.freezeRows(4);
+dailySheet.freezePanes.freezeColumns(5);
+const dailyWidths = [14, 14, 10, 14, 22, 12, 30, 12, 30, 18, 16, 12];
+dailyWidths.forEach((width, index) => {
+  dailySheet.getRangeByIndexes(0, index, dailyEndRow, 1).format.columnWidth = width;
+});
+dailySheet.getRange(`A5:L${dailyEndRow}`).format.rowHeight = 21;
+
+// Compact verification before export.
+const summaryInspect = await workbook.inspect({
+  kind: "table",
+  range: "车辆汇总!A1:Q16",
+  include: "values,formulas",
+  tableMaxRows: 16,
+  tableMaxCols: 17,
+  maxChars: 12000,
+});
+await fs.writeFile(path.join(workDir, "summary-inspect.ndjson"), summaryInspect.ndjson);
+
+const dailyInspect = await workbook.inspect({
+  kind: "table",
+  range: "每日里程!A1:L20",
+  include: "values,formulas",
+  tableMaxRows: 20,
+  tableMaxCols: 12,
+  maxChars: 12000,
+});
+await fs.writeFile(path.join(workDir, "daily-inspect.ndjson"), dailyInspect.ndjson);
+
+const formulaErrors = await workbook.inspect({
+  kind: "match",
+  searchTerm: "#REF!|#DIV/0!|#VALUE!|#NAME\\?|#N/A",
+  options: { useRegex: true, maxResults: 300 },
+  summary: "final formula error scan",
+  maxChars: 12000,
+});
+await fs.writeFile(path.join(workDir, "formula-errors.ndjson"), formulaErrors.ndjson);
+
+for (const [sheetName, range, fileName] of [
+  ["口径说明", "A1:H19", "preview-notes.png"],
+  ["车辆汇总", "A1:Q18", "preview-summary.png"],
+  ["每日里程", "A1:L26", "preview-daily.png"],
+]) {
+  const preview = await workbook.render({
+    sheetName,
+    range,
+    scale: 1.25,
+    format: "png",
+  });
+  await fs.writeFile(
+    path.join(workDir, fileName),
+    new Uint8Array(await preview.arrayBuffer()),
+  );
+}
+
+await fs.mkdir(outputDir, { recursive: true });
+const output = await SpreadsheetFile.exportXlsx(workbook);
+await output.save(outputPath);
+
+console.log(
+  JSON.stringify(
+    {
+      outputPath,
+      selected: selectedVehicles.map((vehicle) => ({
+        category: vehicle.category,
+        rank: vehicle.rank,
+        plate: vehicle.plate,
+        vin: vehicle.vin,
+        brand: vehicle.brand,
+        model: vehicle.model,
+        residentCity: vehicle.city,
+        suzhouPreferred: vehicle.suzhouPreferred,
+        periodMileageKm: vehicle.sourcePeriodMileageKm,
+      })),
+      sourceDailyRows: dailySourceRows.length,
+      expandedDailyRows: dailyRows.length,
+      missingDailyRows: dailyRows.filter((row) => row.recordStatus === "缺失").length,
+      customerFilledVehicles: selectedVehicles.filter((row) => row.customerName).length,
+    },
+    null,
+    2,
+  ),
+);

vehicle-data-platform/apps/api/cmd/daily-geography/main.go

@@ -0,0 +1,133 @@
+package main
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"flag"
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+	_ "github.com/taosdata/driver-go/v3/taosWS"
+	"lingniu/vehicle-data-platform/apps/api/internal/config"
+	"lingniu/vehicle-data-platform/apps/api/internal/dailygeo"
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+func main() {
+	if e := run(); e != nil {
+		log.Fatal(e)
+	}
+}
+func run() error {
+	mode := flag.String("mode", "status", "status, backfill, resolve, or live")
+	from := flag.String("from", "", "first historical date, defaults to first hydrogen day")
+	to := flag.String("to", "", "last historical date, defaults to yesterday")
+	concurrency := flag.Int("concurrency", 3, "maximum concurrent geocoding requests (1-8)")
+	flag.Parse()
+	cfg := config.Load()
+	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer cancel()
+	db, e := sql.Open("mysql", cfg.MySQLDSN)
+	if e != nil {
+		return e
+	}
+	defer db.Close()
+	db.SetMaxOpenConns(12)
+	if *from == "" {
+		if e = db.QueryRowContext(ctx, `SELECT COALESCE(DATE_FORMAT(MIN(stat_date),'%Y-%m-%d'),'') FROM vehicle_open_daily_energy WHERE energy_type='HYDROGEN'`).Scan(from); e != nil {
+			return e
+		}
+	}
+	if *to == "" {
+		*to = time.Now().In(dailygeo.Shanghai).AddDate(0, 0, -1).Format("2006-01-02")
+	}
+	first, e := time.ParseInLocation("2006-01-02", *from, dailygeo.Shanghai)
+	if e != nil {
+		return e
+	}
+	last, e := time.ParseInLocation("2006-01-02", *to, dailygeo.Shanghai)
+	if e != nil {
+		return e
+	}
+	if first.After(last) {
+		return fmt.Errorf("invalid date range")
+	}
+	if *mode == "status" {
+		return printStatus(ctx, db, *from, *to)
+	}
+	if cfg.AMapAPIKey == "" {
+		return fmt.Errorf("AMAP_API_KEY required")
+	}
+	td, e := sql.Open(cfg.TDengineDriver, cfg.TDengineDSN)
+	if e != nil {
+		return e
+	}
+	defer td.Close()
+	td.SetMaxOpenConns(2)
+	w := dailygeo.New(db, td, cfg.TDengineDatabase, &dailygeo.AMap{Key: cfg.AMapAPIKey})
+	w.Concurrency = *concurrency
+	if *mode == "live" {
+		w.Run(ctx)
+		return ctx.Err()
+	}
+	if *mode != "backfill" && *mode != "resolve" {
+		return fmt.Errorf("invalid mode")
+	}
+	return w.WithLock(ctx, "vehicle_daily_geography_backfill", func() error {
+		if *mode == "backfill" {
+			for d := first; !d.After(last); d = d.AddDate(0, 0, 1) {
+				rctx, c := context.WithTimeout(ctx, 90*time.Second)
+				n, e := w.RefreshDay(rctx, d.Format("2006-01-02"))
+				c()
+				if e != nil {
+					return e
+				}
+				log.Printf("daily_geography_seed date=%s points=%d", d.Format("2006-01-02"), n)
+			}
+		}
+		for {
+			n, failed, e := w.ResolvePending(ctx, *from, *to, 1000)
+			log.Printf("daily_geography_batch resolved=%d failed=%d error=%v", n, failed, e)
+			if ctx.Err() != nil {
+				return ctx.Err()
+			}
+			if e != nil && failed == 0 {
+				return e
+			}
+			if n+failed == 0 {
+				break
+			}
+		}
+		return printStatus(ctx, db, *from, *to)
+	})
+}
+func printStatus(ctx context.Context, db *sql.DB, from, to string) error {
+	rows, e := db.QueryContext(ctx, `SELECT status,COUNT(*) FROM vehicle_daily_geography WHERE stat_date BETWEEN ? AND ? GROUP BY status`, from, to)
+	if e != nil {
+		return e
+	}
+	defer rows.Close()
+	counts := map[string]int{}
+	for rows.Next() {
+		var s string
+		var n int
+		if e = rows.Scan(&s, &n); e != nil {
+			return e
+		}
+		counts[s] = n
+	}
+	if e = rows.Err(); e != nil {
+		return e
+	}
+	rows.Close()
+	var missing int
+	e = db.QueryRowContext(ctx, `SELECT COUNT(*) FROM vehicle_open_daily_energy h LEFT JOIN vehicle_daily_geography g ON g.vin=h.vin COLLATE utf8mb4_unicode_ci AND g.stat_date=h.stat_date WHERE h.energy_type='HYDROGEN' AND h.stat_date BETWEEN ? AND ? AND g.vin IS NULL`, from, to).Scan(&missing)
+	if e != nil {
+		return e
+	}
+	return json.NewEncoder(os.Stdout).Encode(map[string]any{"from": from, "to": to, "counts": counts, "hydrogenDaysMissing": missing})
+}

vehicle-data-platform/apps/api/cmd/mileage-reconcile-audit/main.go

@@ -0,0 +1,93 @@
+// Read-only production verification of the same repository used by HTTP APIs.
+package main
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"flag"
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+	"lingniu/vehicle-data-platform/apps/api/internal/openplatform"
+	"math"
+	"os"
+	"reflect"
+	"strings"
+	"time"
+)
+
+func main() {
+	start := flag.String("start", "2026-09-11", "first date")
+	end := flag.String("end", "2026-09-15", "last date")
+	vin := flag.String("vins", "", "VINs, empty = all current vehicles")
+	flag.Parse()
+	db, err := sql.Open("mysql", os.Getenv("MYSQL_DSN"))
+	must(err)
+	defer db.Close()
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute)
+	defer cancel()
+	vins := strings.Split(*vin, ",")
+	if *vin == "" {
+		vins = nil
+		rows, e := db.QueryContext(ctx, "SELECT DISTINCT vin FROM vehicle_identity_binding WHERE vin<>''")
+		must(e)
+		for rows.Next() {
+			var v string
+			must(rows.Scan(&v))
+			vins = append(vins, v)
+		}
+		must(rows.Err())
+		rows.Close()
+	}
+	r := openplatform.NewMySQLRepository(db)
+	began := time.Now()
+	priorities := []string{"GB32960", "YUTONG_MQTT"}
+	all, err := r.ReconciledMileageRange(ctx, vins, *start, *end, priorities)
+	must(err)
+	first, e := time.Parse("2006-01-02", *start)
+	must(e)
+	last, e := time.Parse("2006-01-02", *end)
+	must(e)
+	mismatches := 0
+	differences := 0
+	normal := 0
+	qualities := map[string]int{}
+	samples := map[string]openplatform.DailyMileage{}
+	for date := first; !date.After(last); date = date.AddDate(0, 0, 1) {
+		d := date.Format("2006-01-02")
+		single, e := r.ReconciledMileageRange(ctx, vins, d, d, priorities)
+		must(e)
+		for _, v := range vins {
+			key := v + "\x00" + d
+			value, ok := all[key]
+			one, exists := single[key]
+			if ok != exists || !reflect.DeepEqual(value, one) {
+				differences++
+			}
+			if !ok {
+				continue
+			}
+			qualities[value.DataQuality]++
+			prev, hasPrev := all[v+"\x00"+date.AddDate(0, 0, -1).Format("2006-01-02")]
+			if value.DataQuality == "" || value.DataQuality == "CARRIED_FORWARD" {
+				normal++
+				if hasPrev && math.Abs(value.TotalMileageKm-prev.TotalMileageKm-value.MileageKm) > 0.001 {
+					mismatches++
+				}
+			}
+			if len(vins) < 10 {
+				samples[key] = value
+			}
+		}
+	}
+	must(json.NewEncoder(os.Stdout).Encode(map[string]any{"vehicles": len(vins), "rows": len(all), "normal": normal, "qualities": qualities, "reconciliationMismatches": mismatches, "singleRangeDifferences": differences, "samples": samples, "elapsed": time.Since(began).String()}))
+	if mismatches > 0 || differences > 0 {
+		os.Exit(2)
+	}
+}
+func must(e error) {
+	if e != nil {
+		fmt.Fprintln(os.Stderr, e)
+		os.Exit(1)
+	}
+}

vehicle-data-platform/apps/api/cmd/native-alarm-repair/main.go

@@ -0,0 +1,174 @@
+package main
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"os"
+	"time"
+
+	_ "github.com/go-sql-driver/mysql"
+	"lingniu/vehicle-data-platform/apps/api/internal/platform"
+)
+
+func main() {
+	apply := flag.Bool("apply", false, "apply corrections after writing a durable backup")
+	backup := flag.String("backup", "", "new backup JSON path, required with --apply")
+	flag.Parse()
+	if *apply && *backup == "" {
+		panic("--backup is required with --apply")
+	}
+	db, err := sql.Open("mysql", os.Getenv("MYSQL_DSN"))
+	if err != nil {
+		panic("invalid database configuration")
+	}
+	defer db.Close()
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
+	defer cancel()
+	if err = run(ctx, db, *apply, *backup); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}
+
+func rows(ctx context.Context, tx *sql.Tx, query string) ([]map[string]any, error) {
+	r, err := tx.QueryContext(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+	defer r.Close()
+	columns, err := r.Columns()
+	if err != nil {
+		return nil, err
+	}
+	result := []map[string]any{}
+	for r.Next() {
+		values := make([]any, len(columns))
+		targets := make([]any, len(columns))
+		for i := range values {
+			targets[i] = &values[i]
+		}
+		if err = r.Scan(targets...); err != nil {
+			return nil, err
+		}
+		item := map[string]any{}
+		for i, k := range columns {
+			if b, ok := values[i].([]byte); ok {
+				item[k] = string(b)
+			} else {
+				item[k] = values[i]
+			}
+		}
+		result = append(result, item)
+	}
+	return result, r.Err()
+}
+
+type correction struct {
+	id, title, status string
+	remove            bool
+}
+
+func run(ctx context.Context, db *sql.DB, apply bool, backup string) error {
+	tx, err := db.BeginTx(ctx, nil)
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	archive := map[string]any{"createdAt": time.Now().UTC().Format(time.RFC3339), "reason": "decode GB32960 table 18; remove reserved-only false alarms"}
+	data := map[string][]map[string]any{}
+	// Consumer must be stopped for --apply. Lock event rows as well so a concurrent
+	// operator's action is serialized with the correction and fully backed up.
+	for _, q := range []struct{ key, sql string }{
+		{"events", `SELECT * FROM vehicle_alert_event WHERE rule_id='native-gb32960-alarm' ORDER BY id FOR UPDATE`},
+		{"evidence", `SELECT n.* FROM vehicle_native_alarm_evidence n JOIN vehicle_alert_event e ON e.id=n.event_id WHERE e.rule_id='native-gb32960-alarm'`},
+		{"actions", `SELECT a.* FROM vehicle_alert_event_action a JOIN vehicle_alert_event e ON e.id=a.event_id WHERE e.rule_id='native-gb32960-alarm'`},
+		{"state", `SELECT s.* FROM vehicle_native_alarm_state s JOIN vehicle_alert_event e ON e.id=s.active_event_id WHERE e.rule_id='native-gb32960-alarm'`},
+		{"notifications", `SELECT n.id,n.event_id FROM vehicle_alert_notification n JOIN vehicle_alert_event e ON e.id=n.event_id WHERE e.rule_id='native-gb32960-alarm'`},
+	} {
+		items, e := rows(ctx, tx, q.sql)
+		if e != nil {
+			return e
+		}
+		data[q.key] = items
+		archive[q.key] = items
+	}
+	evidence := map[string]string{}
+	for _, row := range data["evidence"] {
+		evidence[fmt.Sprint(row["event_id"])] = fmt.Sprint(row["fields_json"])
+	}
+	notified := map[string]bool{}
+	for _, row := range data["notifications"] {
+		notified[fmt.Sprint(row["event_id"])] = true
+	}
+	changes := []correction{}
+	renamed, removed := 0, 0
+	names := map[string]int{}
+	for _, row := range data["events"] {
+		id := fmt.Sprint(row["id"])
+		var fields map[string]json.RawMessage
+		if err = json.Unmarshal([]byte(evidence[id]), &fields); err != nil {
+			return fmt.Errorf("event %s has no valid evidence; no changes applied", id)
+		}
+		description, valid := platform.DescribeNativeAlarm(fields)
+		if !valid {
+			return fmt.Errorf("event %s has unsupported evidence; no changes applied", id)
+		}
+		names[description.Title]++
+		if !description.Active {
+			if notified[id] {
+				return fmt.Errorf("event %s has notifications; refusing automatic deletion", id)
+			}
+			changes = append(changes, correction{id: id, remove: true})
+			removed++
+		} else if fmt.Sprint(row["rule_name"]) != description.Title {
+			changes = append(changes, correction{id: id, title: description.Title, status: fmt.Sprint(row["status"])})
+			renamed++
+		}
+	}
+	if apply && len(changes) > 0 {
+		file, e := os.OpenFile(backup, os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0600)
+		if e != nil {
+			return e
+		}
+		e = json.NewEncoder(file).Encode(archive)
+		if e == nil {
+			e = file.Sync()
+		}
+		closeErr := file.Close()
+		if e != nil {
+			return e
+		}
+		if closeErr != nil {
+			return closeErr
+		}
+		for _, change := range changes {
+			if change.remove {
+				if _, err = tx.ExecContext(ctx, `UPDATE vehicle_native_alarm_state SET active_event_id='' WHERE active_event_id=?`, change.id); err != nil {
+					return err
+				}
+				for _, table := range []string{"vehicle_alert_event_action", "vehicle_native_alarm_evidence"} {
+					if _, err = tx.ExecContext(ctx, "DELETE FROM "+table+" WHERE event_id=?", change.id); err != nil {
+						return err
+					}
+				}
+				if _, err = tx.ExecContext(ctx, `DELETE FROM vehicle_alert_event WHERE id=? AND rule_id='native-gb32960-alarm'`, change.id); err != nil {
+					return err
+				}
+			} else {
+				if _, err = tx.ExecContext(ctx, `UPDATE vehicle_alert_event SET rule_name=?,version=version+1 WHERE id=? AND rule_id='native-gb32960-alarm'`, change.title, change.id); err != nil {
+					return err
+				}
+				if _, err = tx.ExecContext(ctx, `INSERT INTO vehicle_alert_event_action(event_id,action,from_status,to_status,actor,note) VALUES(?,'repair',?,?,'native-alarm-repair','按GB/T 32960.3-2016表18修正具体告警名称，保留原始证据')`, change.id, change.status, change.status); err != nil {
+					return err
+				}
+			}
+		}
+		if err = tx.Commit(); err != nil {
+			return err
+		}
+	}
+	return json.NewEncoder(os.Stdout).Encode(map[string]any{"applied": apply, "scanned": len(data["events"]), "renamed": renamed, "removed": removed, "descriptions": names})
+}

vehicle-data-platform/apps/api/cmd/native-alarm-repair/main_test.go

@@ -0,0 +1,108 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/DATA-DOG/go-sqlmock"
+)
+
+func expectSnapshot(mock sqlmock.Sqlmock, notified bool) {
+	mock.ExpectBegin()
+	mock.ExpectQuery(`SELECT \* FROM vehicle_alert_event`).WillReturnRows(sqlmock.NewRows([]string{"id", "rule_name", "status"}).AddRow("false-event", "车辆原生告警", "unprocessed").AddRow("real-event", "车辆原生告警", "processing"))
+	payload := func(flag string) string {
+		data := map[string]any{"gb32960.alarm.max_alarm_level": "0", "gb32960.alarm.general_alarm_flag": flag}
+		for _, key := range []string{"battery_faults", "motor_faults", "engine_faults", "other_faults"} {
+			data["gb32960.alarm."+key] = []string{}
+		}
+		b, _ := json.Marshal(data)
+		return string(b)
+	}
+	mock.ExpectQuery(`SELECT n.\* FROM vehicle_native_alarm_evidence`).WillReturnRows(sqlmock.NewRows([]string{"event_id", "fields_json"}).AddRow("false-event", payload("0x00300000")).AddRow("real-event", payload("0x00380800")))
+	mock.ExpectQuery(`SELECT a.\* FROM vehicle_alert_event_action`).WillReturnRows(sqlmock.NewRows([]string{"event_id", "action"}).AddRow("false-event", "trigger"))
+	mock.ExpectQuery(`SELECT s.\* FROM vehicle_native_alarm_state`).WillReturnRows(sqlmock.NewRows([]string{"vin", "active_event_id"}).AddRow("VIN1", "false-event"))
+	notifications := sqlmock.NewRows([]string{"id", "event_id"})
+	if notified {
+		notifications.AddRow(1, "false-event")
+	}
+	mock.ExpectQuery(`SELECT n.id,n.event_id`).WillReturnRows(notifications)
+}
+
+func TestRepairDryRunNeverWrites(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	expectSnapshot(mock, false)
+	mock.ExpectRollback()
+	if err := run(t.Context(), db, false, ""); err != nil {
+		t.Fatal(err)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+func TestRepairBacksUpAndCorrectsOnlyNativeEvents(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	expectSnapshot(mock, false)
+	mock.ExpectExec(`UPDATE vehicle_native_alarm_state`).WithArgs("false-event").WillReturnResult(sqlmock.NewResult(0, 1))
+	mock.ExpectExec(`DELETE FROM vehicle_alert_event_action`).WithArgs("false-event").WillReturnResult(sqlmock.NewResult(0, 1))
+	mock.ExpectExec(`DELETE FROM vehicle_native_alarm_evidence`).WithArgs("false-event").WillReturnResult(sqlmock.NewResult(0, 1))
+	mock.ExpectExec(`DELETE FROM vehicle_alert_event WHERE id=\? AND rule_id='native-gb32960-alarm'`).WithArgs("false-event").WillReturnResult(sqlmock.NewResult(0, 1))
+	mock.ExpectExec(`UPDATE vehicle_alert_event SET rule_name=\?,version=version\+1 WHERE id=\? AND rule_id='native-gb32960-alarm'`).WithArgs("绝缘报警", "real-event").WillReturnResult(sqlmock.NewResult(0, 1))
+	mock.ExpectExec(`INSERT INTO vehicle_alert_event_action`).WithArgs("real-event", "processing", "processing").WillReturnResult(sqlmock.NewResult(1, 1))
+	mock.ExpectCommit()
+	path := filepath.Join(t.TempDir(), "backup.json")
+	if err := run(t.Context(), db, true, path); err != nil {
+		t.Fatal(err)
+	}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var archive map[string]json.RawMessage
+	if err = json.Unmarshal(data, &archive); err != nil {
+		t.Fatal(err)
+	}
+	for _, key := range []string{"events", "evidence", "actions", "state"} {
+		if len(archive[key]) == 0 {
+			t.Fatalf("missing backup %s", key)
+		}
+	}
+	info, _ := os.Stat(path)
+	if info.Mode().Perm() != 0600 {
+		t.Fatal("backup permissions")
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+func TestRepairRefusesToOverwriteBackup(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	expectSnapshot(mock, false)
+	mock.ExpectRollback()
+	path := filepath.Join(t.TempDir(), "backup.json")
+	if err := os.WriteFile(path, []byte("previous backup"), 0600); err != nil {
+		t.Fatal(err)
+	}
+	if err := run(t.Context(), db, true, path); err == nil {
+		t.Fatal("overwrote backup")
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+func TestRepairRefusesToOrphanNotifications(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	expectSnapshot(mock, true)
+	mock.ExpectRollback()
+	if err := run(t.Context(), db, true, filepath.Join(t.TempDir(), "backup.json")); err == nil {
+		t.Fatal("deleted notified event")
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}

vehicle-data-platform/apps/api/internal/app/server.go

@@ -19,6 +19,7 @@ import (
 	"time"
 
 	"lingniu/vehicle-data-platform/apps/api/internal/config"
+	"lingniu/vehicle-data-platform/apps/api/internal/dailygeo"
 	"lingniu/vehicle-data-platform/apps/api/internal/httpx"
 	"lingniu/vehicle-data-platform/apps/api/internal/openplatform"
 	"lingniu/vehicle-data-platform/apps/api/internal/platform"
@@ -69,6 +70,11 @@ func NewServer(cfg config.Config) http.Handler {
 				log.Printf("production capacity-check probe enabled")
 			}
 			productionStore.WithAlertStreamConfig(cfg.AlertStreamMode, cfg.AlertStreamKafkaGroup)
+			if cfg.DailyGeographyEnabled && tdengine != nil && cfg.AMapAPIKey != "" {
+				geographyWorker := dailygeo.New(db, tdengine, cfg.TDengineDatabase, &dailygeo.AMap{Key: cfg.AMapAPIKey})
+				geographyWorker.RequestInterval = 100 * time.Millisecond
+				go geographyWorker.Run(context.Background())
+			}
 			store = productionStore
 			storeErr = nil
 			log.Printf("production mysql store enabled")

vehicle-data-platform/apps/api/internal/config/config.go

@@ -8,6 +8,7 @@ import (
 )
 
 type Config struct {
+	DailyGeographyEnabled         bool
 	HTTPAddr                      string
 	StaticDir                     string
 	MySQLDSN                      string
@@ -97,6 +98,7 @@ func Load() Config {
 		RequestTimeout:                time.Duration(envInt("REQUEST_TIMEOUT_MS", 5000)) * time.Millisecond,
 		AMapWebJSKey:                  os.Getenv("AMAP_WEB_JS_KEY"),
 		AMapAPIKey:                    os.Getenv("AMAP_API_KEY"),
+		DailyGeographyEnabled:         envBool("DAILY_GEOGRAPHY_ENABLED", false),
 		AMapSecurityCode:              os.Getenv("AMAP_SECURITY_JS_CODE"),
 		AMapServiceHost:               os.Getenv("AMAP_SECURITY_SERVICE_HOST"),
 		PlatformRelease:               os.Getenv("PLATFORM_RELEASE"),

vehicle-data-platform/apps/api/internal/dailygeo/coordinates.go

@@ -0,0 +1,35 @@
+package dailygeo
+
+import "math"
+
+func WGS84ToGCJ02(longitude float64, latitude float64) (float64, float64) {
+	if longitude < 72.004 || longitude > 137.8347 || latitude < 0.8293 || latitude > 55.8271 {
+		return longitude, latitude
+	}
+	const semiMajorAxis = 6378245.0
+	const eccentricitySquared = 0.006693421622965943
+	longitudeOffset := transformGCJLongitude(longitude-105, latitude-35)
+	latitudeOffset := transformGCJLatitude(longitude-105, latitude-35)
+	radianLatitude := latitude / 180 * math.Pi
+	magic := 1 - eccentricitySquared*math.Pow(math.Sin(radianLatitude), 2)
+	squareRootMagic := math.Sqrt(magic)
+	convertedLatitude := latitude + latitudeOffset*180/((semiMajorAxis*(1-eccentricitySquared))/(magic*squareRootMagic)*math.Pi)
+	convertedLongitude := longitude + longitudeOffset*180/(semiMajorAxis/squareRootMagic*math.Cos(radianLatitude)*math.Pi)
+	return convertedLongitude, convertedLatitude
+}
+
+func transformGCJLatitude(longitude float64, latitude float64) float64 {
+	value := -100 + 2*longitude + 3*latitude + 0.2*latitude*latitude + 0.1*longitude*latitude + 0.2*math.Sqrt(math.Abs(longitude))
+	value += (20*math.Sin(6*longitude*math.Pi) + 20*math.Sin(2*longitude*math.Pi)) * 2 / 3
+	value += (20*math.Sin(latitude*math.Pi) + 40*math.Sin(latitude/3*math.Pi)) * 2 / 3
+	value += (160*math.Sin(latitude/12*math.Pi) + 320*math.Sin(latitude*math.Pi/30)) * 2 / 3
+	return value
+}
+
+func transformGCJLongitude(longitude float64, latitude float64) float64 {
+	value := 300 + longitude + 2*latitude + 0.1*longitude*longitude + 0.1*longitude*latitude + 0.1*math.Sqrt(math.Abs(longitude))
+	value += (20*math.Sin(6*longitude*math.Pi) + 20*math.Sin(2*longitude*math.Pi)) * 2 / 3
+	value += (20*math.Sin(longitude*math.Pi) + 40*math.Sin(longitude/3*math.Pi)) * 2 / 3
+	value += (150*math.Sin(longitude/12*math.Pi) + 300*math.Sin(longitude/30*math.Pi)) * 2 / 3
+	return value
+}

vehicle-data-platform/apps/api/internal/dailygeo/geocoder.go

@@ -0,0 +1,123 @@
+package dailygeo
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+)
+
+type Address struct{ Province, City, Region, Adcode string }
+type Resolver interface {
+	Resolve(context.Context, float64, float64) (Address, error)
+}
+type AMap struct {
+	Key, BaseURL string
+	Client       *http.Client
+}
+
+func (a *AMap) Resolve(ctx context.Context, lng, lat float64) (Address, error) {
+	if a.Key == "" {
+		return Address{}, fmt.Errorf("AMAP_API_KEY is not configured")
+	}
+	base := a.BaseURL
+	if base == "" {
+		base = "https://restapi.amap.com"
+	}
+	u, e := url.Parse(base + "/v3/geocode/regeo")
+	if e != nil {
+		return Address{}, fmt.Errorf("invalid geocoder URL")
+	}
+	x, y := WGS84ToGCJ02(lng, lat)
+	q := u.Query()
+	q.Set("key", a.Key)
+	q.Set("location", fmt.Sprintf("%.6f,%.6f", x, y))
+	q.Set("extensions", "base")
+	q.Set("radius", "1000")
+	u.RawQuery = q.Encode()
+	req, e := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil)
+	if e != nil {
+		return Address{}, fmt.Errorf("invalid geocoder request")
+	}
+	client := a.Client
+	if client == nil {
+		client = &http.Client{Timeout: 10 * time.Second}
+	}
+	resp, e := client.Do(req)
+	if e != nil {
+		return Address{}, fmt.Errorf("geocoder request failed")
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		return Address{}, fmt.Errorf("geocoder HTTP %d", resp.StatusCode)
+	}
+	var body struct {
+		Status    string
+		Infocode  string
+		Regeocode struct {
+			AddressComponent struct{ Province, City, District, Adcode json.RawMessage } `json:"addressComponent"`
+		}
+	}
+	if e = json.NewDecoder(io.LimitReader(resp.Body, 1<<20)).Decode(&body); e != nil {
+		return Address{}, fmt.Errorf("invalid geocoder response")
+	}
+	if body.Status != "1" {
+		return Address{}, fmt.Errorf("geocoder rejected: %s", body.Infocode)
+	}
+	p, c := textValue(body.Regeocode.AddressComponent.Province), textValue(body.Regeocode.AddressComponent.City)
+	if c == "" {
+		switch p {
+		case "北京市", "上海市", "天津市", "重庆市", "香港特别行政区", "澳门特别行政区":
+			c = p
+		}
+	}
+	// Province-administered county-level cities (for example 潜江市) are
+	// returned in district, with city=[], by AMap.
+	if c == "" && p != "" {
+		district := textValue(body.Regeocode.AddressComponent.District)
+		if strings.HasSuffix(district, "市") {
+			c = district
+		}
+	}
+	if p == "" || c == "" {
+		return Address{}, fmt.Errorf("geocoder returned incomplete province/city")
+	}
+	return Address{p, c, Region(p), textValue(body.Regeocode.AddressComponent.Adcode)}, nil
+}
+func textValue(raw json.RawMessage) string {
+	var s string
+	if json.Unmarshal(raw, &s) == nil {
+		return s
+	}
+	var ss []string
+	if json.Unmarshal(raw, &ss) == nil {
+		return strings.Join(ss, "")
+	}
+	return ""
+}
+func Region(province string) string {
+	groups := []struct {
+		name      string
+		provinces []string
+	}{
+		{"华东", []string{"上海", "江苏", "浙江", "安徽", "福建", "江西", "山东", "台湾"}},
+		{"华北", []string{"北京", "天津", "河北", "山西", "内蒙古"}},
+		{"华中", []string{"河南", "湖北", "湖南"}},
+		{"华南", []string{"广东", "广西", "海南", "香港", "澳门"}},
+		{"东北", []string{"辽宁", "吉林", "黑龙江"}},
+		{"西南", []string{"重庆", "四川", "贵州", "云南", "西藏"}},
+		{"西北", []string{"陕西", "甘肃", "青海", "宁夏", "新疆"}},
+	}
+	for _, g := range groups {
+		for _, p := range g.provinces {
+			if strings.HasPrefix(province, p) {
+				return g.name
+			}
+		}
+	}
+	return ""
+}

vehicle-data-platform/apps/api/internal/dailygeo/worker.go

@@ -0,0 +1,297 @@
+package dailygeo
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log"
+	"math"
+	"regexp"
+	"sync"
+	"time"
+)
+
+var Shanghai = time.FixedZone("Asia/Shanghai", 8*3600)
+var identifier = regexp.MustCompile(`^[A-Za-z_][A-Za-z0-9_]*$`)
+
+type Point struct {
+	VIN, Protocol       string
+	Time                time.Time
+	Longitude, Latitude float64
+}
+type Worker struct {
+	RequestInterval time.Duration
+	DB, TD          *sql.DB
+	Database        string
+	Resolver        Resolver
+	Concurrency     int
+	requestMu       sync.Mutex
+	nextRequest     time.Time
+}
+
+func New(db, td *sql.DB, database string, r Resolver) *Worker {
+	return &Worker{DB: db, TD: td, Database: database, Resolver: r, Concurrency: 3}
+}
+func validPoint(p Point) bool {
+	return p.VIN != "" && !(p.Longitude == -0.999999 && p.Latitude == -0.999999) && !p.Time.IsZero() && p.Longitude != 0 && p.Latitude != 0 && !math.IsNaN(p.Longitude) && !math.IsNaN(p.Latitude) && math.Abs(p.Longitude) <= 180 && math.Abs(p.Latitude) <= 90
+}
+func newer(a, b Point) bool {
+	return a.Time.After(b.Time) || (a.Time.Equal(b.Time) && a.Protocol < b.Protocol)
+}
+
+// Last() is applied only to non-null valid coordinates, partitioned by VIN and
+// protocol. All selected columns therefore refer to the same final source row.
+func (w *Worker) RefreshDay(ctx context.Context, date string) (int, error) {
+	day, e := time.ParseInLocation("2006-01-02", date, Shanghai)
+	if e != nil {
+		return 0, e
+	}
+	if w.TD == nil || !identifier.MatchString(w.Database) {
+		return 0, fmt.Errorf("historical location store unavailable")
+	}
+	q := fmt.Sprintf(`SELECT vin,protocol,LAST(ts),LAST(longitude),LAST(latitude) FROM %s.vehicle_locations WHERE ts >= '%s' AND ts < '%s' AND NOT (longitude = -0.999999 AND latitude = -0.999999) AND longitude <> 0 AND longitude BETWEEN -180 AND 180 AND latitude <> 0 AND latitude BETWEEN -90 AND 90 PARTITION BY vin,protocol`, w.Database, day.Format(time.RFC3339), day.AddDate(0, 0, 1).Format(time.RFC3339))
+	rows, e := w.TD.QueryContext(ctx, q)
+	if e != nil {
+		return 0, e
+	}
+	points := map[string]Point{}
+	for rows.Next() {
+		var p Point
+		if e = rows.Scan(&p.VIN, &p.Protocol, &p.Time, &p.Longitude, &p.Latitude); e != nil {
+			rows.Close()
+			return 0, e
+		}
+		if !validPoint(p) || p.Time.In(Shanghai).Format("2006-01-02") != date {
+			continue
+		}
+		if old, ok := points[p.VIN]; !ok || newer(p, old) {
+			points[p.VIN] = p
+		}
+	}
+	e = rows.Err()
+	rows.Close()
+	if e != nil {
+		return 0, e
+	}
+	// Repair the device's invalid-location sentinel before applying real points.
+	// Clearing its timestamp allows an earlier valid point from this day to win.
+	_, e = w.DB.ExecContext(ctx, `UPDATE vehicle_daily_geography SET longitude=NULL,latitude=NULL,location_time=NULL,province='',city='',region='',adcode='',status='NO_LOCATION',attempts=0,last_error='',next_attempt_at=NULL,resolved_at=NULL WHERE stat_date=? AND longitude=-0.999999 AND latitude=-0.999999`, date)
+	if e != nil {
+		return 0, e
+	}
+	for _, p := range points {
+		if e = w.SavePoint(ctx, p); e != nil {
+			return 0, e
+		}
+	}
+	// A successful historical lookup with no point is distinct from an unavailable
+	// history service. Never record NO_LOCATION when the lookup itself failed.
+	_, e = w.DB.ExecContext(ctx, `INSERT IGNORE INTO vehicle_daily_geography(vin,stat_date,status) SELECT vin,stat_date,'NO_LOCATION' FROM vehicle_open_daily_energy WHERE energy_type='HYDROGEN' AND stat_date=?`, date)
+	return len(points), e
+}
+
+const savePointSQL = `INSERT INTO vehicle_daily_geography(vin,stat_date,longitude,latitude,location_time,source_protocol,status) VALUES(?,?,?,?,?,?,'PENDING') ON DUPLICATE KEY UPDATE
+ province=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),'',province),
+ city=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),'',city),
+ region=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),'',region),
+ adcode=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),'',adcode),
+ status=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),'PENDING',status),
+ attempts=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),0,attempts),
+ next_attempt_at=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),NULL,next_attempt_at),
+ last_error=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),'',last_error),
+ resolved_at=IF((location_time IS NULL OR VALUES(location_time)>location_time) AND (longitude IS NULL OR longitude<>VALUES(longitude) OR latitude<>VALUES(latitude)),NULL,resolved_at),
+ longitude=IF(location_time IS NULL OR VALUES(location_time)>location_time,VALUES(longitude),longitude),
+ latitude=IF(location_time IS NULL OR VALUES(location_time)>location_time,VALUES(latitude),latitude),
+ source_protocol=IF(location_time IS NULL OR VALUES(location_time)>location_time,VALUES(source_protocol),source_protocol),
+ location_time=IF(location_time IS NULL OR VALUES(location_time)>location_time,VALUES(location_time),location_time)`
+
+func (w *Worker) SavePoint(ctx context.Context, p Point) error {
+	if !validPoint(p) {
+		return fmt.Errorf("invalid historical location")
+	}
+	_, e := w.DB.ExecContext(ctx, savePointSQL, p.VIN, p.Time.In(Shanghai).Format("2006-01-02"), math.Round(p.Longitude*1e6)/1e6, math.Round(p.Latitude*1e6)/1e6, p.Time.In(Shanghai), p.Protocol)
+	return e
+}
+
+type pending struct {
+	VIN, Date           string
+	Longitude, Latitude float64
+}
+
+func (w *Worker) ResolvePending(ctx context.Context, from, to string, limit int) (int, int, error) {
+	if limit <= 0 || limit > 5000 {
+		limit = 500
+	}
+	rows, e := w.DB.QueryContext(ctx, `SELECT vin,DATE_FORMAT(stat_date,'%Y-%m-%d'),longitude,latitude FROM vehicle_daily_geography WHERE stat_date BETWEEN ? AND ? AND status IN ('PENDING','ERROR') AND (next_attempt_at IS NULL OR next_attempt_at<=NOW(3)) ORDER BY stat_date DESC,vin LIMIT ?`, from, to, limit)
+	if e != nil {
+		return 0, 0, e
+	}
+	items := []pending{}
+	for rows.Next() {
+		var p pending
+		if e = rows.Scan(&p.VIN, &p.Date, &p.Longitude, &p.Latitude); e != nil {
+			rows.Close()
+			return 0, 0, e
+		}
+		items = append(items, p)
+	}
+	e = rows.Err()
+	rows.Close()
+	if e != nil {
+		return 0, 0, e
+	}
+	jobs := make(chan pending, len(items))
+	for _, p := range items {
+		jobs <- p
+	}
+	close(jobs)
+	count := w.Concurrency
+	if count < 1 {
+		count = 1
+	}
+	if count > 8 {
+		count = 8
+	}
+	var mu sync.Mutex
+	var wg sync.WaitGroup
+	ok, failed := 0, 0
+	var first error
+	for i := 0; i < count; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for p := range jobs {
+				if ctx.Err() != nil {
+					return
+				}
+				e := w.resolveOne(ctx, p)
+				mu.Lock()
+				if e == nil {
+					ok++
+				} else {
+					failed++
+					if first == nil {
+						first = e
+					}
+				}
+				mu.Unlock()
+			}
+		}()
+	}
+	wg.Wait()
+	if ctx.Err() != nil {
+		return ok, failed, ctx.Err()
+	}
+	return ok, failed, first
+}
+func (w *Worker) resolveOne(ctx context.Context, p pending) error {
+	var a Address
+	e := w.DB.QueryRowContext(ctx, `SELECT province,city,region,adcode FROM vehicle_geography_cache WHERE longitude=? AND latitude=? AND resolved_at>=DATE_SUB(NOW(),INTERVAL 180 DAY)`, p.Longitude, p.Latitude).Scan(&a.Province, &a.City, &a.Region, &a.Adcode)
+	if e != nil && e != sql.ErrNoRows {
+		return e
+	}
+	if e == sql.ErrNoRows {
+		// At most three external calls in flight by default; quota/network failures
+		// are persisted and retried with backoff, never exported as a guessed city.
+		w.requestMu.Lock()
+		delay := time.Until(w.nextRequest)
+		if delay > 0 {
+			timer := time.NewTimer(delay)
+			select {
+			case <-ctx.Done():
+				timer.Stop()
+				w.requestMu.Unlock()
+				return ctx.Err()
+			case <-timer.C:
+			}
+		}
+		interval := w.RequestInterval
+		if interval <= 0 {
+			interval = 20 * time.Millisecond
+		}
+		w.nextRequest = time.Now().Add(interval)
+		w.requestMu.Unlock()
+		rctx, cancel := context.WithTimeout(ctx, 12*time.Second)
+		a, e = w.Resolver.Resolve(rctx, p.Longitude, p.Latitude)
+		cancel()
+		if e != nil {
+			_, saveErr := w.DB.ExecContext(ctx, `UPDATE vehicle_daily_geography SET status='ERROR',attempts=attempts+1,last_error=?,next_attempt_at=DATE_ADD(NOW(3),INTERVAL LEAST(3600,60*POW(2,LEAST(attempts,6))) SECOND) WHERE vin=? AND stat_date=? AND longitude=? AND latitude=?`, e.Error(), p.VIN, p.Date, p.Longitude, p.Latitude)
+			if saveErr != nil {
+				return saveErr
+			}
+			return e
+		}
+		_, e = w.DB.ExecContext(ctx, `INSERT INTO vehicle_geography_cache(longitude,latitude,province,city,region,adcode) VALUES(?,?,?,?,?,?) ON DUPLICATE KEY UPDATE province=VALUES(province),city=VALUES(city),region=VALUES(region),adcode=VALUES(adcode),resolved_at=NOW(3)`, p.Longitude, p.Latitude, a.Province, a.City, a.Region, a.Adcode)
+		if e != nil {
+			return e
+		}
+	}
+	_, e = w.DB.ExecContext(ctx, `UPDATE vehicle_daily_geography SET province=?,city=?,region=?,adcode=?,status='RESOLVED',last_error='',attempts=0,next_attempt_at=NULL,resolved_at=NOW(3) WHERE vin=? AND stat_date=? AND longitude=? AND latitude=?`, a.Province, a.City, a.Region, a.Adcode, p.VIN, p.Date, p.Longitude, p.Latitude)
+	return e
+}
+
+// An advisory lock is tied to this dedicated connection and released even on
+// cancellation/crash, preventing multiple API replicas from running the loop.
+func (w *Worker) WithLock(ctx context.Context, name string, fn func() error) error {
+	conn, e := w.DB.Conn(ctx)
+	if e != nil {
+		return e
+	}
+	defer conn.Close()
+	var acquired int
+	if e = conn.QueryRowContext(ctx, `SELECT GET_LOCK(?,0)`, name).Scan(&acquired); e != nil {
+		return e
+	}
+	if acquired != 1 {
+		return fmt.Errorf("daily geography worker already running")
+	}
+	defer conn.ExecContext(context.Background(), `SELECT RELEASE_LOCK(?)`, name)
+	return fn()
+}
+func (w *Worker) Run(ctx context.Context) {
+	ticker := time.NewTicker(time.Minute)
+	defer ticker.Stop()
+	round := 0
+	for {
+		e := w.WithLock(ctx, "vehicle_daily_geography_live", func() error {
+			today := time.Now().In(Shanghai)
+			date := today.Format("2006-01-02")
+			rctx, c := context.WithTimeout(ctx, 50*time.Second)
+			defer c()
+			if _, e := w.RefreshDay(rctx, date); e != nil {
+				return e
+			}
+			if round%60 == 0 {
+				for d := 1; d <= 2; d++ {
+					if _, e := w.RefreshDay(rctx, today.AddDate(0, 0, -d).Format("2006-01-02")); e != nil {
+						return e
+					}
+				}
+			}
+			n, failed, e := w.ResolvePending(rctx, today.AddDate(0, 0, -2).Format("2006-01-02"), date, 500)
+			log.Printf("daily_geography resolved=%d failed=%d", n, failed)
+			if e != nil {
+				return e
+			}
+			// Historical retry is independent of the live queue. The same lock used
+			// by the CLI prevents duplicate external calls during a bulk backfill.
+			_ = w.WithLock(rctx, "vehicle_daily_geography_backfill", func() error {
+				n, failed, e := w.ResolvePending(rctx, "2000-01-01", today.AddDate(0, 0, -3).Format("2006-01-02"), 200)
+				if n+failed > 0 {
+					log.Printf("daily_geography_history_retry resolved=%d failed=%d error=%v", n, failed, e)
+				}
+				return e
+			})
+			return nil
+		})
+		if e != nil {
+			log.Printf("daily_geography: %v", e)
+		}
+		round++
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C:
+		}
+	}
+}

vehicle-data-platform/apps/api/internal/dailygeo/worker_test.go

@@ -0,0 +1,138 @@
+package dailygeo
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"github.com/DATA-DOG/go-sqlmock"
+	"net/http"
+	"net/http/httptest"
+	"regexp"
+	"strings"
+	"testing"
+	"time"
+)
+
+type resolverFunc func(context.Context, float64, float64) (Address, error)
+
+func (f resolverFunc) Resolve(c context.Context, x, y float64) (Address, error) { return f(c, x, y) }
+func TestAMapMunicipalityAndRegion(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Query().Get("key") != "test-key" {
+			t.Error("missing credential")
+		}
+		w.Write([]byte(`{"status":"1","regeocode":{"addressComponent":{"province":"上海市","city":[],"adcode":"310101"}}}`))
+	}))
+	defer server.Close()
+	a, e := (&AMap{Key: "test-key", BaseURL: server.URL}).Resolve(context.Background(), 121.47, 31.23)
+	if e != nil || a.Province != "上海市" || a.City != "上海市" || a.Region != "华东" {
+		t.Fatalf("address=%+v error=%v", a, e)
+	}
+	for p, want := range map[string]string{"广东省": "华南", "四川省": "西南", "陕西省": "西北", "山西省": "华北", "湖北省": "华中", "吉林省": "东北", "": ""} {
+		if Region(p) != want {
+			t.Fatal(p)
+		}
+	}
+}
+func TestAMapQuotaFailureDoesNotLeakKey(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Write([]byte(`{"status":"0","infocode":"10021"}`)) }))
+	defer server.Close()
+	_, e := (&AMap{Key: "secret-value", BaseURL: server.URL}).Resolve(context.Background(), 121, 31)
+	if e == nil || !strings.Contains(e.Error(), "10021") || strings.Contains(e.Error(), "secret-value") {
+		t.Fatal(e)
+	}
+}
+func TestCachedCoordinateNeedsNoGeocoding(t *testing.T) {
+	db, m, e := sqlmock.New()
+	if e != nil {
+		t.Fatal(e)
+	}
+	defer db.Close()
+	m.ExpectQuery("SELECT province,city,region,adcode").WithArgs(121.0, 31.0).WillReturnRows(sqlmock.NewRows([]string{"province", "city", "region", "adcode"}).AddRow("上海市", "上海市", "华东", "310000"))
+	m.ExpectExec("UPDATE vehicle_daily_geography SET province=.*WHERE vin=\\? AND stat_date=\\? AND longitude=\\? AND latitude=\\?").WithArgs("上海市", "上海市", "华东", "310000", "VIN1", "2026-08-31", 121.0, 31.0).WillReturnResult(sqlmock.NewResult(0, 1))
+	w := New(db, nil, "", resolverFunc(func(context.Context, float64, float64) (Address, error) {
+		t.Fatal("cache hit must not call external API")
+		return Address{}, nil
+	}))
+	if e = w.resolveOne(context.Background(), pending{"VIN1", "2026-08-31", 121, 31}); e != nil {
+		t.Fatal(e)
+	}
+	if e = m.ExpectationsWereMet(); e != nil {
+		t.Fatal(e)
+	}
+}
+func TestResolverFailurePersistsRetryInsteadOfFalseUnknown(t *testing.T) {
+	db, m, _ := sqlmock.New()
+	defer db.Close()
+	m.ExpectQuery("SELECT province,city,region,adcode").WillReturnError(sql.ErrNoRows)
+	m.ExpectExec("UPDATE vehicle_daily_geography SET status='ERROR'.*next_attempt_at=.*WHERE vin=\\? AND stat_date=\\? AND longitude=\\? AND latitude=\\?").WithArgs("quota", "VIN1", "2026-08-31", 121.0, 31.0).WillReturnResult(sqlmock.NewResult(0, 1))
+	w := New(db, nil, "", resolverFunc(func(context.Context, float64, float64) (Address, error) { return Address{}, errors.New("quota") }))
+	if e := w.resolveOne(context.Background(), pending{"VIN1", "2026-08-31", 121, 31}); e == nil {
+		t.Fatal("expected failure")
+	}
+	if e := m.ExpectationsWereMet(); e != nil {
+		t.Fatal(e)
+	}
+}
+func TestHistoricalFailureDoesNotMarkMissingLocation(t *testing.T) {
+	db, m, _ := sqlmock.New()
+	defer db.Close()
+	td, tm, _ := sqlmock.New()
+	defer td.Close()
+	tm.ExpectQuery("SELECT vin,protocol,LAST").WillReturnError(errors.New("historical store unavailable"))
+	w := New(db, td, "test_ts", nil)
+	if _, e := w.RefreshDay(context.Background(), "2026-08-31"); e == nil {
+		t.Fatal("expected history error")
+	}
+	if e := m.ExpectationsWereMet(); e != nil {
+		t.Fatal(e)
+	}
+	if e := tm.ExpectationsWereMet(); e != nil {
+		t.Fatal(e)
+	}
+}
+func TestHistoryUsesLatestSourceInsideBusinessDate(t *testing.T) {
+	db, m, _ := sqlmock.New()
+	defer db.Close()
+	td, tm, _ := sqlmock.New()
+	defer td.Close()
+	early := time.Date(2026, 8, 31, 2, 0, 0, 0, Shanghai)
+	late := early.Add(20 * time.Hour)
+	tm.ExpectQuery("SELECT vin,protocol,LAST.*2026-08-31T00:00:00\\+08:00.*2026-09-01T00:00:00\\+08:00.*PARTITION BY vin,protocol").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "ts", "longitude", "latitude"}).AddRow("VIN1", "GB32960", late, 121.0, 31.0).AddRow("VIN1", "JT808", early, 113.0, 23.0).AddRow("VIN2", "JT808", late.Add(5*time.Hour), 110.0, 20.0))
+	m.ExpectExec("UPDATE vehicle_daily_geography SET longitude=NULL").WithArgs("2026-08-31").WillReturnResult(sqlmock.NewResult(0, 1))
+	m.ExpectExec(regexp.QuoteMeta(savePointSQL)).WithArgs("VIN1", "2026-08-31", 121.0, 31.0, late, "GB32960").WillReturnResult(sqlmock.NewResult(0, 1))
+	m.ExpectExec("INSERT IGNORE INTO vehicle_daily_geography").WithArgs("2026-08-31").WillReturnResult(sqlmock.NewResult(0, 0))
+	w := New(db, td, "test_ts", nil)
+	n, e := w.RefreshDay(context.Background(), "2026-08-31")
+	if e != nil || n != 1 {
+		t.Fatalf("n=%d error=%v", n, e)
+	}
+	if e = m.ExpectationsWereMet(); e != nil {
+		t.Fatal(e)
+	}
+	if e = tm.ExpectationsWereMet(); e != nil {
+		t.Fatal(e)
+	}
+}
+
+func TestProvinceAdministeredCity(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(`{"status":"1","regeocode":{"addressComponent":{"province":"湖北省","city":[],"district":"潜江市","adcode":"429005"}}}`))
+	}))
+	defer server.Close()
+	a, e := (&AMap{Key: "test", BaseURL: server.URL}).Resolve(context.Background(), 112.807848, 30.381828)
+	if e != nil || a.City != "潜江市" || a.Region != "华中" {
+		t.Fatalf("address=%+v error=%v", a, e)
+	}
+}
+
+func TestInvalidLocationSentinel(t *testing.T) {
+	p := Point{VIN: "VIN1", Time: time.Now(), Longitude: -0.999999, Latitude: -0.999999}
+	if validPoint(p) {
+		t.Fatal("invalid device sentinel accepted")
+	}
+	p.Longitude, p.Latitude = 114.3, 30.5
+	if !validPoint(p) {
+		t.Fatal("valid location rejected")
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/assets/openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.3
 info:
   title: 车辆数据开放平台 API
-  version: 1.7.0
+  version: 1.10.0
   license:
     name: Proprietary
   description: |
@@ -16,6 +16,55 @@ tags:
   - name: 开放平台管理
     description: 仅车辆数据平台管理员可调用的应用和车辆授权管理接口
 paths:
+  /api/v1/vehicles/hydrogen-remaining/history/query:
+    post:
+      tags: [合作方数据接口]
+      summary: 批量查询历史时刻剩余氢质量
+      description: |
+        按真实 event_time 查询不晚于指定时刻的最近氢相关帧，不跳过最新异常记录，不使用实时值或日用氢量填补。
+        历史支持从 2026-08-01 起；实际车辆/时间覆盖以保留的原始帧为准，日期可请求不代表每个时点均有有效氢量。
+        历史容量必须具有适用于历史时点的证据；不能用当前配置回套历史。当前缺少历史容量版本，只输出有证据的REPORTED质量，温压有效但无容量版本时 MISSING。
+        同批按规范化VIN+time+protocol去重，同一点共享一次查询/授权结果与来源版本，各requestId仍独立回显；不同点为非原子快照，不以同批证明两端可比。
+        200项仅为结构上限，不保证200个不同点能在9秒完成。建议先用20个不同点，ERROR超时时缩小批量并退避重试。
+        有效采样超容差为STALE，最新帧INVALID/MISSING优先保留原原因；分块原始帧重组失败或候选预算耗尽为ERROR，不伪装NO_DATA。
+        每项均返回 requestId；FORBIDDEN、ERROR 等失败不丢项，非 NORMAL 质量为 null。
+        appKey须当前有效，并逐项校验请求时刻与采样时刻授权（结束时间不含端点）；FORBIDDEN不返回采样元数据。
+        每app每服务实例30批/60秒，最多2个并发批；429包含Retry-After。整批9秒预算、最多4个工作协程，超时项ERROR，可重试。
+      operationId: queryHistoricalHydrogenRemaining
+      security:
+        - AppKeyAuth: []
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/HistoricalHydrogenQuery'
+            example:
+              queries:
+                - requestId: job-start
+                  vin: LA9GG68L2PBAF4773
+                  time: '2026-08-03 16:02:43'
+                  protocol: GB32960
+              maxTimeDifferenceSeconds: 300
+      responses:
+        '200':
+          description: 批量处理完成；每项状态独立判断，包括 FORBIDDEN 或 ERROR
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HistoricalHydrogenQueryResponse'
+        '400':
+          $ref: '#/components/responses/BadRequest'
+        '401':
+          $ref: '#/components/responses/Unauthorized'
+        '429':
+          description: 超出历史查询限流；读取 Retry-After 秒数后重试
+          headers:
+            Retry-After:
+              schema: { type: integer, minimum: 1 }
+              description: 建议等待秒数
+        '500':
+          $ref: '#/components/responses/InternalError'
   /api/v1/vehicles/hydrogen-consumption/query:
     post:
       tags: [合作方数据接口]
@@ -53,9 +102,9 @@ paths:
       summary: 查询车辆单日里程
       description: |
         plateNumbers 省略或传空数组时，返回该应用在查询自然日有效授权的全部车辆。
-        protocolPriority 传入时，逐车按数组顺序选择第一个有效协议，未列出的协议完全禁用且不会兜底；省略时保持平台默认选源行为。
+        protocolPriority 传入时，逐车按数组顺序选择截至查询日已有有效累计读数的第一个协议；高优先级协议缺报时沿用其历史累计值，不切换累计基准，未列出的协议完全禁用且不会兜底；省略时保持平台默认选源行为。
-        NORMAL 结果同时包含日里程、日末累计总里程、实际来源协议、源数据时间和投影更新时间。日里程可由 GPS 轨迹估算；累计总里程读取每日统计中的 day_end_total_mileage_km，始终优先采用同协议终端上报的累计里程，不会使用 GPS 日里程估算值冒充累计里程。
+        NORMAL 结果同时包含日里程、日末累计总里程、实际来源协议、源数据时间和投影更新时间。日里程按同来源相邻自然日累计读数之差计算，缺报期间增量计入恢复上报日；GPS 估算不参与本接口。首次基线、来源切换、累计回退返回 DATA_ANOMALY、dailyMileageKm=null 和 dataQuality。
-        当日无有效里程时，日里程补 0，累计总里程、来源协议、dataTime 和 updatedAt 沿用此前最近的有效统计；updatedAt 仍为上一统计周期的计算时间。
+        当日缺报时，日里程补 0，累计总里程、来源协议、dataTime 和 updatedAt 沿用同协议历史读数，dataQuality=CARRIED_FORWARD。
       operationId: queryDailyMileage
       security:
         - AppKeyAuth: []
@@ -92,7 +141,7 @@ paths:
         首次请求返回 snapshotId 和 nextCursor；后续请求保持原参数并传回 nextCursor。
         快照仅固化授权车辆清单，逐页读取已建立索引的日统计投影，不扫描原始时序明细。
         protocolPriority 对区间内每辆车、每个自然日独立生效；未列出的协议完全禁用。
-        某日无有效里程时，dailyMileageKm 补 0，其余里程证据沿用此前最近的有效统计。若终端累计里程回退，返回 DATA_ANOMALY 与 dataQuality=TOTAL_MILEAGE_ROLLBACK，绝不沿用历史值伪装为正常数据。日里程与日末累计总里程独立统计：GPS 轨迹估算仅用于日里程，累计总里程读取每日统计字段 day_end_total_mileage_km。
+        某日无有效里程时，dailyMileageKm 补 0，其余里程证据沿用此前最近的有效统计。若终端累计里程回退，返回 DATA_ANOMALY 与 dataQuality=TOTAL_MILEAGE_ROLLBACK。日里程与累计值使用同一终端来源；日里程为相邻自然日累计差，GPS 估算不参与本接口。单日、区间和分页共用相同计算规则。
       operationId: queryDailyMileageRange
       security:
         - AppKeyAuth: []
@@ -210,7 +259,12 @@ paths:
         任一采集协议在最近60秒内上报即视为在线；protocol、位置、速度、SOC 和记录时间仍按上述来源优先级选择。
         socPercent 仅在所选来源采集到有效 SOC（0–100，单位 %）时返回；无值或无效值时该字段省略。
         activeToday 表示任一采集协议在当前自然日（Asia/Shanghai）内曾上报，用于日上线车辆统计，不改变 online 的实时口径。
-        在线且所选来源速度大于3km/h为行驶中，否则为静止中。
+        离线时 motionStatus=offline；在线且所选来源速度大于3km/h为 driving，否则为 idle。
+        满充容量采用 PressureHydrogenMassKg(35,15,VIN水容积)；35 MPa 是本次业务基准，15°C 密度比参考来自 https://unece.org/sites/default/files/2024-07/ECE_TRANS_WP.29_2023_110E.pdf，不代表车型额定压力自动认证。
+        储氢优先终端上报质量 REPORTED；无质量时以同帧最大氢压/最大氢温与 VIN 全车水容积估算 ESTIMATED。百分比按 35 MPa、15°C 满充参考质量计算，不以 SOC 替代。
+        仅 GB 最新快照有引用且精确帧氢量 MISSING 时有界回补，按采集时间优先、接收时间次序检查最近5条候选；不完整温压可取次新完整帧，不回退覆盖 INVALID，离线回补保留真实 STALE。
+        GPS 定位状态独立于在线与陈旧；坐标系可能 UNKNOWN，不能假定统一 GCJ02。
+        补充历史查询共享 3 秒预算，失败或超时降级为 MISSING/UNKNOWN 并保留旧实时字段；MISSING 不等于设备不支持。
       operationId: queryRealtimeVehicles
       security:
         - AppKeyAuth: []
@@ -524,7 +578,7 @@ components:
       properties:
         vin:
           type: string
-          pattern: '^[A-HJ-NPR-Z0-9]{17}$'
+          pattern: '^[A-HJ-NPR-Za-hj-npr-z0-9]{17}$'
           description: 已授权车辆 VIN
         time:
           type: string
@@ -593,6 +647,67 @@ components:
             minLength: 1
             maxLength: 32
           description: 可选；省略或传空数组时查询当前有效授权的全部车辆
+    HistoricalHydrogenQuery:
+      type: object
+      additionalProperties: false
+      required: [queries]
+      properties:
+        queries:
+          type: array
+          minItems: 1
+          maxItems: 200
+          items:
+            type: object
+            additionalProperties: false
+            required: [requestId, vin, time]
+            properties:
+              requestId: { type: string, minLength: 1, maxLength: 128, description: 本批唯一非空关联标识，最多128字节，原样返回 }
+              vin: { type: string, minLength: 17, maxLength: 17, pattern: '^[A-HJ-NPR-Za-hj-npr-z0-9]{17}$', description: 查询VIN按大写规范化，禁止I/O/Q }
+              time: { type: string, description: '北京时间 yyyy-MM-dd HH:mm:ss；不得早于2026-08-01或晚于请求时刻' }
+              protocol: { type: string, enum: [GB32960, YUTONG_MQTT, JT808], default: GB32960, description: 省略固定GB32960；显式协议不切换，YUTONG_MQTT/JT808当前UNSUPPORTED }
+        maxTimeDifferenceSeconds:
+          type: integer
+          minimum: 0
+          maximum: 300
+          default: 300
+          description: 允许采样早于查询的最大秒数；0要求精确命中，不静默放宽
+    HistoricalHydrogenQueryResponse:
+      allOf:
+        - $ref: '#/components/schemas/SuccessEnvelope'
+        - type: object
+          required: [data]
+          properties:
+            data:
+              type: array
+              items: { $ref: '#/components/schemas/HistoricalHydrogenResult' }
+    HistoricalHydrogenResult:
+      type: object
+      required: [requestId, vin, plateNumber, queryTime, remainingHydrogenKg, hydrogenRecordTime, timeDifferenceSeconds, remainingHydrogenKgStatus, hydrogenValueSource, hydrogenSourceProtocol, sourceRecordId, sourceDataVersion, hydrogenEstimatePressureMPa, hydrogenEstimateTemperatureC, hydrogenTankCapacityL, hydrogenPressureTemperatureSource, hydrogenCalculationVersion, hydrogenCapacityVersion, updatedAt, reasonCode, message]
+      properties:
+        requestId: { type: string, description: 本批对应请求标识 }
+        vin: { type: string }
+        plateNumber: { type: string, nullable: true, description: 无可证明历史车牌时为 null，不冒用当前车牌 }
+        queryTime: { type: string, description: 请求北京时间 }
+        remainingHydrogenKg: { type: number, nullable: true, minimum: 0, description: '全车剩余氢质量kg，保留源/模型计算精度；仅NORMAL可用，其他状态null。不得用缺值补0' }
+        hydrogenRecordTime: { type: string, format: date-time, nullable: true, description: 真实原始帧 event_time，RFC3339带时区 }
+        timeDifferenceSeconds: { type: number, nullable: true, minimum: 0, description: queryTime减真实采集时间的秒数 }
+        remainingHydrogenKgStatus:
+          type: string
+          enum: [NORMAL, NO_DATA, MISSING, STALE, UNSUPPORTED, INVALID, FORBIDDEN, ERROR]
+          description: 仅NORMAL参与业务计算；ERROR明确为处理失败，可按原因重试；FORBIDDEN不泄露采样
+        hydrogenValueSource: { type: string, nullable: true, enum: [REPORTED, ESTIMATED], description: 终端上报不等同于直接测量；估算需历史温压/容积证据 }
+        hydrogenSourceProtocol: { type: string, nullable: true, enum: [GB32960, YUTONG_MQTT, JT808] }
+        sourceRecordId: { type: string, nullable: true, description: raw-sha256采样身份指纹；两端相同需识别采样分辨率不足，内容修订另看sourceDataVersion }
+        sourceDataVersion: { type: string, nullable: true, description: 'sha256原始JSON和解析状态内容指纹；同采样被修订时变化，不是两端必须相等的口径版本' }
+        hydrogenEstimatePressureMPa: { type: number, nullable: true, description: 有效同帧最大氢压MPa证据，缺历史容量仍可诊断返回 }
+        hydrogenEstimateTemperatureC: { type: number, nullable: true, description: 有效同帧最大氢温摄氏度证据 }
+        hydrogenTankCapacityL: { type: number, nullable: true, description: 当前缺历史容量版本始终null，不能回套当前容积 }
+        hydrogenPressureTemperatureSource: { type: string, nullable: true, enum: [MAX_SENSOR_AGGREGATE], description: 最大温压聚合不保证同瓶 }
+        hydrogenCalculationVersion: { type: string, nullable: true, description: 当前REPORTED_HYDROGEN_KG_V1，质量不额外舍入；ESTIMATED预留但当前缺历史容积版本不输出估算值 }
+        hydrogenCapacityVersion: { type: string, nullable: true, description: 历史时点适用容积版本；估算必需，无证据不估算 }
+        updatedAt: { type: string, format: date-time, nullable: true, description: 原始记录received_at，RFC3339带时区；不代替采集时间，同时间戳修订通过sourceDataVersion识别 }
+        reasonCode: { type: string, nullable: true, description: 可程序识别的状态原因 }
+        message: { type: string, nullable: true, description: 中文状态说明 }
     HydrogenStationQuery:
       type: object
       additionalProperties: false
@@ -608,8 +723,11 @@ components:
           description: true仅合作站，false仅外部站，省略则返回全部
     HydrogenResult:
       type: object
-      required: [plateNumber, date, hydrogenConsumptionKg, status]
+      required: [vin, plateNumber, date, hydrogenConsumptionKg, statisticsStartTime, statisticsEndTime, updatedAt, status]
       properties:
+        vin:
+          type: string
+          description: 授权车辆 VIN，供跨接口身份校验
         plateNumber:
           type: string
         date:
@@ -620,17 +738,32 @@ components:
           format: double
           nullable: true
           description: 单日用氢量，kg；OK 和 SUSPECT 计算结果均返回数值，无数据时为 null
+        statisticsStartTime:
+          type: string
+          format: date-time
+          nullable: true
+          description: FINAL 证据区间最早开始时间；PRELIMINARY 仅有结束水位故为 null；缺失或异常证据为 null。边界是证据包络，不承诺连续覆盖
+        statisticsEndTime:
+          type: string
+          format: date-time
+          nullable: true
+          description: FINAL 证据区间最晚结束时间，PRELIMINARY 为真实 lastEventTime 水位；缺失或异常证据为 null；不是 API 查询时间
+        updatedAt:
+          type: string
+          format: date-time
+          nullable: true
+          description: 同一用氢统计行的数据库更新时间，RFC 3339 带时区；无统计行时为 null
         calculationPhase:
           type: string
           enum: [PRELIMINARY, FINAL]
-          description: 当天流式结果为 PRELIMINARY，日终重算结果为 FINAL
+          description: PRELIMINARY 仅供标注为初步的日内监控；FINAL 表示批量重算已完成，补传或算法调整仍可能再次重算，不保证固定结算时刻
         algorithmVersion:
           type: string
           description: 氢耗计算算法版本
         qualityStatus:
           type: string
           enum: [OK, SUSPECT, NO_DATA]
-          description: 氢耗计算质量状态
+          description: OK 对应 NORMAL；SUSPECT 对应 DATA_ANOMALY 并保留数值供审计，不得用于正常百公里氢耗；NO_DATA 对应无可用统计
         qualityReason:
           type: string
           description: 质量判定原因；SUSPECT 或 NO_DATA 时供调用方解释和审计
@@ -638,7 +771,7 @@ components:
           $ref: '#/components/schemas/DataStatus'
     MileageResult:
       type: object
-      required: [vin, plateNumber, date, dailyMileageKm, totalMileageKm, dataTime, updatedAt, sourceProtocol, status]
+      required: [vin, plateNumber, date, dailyMileageKm, totalMileageKm, dataTime, updatedAt, sourceProtocol, statisticsStartTime, statisticsEndTime, status]
       properties:
         vin:
           type: string
@@ -651,12 +784,22 @@ components:
           type: number
           format: double
           nullable: true
-          description: 单日里程，km；当日无记录但存在历史累计里程时为 0
+          description: 相邻自然日同来源累计值之差，km；跨缺报期增量计入恢复日；缺报日为 0；首次基线、来源变化和累计异常时为 null
         totalMileageKm:
           type: number
           format: double
           nullable: true
           description: 当日所选协议最后有效终端累计总里程，km；GPS 日里程估算不会作为累计总里程。status=NORMAL 时必定有值，NO_DATA 时为 null
+        statisticsStartTime:
+          type: string
+          format: date-time
+          nullable: true
+          description: 日里程起点累计读数的时间；可跨越多个缺报日；历史结转补零或无数据时为 null
+        statisticsEndTime:
+          type: string
+          format: date-time
+          nullable: true
+          description: 当日所选来源最晚 latest_event_time，等于 dataTime；历史结转补零或无数据时为 null。与用氢接口无共同快照保证
         dataTime:
           type: string
           format: date-time
@@ -675,8 +818,8 @@ components:
         dataQuality:
           type: string
           nullable: true
-          enum: [TOTAL_MILEAGE_ROLLBACK]
+          enum: [TOTAL_MILEAGE_ROLLBACK, ODOMETER_SOURCE_CHANGED, NO_PREVIOUS_BASELINE, PREVIOUS_ODOMETER_ANOMALY, CARRIED_FORWARD, outside_daily_range, INVALID_DELTA]
-          description: status=DATA_ANOMALY 时的异常原因；累计里程回退时为 TOTAL_MILEAGE_ROLLBACK
+          description: CARRIED_FORWARD 表示缺报结转；其他值表示无法连续对账的原因，此时 dailyMileageKm 为 null，保留累计读数及来源证据
         status:
           $ref: '#/components/schemas/DataStatus'
     MileageRangeResult:
@@ -719,8 +862,8 @@ components:
         dataQuality:
           type: string
           nullable: true
-          enum: [TOTAL_MILEAGE_ROLLBACK]
+          enum: [TOTAL_MILEAGE_ROLLBACK, ODOMETER_SOURCE_CHANGED, NO_PREVIOUS_BASELINE, PREVIOUS_ODOMETER_ANOMALY, CARRIED_FORWARD, outside_daily_range, INVALID_DELTA]
-          description: status=DATA_ANOMALY 时的异常原因；累计里程回退时为 TOTAL_MILEAGE_ROLLBACK
+          description: CARRIED_FORWARD 表示缺报结转；其他值表示无法连续对账的原因，此时 dailyMileageKm 为 null，保留累计读数及来源证据
         status:
           $ref: '#/components/schemas/DataStatus'
     DataStatus:
@@ -846,10 +989,120 @@ components:
                 $ref: '#/components/schemas/StationaryVehicleResult'
     RealtimeVehicleResult:
       type: object
-      required: [vin, plateNumber, online, motionStatus, locationAvailable, status]
+      required: [vin, plateNumber, online, motionStatus, locationAvailable, status, remainingHydrogenKg, remainingHydrogenPercent, hydrogenRecordTime, hydrogenDataStatus, remainingHydrogenKgStatus, remainingHydrogenPercentStatus, hydrogenValueSource, hydrogenSourceProtocol, hydrogenStaleAfterSeconds, hydrogenExpectedIntervalSeconds, remainingHydrogenPercentSource, hydrogenFullCapacityKg, hydrogenTankCapacityL, hydrogenFullPressureMPa, hydrogenReferenceTemperatureC, hydrogenEstimatePressureMPa, hydrogenEstimateTemperatureC, hydrogenPressureTemperatureSource, hydrogenCalculationVersion, hydrogenCapacitySource, hydrogenPercentReason, gpsFixStatus, locationRecordTime, coordinateSystem]
       properties:
         vin: { type: string }
         plateNumber: { type: string }
+        remainingHydrogenKg:
+          type: number
+          nullable: true
+          minimum: 0
+          maximum: 500
+          description: 全车氢质量 kg；优先 GB32960 广东扩展终端上报（0–200 kg），缺质量时以同帧最大氢压/氢温和 VIN 全车水容积作实气估算（0–500 kg）。真实零保留，缺失/异常为 null，陈旧值保留并标 STALE
+        remainingHydrogenPercent:
+          type: number
+          nullable: true
+          minimum: 0
+          maximum: 100
+          description: 剩余质量除以 VIN 水容积在 35 MPa、15°C 的实气模型满充质量乘100，属于 ESTIMATED；缺容量为 null/MISSING。超过100返回 null/INVALID，不截断为100，kg独立保留；不以动力电池SOC替代
+        hydrogenRecordTime:
+          type: string
+          format: date-time
+          nullable: true
+          description: 氢质量对应原始同帧实际采集时间，RFC 3339 带时区；不是请求时间或缓存更新时间
+        hydrogenDataStatus:
+          type: string
+          enum: [NORMAL, PARTIAL, STALE, MISSING, UNSUPPORTED, INVALID]
+          description: NORMAL 两项有效（可包含估算，见来源）；PARTIAL 部分字段有效；STALE 数据陈旧；MISSING 缺少数据或容量；UNSUPPORTED 不支持；INVALID 异常。数值和字段级状态独立判断
+        remainingHydrogenKgStatus:
+          type: string
+          enum: [NORMAL, STALE, MISSING, UNSUPPORTED, INVALID]
+        remainingHydrogenPercentStatus:
+          type: string
+          enum: [NORMAL, STALE, MISSING, UNSUPPORTED, INVALID]
+          description: 独立于 kg 状态；容量缺失 MISSING，比例超100 INVALID；有值时继承 kg 的 NORMAL 或 STALE
+        hydrogenValueSource:
+          type: string
+          nullable: true
+          enum: [REPORTED, ESTIMATED]
+          description: kg 来源；REPORTED 仅确认终端上报，无法判断终端内部测量或估算；ESTIMATED 为平台压力/温度/容积实气模型估算
+        remainingHydrogenPercentSource:
+          type: string
+          nullable: true
+          enum: [ESTIMATED]
+          description: 百分比始终为模型满充容量推算；与 kg 来源独立，计算前缺条件时为 null
+        hydrogenFullCapacityKg:
+          type: number
+          nullable: true
+          description: 实际用于比例分母的未舍入满充质量，kg；PressureHydrogenMassKg(35,15,VIN水容积)，不是扣除残余后的可用容量
+        hydrogenTankCapacityL:
+          type: number
+          nullable: true
+          description: VIN 配置的全车储氢水容积，L；必须 active 且大于0、不超过10000，不根据车型臆造默认值
+        hydrogenFullPressureMPa:
+          type: number
+          nullable: true
+          enum: [35]
+          description: 本次业务确认的满充参考压力，MPa；不代表自动核验每辆车铭牌额定压力
+        hydrogenReferenceTemperatureC:
+          type: number
+          nullable: true
+          enum: [15]
+          description: 满充参考温度，摄氏度
+        hydrogenEstimatePressureMPa:
+          type: number
+          nullable: true
+          description: 仅平台估算 kg 时使用的同帧最大氢压，MPa；支持0，不补默认值
+        hydrogenEstimateTemperatureC:
+          type: number
+          nullable: true
+          description: 仅平台估算 kg 时使用的同帧最大氢温，摄氏度；模型输入范围−40–726.85°C，不是车辆安全温度阈值；缺失不补默认温度
+        hydrogenPressureTemperatureSource:
+          type: string
+          nullable: true
+          enum: [MAX_SENSOR_AGGREGATE]
+          description: 最大氢压/最大氢温聚合读数近似；两者不保证来自同一瓶，不是逐瓶质量求和或全瓶完整性证明
+        hydrogenCalculationVersion:
+          type: string
+          nullable: true
+          enum: [REAL_GAS_35MPA_15C_V1]
+          description: 实时储氢模型版本；不修改日用氢算法
+        hydrogenCapacitySource:
+          type: string
+          nullable: true
+          enum: [vehicle_hydrogen_tank_capacity]
+          description: 满充容量采用的 VIN 配置数据表
+        hydrogenPercentReason:
+          type: string
+          nullable: true
+          enum: [MISSING_HYDROGEN_MEASUREMENT, INVALID_MASS_READING, INVALID_PRESSURE_TEMPERATURE, INCOMPLETE_PRESSURE_TEMPERATURE, MISSING_TANK_CAPACITY, MASS_CALCULATION_FAILED, EXCEEDS_NOMINAL_FULL_CAPACITY]
+          description: 缺少或拒绝百分比的原因；超出业务满充参考仅拒绝百分比，不伪装为100，也不据此判断车辆安全状态
+        hydrogenSourceProtocol:
+          type: string
+          nullable: true
+          enum: [GB32960, MQTT, JT808]
+          description: 储氢数据采用的协议，独立于位置的 protocol
+        hydrogenStaleAfterSeconds:
+          type: integer
+          nullable: true
+          description: GB32960 服务时效策略为 300 秒；不是协议采样周期承诺
+        hydrogenExpectedIntervalSeconds:
+          type: integer
+          nullable: true
+          description: 当前无已确认上报周期，固定 null
+        gpsFixStatus:
+          type: string
+          enum: [FIXED, NO_FIX, UNKNOWN]
+          description: 实际位置报文定位位；GB32960 bit0=0、JT808 bit1=1 表示 FIXED；MQTT 或缺少可信定位位为 UNKNOWN。不以在线或数据年龄推断
+        locationRecordTime:
+          type: string
+          format: date-time
+          nullable: true
+          description: 位置行对应实际采集时间，独立于主记录 recordTime；历史 FIXED 不因车辆离线改变
+        coordinateSystem:
+          type: string
+          enum: [WGS84, GCJ02, UNKNOWN]
+          description: 仅 GB2025 显式坐标类型 1=WGS84、2=GCJ02，其余 UNKNOWN；GB2016/JT808/MQTT 当前无确证为 UNKNOWN，未知坐标系不得直接当高德坐标使用
         protocol:
           type: string
           enum: [GB32960, MQTT, JT808]

vehicle-data-platform/apps/api/internal/openplatform/daily_statistics_interval.go

@@ -0,0 +1,64 @@
+package openplatform
+
+import (
+	"encoding/json"
+	"time"
+)
+
+// Timestamps are evidence from the persisted result, never the API clock or
+// separately evolving stream state. A missing boundary stays unknown.
+func validStatisticsTimestamp(value string) *string {
+	t, err := time.Parse(time.RFC3339Nano, value)
+	if err != nil || t.IsZero() {
+		return nil
+	}
+	normalized := t.In(time.FixedZone("CST", 8*60*60)).Format(time.RFC3339Nano)
+	return &normalized
+}
+
+func validatedStatisticsInterval(start, end string) (*string, *string) {
+	a, b := validStatisticsTimestamp(start), validStatisticsTimestamp(end)
+	if a != nil && b != nil {
+		at, _ := time.Parse(time.RFC3339Nano, *a)
+		bt, _ := time.Parse(time.RFC3339Nano, *b)
+		if at.After(bt) {
+			return nil, nil
+		}
+	}
+	return a, b
+}
+
+// FINAL evidence contains an envelope of calculation segments, not a promise
+// of uninterrupted coverage. PRELIMINARY evidence currently only stores a
+// lastEventTime watermark, so its start is intentionally null.
+func hydrogenStatisticsInterval(evidence string) (*string, *string) {
+	var live struct {
+		LastEventTime string `json:"lastEventTime"`
+	}
+	if json.Unmarshal([]byte(evidence), &live) == nil && live.LastEventTime != "" {
+		return nil, validStatisticsTimestamp(live.LastEventTime)
+	}
+	var segments []struct {
+		StartTime string `json:"startTime"`
+		EndTime   string `json:"endTime"`
+	}
+	if json.Unmarshal([]byte(evidence), &segments) != nil || len(segments) == 0 {
+		return nil, nil
+	}
+	var earliest, latest time.Time
+	for _, segment := range segments {
+		a, b := validatedStatisticsInterval(segment.StartTime, segment.EndTime)
+		if a == nil || b == nil {
+			return nil, nil
+		}
+		at, _ := time.Parse(time.RFC3339Nano, *a)
+		bt, _ := time.Parse(time.RFC3339Nano, *b)
+		if earliest.IsZero() || at.Before(earliest) {
+			earliest = at
+		}
+		if latest.IsZero() || bt.After(latest) {
+			latest = bt
+		}
+	}
+	return validatedStatisticsInterval(earliest.Format(time.RFC3339Nano), latest.Format(time.RFC3339Nano))
+}

vehicle-data-platform/apps/api/internal/openplatform/daily_statistics_interval_test.go

@@ -0,0 +1,86 @@
+package openplatform
+
+import (
+	"context"
+	"testing"
+
+	"github.com/DATA-DOG/go-sqlmock"
+)
+
+func TestHydrogenStatisticsInterval(t *testing.T) {
+	cases := []struct{ name, evidence, start, end string }{
+		{"live watermark", `{"lastEventTime":"2026-09-08T10:23:45.123Z"}`, "", "2026-09-08T18:23:45.123+08:00"},
+		{"final envelope", `[{"startTime":"2026-09-08T02:00:00+08:00","endTime":"2026-09-08T03:00:00+08:00"},{"startTime":"2026-09-08T01:00:00+08:00","endTime":"2026-09-08T01:30:00+08:00"}]`, "2026-09-08T01:00:00+08:00", "2026-09-08T03:00:00+08:00"},
+		{"missing", `null`, "", ""},
+		{"legacy empty", `[]`, "", ""},
+		{"malformed", `{`, "", ""},
+		{"reversed", `[{"startTime":"2026-09-08T03:00:00+08:00","endTime":"2026-09-08T02:00:00+08:00"}]`, "", ""},
+		{"incomplete", `[{"startTime":"2026-09-08T03:00:00+08:00"}]`, "", ""},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			a, b := hydrogenStatisticsInterval(tc.evidence)
+			if (a == nil) != (tc.start == "") || a != nil && *a != tc.start {
+				t.Fatalf("start=%v", a)
+			}
+			if (b == nil) != (tc.end == "") || b != nil && *b != tc.end {
+				t.Fatalf("end=%v", b)
+			}
+		})
+	}
+}
+
+func TestMileageStatisticsIntervalDoesNotRelabelCarryForward(t *testing.T) {
+	value := DailyMileage{Date: "2026-09-07", StatisticsStartTime: "2026-09-07T00:01:00+08:00", DataTime: "2026-09-07T23:01:00+08:00"}
+	carried := MileageResult{Date: "2026-09-08"}
+	fillMileageResult(&carried, value, 0)
+	if carried.StatisticsStartTime != nil || carried.StatisticsEndTime != nil {
+		t.Fatalf("fabricated carry interval: %+v", carried)
+	}
+	current := MileageResult{Date: value.Date}
+	fillMileageResult(&current, value, 10)
+	if current.StatisticsStartTime == nil || current.StatisticsEndTime == nil {
+		t.Fatalf("missing evidence: %+v", current)
+	}
+}
+
+func TestDailyHydrogenReadsEvidenceAndUpdateFromSameRow(t *testing.T) {
+	db, mock, err := sqlmock.New()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+	mock.ExpectQuery("SELECT vin,DATE_FORMAT.*COALESCE\\(evidence_json,'null'\\).*DATE_FORMAT\\(updated_at").WithArgs("2026-09-08", "VIN1").WillReturnRows(sqlmock.NewRows([]string{"vin", "date", "consumption", "samples", "quality", "reason", "phase", "algorithm", "evidence", "updated"}).AddRow("VIN1", "2026-09-08", 0, 2, "OK", "", "PRELIMINARY", "V3_5", `{"lastEventTime":"2026-09-08T10:00:00+08:00"}`, "2026-09-08T10:01:00.123000+08:00"))
+	values, err := NewMySQLRepository(db).DailyHydrogen(context.Background(), []string{"VIN1"}, "2026-09-08")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if values["VIN1"].EvidenceJSON == "" || values["VIN1"].UpdatedAt == "" {
+		t.Fatal(values)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestDailyQueryRejectsSameCountWrongAuthorizationMembership(t *testing.T) {
+	repo := &fakeRepository{app: AppCredential{ID: 7}, vehicles: map[string]AuthorizedVehicle{"粤B67890": {VIN: "LTEST32960VIN0002", Plate: "粤B67890"}}}
+	_, err := NewService(repo).QueryHydrogen(context.Background(), "0123456789abcdef0123456789abcdef", "trace", QueryRequest{PlateNumbers: []string{"粤A12345"}, Date: "2026-07-01"})
+	if err != ErrForbidden {
+		t.Fatalf("authorization membership mismatch must fail closed: %v", err)
+	}
+	if len(repo.dailyVINs) != 0 {
+		t.Fatalf("queried data after failed authorization: %v", repo.dailyVINs)
+	}
+}
+
+func TestDailyQueryIgnoresUnrequestedVINResults(t *testing.T) {
+	repo := &fakeRepository{app: AppCredential{ID: 7}, vehicles: map[string]AuthorizedVehicle{"粤A12345": {VIN: "LTEST32960VIN0001", Plate: "粤A12345"}}, hydrogen: map[string]DailyHydrogen{"LTEST32960VIN0002": {ConsumptionKg: 99, QualityStatus: "OK"}}}
+	rows, err := NewService(repo).QueryHydrogen(context.Background(), "0123456789abcdef0123456789abcdef", "trace", QueryRequest{PlateNumbers: []string{"粤A12345"}, Date: "2026-07-01"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(rows) != 1 || rows[0].VIN != "LTEST32960VIN0001" || rows[0].HydrogenConsumptionKg != nil {
+		t.Fatalf("unexpected VIN leaked: %+v", rows)
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/docs_test.go

@@ -79,3 +79,56 @@ func TestOpenAPISpecCoversPublicAndManagementEndpoints(t *testing.T) {
 		}
 	}
 }
+
+func TestLiveContractDocumentationCoversSerializedFieldsAndQuality(t *testing.T) {
+	// Public additions must be discoverable in both the machine contract and the
+	// human-readable documentation, including their null/quality companions.
+	for _, field := range []string{
+		"remainingHydrogenKg", "remainingHydrogenPercent", "hydrogenRecordTime",
+		"hydrogenDataStatus", "remainingHydrogenKgStatus", "remainingHydrogenPercentStatus",
+		"hydrogenValueSource", "hydrogenSourceProtocol", "hydrogenStaleAfterSeconds",
+		"hydrogenExpectedIntervalSeconds", "gpsFixStatus", "locationRecordTime",
+		"coordinateSystem", "statisticsStartTime", "statisticsEndTime",
+		"updatedAt", "calculationPhase", "qualityStatus", "algorithmVersion",
+		"remainingHydrogenPercentSource", "hydrogenFullCapacityKg", "hydrogenTankCapacityL",
+		"hydrogenFullPressureMPa", "hydrogenReferenceTemperatureC", "hydrogenEstimatePressureMPa",
+		"hydrogenEstimateTemperatureC", "hydrogenPressureTemperatureSource", "hydrogenCalculationVersion",
+		"hydrogenCapacitySource", "hydrogenPercentReason",
+	} {
+		if !strings.Contains(string(openAPISpec), field+":") {
+			t.Errorf("OpenAPI missing live contract field %s", field)
+		}
+		if !strings.Contains(string(simpleDocsHTML), field) {
+			t.Errorf("HTML missing live contract field %s", field)
+		}
+	}
+	for name, doc := range map[string]string{"OpenAPI": string(openAPISpec), "HTML": string(simpleDocsHTML)} {
+		for _, boundary := range []string{"PARTIAL", "UNSUPPORTED", "UNKNOWN", "PRELIMINARY", "FINAL", "SUSPECT", "REPORTED", "ESTIMATED", "MAX_SENSOR_AGGREGATE", "EXCEEDS_NOMINAL_FULL_CAPACITY", "REAL_GAS_35MPA_15C_V1", "共同快照", "null"} {
+			if !strings.Contains(doc, boundary) {
+				t.Errorf("%s missing availability/comparability boundary %q", name, boundary)
+			}
+		}
+	}
+	if strings.Contains(string(openAPISpec), "MEASURED") || strings.Contains(string(simpleDocsHTML), "MEASURED") {
+		t.Error("reported hydrogen must not promise a measured terminal value")
+	}
+	if strings.Contains(string(simpleDocsHTML), "新接入请使用 sourceProtocol") {
+		t.Error("HTML must not advertise sourceProtocol as realtime field")
+	}
+}
+
+func TestHistoricalHydrogenDocumentationDefinesEvidenceAndFailureBoundaries(t *testing.T) {
+	for name, doc := range map[string]string{"OpenAPI": string(openAPISpec), "HTML": string(simpleDocsHTML)} {
+		for _, want := range []string{
+			"/api/v1/vehicles/hydrogen-remaining/history/query",
+			"requestId", "maxTimeDifferenceSeconds", "sourceRecordId",
+			"hydrogenCapacityVersion", "sourceDataVersion", "reasonCode", "2026-08-01", "FORBIDDEN", "ERROR",
+			"STALE", "429", "Retry-After", "event_time", "历史容量", "非原子",
+			"20个不同点", "去重",
+		} {
+			if !strings.Contains(doc, want) {
+				t.Errorf("%s missing history contract evidence/failure boundary %q", name, want)
+			}
+		}
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/handler.go

@@ -59,6 +59,7 @@ func NewExternalHandler(service *Service, portal *PortalService) *Handler {
 
 func (h *Handler) registerExternalDataRoutes() {
 	h.mux.HandleFunc("POST "+HydrogenQueryPath, h.hydrogen)
+	h.mux.HandleFunc("POST "+HistoricalHydrogenQueryPath, h.historicalHydrogen)
 	h.mux.HandleFunc("POST "+MileageQueryPath, h.mileage)
 	h.mux.HandleFunc("POST "+MileageRangeQueryPath, h.mileageRange)
 	h.mux.HandleFunc("POST "+TotalMileageQueryPath, h.totalMileage)
@@ -109,6 +110,7 @@ func (h *Handler) registerPortalRoutes() {
 func NewDataHandler(service *Service) *Handler {
 	handler := &Handler{service: service, mux: http.NewServeMux()}
 	handler.mux.HandleFunc("POST "+HydrogenQueryPath, handler.hydrogen)
+	handler.mux.HandleFunc("POST "+HistoricalHydrogenQueryPath, handler.historicalHydrogen)
 	handler.mux.HandleFunc("POST "+MileageQueryPath, handler.mileage)
 	handler.mux.HandleFunc("POST "+MileageRangeQueryPath, handler.mileageRange)
 	handler.mux.HandleFunc("POST "+TotalMileageQueryPath, handler.totalMileage)
@@ -123,7 +125,7 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 }
 
 func IsPublicPath(path string) bool {
-	return path == HydrogenQueryPath || path == MileageQueryPath || path == MileageRangeQueryPath || path == TotalMileageQueryPath || path == StationaryVehicleQueryPath || path == RealtimeVehicleQueryPath || path == HydrogenStationQueryPath
+	return path == HistoricalHydrogenQueryPath || path == HydrogenQueryPath || path == MileageQueryPath || path == MileageRangeQueryPath || path == TotalMileageQueryPath || path == StationaryVehicleQueryPath || path == RealtimeVehicleQueryPath || path == HydrogenStationQueryPath
 }
 
 func (h *Handler) stationaryVehicles(w http.ResponseWriter, r *http.Request) {
@@ -754,6 +756,7 @@ func requestRemoteAddress(r *http.Request) string {
 
 func dataProducts() []DataProduct {
 	return []DataProduct{
+		{Code: "historical_hydrogen_remaining", Name: "历史剩余氢质量", Description: "按VIN与历史北京时间批量查询全车剩余氢质量、采样时间及来源证据。", Version: "v1", Status: "available", Method: http.MethodPost, Path: HistoricalHydrogenQueryPath, Unit: "kg"},
 		{
 			Code: "daily_hydrogen", Name: "单日用氢量",
 			Description: "按车牌和自然日查询授权车辆的氢气消耗量。",

vehicle-data-platform/apps/api/internal/openplatform/historical_hydrogen.go

@@ -0,0 +1,389 @@
+package openplatform
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha256"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"math"
+	"net/http"
+	"regexp"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"lingniu/vehicle-data-platform/apps/api/internal/vehicleprotocol"
+)
+
+const HistoricalHydrogenQueryPath = "/api/v1/vehicles/hydrogen-remaining/history/query"
+const historicalHydrogenBudget = 9 * time.Second
+
+var historicalVINPattern = regexp.MustCompile(`^[A-HJ-NPR-Z0-9]{17}$`)
+
+type HistoricalHydrogenQuery struct {
+	RequestID string `json:"requestId"`
+	VIN       string `json:"vin"`
+	Time      string `json:"time"`
+	Protocol  string `json:"protocol,omitempty"`
+}
+type HistoricalHydrogenRequest struct {
+	Queries                  []HistoricalHydrogenQuery `json:"queries"`
+	MaxTimeDifferenceSeconds *int                      `json:"maxTimeDifferenceSeconds,omitempty"`
+}
+
+// Optional numeric/protocol fields may be omitted, but explicit JSON null is
+// not a valid integer or protocol identifier. Preserve strict unknown-field
+// rejection even though this request has a custom decoder.
+func (r *HistoricalHydrogenRequest) UnmarshalJSON(data []byte) error {
+	type plain HistoricalHydrogenRequest
+	var decoded plain
+	decoder := json.NewDecoder(bytes.NewReader(data))
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(&decoded); err != nil {
+		return err
+	}
+	var raw map[string]json.RawMessage
+	if err := json.Unmarshal(data, &raw); err != nil {
+		return err
+	}
+	if value, exists := raw["maxTimeDifferenceSeconds"]; exists && bytes.Equal(bytes.TrimSpace(value), []byte("null")) {
+		return fmt.Errorf("maxTimeDifferenceSeconds must be an integer")
+	}
+	var queries []map[string]json.RawMessage
+	if err := json.Unmarshal(raw["queries"], &queries); err != nil {
+		return err
+	}
+	for _, query := range queries {
+		if value, exists := query["protocol"]; exists && bytes.Equal(bytes.TrimSpace(value), []byte("null")) {
+			return fmt.Errorf("protocol must be a string")
+		}
+	}
+	*r = HistoricalHydrogenRequest(decoded)
+	return nil
+}
+
+type HistoricalHydrogenResult struct {
+	RequestID                         string   `json:"requestId"`
+	VIN                               string   `json:"vin"`
+	PlateNumber                       *string  `json:"plateNumber"`
+	QueryTime                         string   `json:"queryTime"`
+	RemainingHydrogenKg               *float64 `json:"remainingHydrogenKg"`
+	HydrogenRecordTime                *string  `json:"hydrogenRecordTime"`
+	TimeDifferenceSeconds             *float64 `json:"timeDifferenceSeconds"`
+	RemainingHydrogenKgStatus         string   `json:"remainingHydrogenKgStatus"`
+	HydrogenValueSource               *string  `json:"hydrogenValueSource"`
+	HydrogenSourceProtocol            *string  `json:"hydrogenSourceProtocol"`
+	SourceRecordID                    *string  `json:"sourceRecordId"`
+	SourceDataVersion                 *string  `json:"sourceDataVersion"`
+	HydrogenCalculationVersion        *string  `json:"hydrogenCalculationVersion"`
+	HydrogenCapacityVersion           *string  `json:"hydrogenCapacityVersion"`
+	UpdatedAt                         *string  `json:"updatedAt"`
+	ReasonCode                        *string  `json:"reasonCode"`
+	Message                           *string  `json:"message"`
+	HydrogenEstimatePressureMPa       *float64 `json:"hydrogenEstimatePressureMPa"`
+	HydrogenEstimateTemperatureC      *float64 `json:"hydrogenEstimateTemperatureC"`
+	HydrogenTankCapacityL             *float64 `json:"hydrogenTankCapacityL"`
+	HydrogenPressureTemperatureSource *string  `json:"hydrogenPressureTemperatureSource"`
+}
+
+type HistoricalHydrogenRepository interface {
+	HistoricalHydrogen(context.Context, string, time.Time, string) (*HistoricalHydrogenPoint, error)
+	HistoricalHydrogenAuthorized(context.Context, uint64, string, time.Time, time.Time) (bool, error)
+}
+
+type parsedHistoricalHydrogenQuery struct {
+	HistoricalHydrogenQuery
+	at time.Time
+}
+
+func (s *Service) validateHistoricalHydrogen(request HistoricalHydrogenRequest, now time.Time) ([]parsedHistoricalHydrogenQuery, int, error) {
+	if len(request.Queries) < 1 || len(request.Queries) > 200 {
+		return nil, 0, fmt.Errorf("%w: queries must contain 1-200 items", ErrInvalidRequest)
+	}
+	tolerance := 300
+	if request.MaxTimeDifferenceSeconds != nil {
+		tolerance = *request.MaxTimeDifferenceSeconds
+	}
+	if tolerance < 0 || tolerance > 300 {
+		return nil, 0, fmt.Errorf("%w: tolerance must be 0-300", ErrInvalidRequest)
+	}
+	seen := make(map[string]bool, len(request.Queries))
+	parsed := make([]parsedHistoricalHydrogenQuery, 0, len(request.Queries))
+	lower := time.Date(2026, 8, 1, 0, 0, 0, 0, s.location)
+	for _, query := range request.Queries {
+		if strings.TrimSpace(query.RequestID) == "" || len(query.RequestID) > 128 || seen[query.RequestID] {
+			return nil, 0, fmt.Errorf("%w: requestId must be nonempty and unique", ErrInvalidRequest)
+		}
+		seen[query.RequestID] = true
+		query.VIN = strings.ToUpper(query.VIN)
+		if !historicalVINPattern.MatchString(query.VIN) {
+			return nil, 0, fmt.Errorf("%w: invalid vin", ErrInvalidRequest)
+		}
+		at, err := time.ParseInLocation("2006-01-02 15:04:05", query.Time, s.location)
+		if err != nil || at.Format("2006-01-02 15:04:05") != query.Time {
+			return nil, 0, fmt.Errorf("%w: invalid datetime", ErrInvalidRequest)
+		}
+		if at.After(now) || at.Before(lower) {
+			return nil, 0, fmt.Errorf("%w: time outside supported history", ErrInvalidRequest)
+		}
+		if query.Protocol == "" {
+			query.Protocol = vehicleprotocol.GB32960
+		} else if protocol, ok := vehicleprotocol.Canonical(query.Protocol); !ok || protocol != query.Protocol {
+			return nil, 0, fmt.Errorf("%w: invalid protocol", ErrInvalidRequest)
+		}
+		parsed = append(parsed, parsedHistoricalHydrogenQuery{HistoricalHydrogenQuery: query, at: at})
+	}
+	return parsed, tolerance, nil
+}
+
+func (s *Service) QueryHistoricalHydrogen(ctx context.Context, appKey, traceID string, request HistoricalHydrogenRequest) ([]HistoricalHydrogenResult, error) {
+	now := s.now().In(s.location)
+	queries, tolerance, err := s.validateHistoricalHydrogen(request, now)
+	if err != nil {
+		return nil, err
+	}
+	if !appKeyPattern.MatchString(appKey) {
+		return nil, ErrUnauthorized
+	}
+	bounded, cancel := context.WithTimeout(ctx, historicalHydrogenBudget)
+	defer cancel()
+	app, err := s.repository.Authenticate(bounded, sha256.Sum256([]byte(strings.ToLower(appKey))), now, now, now)
+	if err != nil {
+		if errors.Is(err, ErrUnauthorized) {
+			return nil, ErrUnauthorized
+		}
+		return nil, err
+	}
+	release, err := s.historicalLimiter.acquire(app.ID, now)
+	if err != nil {
+		return nil, err
+	}
+	defer release()
+	results := make([]HistoricalHydrogenResult, len(queries))
+	for i, query := range queries {
+		results[i] = historicalHydrogenFailure(query, "ERROR", "UPSTREAM_TIMEOUT", "历史查询超时，请重试")
+	}
+	repository, ok := s.repository.(HistoricalHydrogenRepository)
+	if !ok {
+		for i, query := range queries {
+			results[i] = historicalHydrogenFailure(query, "ERROR", "HISTORY_UNAVAILABLE", "历史数据服务暂不可用")
+		}
+		return results, nil
+	}
+	// Deduplicate identical sampling points within this batch. Every requestId
+	// still receives its own result, while duplicate endpoints share one source
+	// revision and one pair of authorization checks.
+	var unique []parsedHistoricalHydrogenQuery
+	var destinations [][]int
+	indexes := make(map[string]int, len(queries))
+	for i, query := range queries {
+		key := query.VIN + "\x00" + query.Time + "\x00" + query.Protocol
+		index, exists := indexes[key]
+		if !exists {
+			index = len(unique)
+			indexes[key] = index
+			unique = append(unique, query)
+			destinations = append(destinations, nil)
+		}
+		destinations[index] = append(destinations[index], i)
+	}
+	type completed struct {
+		index  int
+		result HistoricalHydrogenResult
+	}
+	jobs := make(chan int, len(unique))
+	out := make(chan completed, len(unique))
+	for i := range unique {
+		jobs <- i
+	}
+	close(jobs)
+	workers := 4
+	if len(unique) < workers {
+		workers = len(unique)
+	}
+	for worker := 0; worker < workers; worker++ {
+		go func() {
+			for i := range jobs {
+				if bounded.Err() != nil {
+					return
+				}
+				out <- completed{i, s.queryHistoricalHydrogenItem(bounded, repository, app.ID, unique[i], tolerance, now)}
+			}
+		}()
+	}
+	for count := 0; count < len(unique); count++ {
+		select {
+		case result := <-out:
+			for _, destination := range destinations[result.index] {
+				item := result.result
+				item.RequestID = queries[destination].RequestID
+				results[destination] = item
+			}
+		case <-bounded.Done():
+			return results, nil
+		}
+	}
+	// Use the remaining shared budget; avoid extending a timed-out batch for audit.
+	if bounded.Err() == nil {
+		_ = s.repository.Audit(bounded, app.ID, "historical_hydrogen_query", "success", traceID, len(results), "")
+	}
+	return results, nil
+}
+
+func historicalHydrogenFailure(query parsedHistoricalHydrogenQuery, status, reason, message string) HistoricalHydrogenResult {
+	return HistoricalHydrogenResult{RequestID: query.RequestID, VIN: query.VIN, QueryTime: query.Time, RemainingHydrogenKgStatus: status, ReasonCode: historicalString(reason), Message: historicalString(message)}
+}
+func historicalString(value string) *string {
+	if value == "" {
+		return nil
+	}
+	return &value
+}
+func historicalTime(value time.Time, location *time.Location) *string {
+	if value.IsZero() {
+		return nil
+	}
+	text := value.In(location).Format(time.RFC3339Nano)
+	return &text
+}
+
+func (s *Service) queryHistoricalHydrogenItem(ctx context.Context, repository HistoricalHydrogenRepository, appID uint64, query parsedHistoricalHydrogenQuery, tolerance int, now time.Time) HistoricalHydrogenResult {
+	failure := func(err error) HistoricalHydrogenResult {
+		if errors.Is(err, context.DeadlineExceeded) || errors.Is(err, context.Canceled) {
+			return historicalHydrogenFailure(query, "ERROR", "UPSTREAM_TIMEOUT", "历史查询超时，请重试")
+		}
+		return historicalHydrogenFailure(query, "ERROR", "UPSTREAM_FAILURE", "历史查询失败，请重试")
+	}
+	allowed, err := repository.HistoricalHydrogenAuthorized(ctx, appID, query.VIN, query.at, now)
+	if err != nil {
+		return failure(err)
+	}
+	if !allowed {
+		return historicalHydrogenFailure(query, "FORBIDDEN", "HISTORY_FORBIDDEN", "车辆或历史时刻未授权")
+	}
+	if query.Protocol != vehicleprotocol.GB32960 {
+		return historicalHydrogenFailure(query, "UNSUPPORTED", "PROTOCOL_UNSUPPORTED", "该协议暂不支持历史储氢质量")
+	}
+	point, err := repository.HistoricalHydrogen(ctx, query.VIN, query.at, query.Protocol)
+	if err != nil {
+		return failure(err)
+	}
+	if point == nil {
+		return historicalHydrogenFailure(query, "NO_DATA", "NO_HISTORICAL_SAMPLE", "查询时刻前没有历史储氢采样")
+	}
+	if point.VIN != query.VIN || point.Protocol != query.Protocol {
+		return historicalHydrogenFailure(query, "ERROR", "SOURCE_IDENTITY_MISMATCH", "历史采样身份不一致")
+	}
+	if point.ObservedAt.IsZero() || point.ObservedAt.After(query.at) {
+		return historicalHydrogenFailure(query, "ERROR", "INVALID_SAMPLE_TIME", "历史采样时间不符合查询条件")
+	}
+	allowed, err = repository.HistoricalHydrogenAuthorized(ctx, appID, query.VIN, point.ObservedAt, now)
+	if err != nil {
+		return failure(err)
+	}
+	if !allowed {
+		return historicalHydrogenFailure(query, "FORBIDDEN", "HISTORY_FORBIDDEN", "车辆或历史时刻未授权")
+	}
+	result := HistoricalHydrogenResult{RequestID: query.RequestID, VIN: query.VIN, QueryTime: query.Time, RemainingHydrogenKgStatus: point.Status, HydrogenRecordTime: historicalTime(point.ObservedAt, s.location), HydrogenValueSource: historicalString(point.ValueSource), HydrogenSourceProtocol: historicalString(point.Protocol), SourceRecordID: historicalString(point.RecordID), SourceDataVersion: historicalString(point.SourceDataVersion), HydrogenCalculationVersion: historicalString(point.CalculationVersion), HydrogenCapacityVersion: historicalString(point.CapacityVersion), UpdatedAt: historicalTime(point.UpdatedAt, s.location), ReasonCode: historicalString(point.ReasonCode), Message: historicalString(point.Message), HydrogenEstimatePressureMPa: point.EstimatePressureMPa, HydrogenEstimateTemperatureC: point.EstimateTemperatureC, HydrogenTankCapacityL: point.TankCapacityL, HydrogenPressureTemperatureSource: historicalString(point.PressureTemperatureSource)}
+	difference := query.at.Sub(point.ObservedAt).Seconds()
+	result.TimeDifferenceSeconds = &difference
+	switch result.RemainingHydrogenKgStatus {
+	case "NORMAL", "NO_DATA", "MISSING", "STALE", "UNSUPPORTED", "INVALID":
+	default:
+		return historicalHydrogenFailure(query, "ERROR", "INVALID_SOURCE_STATUS", "历史数据状态异常")
+	}
+	if result.RemainingHydrogenKgStatus == "NORMAL" {
+		if point.RemainingHydrogenKg == nil {
+			result.RemainingHydrogenKgStatus = "MISSING"
+			result.ReasonCode = historicalString("MISSING_MASS")
+		} else if math.IsNaN(*point.RemainingHydrogenKg) || math.IsInf(*point.RemainingHydrogenKg, 0) || *point.RemainingHydrogenKg < 0 {
+			result.RemainingHydrogenKgStatus = "INVALID"
+			result.ReasonCode = historicalString("INVALID_MASS")
+		} else if difference > float64(tolerance) {
+			result.RemainingHydrogenKgStatus = "STALE"
+			result.ReasonCode = historicalString("SAMPLE_OUTSIDE_TOLERANCE")
+			result.Message = historicalString("采样时间早于允许容差")
+		} else if point.ValueSource == "ESTIMATED" && (point.CalculationVersion == "" || point.CapacityVersion == "" || point.EstimatePressureMPa == nil || point.EstimateTemperatureC == nil || point.TankCapacityL == nil || point.PressureTemperatureSource == "") {
+			result.RemainingHydrogenKgStatus = "MISSING"
+			result.ReasonCode = historicalString("MISSING_ESTIMATE_EVIDENCE")
+		} else {
+			value := *point.RemainingHydrogenKg
+			result.RemainingHydrogenKg = &value
+		}
+	}
+	return result
+}
+
+func (r *MySQLRepository) HistoricalHydrogenAuthorized(ctx context.Context, appID uint64, vin string, at, now time.Time) (bool, error) {
+	var exists bool
+	err := r.db.QueryRowContext(ctx, `SELECT EXISTS(SELECT 1 FROM vehicle_open_app a JOIN vehicle_open_app_vehicle g ON g.app_id=a.id WHERE a.id=? AND a.status='enabled' AND a.valid_from<=? AND (a.valid_to IS NULL OR a.valid_to>?) AND a.valid_from<=? AND (a.valid_to IS NULL OR a.valid_to>?) AND BINARY g.vin=BINARY ? AND g.valid_from<=? AND (g.valid_to IS NULL OR g.valid_to>?))`, appID, now, now, at, at, vin, at, at).Scan(&exists)
+	return exists, err
+}
+
+type historicalHydrogenRateError struct{ RetryAfter int }
+
+func (e *historicalHydrogenRateError) Error() string {
+	return "historical hydrogen rate limit exceeded"
+}
+
+type historicalHydrogenRateEntry struct {
+	start         time.Time
+	count, active int
+}
+type historicalHydrogenLimiter struct {
+	mu      sync.Mutex
+	entries map[uint64]*historicalHydrogenRateEntry
+}
+
+func (l *historicalHydrogenLimiter) acquire(appID uint64, now time.Time) (func(), error) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+	if l.entries == nil {
+		l.entries = make(map[uint64]*historicalHydrogenRateEntry)
+	}
+	for id, entry := range l.entries {
+		if entry.active == 0 && now.Sub(entry.start) >= 2*time.Minute {
+			delete(l.entries, id)
+		}
+	}
+	entry := l.entries[appID]
+	if entry == nil {
+		entry = &historicalHydrogenRateEntry{start: now}
+		l.entries[appID] = entry
+	}
+	if now.Sub(entry.start) >= time.Minute {
+		entry.start = now
+		entry.count = 0
+	}
+	if entry.active >= 2 {
+		return nil, &historicalHydrogenRateError{RetryAfter: 1}
+	}
+	if entry.count >= 30 {
+		return nil, &historicalHydrogenRateError{RetryAfter: max(1, int(math.Ceil(time.Minute.Seconds()-now.Sub(entry.start).Seconds())))}
+	}
+	entry.count++
+	entry.active++
+	return func() { l.mu.Lock(); entry.active--; l.mu.Unlock() }, nil
+}
+func (h *Handler) historicalHydrogen(w http.ResponseWriter, r *http.Request) {
+	traceID := externalTraceID(r)
+	var request HistoricalHydrogenRequest
+	if !decodeExternalBody(w, r, traceID, &request) {
+		return
+	}
+	data, err := h.service.QueryHistoricalHydrogen(r.Context(), externalBearer(r), traceID, request)
+	if err != nil {
+		var limit *historicalHydrogenRateError
+		if errors.As(err, &limit) {
+			w.Header().Set("Retry-After", strconv.Itoa(limit.RetryAfter))
+			writeExternal(w, http.StatusTooManyRequests, ExternalResponse{Code: "RATE_LIMITED", Message: "请求过于频繁，请稍后重试", TraceID: traceID})
+			return
+		}
+		writeExternalError(w, traceID, err)
+		return
+	}
+	writeExternal(w, http.StatusOK, ExternalResponse{Code: "SUCCESS", Message: "success", Data: data, TraceID: traceID})
+}

vehicle-data-platform/apps/api/internal/openplatform/historical_hydrogen_acceptance_test.go

@@ -0,0 +1,39 @@
+package openplatform
+
+import (
+	"context"
+	"testing"
+	"time"
+)
+
+func TestHistoricalHydrogenCrossMidnightKeepsInstantAndRevisionEvidence(t *testing.T) {
+	service, repository, _ := historicalTestService()
+	start := time.Date(2026, 8, 3, 23, 59, 55, 0, service.location)
+	end := start.Add(20 * time.Second)
+	repository.lookup = func(_ context.Context, _ string, at time.Time, _ string) (*HistoricalHydrogenPoint, error) {
+		point := historicalTestPoint(at, 30.50012345)
+		point.RecordID = at.Format(time.RFC3339)
+		if at.Equal(end) {
+			point.RemainingHydrogenKg = realLiveFloat(29.80012345)
+			point.SourceDataVersion = "end-v2"
+		}
+		return point, nil
+	}
+	request := HistoricalHydrogenRequest{Queries: []HistoricalHydrogenQuery{
+		{RequestID: "job-end", VIN: historicalTestVIN, Time: end.Format("2006-01-02 15:04:05")},
+		{RequestID: "job-start", VIN: historicalTestVIN, Time: start.Format("2006-01-02 15:04:05")},
+	}}
+	results, err := service.QueryHistoricalHydrogen(context.Background(), historicalTestKey, "cross-midnight", request)
+	if err != nil || len(results) != 2 {
+		t.Fatalf("%+v %v", results, err)
+	}
+	for i, at := range []time.Time{end, start} {
+		got := results[i]
+		if got.RequestID != request.Queries[i].RequestID || got.QueryTime != request.Queries[i].Time || got.HydrogenRecordTime == nil || *got.HydrogenRecordTime != at.Format(time.RFC3339) || got.RemainingHydrogenKgStatus != "NORMAL" || *got.TimeDifferenceSeconds != 0 {
+			t.Fatalf("midnight instant lost: %+v", got)
+		}
+	}
+	if *results[0].RemainingHydrogenKg != 29.80012345 || *results[1].RemainingHydrogenKg != 30.50012345 || *results[0].SourceRecordID == *results[1].SourceRecordID || *results[0].SourceDataVersion == *results[1].SourceDataVersion {
+		t.Fatal("endpoint precision or distinct provenance lost")
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/historical_hydrogen_repository.go

@@ -0,0 +1,239 @@
+package openplatform
+
+import (
+	"context"
+	"crypto/sha256"
+	"database/sql"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// HistoricalHydrogenStart is the first supported event-time boundary. This is
+// an API coverage boundary, not a claim that every VIN has retained records.
+var HistoricalHydrogenStart = time.Date(2026, 8, 1, 0, 0, 0, 0, time.FixedZone("Asia/Shanghai", 8*60*60))
+
+type HistoricalHydrogenPoint struct {
+	VIN, Protocol, RecordID, SourceDataVersion                                    string
+	ObservedAt, ReceivedAt, UpdatedAt                                             time.Time
+	RemainingHydrogenKg                                                           *float64
+	Status, ValueSource, CalculationVersion, CapacityVersion, ReasonCode, Message string
+	EstimatePressureMPa, EstimateTemperatureC, TankCapacityL                      *float64
+	PressureTemperatureSource                                                     string
+}
+
+type historicalHydrogenFrame struct {
+	VIN, Protocol, EventID, FrameID, Parsed, ParseStatus string
+	EventMS, ReceivedMS, TimestampMS                     sql.NullInt64
+}
+
+func (r *MySQLRepository) HistoricalHydrogen(ctx context.Context, vin string, at time.Time, protocol string) (*HistoricalHydrogenPoint, error) {
+	if protocol == "" {
+		protocol = "GB32960"
+	}
+	if protocol != "GB32960" {
+		return &HistoricalHydrogenPoint{VIN: vin, Protocol: protocol, Status: "UNSUPPORTED", ReasonCode: "UNSUPPORTED_HYDROGEN_PROTOCOL", Message: "该协议暂不支持历史剩余氢质量"}, nil
+	}
+	if r.tdengine == nil {
+		return nil, errors.New("TDengine is not configured for historical hydrogen query")
+	}
+	query, err := historicalHydrogenQuery(r.tdDatabase, vin, at, protocol)
+	if err != nil {
+		return nil, err
+	}
+	for candidate := 0; candidate < 32; candidate++ {
+		var frame historicalHydrogenFrame
+		frame, err = r.loadHistoricalHydrogenCandidate(ctx, query)
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		if err != nil {
+			return nil, err
+		}
+		if frame.VIN != vin || frame.Protocol != protocol {
+			return nil, errors.New("historical hydrogen source identity mismatch")
+		}
+		if err := r.hydrateHistoricalHydrogenFrame(ctx, &frame); err != nil {
+			return nil, err
+		}
+		point := historicalHydrogenFromFrame(frame)
+		if point.ObservedAt.IsZero() || point.ObservedAt.After(at) || point.ObservedAt.Before(HistoricalHydrogenStart) {
+			return nil, errors.New("historical hydrogen source time out of bounds")
+		}
+		if point.ReasonCode != "MISSING_HYDROGEN_MEASUREMENT" {
+			return &point, nil
+		}
+		// A hydrated chunk can prove that a candidate has no hydrogen fields. Only
+		// in that case move to the next record; invalid/incomplete readings stop.
+		clause := fmt.Sprintf(" AND (event_time<%d OR (event_time=%d AND ts<%d))", frame.EventMS.Int64, frame.EventMS.Int64, frame.TimestampMS.Int64)
+		query = strings.Replace(query, " ORDER BY", clause+" ORDER BY", 1)
+	}
+	return nil, errors.New("historical hydrogen candidate budget exceeded")
+}
+
+func historicalHydrogenQuery(database, vin string, at time.Time, protocol string) (string, error) {
+	if !validTDIdentifier(database) || vin == "" || protocol != "GB32960" || at.Before(HistoricalHydrogenStart) {
+		return "", errors.New("invalid historical hydrogen query")
+	}
+	quote := func(s string) string { return "'" + strings.ReplaceAll(s, "'", "''") + "'" }
+	fields := []string{`parsed_json LIKE '%"chunked":true%'`}
+	for _, key := range append(append([]string{}, hydrogenMassFields...), realtimeHydrogenPressureField, realtimeHydrogenTemperatureField) {
+		fields = append(fields, "parsed_json LIKE "+quote("%\""+key+"\":%"))
+	}
+	// Raw rows are JSON-marshaled by ingestion (compact key-colon syntax). Do not
+	// filter invalid values/parse status or restrict arrival <= query event time:
+	// a delayed upload remains valid historical evidence for its collection time.
+	return `SELECT vin,protocol,event_id,frame_id,CAST(event_time AS BIGINT),CAST(received_at AS BIGINT),CAST(ts AS BIGINT),parsed_json,parse_status FROM ` + database + `.raw_frames WHERE vin=` + quote(vin) + ` AND protocol=` + quote(protocol) + ` AND event_time>=` + strconv.FormatInt(HistoricalHydrogenStart.UnixMilli(), 10) + ` AND event_time<=` + strconv.FormatInt(at.UnixMilli(), 10) + ` AND (` + strings.Join(fields, " OR ") + `) ORDER BY event_time DESC,ts DESC LIMIT 2`, nil
+}
+
+func historicalHydrogenFromFrame(frame historicalHydrogenFrame) HistoricalHydrogenPoint {
+	point := HistoricalHydrogenPoint{VIN: frame.VIN, Protocol: frame.Protocol, Status: "MISSING"}
+	if frame.EventMS.Valid && frame.EventMS.Int64 > 0 {
+		point.ObservedAt = time.UnixMilli(frame.EventMS.Int64)
+	}
+	if frame.ReceivedMS.Valid && frame.ReceivedMS.Int64 > 0 {
+		point.ReceivedAt = time.UnixMilli(frame.ReceivedMS.Int64)
+		point.UpdatedAt = point.ReceivedAt
+	}
+	// The content fingerprint exposes corrections even if storage keeps the
+	// original arrival timestamp. It is not part of calculation comparability.
+	identity := sha256.Sum256([]byte(fmt.Sprintf("%s\x00%s\x00%s\x00%s\x00%d\x00%d", frame.VIN, frame.Protocol, frame.EventID, frame.FrameID, frame.EventMS.Int64, frame.TimestampMS.Int64)))
+	point.RecordID = "raw-sha256:" + hex.EncodeToString(identity[:])
+	content := sha256.Sum256([]byte(frame.Parsed + "\x00" + frame.ParseStatus))
+	point.SourceDataVersion = "sha256:" + hex.EncodeToString(content[:])
+	fail := func(status, reason, message string) HistoricalHydrogenPoint {
+		point.Status = status
+		point.ReasonCode = reason
+		point.Message = message
+		return point
+	}
+	if frame.ParseStatus != "OK" {
+		return fail("INVALID", "RAW_FRAME_PARSE_FAILED", "历史原始记录解析异常")
+	}
+	var fields map[string]any
+	if json.Unmarshal([]byte(frame.Parsed), &fields) != nil {
+		return fail("INVALID", "INVALID_RAW_JSON", "历史原始数据格式异常")
+	}
+	for _, key := range hydrogenMassFields {
+		value, exists := fields[key]
+		if !exists {
+			continue
+		}
+		mass, valid := numericValue(value)
+		point.ValueSource = "REPORTED"
+		point.CalculationVersion = "REPORTED_HYDROGEN_KG_V1"
+		if !valid || math.IsNaN(mass) || math.IsInf(mass, 0) || mass < 0 || mass > 200 {
+			return fail("INVALID", "INVALID_MASS_READING", "历史剩余氢质量读数无效")
+		}
+		point.RemainingHydrogenKg = &mass
+		point.Status = "NORMAL"
+		return point
+	}
+	pv, pExists := fields[realtimeHydrogenPressureField]
+	tv, tExists := fields[realtimeHydrogenTemperatureField]
+	if !pExists && !tExists {
+		return fail("MISSING", "MISSING_HYDROGEN_MEASUREMENT", "历史原始记录缺少氢质量及温压")
+	}
+	pressure, pOK := numericValue(pv)
+	temperature, tOK := numericValue(tv)
+	if (pExists && (!pOK || !finiteRealtime(pressure) || pressure < 0 || pressure > 70)) || (tExists && (!tOK || !finiteRealtime(temperature) || temperature < -40 || temperature > 726.85)) {
+		return fail("INVALID", "INVALID_PRESSURE_TEMPERATURE", "历史温度或压力读数无效")
+	}
+	if !pExists || !tExists {
+		return fail("MISSING", "INCOMPLETE_PRESSURE_TEMPERATURE", "历史同帧温度或压力缺失")
+	}
+	point.EstimatePressureMPa = &pressure
+	point.EstimateTemperatureC = &temperature
+	point.PressureTemperatureSource = "MAX_SENSOR_AGGREGATE"
+	// Current capacity, current stream state and daily aggregate parameters do
+	// not establish a versioned total tank volume valid at this historical event.
+	return fail("MISSING", "MISSING_HISTORICAL_CAPACITY_VERSION", "缺少适用于该历史时点的储氢容积版本证据")
+}
+
+func (r *MySQLRepository) hydrateHistoricalHydrogenFrame(ctx context.Context, frame *historicalHydrogenFrame) error {
+	var manifest struct {
+		Chunked     bool   `json:"chunked"`
+		PayloadKind string `json:"payload_kind"`
+		EventID     string `json:"event_id"`
+		ChunkCount  int    `json:"chunk_count"`
+	}
+	if json.Unmarshal([]byte(frame.Parsed), &manifest) != nil || !manifest.Chunked {
+		return nil
+	}
+	if manifest.ChunkCount <= 0 || manifest.ChunkCount > 256 || (manifest.PayloadKind != "parsed_fields" && manifest.PayloadKind != "parsed_json") || (manifest.EventID != "" && manifest.EventID != frame.EventID) {
+		return errors.New("invalid historical hydrogen chunk manifest")
+	}
+	quote := func(s string) string { return "'" + strings.ReplaceAll(s, "'", "''") + "'" }
+	query := `SELECT chunk_index,chunk_count,chunk_text FROM ` + r.tdDatabase + `.raw_frame_payload_chunks WHERE vin=` + quote(frame.VIN) + ` AND protocol=` + quote(frame.Protocol) + ` AND event_id=` + quote(frame.EventID) + ` AND frame_id=` + quote(frame.FrameID) + ` AND payload_kind=` + quote(manifest.PayloadKind) + ` ORDER BY chunk_index LIMIT ` + strconv.Itoa(manifest.ChunkCount+1)
+	rows, err := r.tdengine.QueryContext(ctx, query)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+	parts := make([]string, manifest.ChunkCount)
+	seen := make([]bool, manifest.ChunkCount)
+	count := 0
+	for rows.Next() {
+		var index, total int
+		var part string
+		if err := rows.Scan(&index, &total, &part); err != nil {
+			return err
+		}
+		if index < 0 || index >= len(parts) || seen[index] || total != len(parts) {
+			return errors.New("inconsistent historical hydrogen chunks")
+		}
+		seen[index] = true
+		parts[index] = part
+		count++
+	}
+	if err := rows.Err(); err != nil {
+		return err
+	}
+	if count != len(parts) {
+		return errors.New("incomplete historical hydrogen chunks")
+	}
+	frame.Parsed = strings.Join(parts, "")
+	return nil
+}
+
+// Read a second candidate to detect ambiguous ordering across TDengine child
+// tables. Never select arbitrarily or skip a tied hydrogen frame when advancing
+// past a hydrated non-hydrogen candidate.
+func (r *MySQLRepository) loadHistoricalHydrogenCandidate(ctx context.Context, query string) (historicalHydrogenFrame, error) {
+	rows, err := r.tdengine.QueryContext(ctx, query)
+	if err != nil {
+		return historicalHydrogenFrame{}, err
+	}
+	defer rows.Close()
+	var first historicalHydrogenFrame
+	scan := func(frame *historicalHydrogenFrame) error {
+		return rows.Scan(&frame.VIN, &frame.Protocol, &frame.EventID, &frame.FrameID, &frame.EventMS, &frame.ReceivedMS, &frame.TimestampMS, &frame.Parsed, &frame.ParseStatus)
+	}
+	if !rows.Next() {
+		if err := rows.Err(); err != nil {
+			return first, err
+		}
+		return first, sql.ErrNoRows
+	}
+	if err := scan(&first); err != nil {
+		return first, err
+	}
+	if rows.Next() {
+		var second historicalHydrogenFrame
+		if err := scan(&second); err != nil {
+			return first, err
+		}
+		if first.EventMS == second.EventMS && first.TimestampMS == second.TimestampMS {
+			return first, errors.New("ambiguous historical hydrogen records at identical collection and storage timestamps")
+		}
+	}
+	if err := rows.Err(); err != nil {
+		return first, err
+	}
+	return first, nil
+}

vehicle-data-platform/apps/api/internal/openplatform/historical_hydrogen_repository_test.go

@@ -0,0 +1,146 @@
+package openplatform
+
+import (
+	"context"
+	"database/sql"
+	"github.com/DATA-DOG/go-sqlmock"
+	"strings"
+	"testing"
+	"time"
+)
+
+func historicalTestFrame(parsed string) historicalHydrogenFrame {
+	return historicalHydrogenFrame{VIN: "V1", Protocol: "GB32960", EventID: "E1", FrameID: "F1", Parsed: parsed, ParseStatus: "OK", EventMS: sql.NullInt64{Int64: HistoricalHydrogenStart.Add(time.Hour).UnixMilli(), Valid: true}, ReceivedMS: sql.NullInt64{Int64: HistoricalHydrogenStart.Add(2 * time.Hour).UnixMilli(), Valid: true}}
+}
+func TestHistoricalHydrogenRawPrecisionAndInvalidPriority(t *testing.T) {
+	for _, tc := range []struct {
+		parsed, status, reason string
+		mass                   *float64
+	}{
+		{`{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":0}`, "NORMAL", "", realLiveFloat(0)},
+		{`{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":32.658123456}`, "NORMAL", "", realLiveFloat(32.658123456)},
+		{`{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":-1}`, "INVALID", "INVALID_MASS_READING", nil},
+		{`{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":null,"gd_fc_vehicle_hydrogen_mass_kg":10}`, "INVALID", "INVALID_MASS_READING", nil},
+		{fmtRealtimePT(35, 15), "MISSING", "MISSING_HISTORICAL_CAPACITY_VERSION", nil},
+		{fmtRealtimePT(0, 15), "MISSING", "MISSING_HISTORICAL_CAPACITY_VERSION", nil},
+		{`{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":null}`, "INVALID", "INVALID_PRESSURE_TEMPERATURE", nil},
+		{`{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":20}`, "MISSING", "INCOMPLETE_PRESSURE_TEMPERATURE", nil},
+	} {
+		got := historicalHydrogenFromFrame(historicalTestFrame(tc.parsed))
+		if got.Status != tc.status || got.ReasonCode != tc.reason || (got.RemainingHydrogenKg == nil) != (tc.mass == nil) || tc.mass != nil && *got.RemainingHydrogenKg != *tc.mass {
+			t.Fatalf("%+v", got)
+		}
+	}
+	frame := historicalTestFrame(`{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":1}`)
+	first := historicalHydrogenFromFrame(frame)
+	frame.Parsed = `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":2}`
+	second := historicalHydrogenFromFrame(frame)
+	if first.RecordID != second.RecordID || first.SourceDataVersion == second.SourceDataVersion || first.UpdatedAt != second.UpdatedAt {
+		t.Fatal("revision tracking invalid")
+	}
+	frame.ParseStatus = "ERROR"
+	if got := historicalHydrogenFromFrame(frame); got.Status != "INVALID" {
+		t.Fatal(got)
+	}
+}
+func TestHistoricalHydrogenQueryEventTimeAndSafeBounds(t *testing.T) {
+	q, err := historicalHydrogenQuery("vehicle_ts", "VIN'1", HistoricalHydrogenStart.Add(time.Hour), "GB32960")
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, want := range []string{"vin='VIN''1'", "event_time>=", "event_time<=", "ORDER BY event_time DESC,ts DESC LIMIT 2", `"chunked":true`} {
+		if !strings.Contains(q, want) {
+			t.Fatal(q)
+		}
+	}
+	for _, bad := range []string{"parse_status='OK'", "ts<=", "IS NOT NULL"} {
+		if strings.Contains(q, bad) {
+			t.Fatal(q)
+		}
+	}
+	if _, err := historicalHydrogenQuery("bad;sql", "V1", HistoricalHydrogenStart, "GB32960"); err == nil {
+		t.Fatal("unsafe db")
+	}
+}
+func TestHistoricalHydrogenRepositoryPreservesDelayedUpload(t *testing.T) {
+	td, mock, _ := sqlmock.New()
+	defer td.Close()
+	r := &MySQLRepository{tdengine: td, tdDatabase: "vehicle_ts"}
+	at := HistoricalHydrogenStart.Add(time.Hour)
+	mock.ExpectQuery("SELECT vin,protocol,event_id,frame_id").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "frame_id", "event", "received", "ts", "json", "status"}).AddRow("V1", "GB32960", "E1", "F1", at.UnixMilli(), at.Add(time.Hour).UnixMilli(), at.Add(time.Hour).UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":0}`, "OK"))
+	got, err := r.HistoricalHydrogen(context.Background(), "V1", at, "GB32960")
+	if err != nil || got == nil || got.Status != "NORMAL" || !got.ReceivedAt.After(at) {
+		t.Fatalf("%+v %v", got, err)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+func TestHistoricalHydrogenChunkMissingFailsInsteadOfFallback(t *testing.T) {
+	td, mock, _ := sqlmock.New()
+	defer td.Close()
+	r := &MySQLRepository{tdengine: td, tdDatabase: "vehicle_ts"}
+	frame := historicalTestFrame(`{"chunked":true,"payload_kind":"parsed_fields","event_id":"E1","chunk_count":2}`)
+	mock.ExpectQuery("SELECT chunk_index,chunk_count,chunk_text").WillReturnRows(sqlmock.NewRows([]string{"index", "count", "text"}).AddRow(0, 2, `{"x":`))
+	if err := r.hydrateHistoricalHydrogenFrame(context.Background(), &frame); err == nil {
+		t.Fatal("missing chunk silently accepted")
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+func TestHistoricalHydrogenChunkHydration(t *testing.T) {
+	td, mock, _ := sqlmock.New()
+	defer td.Close()
+	r := &MySQLRepository{tdengine: td, tdDatabase: "vehicle_ts"}
+	frame := historicalTestFrame(`{"chunked":true,"payload_kind":"parsed_fields","event_id":"E1","chunk_count":2}`)
+	mock.ExpectQuery("SELECT chunk_index,chunk_count,chunk_text").WillReturnRows(sqlmock.NewRows([]string{"index", "count", "text"}).AddRow(0, 2, `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":`).AddRow(1, 2, `0}`))
+	if err := r.hydrateHistoricalHydrogenFrame(context.Background(), &frame); err != nil {
+		t.Fatal(err)
+	}
+	got := historicalHydrogenFromFrame(frame)
+	if got.Status != "NORMAL" || *got.RemainingHydrogenKg != 0 {
+		t.Fatal(got)
+	}
+}
+
+func TestHistoricalHydrogenNewestInvalidNeverQueriesOlder(t *testing.T) {
+	td, mock, _ := sqlmock.New()
+	defer td.Close()
+	r := &MySQLRepository{tdengine: td, tdDatabase: "vehicle_ts"}
+	at := HistoricalHydrogenStart.Add(time.Hour)
+	mock.ExpectQuery("SELECT vin,protocol,event_id,frame_id").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "frame_id", "event", "received", "ts", "json", "status"}).AddRow("V1", "GB32960", "E1", "F1", at.UnixMilli(), at.UnixMilli(), at.UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":null}`, "OK"))
+	got, err := r.HistoricalHydrogen(context.Background(), "V1", at, "GB32960")
+	if err != nil || got == nil || got.Status != "INVALID" {
+		t.Fatalf("%+v %v", got, err)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+func TestHistoricalHydrogenRejectsFutureReturnedRow(t *testing.T) {
+	td, mock, _ := sqlmock.New()
+	defer td.Close()
+	r := &MySQLRepository{tdengine: td, tdDatabase: "vehicle_ts"}
+	at := HistoricalHydrogenStart.Add(time.Hour)
+	mock.ExpectQuery("SELECT vin,protocol,event_id,frame_id").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "frame_id", "event", "received", "ts", "json", "status"}).AddRow("V1", "GB32960", "E1", "F1", at.Add(time.Second).UnixMilli(), at.UnixMilli(), at.UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":10}`, "OK"))
+	if _, err := r.HistoricalHydrogen(context.Background(), "V1", at, "GB32960"); err == nil {
+		t.Fatal("future row accepted")
+	}
+}
+
+func TestHistoricalHydrogenTiedCandidatesFailWithoutSkipping(t *testing.T) {
+	for _, parsed := range []string{`{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":10}`, `{"chunked":true,"payload_kind":"parsed_fields","event_id":"E1","chunk_count":1}`} {
+		td, mock, _ := sqlmock.New()
+		r := &MySQLRepository{tdengine: td, tdDatabase: "vehicle_ts"}
+		at := HistoricalHydrogenStart.Add(time.Hour)
+		mock.ExpectQuery("SELECT vin,protocol,event_id,frame_id").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "frame_id", "event", "received", "ts", "json", "status"}).AddRow("V1", "GB32960", "E1", "F1", at.UnixMilli(), at.UnixMilli(), at.UnixMilli(), parsed, "OK").AddRow("V1", "GB32960", "E2", "F2", at.UnixMilli(), at.UnixMilli(), at.UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":20}`, "OK"))
+		if _, err := r.HistoricalHydrogen(context.Background(), "V1", at, "GB32960"); err == nil || !strings.Contains(err.Error(), "ambiguous") {
+			t.Fatalf("expected ambiguity, got %v", err)
+		}
+		if err := mock.ExpectationsWereMet(); err != nil {
+			t.Fatal(err)
+		}
+		td.Close()
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/historical_hydrogen_test.go

@@ -0,0 +1,346 @@
+package openplatform
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"strconv"
+	"strings"
+	"sync/atomic"
+	"testing"
+	"time"
+
+	"github.com/DATA-DOG/go-sqlmock"
+)
+
+const historicalTestVIN = "LA9GG68L2PBAF4773"
+const historicalTestKey = "0123456789abcdef0123456789abcdef"
+
+type historicalTestRepository struct {
+	*fakeRepository
+	lookup  func(context.Context, string, time.Time, string) (*HistoricalHydrogenPoint, error)
+	allowed func(string, time.Time, time.Time) (bool, error)
+	lookups atomic.Int32
+}
+
+func (r *historicalTestRepository) HistoricalHydrogen(ctx context.Context, vin string, at time.Time, protocol string) (*HistoricalHydrogenPoint, error) {
+	r.lookups.Add(1)
+	if r.lookup != nil {
+		return r.lookup(ctx, vin, at, protocol)
+	}
+	return nil, nil
+}
+func (r *historicalTestRepository) HistoricalHydrogenAuthorized(_ context.Context, _ uint64, vin string, at, now time.Time) (bool, error) {
+	if r.allowed != nil {
+		return r.allowed(vin, at, now)
+	}
+	return true, nil
+}
+func historicalTestService() (*Service, *historicalTestRepository, time.Time) {
+	repository := &historicalTestRepository{fakeRepository: &fakeRepository{app: AppCredential{ID: 9}}}
+	service := NewService(repository)
+	now := time.Date(2026, 9, 9, 12, 0, 0, 0, service.location)
+	service.now = func() time.Time { return now }
+	return service, repository, now
+}
+func historicalTestRequest(at time.Time) HistoricalHydrogenRequest {
+	return HistoricalHydrogenRequest{Queries: []HistoricalHydrogenQuery{{RequestID: "start", VIN: historicalTestVIN, Time: at.Format("2006-01-02 15:04:05")}}}
+}
+func historicalTestPoint(at time.Time, kg float64) *HistoricalHydrogenPoint {
+	return &HistoricalHydrogenPoint{VIN: historicalTestVIN, Protocol: "GB32960", ObservedAt: at, RemainingHydrogenKg: &kg, Status: "NORMAL", ValueSource: "REPORTED", RecordID: "record", SourceDataVersion: "data-v1", CalculationVersion: "decode-v1", UpdatedAt: at}
+}
+
+func TestHistoricalHydrogenValidation(t *testing.T) {
+	service, _, now := historicalTestService()
+	for _, tc := range []struct {
+		name   string
+		mutate func(*HistoricalHydrogenRequest)
+	}{
+		{"empty", func(r *HistoricalHydrogenRequest) { r.Queries = nil }},
+		{"too many", func(r *HistoricalHydrogenRequest) { r.Queries = make([]HistoricalHydrogenQuery, 201) }},
+		{"duplicate id", func(r *HistoricalHydrogenRequest) { r.Queries = append(r.Queries, r.Queries[0]) }},
+		{"blank id", func(r *HistoricalHydrogenRequest) { r.Queries[0].RequestID = " " }},
+		{"bad VIN", func(r *HistoricalHydrogenRequest) { r.Queries[0].VIN = "LA9GG68L2PBAI4773" }},
+		{"fractional time", func(r *HistoricalHydrogenRequest) { r.Queries[0].Time = "2026-09-08 12:00:00.1" }},
+		{"future", func(r *HistoricalHydrogenRequest) {
+			r.Queries[0].Time = now.Add(time.Second).Format("2006-01-02 15:04:05")
+		}},
+		{"before coverage", func(r *HistoricalHydrogenRequest) { r.Queries[0].Time = "2026-07-31 23:59:59" }},
+		{"protocol alias", func(r *HistoricalHydrogenRequest) { r.Queries[0].Protocol = "MQTT" }},
+		{"negative tolerance", func(r *HistoricalHydrogenRequest) { v := -1; r.MaxTimeDifferenceSeconds = &v }},
+		{"too large tolerance", func(r *HistoricalHydrogenRequest) { v := 301; r.MaxTimeDifferenceSeconds = &v }},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			request := historicalTestRequest(now.Add(-time.Hour))
+			tc.mutate(&request)
+			if _, _, err := service.validateHistoricalHydrogen(request, now); !errors.Is(err, ErrInvalidRequest) {
+				t.Fatalf("err=%v", err)
+			}
+		})
+	}
+	request := historicalTestRequest(now)
+	request.Queries[0].RequestID = " original id "
+	parsed, tolerance, err := service.validateHistoricalHydrogen(request, now)
+	if err != nil || tolerance != 300 || parsed[0].Protocol != "GB32960" || parsed[0].RequestID != " original id " {
+		t.Fatalf("%+v %d %v", parsed, tolerance, err)
+	}
+}
+
+func TestHistoricalHydrogenNormalZeroPrecisionStaleAndInvalid(t *testing.T) {
+	for _, tc := range []struct {
+		name      string
+		kg        float64
+		age       time.Duration
+		tolerance int
+		status    string
+	}{
+		{"zero", 0, 0, 0, "NORMAL"}, {"precision", 12.3456789, time.Second, 300, "NORMAL"}, {"exact tolerance", 2, 300 * time.Second, 300, "NORMAL"}, {"stale", 2, 300*time.Second + time.Millisecond, 300, "STALE"}, {"not exact", 2, time.Millisecond, 0, "STALE"}, {"invalid negative", -1, 0, 300, "INVALID"},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			service, repository, now := historicalTestService()
+			at := now.Add(-time.Hour)
+			repository.lookup = func(context.Context, string, time.Time, string) (*HistoricalHydrogenPoint, error) {
+				return historicalTestPoint(at.Add(-tc.age), tc.kg), nil
+			}
+			request := historicalTestRequest(at)
+			request.MaxTimeDifferenceSeconds = &tc.tolerance
+			results, err := service.QueryHistoricalHydrogen(context.Background(), historicalTestKey, "trace", request)
+			if err != nil {
+				t.Fatal(err)
+			}
+			got := results[0]
+			if got.RemainingHydrogenKgStatus != tc.status {
+				t.Fatalf("%+v", got)
+			}
+			if tc.status == "NORMAL" {
+				if got.RemainingHydrogenKg == nil || *got.RemainingHydrogenKg != tc.kg {
+					t.Fatal("lost zero or precision")
+				}
+			} else if got.RemainingHydrogenKg != nil {
+				t.Fatal("non-normal quantity exposed")
+			}
+			if got.TimeDifferenceSeconds == nil || *got.TimeDifferenceSeconds != tc.age.Seconds() {
+				t.Fatalf("time delta=%v", got.TimeDifferenceSeconds)
+			}
+		})
+	}
+}
+
+func TestHistoricalHydrogenBatchForbiddenNeverLeaksSample(t *testing.T) {
+	service, repository, now := historicalTestService()
+	at := now.Add(-time.Hour)
+	repository.lookup = func(_ context.Context, _ string, at time.Time, _ string) (*HistoricalHydrogenPoint, error) {
+		return historicalTestPoint(at.Add(-time.Minute), 4), nil
+	}
+	repository.allowed = func(_ string, sample, _ time.Time) (bool, error) { return !sample.Before(at), nil }
+	results, err := service.QueryHistoricalHydrogen(context.Background(), historicalTestKey, "trace", historicalTestRequest(at))
+	if err != nil {
+		t.Fatal(err)
+	}
+	got := results[0]
+	if got.RemainingHydrogenKgStatus != "FORBIDDEN" || got.RemainingHydrogenKg != nil || got.HydrogenRecordTime != nil || got.SourceRecordID != nil || got.HydrogenSourceProtocol != nil || got.SourceDataVersion != nil || got.UpdatedAt != nil {
+		t.Fatalf("sample leaked: %+v", got)
+	}
+	repository.allowed = func(string, time.Time, time.Time) (bool, error) { return false, nil }
+	repository.lookups.Store(0)
+	results, err = service.QueryHistoricalHydrogen(context.Background(), historicalTestKey, "trace", historicalTestRequest(at))
+	if err != nil || repository.lookups.Load() != 0 || results[0].RemainingHydrogenKgStatus != "FORBIDDEN" {
+		t.Fatalf("queried forbidden data: %+v %v", results, err)
+	}
+}
+
+func TestHistoricalHydrogenMixedBatchAndNoProtocolFallback(t *testing.T) {
+	service, repository, now := historicalTestService()
+	at := now.Add(-time.Hour)
+	repository.lookup = func(_ context.Context, _ string, sample time.Time, _ string) (*HistoricalHydrogenPoint, error) {
+		if sample.Equal(at) {
+			return nil, errors.New("private driver query")
+		}
+		return nil, nil
+	}
+	request := historicalTestRequest(at)
+	request.Queries = append(request.Queries, HistoricalHydrogenQuery{RequestID: "none", VIN: historicalTestVIN, Time: at.Add(-time.Minute).Format("2006-01-02 15:04:05")}, HistoricalHydrogenQuery{RequestID: "unsupported", VIN: historicalTestVIN, Time: at.Format("2006-01-02 15:04:05"), Protocol: "JT808"})
+	results, err := service.QueryHistoricalHydrogen(context.Background(), historicalTestKey, "trace", request)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for i, want := range []string{"ERROR", "NO_DATA", "UNSUPPORTED"} {
+		if results[i].RequestID != request.Queries[i].RequestID || results[i].RemainingHydrogenKgStatus != want {
+			t.Fatalf("%+v", results)
+		}
+	}
+	if repository.lookups.Load() != 2 {
+		t.Fatalf("fallback read count=%d", repository.lookups.Load())
+	}
+	encoded, _ := json.Marshal(results)
+	if strings.Contains(string(encoded), "private") {
+		t.Fatal("driver detail leaked")
+	}
+}
+
+func TestHistoricalHydrogenRejectsFutureOrWrongIdentitySample(t *testing.T) {
+	for _, kind := range []string{"future", "vin", "protocol"} {
+		t.Run(kind, func(t *testing.T) {
+			service, repository, now := historicalTestService()
+			at := now.Add(-time.Hour)
+			repository.lookup = func(context.Context, string, time.Time, string) (*HistoricalHydrogenPoint, error) {
+				point := historicalTestPoint(at, 4)
+				switch kind {
+				case "future":
+					point.ObservedAt = at.Add(time.Second)
+				case "vin":
+					point.VIN = "OTHER"
+				case "protocol":
+					point.Protocol = "JT808"
+				}
+				return point, nil
+			}
+			result, err := service.QueryHistoricalHydrogen(context.Background(), historicalTestKey, "trace", historicalTestRequest(at))
+			if err != nil || result[0].RemainingHydrogenKgStatus != "ERROR" || result[0].SourceRecordID != nil {
+				t.Fatalf("%+v %v", result, err)
+			}
+		})
+	}
+}
+
+func TestHistoricalHydrogenDeadlineKeepsEveryRequestID(t *testing.T) {
+	service, repository, now := historicalTestService()
+	repository.lookup = func(ctx context.Context, _ string, _ time.Time, _ string) (*HistoricalHydrogenPoint, error) {
+		<-ctx.Done()
+		return nil, ctx.Err()
+	}
+	request := historicalTestRequest(now.Add(-time.Hour))
+	for i := 1; i < 8; i++ {
+		query := request.Queries[0]
+		query.RequestID = string(rune('a' + i))
+		request.Queries = append(request.Queries, query)
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 20*time.Millisecond)
+	defer cancel()
+	results, err := service.QueryHistoricalHydrogen(ctx, historicalTestKey, "trace", request)
+	if err != nil || len(results) != 8 {
+		t.Fatalf("%+v %v", results, err)
+	}
+	for i, got := range results {
+		if got.RequestID != request.Queries[i].RequestID || got.RemainingHydrogenKgStatus != "ERROR" || got.RemainingHydrogenKg != nil {
+			t.Fatalf("%+v", got)
+		}
+	}
+	if repository.lookups.Load() > 4 {
+		t.Fatal("more than four workers queried")
+	}
+}
+
+func TestHistoricalHydrogenHandlerAuthenticationAndRateLimit(t *testing.T) {
+	service, repository, now := historicalTestService()
+	handler := NewDataHandler(service)
+	request := historicalTestRequest(now.Add(-time.Hour))
+	request.Queries[0].Protocol = "JT808"
+	body, _ := json.Marshal(request)
+	call := func() *httptest.ResponseRecorder {
+		r := httptest.NewRequest(http.MethodPost, HistoricalHydrogenQueryPath, strings.NewReader(string(body)))
+		r.Header.Set("Authorization", "Bearer "+historicalTestKey)
+		w := httptest.NewRecorder()
+		handler.ServeHTTP(w, r)
+		return w
+	}
+	repository.authErr = ErrUnauthorized
+	if w := call(); w.Code != 401 {
+		t.Fatalf("status=%d body=%s", w.Code, w.Body.String())
+	}
+	repository.authErr = nil
+	for i := 0; i < 30; i++ {
+		if w := call(); w.Code != 200 {
+			t.Fatalf("request %d status=%d body=%s", i, w.Code, w.Body.String())
+		}
+	}
+	w := call()
+	if w.Code != 429 || w.Header().Get("Retry-After") != "60" || !strings.Contains(w.Body.String(), "RATE_LIMITED") {
+		t.Fatalf("status=%d headers=%v body=%s", w.Code, w.Header(), w.Body.String())
+	}
+	if !IsPublicPath(HistoricalHydrogenQueryPath) {
+		t.Fatal("missing public route")
+	}
+}
+func TestHistoricalHydrogenConcurrentLimitAndWindowReset(t *testing.T) {
+	var limiter historicalHydrogenLimiter
+	now := time.Now()
+	release1, err := limiter.acquire(1, now)
+	if err != nil {
+		t.Fatal(err)
+	}
+	release2, err := limiter.acquire(1, now)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := limiter.acquire(1, now); err == nil {
+		t.Fatal("third concurrent batch allowed")
+	}
+	release1()
+	release2()
+	for i := 2; i < 30; i++ {
+		release, err := limiter.acquire(1, now)
+		if err != nil {
+			t.Fatal(err)
+		}
+		release()
+	}
+	if _, err := limiter.acquire(1, now); err == nil {
+		t.Fatal("31st batch allowed")
+	}
+	release, err := limiter.acquire(1, now.Add(time.Minute))
+	if err != nil {
+		t.Fatal(err)
+	}
+	release()
+}
+func TestHistoricalHydrogenAuthorizationChecksAppAndGrantAtBothTimes(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	now := time.Now()
+	at := now.Add(-time.Hour)
+	mock.ExpectQuery("SELECT EXISTS.*a.valid_to>\\?.*a.valid_to>\\?.*BINARY g.vin=BINARY \\?.*g.valid_to>\\?").WithArgs(uint64(9), now, now, at, at, historicalTestVIN, at, at).WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(false))
+	allowed, err := NewMySQLRepository(db).HistoricalHydrogenAuthorized(context.Background(), 9, historicalTestVIN, at, now)
+	if err != nil || allowed {
+		t.Fatalf("allowed=%v err=%v", allowed, err)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestHistoricalHydrogenTwoHundredItemsShareEighteenLookups(t *testing.T) {
+	service, repository, now := historicalTestService()
+	repository.lookup = func(_ context.Context, _ string, at time.Time, _ string) (*HistoricalHydrogenPoint, error) {
+		return historicalTestPoint(at, 12.3456789), nil
+	}
+	var request HistoricalHydrogenRequest
+	for i := 0; i < 200; i++ {
+		request.Queries = append(request.Queries, HistoricalHydrogenQuery{RequestID: strconv.Itoa(i), VIN: historicalTestVIN, Time: now.Add(-time.Duration(i%18) * time.Minute).Format("2006-01-02 15:04:05")})
+	}
+	results, err := service.QueryHistoricalHydrogen(context.Background(), historicalTestKey, "trace", request)
+	if err != nil || len(results) != 200 || repository.lookups.Load() != 18 {
+		t.Fatalf("len=%d lookups=%d err=%v", len(results), repository.lookups.Load(), err)
+	}
+	for i, got := range results {
+		if got.RequestID != strconv.Itoa(i) || got.QueryTime != request.Queries[i].Time || got.RemainingHydrogenKgStatus != "NORMAL" || got.RemainingHydrogenKg == nil || *got.RemainingHydrogenKg != 12.3456789 {
+			t.Fatalf("index=%d result=%+v", i, got)
+		}
+	}
+}
+
+func TestHistoricalHydrogenDecoderRejectsNullAndUnknownFields(t *testing.T) {
+	for _, body := range []string{
+		`{"queries":[{"requestId":"a","vin":"LA9GG68L2PBAF4773","time":"2026-08-01 00:00:00"}],"maxTimeDifferenceSeconds":null}`,
+		`{"queries":[{"requestId":"a","vin":"LA9GG68L2PBAF4773","time":"2026-08-01 00:00:00","protocol":null}]}`,
+		`{"queries":[{"requestId":"a","vin":"LA9GG68L2PBAF4773","time":"2026-08-01 00:00:00","unexpected":true}]}`,
+		`{"queries":[],"unexpected":true}`,
+	} {
+		var request HistoricalHydrogenRequest
+		if err := json.Unmarshal([]byte(body), &request); err == nil {
+			t.Fatalf("accepted %s", body)
+		}
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/mileage_reconciliation.go

@@ -0,0 +1,171 @@
+package openplatform
+
+import (
+	"context"
+	"fmt"
+	"math"
+	"sort"
+	"strings"
+	"time"
+)
+
+// ReconciledMileageRange uses terminal odometers, including one preceding
+// observation per protocol. The same function serves single days and every
+// range page: neither the requested start date nor page size changes a result.
+func (r *MySQLRepository) ReconciledMileageRange(ctx context.Context, vins []string, start, end string, protocols []string) (map[string]DailyMileage, error) {
+	if len(vins) == 0 {
+		return map[string]DailyMileage{}, nil
+	}
+	if len(protocols) == 0 {
+		protocols = []string{"GB32960", "YUTONG_MQTT", "JT808"}
+	}
+	placeholders := func(n int) string { return strings.TrimRight(strings.Repeat("?,", n), ",") }
+	// Unknown-protocol legacy imports and GPS distance are not terminal odometers.
+	eligible := func(alias string) string {
+		return fmt.Sprintf(`%[1]s.quality_status IN ('OK','INVALID_DELTA')
+ AND %[1]s.latest_total_mileage_km > 0
+ AND COALESCE(%[1]s.quality_reason,'') <> 'gps_coordinate_accumulation'
+ AND %[1]s.source_ip NOT IN ('legacy-mysql.lingniu-prod','manual-lingniu-prod-day-mileage')
+ AND %[1]s.latest_event_time IS NOT NULL
+ AND %[1]s.latest_event_time < TIMESTAMP(%[1]s.stat_date)+INTERVAL 1 DAY`, alias)
+	}
+	filter := `vin IN (` + placeholders(len(vins)) + `) AND protocol IN (` + placeholders(len(protocols)) + `)`
+	query := `WITH wanted AS (
+ SELECT DISTINCT vin,protocol,stat_date FROM vehicle_daily_mileage_source p
+ WHERE ` + filter + ` AND stat_date BETWEEN ? AND ? AND ` + eligible("p") + `
+ UNION ALL
+ SELECT vin,protocol,MAX(stat_date) AS stat_date FROM vehicle_daily_mileage_source p
+ WHERE ` + filter + ` AND stat_date<? AND ` + eligible("p") + ` GROUP BY vin,protocol
+ )
+ SELECT s.vin,DATE_FORMAT(s.stat_date,'%Y-%m-%d'),s.protocol,s.source_key,
+ s.daily_mileage_km,s.latest_total_mileage_km,
+ DATE_FORMAT(s.latest_event_time,'%Y-%m-%dT%H:%i:%s+08:00'),
+ DATE_FORMAT(s.updated_at,'%Y-%m-%dT%H:%i:%s+08:00'),
+ COALESCE(DATE_FORMAT(s.first_event_time,'%Y-%m-%dT%H:%i:%s+08:00'),''),
+ CASE WHEN s.quality_status='INVALID_DELTA' THEN COALESCE(s.quality_reason,'INVALID_DELTA') ELSE '' END
+ FROM wanted w JOIN vehicle_daily_mileage_source s
+ ON s.vin=w.vin AND s.protocol=w.protocol AND s.stat_date=w.stat_date
+ WHERE ` + eligible("s") + `
+ ORDER BY s.stat_date,s.vin,s.protocol,s.is_selected DESC,
+ CASE WHEN s.quality_status='OK' THEN 0 ELSE 1 END,s.latest_event_time DESC,s.sample_count DESC,s.source_key`
+	args := make([]any, 0, 2*(len(vins)+len(protocols))+3)
+	for _, v := range vins {
+		args = append(args, v)
+	}
+	for _, p := range protocols {
+		args = append(args, p)
+	}
+	args = append(args, start, end)
+	for _, v := range vins {
+		args = append(args, v)
+	}
+	for _, p := range protocols {
+		args = append(args, p)
+	}
+	args = append(args, start)
+	rows, err := r.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var points []DailyMileage
+	seen := map[string]bool{}
+	for rows.Next() {
+		var v DailyMileage
+		if err := rows.Scan(&v.VIN, &v.Date, &v.Protocol, &v.SourceKey, &v.MileageKm, &v.TotalMileageKm, &v.DataTime, &v.UpdatedAt, &v.StatisticsStartTime, &v.DataQuality); err != nil {
+			return nil, err
+		}
+		key := v.VIN + "|" + v.Date + "|" + v.Protocol
+		if !seen[key] {
+			points = append(points, v)
+			seen[key] = true
+		}
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return reconcileMileage(points, vins, start, end, protocols)
+}
+
+func reconcileMileage(points []DailyMileage, vins []string, start, end string, protocols []string) (map[string]DailyMileage, error) {
+	loc := time.FixedZone("Asia/Shanghai", 8*3600)
+	first, err := time.ParseInLocation("2006-01-02", start, loc)
+	if err != nil {
+		return nil, err
+	}
+	last, err := time.ParseInLocation("2006-01-02", end, loc)
+	if err != nil {
+		return nil, err
+	}
+	if last.Before(first) {
+		return nil, fmt.Errorf("invalid mileage interval")
+	}
+	if len(protocols) == 0 {
+		protocols = []string{"GB32960", "YUTONG_MQTT", "JT808"}
+	}
+	sort.SliceStable(points, func(i, j int) bool { return points[i].Date < points[j].Date })
+	state := map[string]map[string]DailyMileage{}
+	pick := func(vin string) (DailyMileage, bool) {
+		for _, p := range protocols {
+			if v, ok := state[vin][p]; ok {
+				return v, true
+			}
+		}
+		return DailyMileage{}, false
+	}
+	put := func(v DailyMileage) {
+		if state[v.VIN] == nil {
+			state[v.VIN] = map[string]DailyMileage{}
+		}
+		state[v.VIN][v.Protocol] = v
+	}
+	i := 0
+	for i < len(points) && points[i].Date < start {
+		put(points[i])
+		i++
+	}
+	out := map[string]DailyMileage{}
+	for day := first; !day.After(last); day = day.AddDate(0, 0, 1) {
+		date := day.Format("2006-01-02")
+		before := map[string]DailyMileage{}
+		for _, vin := range vins {
+			if p, ok := pick(vin); ok {
+				before[vin] = p
+			}
+		}
+		for i < len(points) && points[i].Date == date {
+			put(points[i])
+			i++
+		}
+		for _, vin := range vins {
+			current, ok := pick(vin)
+			if !ok {
+				continue
+			}
+			result := current
+			previous, hasPrevious := before[vin]
+			if current.Date < date {
+				result.MileageKm = 0
+				result.StatisticsStartTime = ""
+				if result.DataQuality == "" {
+					result.DataQuality = "CARRIED_FORWARD"
+				}
+			} else if current.DataQuality != "" {
+				result.MileageKm = 0
+			} else if !hasPrevious {
+				result.DataQuality = "NO_PREVIOUS_BASELINE"
+			} else if current.Protocol != previous.Protocol || current.SourceKey != previous.SourceKey {
+				result.DataQuality = "ODOMETER_SOURCE_CHANGED"
+			} else if current.TotalMileageKm < previous.TotalMileageKm {
+				result.DataQuality = mileageTotalRollbackQuality
+			} else if previous.DataQuality != "" {
+				result.DataQuality = "PREVIOUS_ODOMETER_ANOMALY"
+			} else {
+				result.MileageKm = math.Round((current.TotalMileageKm-previous.TotalMileageKm)*1000) / 1000
+				result.StatisticsStartTime = previous.DataTime
+			}
+			out[dailyMileageKey(vin, date)] = result
+		}
+	}
+	return out, nil
+}

vehicle-data-platform/apps/api/internal/openplatform/mileage_reconciliation_test.go

@@ -0,0 +1,83 @@
+package openplatform
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestReconciliationRecoveryAndPagination(t *testing.T) {
+	points := []DailyMileage{
+		{VIN: "v", Date: "2026-09-13", Protocol: "GB32960", SourceKey: "a", TotalMileageKm: 14366, DataTime: "2026-09-13T07:17:27+08:00"},
+		{VIN: "v", Date: "2026-09-15", Protocol: "GB32960", SourceKey: "a", TotalMileageKm: 14467.4, DataTime: "2026-09-15T20:57:04+08:00"},
+	}
+	all, err := reconcileMileage(points, []string{"v"}, "2026-09-14", "2026-09-15", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if all["v\x002026-09-15"].MileageKm != 101.4 {
+		t.Fatalf("recovery=%+v", all)
+	}
+	for _, date := range []string{"2026-09-14", "2026-09-15"} {
+		one, _ := reconcileMileage(points, []string{"v"}, date, date, nil)
+		if !reflect.DeepEqual(one[dailyMileageKey("v", date)], all[dailyMileageKey("v", date)]) {
+			t.Fatal("page changes result")
+		}
+	}
+}
+func TestReconciliationPinsProtocolThroughMissingDays(t *testing.T) {
+	points := []DailyMileage{{VIN: "v", Date: "2026-09-11", Protocol: "GB32960", SourceKey: "a", TotalMileageKm: 100}, {VIN: "v", Date: "2026-09-12", Protocol: "YUTONG_MQTT", SourceKey: "b", TotalMileageKm: 9000}, {VIN: "v", Date: "2026-09-14", Protocol: "GB32960", SourceKey: "a", TotalMileageKm: 120}}
+	got, _ := reconcileMileage(points, []string{"v"}, "2026-09-12", "2026-09-14", nil)
+	if got[dailyMileageKey("v", "2026-09-12")].TotalMileageKm != 100 || got[dailyMileageKey("v", "2026-09-14")].MileageKm != 20 {
+		t.Fatalf("%+v", got)
+	}
+}
+func TestReconciliationMarksDiscontinuities(t *testing.T) {
+	for _, tc := range []struct {
+		name, source string
+		total        float64
+		want         string
+	}{{"rollback", "a", 90, mileageTotalRollbackQuality}, {"replacement", "b", 120, "ODOMETER_SOURCE_CHANGED"}} {
+		t.Run(tc.name, func(t *testing.T) {
+			got, _ := reconcileMileage([]DailyMileage{{VIN: "v", Date: "2026-09-12", Protocol: "JT808", SourceKey: "a", TotalMileageKm: 100}, {VIN: "v", Date: "2026-09-13", Protocol: "JT808", SourceKey: tc.source, TotalMileageKm: tc.total}}, []string{"v"}, "2026-09-13", "2026-09-13", []string{"JT808"})
+			v := got[dailyMileageKey("v", "2026-09-13")]
+			var response MileageResult
+			fillMileageResult(&response, v, v.MileageKm)
+			if response.DailyMileageKm != nil || response.Status != StatusDataAnomaly || v.DataQuality != tc.want {
+				t.Fatalf("%+v %+v", v, response)
+			}
+		})
+	}
+}
+
+func TestReconciliationFirstObservationHasNoInventedDistance(t *testing.T) {
+	got, _ := reconcileMileage([]DailyMileage{{VIN: "v", Date: "2026-09-12", Protocol: "JT808", SourceKey: "a", TotalMileageKm: 100, DataTime: "2026-09-12T10:00:00+08:00"}}, []string{"v"}, "2026-09-12", "2026-09-12", nil)
+	v := got[dailyMileageKey("v", "2026-09-12")]
+	var result MileageResult
+	fillMileageResult(&result, v, v.MileageKm)
+	if result.DailyMileageKm != nil || result.TotalMileageKm == nil || *result.DataQuality != "NO_PREVIOUS_BASELINE" {
+		t.Fatalf("%+v", result)
+	}
+}
+
+// A source replacement is flagged only on its boundary; starting a new page
+// must not hide that boundary or change the following day's odometer delta.
+func TestReconciliationSourceReplacementAcrossPageBoundary(t *testing.T) {
+	points := []DailyMileage{
+		{VIN: "v", Date: "2026-09-11", Protocol: "JT808", SourceKey: "old", TotalMileageKm: 9000},
+		{VIN: "v", Date: "2026-09-12", Protocol: "JT808", SourceKey: "new", TotalMileageKm: 100},
+		{VIN: "v", Date: "2026-09-14", Protocol: "JT808", SourceKey: "new", TotalMileageKm: 140},
+	}
+	all, _ := reconcileMileage(points, []string{"v"}, "2026-09-12", "2026-09-14", nil)
+	if all[dailyMileageKey("v", "2026-09-12")].DataQuality != "ODOMETER_SOURCE_CHANGED" {
+		t.Fatal(all)
+	}
+	if all[dailyMileageKey("v", "2026-09-14")].MileageKm != 40 {
+		t.Fatal(all)
+	}
+	for _, day := range []string{"2026-09-12", "2026-09-13", "2026-09-14"} {
+		one, _ := reconcileMileage(points, []string{"v"}, day, day, nil)
+		if !reflect.DeepEqual(one[dailyMileageKey("v", day)], all[dailyMileageKey("v", day)]) {
+			t.Fatal(day)
+		}
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/model.go

@@ -46,6 +46,10 @@ func (p *ProtocolPriority) UnmarshalJSON(data []byte) error {
 }
 
 type HydrogenResult struct {
+	VIN                   string   `json:"vin"`
+	StatisticsStartTime   *string  `json:"statisticsStartTime"`
+	StatisticsEndTime     *string  `json:"statisticsEndTime"`
+	UpdatedAt             *string  `json:"updatedAt"`
 	PlateNumber           string   `json:"plateNumber"`
 	Date                  string   `json:"date"`
 	HydrogenConsumptionKg *float64 `json:"hydrogenConsumptionKg"`
@@ -57,16 +61,18 @@ type HydrogenResult struct {
 }
 
 type MileageResult struct {
-	VIN            string   `json:"vin"`
+	StatisticsStartTime *string  `json:"statisticsStartTime"`
-	PlateNumber    string   `json:"plateNumber"`
+	StatisticsEndTime   *string  `json:"statisticsEndTime"`
-	Date           string   `json:"date"`
+	VIN                 string   `json:"vin"`
-	DailyMileageKm *float64 `json:"dailyMileageKm"`
+	PlateNumber         string   `json:"plateNumber"`
-	TotalMileageKm *float64 `json:"totalMileageKm"`
+	Date                string   `json:"date"`
-	DataTime       *string  `json:"dataTime"`
+	DailyMileageKm      *float64 `json:"dailyMileageKm"`
-	UpdatedAt      *string  `json:"updatedAt"`
+	TotalMileageKm      *float64 `json:"totalMileageKm"`
-	SourceProtocol *string  `json:"sourceProtocol"`
+	DataTime            *string  `json:"dataTime"`
-	DataQuality    *string  `json:"dataQuality,omitempty"`
+	UpdatedAt           *string  `json:"updatedAt"`
-	Status         string   `json:"status"`
+	SourceProtocol      *string  `json:"sourceProtocol"`
+	DataQuality         *string  `json:"dataQuality,omitempty"`
+	Status              string   `json:"status"`
 }
 
 type MileageRangeResult struct {
@@ -151,21 +157,31 @@ type RealtimeVehicleRequest struct {
 }
 
 type RealtimeVehiclePoint struct {
-	VIN            string
+	LiveHydrogen       RealtimeHydrogenData
-	Protocol       string
+	LocationObservedAt time.Time
-	Longitude      float64
+	LocationEventID    string
-	Latitude       float64
+	LocationReceivedAt time.Time
-	SpeedKmh       float64
+	GPSFixStatus       string
-	SOCPercent     *float64
+	CoordinateSystem   string
-	TotalMileageKm float64
+	VIN                string
-	ObservedAt     time.Time
+	Protocol           string
-	Online         bool
+	Longitude          float64
-	ActiveToday    bool
+	Latitude           float64
+	SpeedKmh           float64
+	SOCPercent         *float64
+	TotalMileageKm     float64
+	ObservedAt         time.Time
+	Online             bool
+	ActiveToday        bool
 }
 
 type RealtimeVehicleResult struct {
-	VIN         string `json:"vin"`
+	RealtimeHydrogenData
-	PlateNumber string `json:"plateNumber"`
+	GPSFixStatus       string  `json:"gpsFixStatus"`
+	LocationRecordTime *string `json:"locationRecordTime"`
+	CoordinateSystem   string  `json:"coordinateSystem"`
+	VIN                string  `json:"vin"`
+	PlateNumber        string  `json:"plateNumber"`
 	// Protocol is the single, canonical source protocol for this realtime record.
 	// It is normalized to GB32960, MQTT, or JT808.
 	Protocol              string   `json:"protocol,omitempty"`
@@ -285,6 +301,8 @@ type AppCredential struct {
 }
 
 type DailyHydrogen struct {
+	EvidenceJSON     string
+	UpdatedAt        string
 	VIN              string
 	Date             string
 	ConsumptionKg    float64
@@ -296,13 +314,16 @@ type DailyHydrogen struct {
 }
 
 type DailyMileage struct {
-	VIN            string
+	SourceKey           string
-	Date           string
+	DataQuality         string
-	Protocol       string
+	StatisticsStartTime string
-	MileageKm      float64
+	VIN                 string
-	TotalMileageKm float64
+	Date                string
-	DataTime       string
+	Protocol            string
-	UpdatedAt      string
+	MileageKm           float64
+	TotalMileageKm      float64
+	DataTime            string
+	UpdatedAt           string
 }
 
 type MileageSnapshot struct {

vehicle-data-platform/apps/api/internal/openplatform/mysql.go

@@ -196,7 +196,8 @@ func (r *MySQLRepository) RealtimeVehicles(ctx context.Context, vins []string, n
 	query := `
 SELECT l.vin,l.protocol,COALESCE(l.longitude,0),COALESCE(l.latitude,0),
 	       COALESCE(l.speed_kmh,0),l.soc_percent,COALESCE(l.total_mileage_km,0),l.updated_at,
-	       MAX(CASE WHEN l.updated_at>=? THEN 1 ELSE 0 END) OVER (PARTITION BY l.vin) AS active_today
+	       MAX(CASE WHEN l.updated_at>=? THEN 1 ELSE 0 END) OVER (PARTITION BY l.vin) AS active_today,
+           l.event_time,l.received_at,l.event_id
 FROM vehicle_realtime_location l
 WHERE BINARY l.vin IN (` + placeholders + `)
 ORDER BY l.vin,
@@ -212,9 +213,12 @@ ORDER BY l.vin,
 	for rows.Next() {
 		var point RealtimeVehiclePoint
 		var soc sql.NullFloat64
-		if err := rows.Scan(&point.VIN, &point.Protocol, &point.Longitude, &point.Latitude, &point.SpeedKmh, &soc, &point.TotalMileageKm, &point.ObservedAt, &point.ActiveToday); err != nil {
+		var locationAt, receivedAt sql.NullTime
+		var eventID sql.NullString
+		if err := rows.Scan(&point.VIN, &point.Protocol, &point.Longitude, &point.Latitude, &point.SpeedKmh, &soc, &point.TotalMileageKm, &point.ObservedAt, &point.ActiveToday, &locationAt, &receivedAt, &eventID); err != nil {
 			return nil, err
 		}
+		point.LocationObservedAt, point.LocationReceivedAt, point.LocationEventID = locationAt.Time, receivedAt.Time, eventID.String
 		if soc.Valid && soc.Float64 >= 0 && soc.Float64 <= 100 {
 			value := round3(soc.Float64)
 			point.SOCPercent = &value
@@ -229,7 +233,16 @@ ORDER BY l.vin,
 			out[point.VIN] = selected
 		}
 	}
-	return out, rows.Err()
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := r.enrichRealtimeLiveData(ctx, vins, out, now); err != nil {
+		return nil, err
+	}
+	return out, nil
 }
 
 func (r *MySQLRepository) HydrogenStations(ctx context.Context, request HydrogenStationRequest) ([]HydrogenStation, error) {
@@ -313,7 +326,8 @@ func (r *MySQLRepository) DailyHydrogen(ctx context.Context, vins []string, date
 	}
 	query, args := inQuery(`
 SELECT vin,DATE_FORMAT(stat_date,'%Y-%m-%d'),consumption_kg,sample_count,quality_status,quality_reason,
-       calculation_phase,algorithm_version
+       calculation_phase,algorithm_version,COALESCE(evidence_json,'null'),
+       DATE_FORMAT(updated_at,'%Y-%m-%dT%H:%i:%s.%f+08:00')
 FROM vehicle_open_daily_energy
 WHERE energy_type='HYDROGEN' AND stat_date=? AND vin IN (%s)`, date, vins)
 	rows, err := r.db.QueryContext(ctx, query, args...)
@@ -324,7 +338,7 @@ WHERE energy_type='HYDROGEN' AND stat_date=? AND vin IN (%s)`, date, vins)
 	out := make(map[string]DailyHydrogen, len(vins))
 	for rows.Next() {
 		var value DailyHydrogen
-		if err := rows.Scan(&value.VIN, &value.Date, &value.ConsumptionKg, &value.SampleCount, &value.QualityStatus, &value.QualityReason, &value.CalculationPhase, &value.AlgorithmVersion); err != nil {
+		if err := rows.Scan(&value.VIN, &value.Date, &value.ConsumptionKg, &value.SampleCount, &value.QualityStatus, &value.QualityReason, &value.CalculationPhase, &value.AlgorithmVersion, &value.EvidenceJSON, &value.UpdatedAt); err != nil {
 			return nil, err
 		}
 		out[value.VIN] = value
@@ -407,7 +421,12 @@ SELECT
       AND selected.is_selected=1
       AND selected.latest_event_time IS NOT NULL
   ),'%Y-%m-%dT%H:%i:%s+08:00'),''),
-  DATE_FORMAT(m.updated_at,'%Y-%m-%dT%H:%i:%s+08:00')
+  DATE_FORMAT(m.updated_at,'%Y-%m-%dT%H:%i:%s+08:00'),
+  COALESCE(DATE_FORMAT((SELECT MIN(selected.first_event_time)
+    FROM vehicle_daily_mileage_source selected
+    WHERE selected.vin=m.vin AND selected.stat_date=m.stat_date
+      AND selected.protocol=m.protocol AND selected.is_selected=1
+  ),'%Y-%m-%dT%H:%i:%s+08:00'),'')
 FROM vehicle_daily_mileage m
 WHERE m.stat_date BETWEEN ? AND ?
   AND m.vin IN (` + placeholders + `)
@@ -445,7 +464,7 @@ ORDER BY m.stat_date,m.vin,
 	out := make(map[string]DailyMileage, len(vins))
 	for rows.Next() {
 		var value DailyMileage
-		if err := rows.Scan(&value.VIN, &value.Date, &value.Protocol, &value.MileageKm, &value.TotalMileageKm, &value.DataTime, &value.UpdatedAt); err != nil {
+		if err := rows.Scan(&value.VIN, &value.Date, &value.Protocol, &value.MileageKm, &value.TotalMileageKm, &value.DataTime, &value.UpdatedAt, &value.StatisticsStartTime); err != nil {
 			return nil, err
 		}
 		key := dailyMileageKey(value.VIN, value.Date)
@@ -805,7 +824,8 @@ func inQuery(template, first string, values []string) (string, []any) {
 	for _, value := range values {
 		args = append(args, value)
 	}
-	return strings.Replace(template, "%s", placeholders, 1), args
+	// Match the IN marker, not MySQL DATE_FORMAT seconds (%s).
+	return strings.Replace(template, "IN (%s)", "IN ("+placeholders+")", 1), args
 }
 
 func nullableTime(value *time.Time) any {

vehicle-data-platform/apps/api/internal/openplatform/mysql_test.go

@@ -11,10 +11,13 @@ import (
 )
 
 func TestInQueryPreservesMySQLDateFormatPercentTokens(t *testing.T) {
-	query, args := inQuery("SELECT DATE_FORMAT(stat_date,'%Y-%m-%d') FROM metrics WHERE stat_date=? AND vin IN (%s)", "2026-07-21", []string{"VIN1", "VIN2"})
+	query, args := inQuery("SELECT DATE_FORMAT(stat_date,'%Y-%m-%d'),DATE_FORMAT(updated_at,'%Y-%m-%dT%H:%i:%s.%f+08:00') FROM metrics WHERE stat_date=? AND vin IN (%s)", "2026-07-21", []string{"VIN1", "VIN2"})
 	if strings.Contains(query, "MISSING") || !strings.Contains(query, "DATE_FORMAT(stat_date,'%Y-%m-%d')") {
 		t.Fatalf("date format was corrupted: %s", query)
 	}
+	if !strings.Contains(query, "%H:%i:%s.%f+08:00") || strings.Contains(query, "IN (%s)") {
+		t.Fatalf("timestamp seconds consumed as VIN placeholder: %s", query)
+	}
 	if !strings.Contains(query, "vin IN (?,?)") {
 		t.Fatalf("VIN placeholders missing: %s", query)
 	}
@@ -132,8 +135,8 @@ func TestDailyMileageReturnsDailyAndAuthoritativeSameProtocolEndTotal(t *testing
 	defer db.Close()
 	mock.ExpectQuery("COALESCE\\(m.day_end_total_mileage_km,m.latest_total_mileage_km\\).*FROM vehicle_daily_mileage m\\s+WHERE m.stat_date BETWEEN \\? AND \\?.*COALESCE\\(m.day_end_total_mileage_km,m.latest_total_mileage_km\\)>=0.*m.daily_mileage_km>=0").
 		WithArgs("2026-07-21", "2026-07-21", "LTEST32960VIN0001", "LTEST32960VIN0002").
-		WillReturnRows(sqlmock.NewRows([]string{"vin", "date", "protocol", "daily_mileage_km", "latest_total_mileage_km", "data_time", "updated_at"}).
+		WillReturnRows(sqlmock.NewRows([]string{"vin", "date", "protocol", "daily_mileage_km", "latest_total_mileage_km", "data_time", "updated_at", "statistics_start_time"}).
-			AddRow("LTEST32960VIN0001", "2026-07-21", "GB32960", 101.235, 12345.679, "2026-07-21T23:58:45+08:00", "2026-07-22T05:10:00+08:00"))
+			AddRow("LTEST32960VIN0001", "2026-07-21", "GB32960", 101.235, 12345.679, "2026-07-21T23:58:45+08:00", "2026-07-22T05:10:00+08:00", "2026-07-21T00:01:00+08:00"))
 
 	values, err := NewMySQLRepository(db).DailyMileage(context.Background(), []string{"LTEST32960VIN0001", "LTEST32960VIN0002"}, "2026-07-21", nil)
 	if err != nil {
@@ -159,9 +162,9 @@ func TestDailyMileageExplicitPriorityFiltersDisabledProtocolsAndKeepsZero(t *tes
 	defer db.Close()
 	mock.ExpectQuery("m.protocol IN \\(\\?,\\?\\).*ORDER BY m.stat_date,m.vin,CASE m.protocol WHEN \\? THEN 1 WHEN \\? THEN 2").
 		WithArgs("2026-07-21", "2026-07-21", "LTEST32960VIN0001", "JT808", "GB32960", "JT808", "GB32960").
-		WillReturnRows(sqlmock.NewRows([]string{"vin", "date", "protocol", "daily_mileage_km", "latest_total_mileage_km", "data_time", "updated_at"}).
+		WillReturnRows(sqlmock.NewRows([]string{"vin", "date", "protocol", "daily_mileage_km", "latest_total_mileage_km", "data_time", "updated_at", "statistics_start_time"}).
-			AddRow("LTEST32960VIN0001", "2026-07-21", "JT808", 0.0, 12000.0, "2026-07-21T23:58:45+08:00", "2026-07-22T05:10:00+08:00").
+			AddRow("LTEST32960VIN0001", "2026-07-21", "JT808", 0.0, 12000.0, "2026-07-21T23:58:45+08:00", "2026-07-22T05:10:00+08:00", "2026-07-21T00:01:00+08:00").
-			AddRow("LTEST32960VIN0001", "2026-07-21", "GB32960", 12.0, 12012.0, "2026-07-21T23:59:00+08:00", "2026-07-22T05:10:00+08:00"))
+			AddRow("LTEST32960VIN0001", "2026-07-21", "GB32960", 12.0, 12012.0, "2026-07-21T23:59:00+08:00", "2026-07-22T05:10:00+08:00", "2026-07-21T00:01:00+08:00"))
 
 	values, err := NewMySQLRepository(db).DailyMileage(context.Background(), []string{"LTEST32960VIN0001"}, "2026-07-21", []string{"JT808", "GB32960"})
 	if err != nil {
@@ -269,9 +272,9 @@ func TestRealtimeVehiclesAnyFreshProtocolKeepsSelectedSourceOnline(t *testing.T)
 	vin := "LTEST32960VIN0001"
 	mock.ExpectQuery("SELECT l.vin,l.protocol.*FROM vehicle_realtime_location").
 		WithArgs(dayStart, vin, now.Add(-10*time.Minute)).
-		WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "longitude", "latitude", "speed_kmh", "soc_percent", "total_mileage_km", "updated_at", "active_today"}).
+		WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "longitude", "latitude", "speed_kmh", "soc_percent", "total_mileage_km", "updated_at", "active_today", "event_time", "received_at", "event_id"}).
-			AddRow(vin, "GB32960", 120.1, 30.2, 0, 86.5, 1000, now.Add(-2*time.Minute), true).
+			AddRow(vin, "GB32960", 120.1, 30.2, 0, 86.5, 1000, now.Add(-2*time.Minute), true, now.Add(-2*time.Minute), now.Add(-2*time.Minute), "gb-frame").
-			AddRow(vin, "JT808", 120.2, 30.3, 10, nil, 0, now.Add(-20*time.Second), true))
+			AddRow(vin, "JT808", 120.2, 30.3, 10, nil, 0, now.Add(-20*time.Second), true, now.Add(-20*time.Second), now.Add(-20*time.Second), "jt-frame"))
 
 	points, err := NewMySQLRepository(db).RealtimeVehicles(context.Background(), []string{vin}, now)
 	if err != nil {

vehicle-data-platform/apps/api/internal/openplatform/realtime_hydrogen_estimate.go

@@ -0,0 +1,154 @@
+package openplatform
+
+import (
+	"context"
+	"encoding/json"
+	"math"
+	"strings"
+	"time"
+)
+
+const realtimeHydrogenPressureField = "gb32960.fuel_cell.max_hydrogen_pressure_mpa"
+const realtimeHydrogenTemperatureField = "gb32960.fuel_cell.max_hydrogen_temperature_c"
+
+// Capacity is the configured total water volume for this VIN, never a default
+// inferred from a vehicle model or a partial cylinder reading.
+func (r *MySQLRepository) loadRealtimeHydrogenCapacities(ctx context.Context, vins []string) (map[string]float64, error) {
+	result := make(map[string]float64)
+	if len(vins) == 0 {
+		return result, nil
+	}
+	args := make([]any, len(vins))
+	for i, vin := range vins {
+		args[i] = vin
+	}
+	rows, err := r.db.QueryContext(ctx, `SELECT vin,tank_capacity_l FROM vehicle_hydrogen_tank_capacity WHERE active=1 AND BINARY vin IN (`+strings.TrimRight(strings.Repeat("?,", len(vins)), ",")+`)`, args...)
+	if err != nil {
+		return result, err
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var vin string
+		var capacity float64
+		if err := rows.Scan(&vin, &capacity); err != nil {
+			return result, err
+		}
+		if capacity > 0 && capacity <= 10000 && !math.IsNaN(capacity) && !math.IsInf(capacity, 0) {
+			result[vin] = capacity
+		}
+	}
+	return result, rows.Err()
+}
+
+func realtimeHydrogenWithCapacity(parsed string, observedAt, now time.Time, capacity float64) RealtimeHydrogenData {
+	result := realtimeHydrogenFromFrame(parsed, observedAt, now)
+	reason := func(value string) { result.HydrogenPercentReason = &value }
+	if result.RemainingHydrogenKgStatus == "INVALID" {
+		result.RemainingHydrogenPercentStatus = "INVALID"
+		reason("INVALID_MASS_READING")
+		return result
+	}
+	full, capacityOK := PressureHydrogenMassKg(35, 15, capacity)
+	capacityOK = capacityOK && full > 0
+	if capacityOK {
+		pressure, temperature := 35.0, 15.0
+		version, source := "REAL_GAS_35MPA_15C_V1", "vehicle_hydrogen_tank_capacity"
+		result.HydrogenFullCapacityKg = &full
+		result.HydrogenTankCapacityL = &capacity
+		result.HydrogenFullPressureMPa = &pressure
+		result.HydrogenReferenceTemperatureC = &temperature
+		result.HydrogenCalculationVersion = &version
+		result.HydrogenCapacitySource = &source
+	}
+	var fields map[string]any
+	if json.Unmarshal([]byte(parsed), &fields) != nil {
+		return result
+	}
+	var mass float64
+	if result.RemainingHydrogenKg != nil {
+		// Use the same source measurement for numerator and kg, before rounding.
+		for _, key := range hydrogenMassFields {
+			if value, exists := fields[key]; exists {
+				mass, _ = numericValue(value)
+				break
+			}
+		}
+	} else {
+		pv, pExists := fields[realtimeHydrogenPressureField]
+		tv, tExists := fields[realtimeHydrogenTemperatureField]
+		if !pExists && !tExists {
+			result.RemainingHydrogenPercentStatus = "MISSING"
+			reason("MISSING_HYDROGEN_MEASUREMENT")
+			return result
+		}
+		if !observedAt.IsZero() {
+			at := observedAt.In(time.FixedZone("Asia/Shanghai", 8*60*60)).Format(time.RFC3339Nano)
+			result.HydrogenRecordTime = &at
+		}
+		pressure, pOK := numericValue(pv)
+		temperature, tOK := numericValue(tv)
+		// Explicit invalid telemetry blocks fallback. Missing peer fields are also
+		// withheld: readings from different raw frames must never be combined.
+		if (pExists && (!pOK || !finiteRealtime(pressure) || pressure < 0 || pressure > 70)) || (tExists && (!tOK || !finiteRealtime(temperature) || temperature < -40 || temperature > 726.85)) || observedAt.IsZero() || observedAt.After(now.Add(time.Minute)) {
+			result.HydrogenDataStatus = "INVALID"
+			result.RemainingHydrogenKgStatus = "INVALID"
+			result.RemainingHydrogenPercentStatus = "INVALID"
+			reason("INVALID_PRESSURE_TEMPERATURE")
+			return result
+		}
+		if !pExists || !tExists {
+			result.RemainingHydrogenPercentStatus = "MISSING"
+			reason("INCOMPLETE_PRESSURE_TEMPERATURE")
+			return result
+		}
+		if !capacityOK {
+			result.RemainingHydrogenPercentStatus = "MISSING"
+			reason("MISSING_TANK_CAPACITY")
+			return result
+		}
+		var ok bool
+		mass, ok = PressureHydrogenMassKg(pressure, temperature, capacity)
+		if !ok {
+			result.HydrogenDataStatus = "INVALID"
+			result.RemainingHydrogenKgStatus = "INVALID"
+			result.RemainingHydrogenPercentStatus = "INVALID"
+			reason("MASS_CALCULATION_FAILED")
+			return result
+		}
+		rounded := round3(mass)
+		source := "ESTIMATED"
+		result.RemainingHydrogenKg = &rounded
+		result.HydrogenValueSource = &source
+		sensorSource := "MAX_SENSOR_AGGREGATE"
+		result.HydrogenPressureTemperatureSource = &sensorSource
+		result.HydrogenEstimatePressureMPa = &pressure
+		result.HydrogenEstimateTemperatureC = &temperature
+		result.RemainingHydrogenKgStatus = "NORMAL"
+		if now.Sub(observedAt) > time.Duration(realtimeHydrogenStaleSeconds)*time.Second {
+			result.RemainingHydrogenKgStatus = "STALE"
+		}
+	}
+	if !capacityOK {
+		result.RemainingHydrogenPercentStatus = "MISSING"
+		reason("MISSING_TANK_CAPACITY")
+		return result
+	}
+	percent := mass / full * 100
+	source := "ESTIMATED"
+	result.RemainingHydrogenPercentSource = &source
+	if percent > 100 {
+		result.RemainingHydrogenPercentStatus = "INVALID"
+		result.HydrogenDataStatus = "PARTIAL"
+		if result.RemainingHydrogenKgStatus == "STALE" {
+			result.HydrogenDataStatus = "STALE"
+		}
+		reason("EXCEEDS_NOMINAL_FULL_CAPACITY")
+		return result
+	}
+	percent = round3(percent)
+	result.RemainingHydrogenPercent = &percent
+	result.RemainingHydrogenPercentStatus = result.RemainingHydrogenKgStatus
+	result.HydrogenDataStatus = result.RemainingHydrogenKgStatus
+	return result
+}
+func finiteRealtime(value float64) bool { return !math.IsNaN(value) && !math.IsInf(value, 0) }

vehicle-data-platform/apps/api/internal/openplatform/realtime_hydrogen_estimate_test.go

@@ -0,0 +1,148 @@
+package openplatform
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"github.com/DATA-DOG/go-sqlmock"
+	"math"
+	"testing"
+	"time"
+)
+
+func TestRealtimeHydrogenEstimation(t *testing.T) {
+	now := time.Now()
+	pt := func(p, t float64) string { return fmtRealtimePT(p, t) }
+	for _, tc := range []struct {
+		name, parsed                  string
+		cap                           float64
+		status, source, percentStatus string
+		zero                          bool
+	}{
+		{"full", pt(35, 15), 520, "NORMAL", "ESTIMATED", "NORMAL", false},
+		{"empty", pt(0, 15), 520, "NORMAL", "ESTIMATED", "NORMAL", true},
+		{"no capacity", pt(20, 15), 0, "MISSING", "", "MISSING", false},
+		{"no temperature", `{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":20}`, 520, "MISSING", "", "MISSING", false},
+		{"invalid pressure", pt(-1, 15), 520, "INVALID", "", "INVALID", false},
+		{"invalid temperature", pt(20, 6553), 520, "INVALID", "", "INVALID", false},
+		{"over nominal", pt(40, 15), 520, "PARTIAL", "ESTIMATED", "INVALID", false},
+		{"reported wins", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":0,"gb32960.fuel_cell.max_hydrogen_pressure_mpa":20,"gb32960.fuel_cell.max_hydrogen_temperature_c":15}`, 520, "NORMAL", "REPORTED", "NORMAL", true},
+		{"invalid reported blocks", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":null,"gb32960.fuel_cell.max_hydrogen_pressure_mpa":20,"gb32960.fuel_cell.max_hydrogen_temperature_c":15}`, 520, "INVALID", "", "INVALID", false},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			got := realtimeHydrogenWithCapacity(tc.parsed, now, now, tc.cap)
+			if got.HydrogenDataStatus != tc.status || got.RemainingHydrogenPercentStatus != tc.percentStatus {
+				t.Fatalf("%+v", got)
+			}
+			if tc.source != "" && (got.HydrogenValueSource == nil || *got.HydrogenValueSource != tc.source) {
+				t.Fatalf("source %+v", got)
+			}
+			if tc.zero && (got.RemainingHydrogenKg == nil || *got.RemainingHydrogenKg != 0 || got.RemainingHydrogenPercent == nil || *got.RemainingHydrogenPercent != 0) {
+				t.Fatalf("zero %+v", got)
+			}
+			if tc.name == "full" && (got.RemainingHydrogenPercent == nil || *got.RemainingHydrogenPercent != 100) {
+				t.Fatalf("full %+v", got)
+			}
+		})
+	}
+	got := realtimeHydrogenWithCapacity(pt(20, 30), now.Add(-301*time.Second), now, 520)
+	if got.HydrogenDataStatus != "STALE" || got.RemainingHydrogenPercentStatus != "STALE" {
+		t.Fatal(got)
+	}
+	mass, _ := PressureHydrogenMassKg(20, 30, 520)
+	full, _ := PressureHydrogenMassKg(35, 15, 520)
+	if math.Abs(*got.RemainingHydrogenPercent-round3(mass/full*100)) > 1e-6 {
+		t.Fatal(got)
+	}
+}
+func fmtRealtimePT(p, t float64) string {
+	return fmt.Sprintf(`{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":%g,"gb32960.fuel_cell.max_hydrogen_temperature_c":%g}`, p, t)
+}
+func TestRealtimeCapacityLookupScopedAndOptional(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	mock.ExpectQuery(`SELECT vin,tank_capacity_l FROM vehicle_hydrogen_tank_capacity WHERE active=1 AND BINARY vin IN`).WithArgs("V1", "V2").WillReturnRows(sqlmock.NewRows([]string{"vin", "tank_capacity_l"}).AddRow("V1", 520).AddRow("V2", 0))
+	got, err := (&MySQLRepository{db: db}).loadRealtimeHydrogenCapacities(context.Background(), []string{"V1", "V2"})
+	if err != nil || got["V1"] != 520 || got["V2"] != 0 {
+		t.Fatalf("%v %v", got, err)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+func TestRealtimePressureFallbackUsesSampleCapacity(t *testing.T) {
+	now := time.Now()
+	points := map[string]RealtimeVehiclePoint{"V1": {LiveHydrogen: missingRealtimeHydrogen("GB32960")}}
+	frames := []realtimeRawFrame{{VIN: "V1", Protocol: "GB32960", EventMS: sql.NullInt64{Int64: now.Add(-time.Minute).UnixMilli(), Valid: true}, Parsed: sql.NullString{String: fmtRealtimePT(35, 15), Valid: true}}}
+	applyRealtimeHydrogenFallback(points, []realtimeFrameReference{{VIN: "V1"}}, frames, now, map[string]float64{"V1": 520})
+	if got := points["V1"].LiveHydrogen; got.RemainingHydrogenPercent == nil || *got.RemainingHydrogenPercent != 100 || *got.HydrogenValueSource != "ESTIMATED" {
+		t.Fatal(got)
+	}
+}
+
+func TestRealtimeCapacityFailurePreservesReportedMeasurement(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	td, tm, _ := sqlmock.New()
+	defer td.Close()
+	now := time.Now()
+	vin := "V1"
+	mock.ExpectQuery("SELECT vin,protocol,event_id,received_at").WithArgs(vin).WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "received_at"}).AddRow(vin, "GB32960", "sample", now))
+	tm.ExpectQuery("SELECT vin,protocol,event_id").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "event_time", "parsed_json"}).AddRow(vin, "GB32960", "sample", now.UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":8.125}`))
+	mock.ExpectQuery("SELECT vin,tank_capacity_l").WithArgs(vin).WillReturnError(fmt.Errorf("capacity store unavailable"))
+	points := map[string]RealtimeVehiclePoint{vin: {Protocol: "GB32960"}}
+	if err := NewMySQLRepository(db).WithTDengine(td, "vehicle_ts").enrichRealtimeLiveData(context.Background(), []string{vin}, points, now); err != nil {
+		t.Fatal(err)
+	}
+	got := points[vin].LiveHydrogen
+	if got.RemainingHydrogenKg == nil || *got.RemainingHydrogenKg != 8.125 || got.RemainingHydrogenKgStatus != "NORMAL" || got.RemainingHydrogenPercent != nil || got.RemainingHydrogenPercentStatus != "MISSING" {
+		t.Fatalf("%+v", got)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+	if err := tm.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestRealtimeHydrogenNoFabricatedInputsAndUnroundedDenominator(t *testing.T) {
+	now := time.Now()
+	for _, parsed := range []string{`{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":null,"gb32960.fuel_cell.max_hydrogen_temperature_c":15}`, `{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":"NaN","gb32960.fuel_cell.max_hydrogen_temperature_c":15}`, `{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":0,"gb32960.fuel_cell.max_hydrogen_temperature_c":null}`} {
+		got := realtimeHydrogenWithCapacity(parsed, now, now, 520)
+		if got.RemainingHydrogenKg != nil || got.HydrogenDataStatus != "INVALID" {
+			t.Fatal(got)
+		}
+	}
+	got := realtimeHydrogenWithCapacity(`{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":5.12345}`, now, now, 520)
+	full, _ := PressureHydrogenMassKg(35, 15, 520)
+	if got.RemainingHydrogenPercent == nil || *got.RemainingHydrogenPercent != round3(5.12345/full*100) || *got.HydrogenFullCapacityKg != full {
+		t.Fatal(got)
+	}
+}
+
+func TestRealtimeHydrogenFallbackSkipsIncompleteButBlocksInvalid(t *testing.T) {
+	now := time.Now()
+	refs := []realtimeFrameReference{{VIN: "V1"}}
+	raw := func(parsed string, age time.Duration) realtimeRawFrame {
+		return realtimeRawFrame{VIN: "V1", Protocol: "GB32960", EventMS: sql.NullInt64{Int64: now.Add(-age).UnixMilli(), Valid: true}, Parsed: sql.NullString{String: parsed, Valid: true}}
+	}
+	for _, tc := range []struct{ latest, status string }{
+		{`{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":20}`, "NORMAL"},
+		{`{"gb32960.fuel_cell.max_hydrogen_pressure_mpa":null}`, "INVALID"},
+	} {
+		points := map[string]RealtimeVehiclePoint{"V1": {LiveHydrogen: missingRealtimeHydrogen("GB32960")}}
+		applyRealtimeHydrogenFallback(points, refs, []realtimeRawFrame{raw(fmtRealtimePT(35, 15), 2*time.Minute), raw(tc.latest, time.Minute)}, now, map[string]float64{"V1": 520})
+		got := points["V1"].LiveHydrogen
+		if got.HydrogenDataStatus != tc.status {
+			t.Fatal(got)
+		}
+		if tc.status == "NORMAL" && (got.RemainingHydrogenPercent == nil || *got.RemainingHydrogenPercent != 100) {
+			t.Fatal(got)
+		}
+	}
+	got := realtimeHydrogenWithCapacity(`{}`, now, now, 520)
+	if got.RemainingHydrogenPercentStatus != "MISSING" || got.HydrogenPercentReason == nil || *got.HydrogenPercentReason != "MISSING_HYDROGEN_MEASUREMENT" {
+		t.Fatal(got)
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/realtime_live.go

@@ -0,0 +1,498 @@
+package openplatform
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"log"
+	"math"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// GB32960 live freshness is an API policy, not an assertion about the device's
+// negotiated reporting interval.
+const realtimeHydrogenStaleSeconds int64 = 300
+
+type RealtimeHydrogenData struct {
+	HydrogenPressureTemperatureSource *string  `json:"hydrogenPressureTemperatureSource"`
+	RemainingHydrogenPercentSource    *string  `json:"remainingHydrogenPercentSource"`
+	HydrogenFullCapacityKg            *float64 `json:"hydrogenFullCapacityKg"`
+	HydrogenTankCapacityL             *float64 `json:"hydrogenTankCapacityL"`
+	HydrogenFullPressureMPa           *float64 `json:"hydrogenFullPressureMPa"`
+	HydrogenReferenceTemperatureC     *float64 `json:"hydrogenReferenceTemperatureC"`
+	HydrogenEstimatePressureMPa       *float64 `json:"hydrogenEstimatePressureMPa"`
+	HydrogenEstimateTemperatureC      *float64 `json:"hydrogenEstimateTemperatureC"`
+	HydrogenCalculationVersion        *string  `json:"hydrogenCalculationVersion"`
+	HydrogenCapacitySource            *string  `json:"hydrogenCapacitySource"`
+	HydrogenPercentReason             *string  `json:"hydrogenPercentReason"`
+	RemainingHydrogenKg               *float64 `json:"remainingHydrogenKg"`
+	RemainingHydrogenPercent          *float64 `json:"remainingHydrogenPercent"`
+	HydrogenRecordTime                *string  `json:"hydrogenRecordTime"`
+	HydrogenDataStatus                string   `json:"hydrogenDataStatus"`
+	RemainingHydrogenKgStatus         string   `json:"remainingHydrogenKgStatus"`
+	RemainingHydrogenPercentStatus    string   `json:"remainingHydrogenPercentStatus"`
+	HydrogenValueSource               *string  `json:"hydrogenValueSource"`
+	HydrogenSourceProtocol            *string  `json:"hydrogenSourceProtocol"`
+	HydrogenStaleAfterSeconds         *int64   `json:"hydrogenStaleAfterSeconds"`
+	HydrogenExpectedIntervalSeconds   *int64   `json:"hydrogenExpectedIntervalSeconds"`
+}
+
+func missingRealtimeHydrogen(protocol string) RealtimeHydrogenData {
+	status := "UNSUPPORTED"
+	if protocol == "" || protocol == "GB32960" {
+		status = "MISSING"
+	}
+	result := RealtimeHydrogenData{HydrogenDataStatus: status, RemainingHydrogenKgStatus: status, RemainingHydrogenPercentStatus: status}
+	if protocol == "GB32960" {
+		threshold := realtimeHydrogenStaleSeconds
+		result.HydrogenStaleAfterSeconds = &threshold
+		result.HydrogenSourceProtocol = &protocol
+	}
+	return result
+}
+
+func applyRealtimeLiveData(item *RealtimeVehicleResult, point RealtimeVehiclePoint, location *time.Location) {
+	item.RealtimeHydrogenData = point.LiveHydrogen
+	if item.HydrogenDataStatus == "" {
+		item.RealtimeHydrogenData = missingRealtimeHydrogen(point.Protocol)
+	}
+	if point.GPSFixStatus != "" {
+		item.GPSFixStatus = point.GPSFixStatus
+	}
+	if point.CoordinateSystem != "" {
+		item.CoordinateSystem = point.CoordinateSystem
+	}
+	if !point.LocationObservedAt.IsZero() {
+		at := point.LocationObservedAt.In(location).Format(time.RFC3339Nano)
+		item.LocationRecordTime = &at
+	}
+}
+
+func realtimeHydrogenFromFrame(parsed string, observedAt, now time.Time) RealtimeHydrogenData {
+	result := missingRealtimeHydrogen("GB32960")
+	var fields map[string]any
+	if json.Unmarshal([]byte(parsed), &fields) != nil {
+		return result
+	}
+	for _, key := range hydrogenMassFields {
+		value, exists := fields[key]
+		if !exists {
+			continue
+		}
+		// A malformed or explicit protocol invalid value must never fall through to
+		// an alias retaining a different reading.
+		mass, valid := numericValue(value)
+		if !observedAt.IsZero() {
+			at := observedAt.In(time.FixedZone("Asia/Shanghai", 8*60*60)).Format(time.RFC3339Nano)
+			result.HydrogenRecordTime = &at
+		}
+		if !valid || math.IsNaN(mass) || math.IsInf(mass, 0) || mass < 0 || mass > 200 || observedAt.IsZero() || observedAt.After(now.Add(time.Minute)) {
+			result.HydrogenDataStatus, result.RemainingHydrogenKgStatus = "INVALID", "INVALID"
+			return result
+		}
+		mass = round3(mass)
+		result.RemainingHydrogenKg = &mass
+		source := "REPORTED"
+		result.HydrogenValueSource = &source
+		result.HydrogenDataStatus, result.RemainingHydrogenKgStatus = "PARTIAL", "NORMAL"
+		if now.Sub(observedAt) > time.Duration(realtimeHydrogenStaleSeconds)*time.Second {
+			result.HydrogenDataStatus, result.RemainingHydrogenKgStatus = "STALE", "STALE"
+		}
+		return result
+	}
+	return result
+}
+
+// GPS flags are read only from the exact raw frame which produced the chosen
+// location. A snapshot's JSON is merge-patched and cannot prove field freshness.
+func realtimeGPSFromFrame(protocol, parsed string) (string, string) {
+	fix, coordinate := "UNKNOWN", "UNKNOWN"
+	var fields map[string]any
+	if json.Unmarshal([]byte(parsed), &fields) != nil {
+		return fix, coordinate
+	}
+	switch protocol {
+	case "GB32960":
+		if flag, ok := numericValue(fields["gb32960.position.position_status"]); ok && flag >= 0 && flag <= 7 && math.Trunc(flag) == flag {
+			fix = "FIXED"
+			if int(flag)&1 != 0 {
+				fix = "NO_FIX"
+			}
+		}
+		if code, exists := fields["gb32960.position.coordinate_system"]; exists {
+			if value, ok := numericValue(code); ok {
+				switch value {
+				case 1:
+					coordinate = "WGS84"
+				case 2:
+					coordinate = "GCJ02"
+				}
+			}
+		}
+	case "JT808":
+		if flag, ok := numericValue(fields["jt808.location.status_flag"]); ok && flag >= 0 && flag <= math.MaxUint32 && math.Trunc(flag) == flag {
+			fix = "NO_FIX"
+			if uint32(flag)&2 != 0 {
+				fix = "FIXED"
+			}
+		}
+	}
+	return fix, coordinate
+}
+
+type realtimeFrameReference struct {
+	VIN, Protocol, EventID string
+	ReceivedAt             time.Time
+	Hydrogen, Location     bool
+}
+
+func realtimeReferenceKey(vin, protocol, eventID string) string {
+	return vin + "\x00" + protocol + "\x00" + eventID
+}
+
+// An optional history outage must not make previously available realtime fields
+// disappear. A shared deadline bounds enrichment even for the 2,000 VIN batch.
+func (r *MySQLRepository) enrichRealtimeLiveData(ctx context.Context, vins []string, points map[string]RealtimeVehiclePoint, now time.Time) error {
+	for vin, point := range points {
+		point.LiveHydrogen = missingRealtimeHydrogen("")
+		points[vin] = point
+	}
+	bounded, cancel := context.WithTimeout(ctx, 3*time.Second)
+	defer cancel()
+	if err := r.loadRealtimeLiveData(bounded, vins, points, now); err != nil {
+		log.Printf("openplatform realtime enrichment unavailable: type=%T reason=%s", err, realtimeEnrichmentErrorReason(err))
+		// Keep successfully proven raw-frame values, and mark every unresolved
+		// field missing/unknown rather than classifying a storage error unsupported.
+		for vin, point := range points {
+			if point.LiveHydrogen.HydrogenRecordTime == nil {
+				point.LiveHydrogen = missingRealtimeHydrogen("")
+			}
+			points[vin] = point
+		}
+	}
+	return nil
+}
+
+func (r *MySQLRepository) loadRealtimeLiveData(ctx context.Context, vins []string, points map[string]RealtimeVehiclePoint, now time.Time) error {
+	for vin, point := range points {
+		point.LiveHydrogen = missingRealtimeHydrogen(point.Protocol)
+		points[vin] = point
+	}
+	// Repositories used without history retain compatible old fields and explicit
+	// missing statuses; merged MySQL JSON is never used as a fallback.
+	if r.tdengine == nil || r.tdDatabase == "" {
+		return fmt.Errorf("realtime history is not configured")
+	}
+	refs := map[string]realtimeFrameReference{}
+	for vin, point := range points {
+		if point.LocationEventID != "" && !point.LocationReceivedAt.IsZero() {
+			ref := realtimeFrameReference{VIN: vin, Protocol: point.Protocol, EventID: point.LocationEventID, ReceivedAt: point.LocationReceivedAt, Location: true}
+			refs[realtimeReferenceKey(vin, ref.Protocol, ref.EventID)] = ref
+		}
+	}
+	placeholders := strings.TrimRight(strings.Repeat("?,", len(vins)), ",")
+	args := make([]any, len(vins))
+	for i, vin := range vins {
+		args[i] = vin
+	}
+	rows, err := r.db.QueryContext(ctx, `SELECT vin,protocol,event_id,received_at FROM vehicle_realtime_snapshot WHERE BINARY vin IN (`+placeholders+`) AND protocol='GB32960'`, args...)
+	if err != nil {
+		return err
+	}
+	for rows.Next() {
+		var ref realtimeFrameReference
+		var received sql.NullTime
+		var eventID sql.NullString
+		if err := rows.Scan(&ref.VIN, &ref.Protocol, &eventID, &received); err != nil {
+			rows.Close()
+			return err
+		}
+		point, exists := points[ref.VIN]
+		if !exists {
+			continue
+		} // preserve existing realtime row selection contract
+		point.LiveHydrogen = missingRealtimeHydrogen("GB32960")
+		points[ref.VIN] = point
+		if !received.Valid || !eventID.Valid || eventID.String == "" {
+			continue
+		}
+		ref.EventID, ref.ReceivedAt, ref.Hydrogen = eventID.String, received.Time, true
+		key := realtimeReferenceKey(ref.VIN, ref.Protocol, ref.EventID)
+		if prior, ok := refs[key]; ok {
+			ref.Location = prior.Location
+		}
+		refs[key] = ref
+	}
+	if err := rows.Err(); err != nil {
+		rows.Close()
+		return err
+	}
+	rows.Close()
+	ordered := make([]realtimeFrameReference, 0, len(refs))
+	for _, ref := range refs {
+		ordered = append(ordered, ref)
+	}
+
+	// At most two references per requested VIN. Batches bound SQL size; primary
+	// timestamp and VIN tag filters prevent unbounded history scans.
+	frames, loadErr := r.loadRealtimeRawFrameBatches(ctx, ordered)
+	capacities, capacityErr := r.loadRealtimeHydrogenCapacities(ctx, vins)
+	if capacityErr != nil {
+		log.Printf("openplatform realtime hydrogen capacity unavailable: %s", realtimeEnrichmentErrorReason(capacityErr))
+	}
+	for _, frame := range frames {
+		ref, exists := refs[realtimeReferenceKey(frame.VIN, frame.Protocol, frame.EventID)]
+		if !exists {
+			continue
+		}
+		point, exists := points[frame.VIN]
+		if !exists {
+			continue
+		}
+		if ref.Hydrogen {
+			var at time.Time
+			if frame.EventMS.Valid && frame.EventMS.Int64 > 0 {
+				at = time.UnixMilli(frame.EventMS.Int64)
+			}
+			point.LiveHydrogen = realtimeHydrogenWithCapacity(frame.Parsed.String, at, now, capacities[frame.VIN])
+		}
+		if ref.Location {
+			point.GPSFixStatus, point.CoordinateSystem = realtimeGPSFromFrame(frame.Protocol, frame.Parsed.String)
+		}
+		points[frame.VIN] = point
+	}
+	if loadErr == nil && ctx.Err() == nil {
+		var missing []realtimeFrameReference
+		for _, ref := range refs {
+			if ref.Hydrogen && points[ref.VIN].LiveHydrogen.HydrogenDataStatus == "MISSING" {
+				missing = append(missing, ref)
+			}
+		}
+		fallback, err := r.loadRealtimeRawFrameBatchesWithQuery(ctx, missing, realtimeHydrogenFallbackQuery, 1)
+		applyRealtimeHydrogenFallback(points, missing, fallback, now, capacities)
+		if err != nil {
+			return err
+		}
+	}
+	return loadErr
+}
+
+// Only explicitly missing hydrogen can be filled. In particular, the newest
+// invalid measurement must never be hidden by an older valid reading.
+func applyRealtimeHydrogenFallback(points map[string]RealtimeVehiclePoint, refs []realtimeFrameReference, frames []realtimeRawFrame, now time.Time, capacityMaps ...map[string]float64) {
+	allowed := make(map[string]bool, len(refs))
+	for _, ref := range refs {
+		allowed[ref.VIN] = true
+	}
+	// SQL orders by event_time, not arrival time: delayed retransmissions must not
+	// displace newer measurements. Keep that rule explicit when processing rows.
+	sort.SliceStable(frames, func(i, j int) bool { return frames[i].EventMS.Int64 > frames[j].EventMS.Int64 })
+	for _, frame := range frames {
+		if !allowed[frame.VIN] || frame.Protocol != "GB32960" {
+			continue
+		}
+		point, exists := points[frame.VIN]
+		if !exists || point.LiveHydrogen.HydrogenDataStatus != "MISSING" {
+			continue
+		}
+		var at time.Time
+		if frame.EventMS.Valid && frame.EventMS.Int64 > 0 {
+			at = time.UnixMilli(frame.EventMS.Int64)
+		}
+		data := realtimeHydrogenFromFrame(frame.Parsed.String, at, now)
+		if len(capacityMaps) > 0 {
+			data = realtimeHydrogenWithCapacity(frame.Parsed.String, at, now, capacityMaps[0][frame.VIN])
+		}
+		if data.HydrogenDataStatus == "MISSING" {
+			continue
+		} // LIKE is a prefilter, never a JSON parser.
+		point.LiveHydrogen = data
+		points[frame.VIN] = point
+	}
+}
+
+type realtimeRawFrame struct {
+	VIN, Protocol, EventID string
+	EventMS                sql.NullInt64
+	Parsed                 sql.NullString
+}
+
+type realtimeRawBatchResult struct {
+	frames []realtimeRawFrame
+	err    error
+}
+
+// Four workers cap pressure on history storage while avoiding serial latency
+// across a large authorized fleet. Only the caller writes the result map.
+func (r *MySQLRepository) loadRealtimeRawFrameBatches(ctx context.Context, refs []realtimeFrameReference) ([]realtimeRawFrame, error) {
+	return r.loadRealtimeRawFrameBatchesWithQuery(ctx, refs, realtimeRawFrameQuery, 100)
+}
+
+func (r *MySQLRepository) loadRealtimeRawFrameBatchesWithQuery(ctx context.Context, refs []realtimeFrameReference, buildQuery func(string, []realtimeFrameReference) (string, error), maxBatchSize int) ([]realtimeRawFrame, error) {
+	batches := realtimeRawReferenceBatches(refs)
+	if maxBatchSize == 1 {
+		var singleVINBatches [][]realtimeFrameReference
+		for _, batch := range batches {
+			for i := range batch {
+				singleVINBatches = append(singleVINBatches, batch[i:i+1])
+			}
+		}
+		batches = singleVINBatches
+	}
+	batchCount := len(batches)
+	if batchCount == 0 {
+		return nil, nil
+	}
+	jobs := make(chan string, batchCount)
+	results := make(chan realtimeRawBatchResult, batchCount)
+	for _, batch := range batches {
+		query, err := buildQuery(r.tdDatabase, batch)
+		if err != nil {
+			return nil, err
+		}
+		jobs <- query
+	}
+	close(jobs)
+	workers := 4
+	if batchCount < workers {
+		workers = batchCount
+	}
+	for worker := 0; worker < workers; worker++ {
+		go func() {
+			for query := range jobs {
+				if ctx.Err() != nil {
+					return
+				}
+				frames, err := r.loadRealtimeRawFrameBatch(ctx, query)
+				results <- realtimeRawBatchResult{frames: frames, err: err}
+			}
+		}()
+	}
+	var frames []realtimeRawFrame
+	var firstErr error
+	for batch := 0; batch < batchCount; batch++ {
+		var result realtimeRawBatchResult
+		select {
+		case result = <-results:
+		case <-ctx.Done():
+			return frames, ctx.Err()
+		}
+		if firstErr == nil && result.err != nil {
+			firstErr = result.err
+		}
+		frames = append(frames, result.frames...)
+	}
+	return frames, firstErr
+}
+
+func (r *MySQLRepository) loadRealtimeRawFrameBatch(ctx context.Context, query string) ([]realtimeRawFrame, error) {
+	rows, err := r.tdengine.QueryContext(ctx, query)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var frames []realtimeRawFrame
+	for rows.Next() {
+		var frame realtimeRawFrame
+		if err := rows.Scan(&frame.VIN, &frame.Protocol, &frame.EventID, &frame.EventMS, &frame.Parsed); err != nil {
+			return frames, err
+		}
+		frames = append(frames, frame)
+	}
+	return frames, rows.Err()
+}
+
+// Keep historical outliers away from current data: one query never spans more
+// than five minutes of arrival time, even when a fleet includes months-old rows.
+// Newest batches run first so the shared deadline favors currently active cars.
+func realtimeRawReferenceBatches(refs []realtimeFrameReference) [][]realtimeFrameReference {
+	ordered := append([]realtimeFrameReference(nil), refs...)
+	sort.Slice(ordered, func(i, j int) bool { return ordered[i].ReceivedAt.After(ordered[j].ReceivedAt) })
+	var batches [][]realtimeFrameReference
+	for start := 0; start < len(ordered); {
+		end := start + 1
+		for end < len(ordered) && end-start < 100 && ordered[start].ReceivedAt.Sub(ordered[end].ReceivedAt) <= 5*time.Minute {
+			end++
+		}
+		batches = append(batches, ordered[start:end])
+		start = end
+	}
+	return batches
+}
+
+func realtimeRawFrameQuery(database string, refs []realtimeFrameReference) (string, error) {
+	if !validTDIdentifier(database) || len(refs) == 0 || len(refs) > 100 {
+		return "", fmt.Errorf("invalid realtime raw-frame query")
+	}
+	quote := func(s string) string { return "'" + strings.ReplaceAll(s, "'", "''") + "'" }
+	clauses, vins, timestamps := make([]string, 0, len(refs)), make([]string, 0, len(refs)), make([]string, 0, len(refs))
+	min, max := refs[0].ReceivedAt.UnixMilli(), refs[0].ReceivedAt.UnixMilli()
+	for _, ref := range refs {
+		at := ref.ReceivedAt.UnixMilli()
+		if at < min {
+			min = at
+		}
+		if at > max {
+			max = at
+		}
+		vins = append(vins, quote(ref.VIN))
+		timestamps = append(timestamps, strconv.FormatInt(at, 10))
+		clauses = append(clauses, "(ts="+strconv.FormatInt(at, 10)+" AND vin="+quote(ref.VIN)+" AND protocol="+quote(ref.Protocol)+" AND event_id="+quote(ref.EventID)+")")
+	}
+	return `SELECT vin,protocol,event_id,CAST(event_time AS BIGINT),parsed_json FROM ` + database + `.raw_frames WHERE ts>=` + strconv.FormatInt(min, 10) + ` AND ts<=` + strconv.FormatInt(max, 10) + ` AND ts IN (` + strings.Join(timestamps, ",") + `) AND vin IN (` + strings.Join(vins, ",") + `) AND parse_status='OK' AND (` + strings.Join(clauses, " OR ") + `) LIMIT ` + strconv.Itoa(len(refs)*2), nil
+}
+
+// Search only five minutes before one snapshot arrival. TDengine applies LIMIT
+// globally even with PARTITION BY, so each fallback query must contain one VIN.
+// The shared worker pool still bounds concurrency to four and uses one deadline.
+func realtimeHydrogenFallbackQuery(database string, refs []realtimeFrameReference) (string, error) {
+	if !validTDIdentifier(database) || len(refs) != 1 {
+		return "", fmt.Errorf("invalid realtime hydrogen fallback query")
+	}
+	quote := func(s string) string { return "'" + strings.ReplaceAll(s, "'", "''") + "'" }
+	min, max := refs[0].ReceivedAt.Add(-5*time.Minute).UnixMilli(), refs[0].ReceivedAt.UnixMilli()
+	var clauses, vins, fields []string
+	for _, ref := range refs {
+		start, end := ref.ReceivedAt.Add(-5*time.Minute).UnixMilli(), ref.ReceivedAt.UnixMilli()
+		if start < min {
+			min = start
+		}
+		if end > max {
+			max = end
+		}
+		vins = append(vins, quote(ref.VIN))
+		clauses = append(clauses, "(vin="+quote(ref.VIN)+" AND ts>="+strconv.FormatInt(start, 10)+" AND ts<="+strconv.FormatInt(end, 10)+")")
+	}
+	for _, key := range append(append([]string{}, hydrogenMassFields...), realtimeHydrogenPressureField, realtimeHydrogenTemperatureField) {
+		fields = append(fields, "parsed_json LIKE "+quote("%\""+key+"\":%"))
+	}
+	return `SELECT vin,protocol,event_id,CAST(event_time AS BIGINT),parsed_json FROM ` + database + `.raw_frames WHERE protocol='GB32960' AND ts>=` + strconv.FormatInt(min, 10) + ` AND ts<=` + strconv.FormatInt(max, 10) + ` AND vin IN (` + strings.Join(vins, ",") + `) AND parse_status='OK' AND (` + strings.Join(clauses, " OR ") + `) AND (` + strings.Join(fields, " OR ") + `) ORDER BY event_time DESC,ts DESC LIMIT 5`, nil
+}
+
+var realtimeErrorQuotedText = regexp.MustCompile(`'[^']*'|"[^"]*"`)
+var realtimeErrorVIN = regexp.MustCompile(`\b[A-Z0-9]{12,32}\b`)
+
+// Driver errors sometimes append the whole query. Keep the failure reason for
+// operations without writing fleet identifiers or SQL literals to the log.
+func realtimeEnrichmentErrorReason(err error) string {
+	reason := err.Error()
+	upper := strings.ToUpper(reason)
+	for _, keyword := range []string{"SELECT ", "INSERT ", "UPDATE ", "DELETE "} {
+		if index := strings.Index(upper, keyword); index >= 0 {
+			reason = reason[:index] + "[SQL omitted]"
+			break
+		}
+	}
+	reason = realtimeErrorQuotedText.ReplaceAllString(reason, "[quoted value omitted]")
+	reason = realtimeErrorVIN.ReplaceAllString(reason, "[VIN omitted]")
+	reason = strings.Join(strings.Fields(reason), " ")
+	if len(reason) > 300 {
+		reason = reason[:300] + "..."
+	}
+	return reason
+}

vehicle-data-platform/apps/api/internal/openplatform/realtime_live_test.go

@@ -0,0 +1,361 @@
+package openplatform
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"math"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/DATA-DOG/go-sqlmock"
+)
+
+func TestRealtimeHydrogenQualityAndIndependentNulls(t *testing.T) {
+	now := time.Date(2026, 9, 8, 12, 0, 0, 0, time.UTC)
+	for _, tc := range []struct {
+		name, parsed, status, kgStatus string
+		age                            time.Duration
+		kg                             *float64
+	}{
+		{"measured", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":18.6}`, "PARTIAL", "NORMAL", 0, realLiveFloat(18.6)},
+		{"true zero", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":0}`, "PARTIAL", "NORMAL", 0, realLiveFloat(0)},
+		{"stale", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":18.6}`, "STALE", "STALE", 301 * time.Second, realLiveFloat(18.6)},
+		{"fresh boundary", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":18.6}`, "PARTIAL", "NORMAL", 300 * time.Second, realLiveFloat(18.6)},
+		{"SOC is not hydrogen", `{"gb32960.vehicle.soc_percent":60}`, "MISSING", "MISSING", 0, nil},
+		{"invalid", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":-1}`, "INVALID", "INVALID", 0, nil},
+		{"protocol invalid", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":null}`, "INVALID", "INVALID", 0, nil},
+		{"nonfinite", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":"NaN"}`, "INVALID", "INVALID", 0, nil},
+		{"future clock", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":1}`, "INVALID", "INVALID", -2 * time.Minute, nil},
+		{"invalid alias must not fallback", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":null,"gd_fc_vehicle_hydrogen_mass_kg":10}`, "INVALID", "INVALID", 0, nil},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			got := realtimeHydrogenFromFrame(tc.parsed, now.Add(-tc.age), now)
+			if got.HydrogenDataStatus != tc.status || got.RemainingHydrogenKgStatus != tc.kgStatus || got.RemainingHydrogenPercent != nil || got.RemainingHydrogenPercentStatus != "MISSING" {
+				t.Fatalf("%+v", got)
+			}
+			if (tc.kg == nil) != (got.RemainingHydrogenKg == nil) || tc.kg != nil && math.Abs(*got.RemainingHydrogenKg-*tc.kg) > 0.0001 {
+				t.Fatalf("kg=%v", got.RemainingHydrogenKg)
+			}
+			data, err := json.Marshal(got)
+			if err != nil || !strings.Contains(string(data), `"remainingHydrogenPercent":null`) {
+				t.Fatalf("json=%s err=%v", data, err)
+			}
+		})
+	}
+	if got := missingRealtimeHydrogen("JT808"); got.HydrogenDataStatus != "UNSUPPORTED" || got.RemainingHydrogenKg != nil {
+		t.Fatal(got)
+	}
+}
+func realLiveFloat(v float64) *float64 { return &v }
+
+func TestRealtimeGPSFlagsIndependentOfFreshness(t *testing.T) {
+	for _, tc := range []struct{ protocol, parsed, fix, coordinate string }{
+		{"GB32960", `{"gb32960.position.position_status":0}`, "FIXED", "UNKNOWN"},
+		{"GB32960", `{"gb32960.position.position_status":1}`, "NO_FIX", "UNKNOWN"},
+		{"GB32960", `{"gb32960.position.position_status":254}`, "UNKNOWN", "UNKNOWN"},
+		{"GB32960", `{"gb32960.position.position_status":0,"gb32960.position.coordinate_system":2}`, "FIXED", "GCJ02"},
+		{"GB32960", `{"gb32960.position.position_status":0,"gb32960.position.coordinate_system":3}`, "FIXED", "UNKNOWN"},
+		{"JT808", `{"jt808.location.status_flag":2}`, "FIXED", "UNKNOWN"},
+		{"JT808", `{"jt808.location.status_flag":0}`, "NO_FIX", "UNKNOWN"},
+		{"YUTONG_MQTT", `{"latitude":23,"longitude":113}`, "UNKNOWN", "UNKNOWN"},
+	} {
+		fix, coordinate := realtimeGPSFromFrame(tc.protocol, tc.parsed)
+		if fix != tc.fix || coordinate != tc.coordinate {
+			t.Fatalf("%+v got %s %s", tc, fix, coordinate)
+		}
+	}
+}
+
+func TestRealtimeRawFrameEnrichmentMatchesLocationAndHydrogenSeparately(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	td, tdmock, _ := sqlmock.New()
+	defer td.Close()
+	now := time.Date(2026, 9, 8, 12, 0, 0, 0, time.UTC)
+	vin := "LTEST32960VIN0001"
+	points := map[string]RealtimeVehiclePoint{vin: {VIN: vin, Protocol: "JT808", LocationEventID: "loc", LocationReceivedAt: now, LocationObservedAt: now.Add(-time.Hour)}}
+	mock.ExpectQuery("SELECT vin,protocol,event_id,received_at FROM vehicle_realtime_snapshot").WithArgs(vin).WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "received_at"}).AddRow(vin, "GB32960", "hydrogen", now))
+	tdmock.ExpectQuery("SELECT vin,protocol,event_id,CAST\\(event_time AS BIGINT\\),parsed_json FROM vehicle_ts.raw_frames WHERE ts>=.*AND vin IN .*event_id='.*LIMIT 4").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "event_time", "parsed_json"}).
+		AddRow(vin, "GB32960", "hydrogen", now.UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":0}`).
+		AddRow(vin, "JT808", "loc", now.Add(-time.Hour).UnixMilli(), `{"jt808.location.status_flag":2}`).
+		AddRow("OTHER", "GB32960", "hydrogen", now.UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":123}`))
+	err := NewMySQLRepository(db).WithTDengine(td, "vehicle_ts").enrichRealtimeLiveData(context.Background(), []string{vin}, points, now)
+	if err != nil {
+		t.Fatal(err)
+	}
+	got := points[vin]
+	if got.LiveHydrogen.RemainingHydrogenKg == nil || *got.LiveHydrogen.RemainingHydrogenKg != 0 || got.GPSFixStatus != "FIXED" || got.LiveHydrogen.HydrogenDataStatus != "PARTIAL" {
+		t.Fatalf("%+v", got)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+	if err := tdmock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestRealtimeRawFrameLagIsMissingNotError(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	td, tdmock, _ := sqlmock.New()
+	defer td.Close()
+	now := time.Now()
+	vin := "LTEST32960VIN0001"
+	points := map[string]RealtimeVehiclePoint{vin: {Protocol: "GB32960"}}
+	mock.ExpectQuery("SELECT vin,protocol,event_id,received_at").WithArgs(vin).WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "received_at"}).AddRow(vin, "GB32960", "new", now))
+	tdmock.ExpectQuery("SELECT vin,protocol,event_id").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "event_time", "parsed_json"}))
+	tdmock.ExpectQuery("SELECT vin,protocol,event_id.*parsed_json LIKE").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "event_time", "parsed_json"}))
+	if err := NewMySQLRepository(db).WithTDengine(td, "vehicle_ts").enrichRealtimeLiveData(context.Background(), []string{vin}, points, now); err != nil {
+		t.Fatal(err)
+	}
+	if points[vin].LiveHydrogen.HydrogenDataStatus != "MISSING" {
+		t.Fatal(points[vin])
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+	if err := tdmock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestRealtimeRawFrameQueryBoundsAndIdentity(t *testing.T) {
+	at := time.UnixMilli(10000)
+	query, err := realtimeRawFrameQuery("vehicle_ts", []realtimeFrameReference{{VIN: "VIN'1", Protocol: "GB32960", EventID: "id'1", ReceivedAt: at}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, want := range []string{"ts>=10000 AND ts<=10000", "ts IN (10000)", "vin='VIN''1'", "protocol='GB32960'", "event_id='id''1'", "LIMIT 2"} {
+		if !strings.Contains(query, want) {
+			t.Fatalf("missing %s in %s", want, query)
+		}
+	}
+	if _, err := realtimeRawFrameQuery("bad;sql", []realtimeFrameReference{{}}); err == nil {
+		t.Fatal("accepted database injection")
+	}
+	if _, err := realtimeRawFrameQuery("vehicle_ts", make([]realtimeFrameReference, 101)); err == nil {
+		t.Fatal("accepted unbounded batch")
+	}
+}
+
+func TestRealtimeHistoryFailurePreservesOldFields(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	td, tdmock, _ := sqlmock.New()
+	defer td.Close()
+	now := time.Now()
+	vin := "LTEST32960VIN0001"
+	points := map[string]RealtimeVehiclePoint{vin: {Protocol: "JT808", Longitude: 113, Latitude: 23, Online: true}}
+	mock.ExpectQuery("SELECT vin,protocol,event_id,received_at").WithArgs(vin).WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "received_at"}).AddRow(vin, "GB32960", "new", now))
+	tdmock.ExpectQuery("SELECT vin,protocol,event_id").WillReturnError(context.DeadlineExceeded)
+	if err := NewMySQLRepository(db).WithTDengine(td, "vehicle_ts").enrichRealtimeLiveData(context.Background(), []string{vin}, points, now); err != nil {
+		t.Fatal(err)
+	}
+	got := points[vin]
+	if got.LiveHydrogen.HydrogenDataStatus != "MISSING" || !got.Online || got.Longitude != 113 {
+		t.Fatalf("%+v", got)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+	if err := tdmock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestRealtimeServiceNoFixAndHistoricalFixed(t *testing.T) {
+	now := time.Now()
+	vin := "LTEST32960VIN0001"
+	for _, fix := range []string{"FIXED", "NO_FIX", "UNKNOWN"} {
+		t.Run(fix, func(t *testing.T) {
+			repository := &fakeRepository{app: AppCredential{ID: 9}, vehicles: map[string]AuthorizedVehicle{"测试车牌": {VIN: vin, Plate: "测试车牌"}}, realtime: map[string]RealtimeVehiclePoint{vin: {VIN: vin, Protocol: "GB32960", Longitude: 113, Latitude: 23, ObservedAt: now.Add(-96 * time.Hour), LocationObservedAt: now.Add(-96 * time.Hour), GPSFixStatus: fix}}}
+			service := NewService(repository)
+			service.now = func() time.Time { return now }
+			result, err := service.QueryRealtimeVehicles(context.Background(), "0123456789abcdef0123456789abcdef", "test", RealtimeVehicleRequest{PlateNumbers: []string{"测试车牌"}})
+			if err != nil {
+				t.Fatal(err)
+			}
+			got := result[0]
+			if got.Online || got.MotionStatus != "offline" || got.GPSFixStatus != fix || got.LocationRecordTime == nil {
+				t.Fatalf("%+v", got)
+			}
+			if fix == "NO_FIX" {
+				if got.LocationAvailable || got.Longitude != nil || got.Latitude != nil {
+					t.Fatalf("invalid position exposed: %+v", got)
+				}
+			} else if !got.LocationAvailable {
+				t.Fatalf("historical position discarded: %+v", got)
+			}
+		})
+	}
+}
+
+func TestRealtimeBatchesReadConcurrentlyWithinSharedDeadline(t *testing.T) {
+	td, mock, _ := sqlmock.New()
+	defer td.Close()
+	mock.MatchExpectationsInOrder(false)
+	refs := make([]realtimeFrameReference, 400)
+	for i := range refs {
+		refs[i] = realtimeFrameReference{VIN: "VIN", Protocol: "GB32960", EventID: "event", ReceivedAt: time.UnixMilli(int64(i))}
+	}
+	for i := 0; i < 4; i++ {
+		mock.ExpectQuery("SELECT vin,protocol,event_id").WillDelayFor(100 * time.Millisecond).WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "event_time", "parsed_json"}))
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 350*time.Millisecond)
+	defer cancel()
+	repository := &MySQLRepository{tdengine: td, tdDatabase: "vehicle_ts"}
+	if _, err := repository.loadRealtimeRawFrameBatches(ctx, refs); err != nil {
+		t.Fatal(err)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestRealtimeBatchesSeparateHistoricalOutliersAndPreferNewest(t *testing.T) {
+	now := time.Now()
+	refs := []realtimeFrameReference{{EventID: "old", ReceivedAt: now.Add(-90 * 24 * time.Hour)}, {EventID: "recent", ReceivedAt: now.Add(-time.Minute)}, {EventID: "newest", ReceivedAt: now}, {EventID: "older", ReceivedAt: now.Add(-6 * time.Minute)}}
+	batches := realtimeRawReferenceBatches(refs)
+	if len(batches) != 3 || len(batches[0]) != 2 || batches[0][0].EventID != "newest" || batches[1][0].EventID != "older" || batches[2][0].EventID != "old" {
+		t.Fatalf("%+v", batches)
+	}
+	if refs[0].EventID != "old" {
+		t.Fatal("mutated input ordering")
+	}
+	refs = make([]realtimeFrameReference, 201)
+	for i := range refs {
+		refs[i].ReceivedAt = now
+	}
+	batches = realtimeRawReferenceBatches(refs)
+	if len(batches) != 3 || len(batches[0]) != 100 || len(batches[1]) != 100 || len(batches[2]) != 1 {
+		t.Fatalf("unexpected count bounds %+v", batches)
+	}
+}
+
+func TestRealtimeMissingHydrogenFallsBackToActualFieldSample(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	td, tdmock, _ := sqlmock.New()
+	defer td.Close()
+	now := time.Now()
+	vin := "LTEST32960VIN0001"
+	points := map[string]RealtimeVehiclePoint{vin: {Protocol: "GB32960"}}
+	mock.ExpectQuery("SELECT vin,protocol,event_id,received_at").WithArgs(vin).WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "received_at"}).AddRow(vin, "GB32960", "new-location-only", now))
+	columns := []string{"vin", "protocol", "event_id", "event_time", "parsed_json"}
+	tdmock.ExpectQuery("SELECT vin,protocol,event_id.*ts IN").WillReturnRows(sqlmock.NewRows(columns).AddRow(vin, "GB32960", "new-location-only", now.UnixMilli(), `{"gb32960.vehicle.speed_kmh":20}`))
+	sampleAt := now.Add(-90 * time.Second)
+	tdmock.ExpectQuery("SELECT vin,protocol,event_id.*parsed_json LIKE.*ORDER BY event_time DESC,ts DESC LIMIT 5").WillReturnRows(sqlmock.NewRows(columns).AddRow(vin, "GB32960", "older-hydrogen", sampleAt.UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":0}`))
+	if err := NewMySQLRepository(db).WithTDengine(td, "vehicle_ts").enrichRealtimeLiveData(context.Background(), []string{vin}, points, now); err != nil {
+		t.Fatal(err)
+	}
+	got := points[vin].LiveHydrogen
+	if got.HydrogenDataStatus != "PARTIAL" || got.RemainingHydrogenKg == nil || *got.RemainingHydrogenKg != 0 || got.HydrogenRecordTime == nil || *got.HydrogenValueSource != "REPORTED" {
+		t.Fatalf("%+v", got)
+	}
+	gotAt, err := time.Parse(time.RFC3339Nano, *got.HydrogenRecordTime)
+	if err != nil || gotAt.UnixMilli() != sampleAt.UnixMilli() {
+		t.Fatalf("time=%s err=%v", *got.HydrogenRecordTime, err)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+	if err := tdmock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestRealtimeHydrogenFallbackKeepsNewestInvalidAndSourceIdentity(t *testing.T) {
+	now := time.Now()
+	vin := "LTEST32960VIN0001"
+	point := RealtimeVehiclePoint{LiveHydrogen: missingRealtimeHydrogen("GB32960")}
+	points := map[string]RealtimeVehiclePoint{vin: point}
+	refs := []realtimeFrameReference{{VIN: vin, Protocol: "GB32960", Hydrogen: true, ReceivedAt: now}}
+	raw := func(vin, protocol, parsed string, at time.Time) realtimeRawFrame {
+		return realtimeRawFrame{VIN: vin, Protocol: protocol, Parsed: sql.NullString{String: parsed, Valid: true}, EventMS: sql.NullInt64{Int64: at.UnixMilli(), Valid: true}}
+	}
+	frames := []realtimeRawFrame{
+		raw(vin, "GB32960", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":4}`, now.Add(-2*time.Minute)),
+		raw(vin, "GB32960", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":null}`, now.Add(-time.Minute)),
+		raw("OTHER", "GB32960", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":100}`, now),
+		raw(vin, "JT808", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":100}`, now),
+	}
+	applyRealtimeHydrogenFallback(points, refs, frames, now)
+	if got := points[vin].LiveHydrogen; got.HydrogenDataStatus != "INVALID" || got.RemainingHydrogenKg != nil {
+		t.Fatalf("%+v", got)
+	}
+	applyRealtimeHydrogenFallback(points, refs, []realtimeRawFrame{raw(vin, "GB32960", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":9}`, now)}, now)
+	if points[vin].LiveHydrogen.HydrogenDataStatus != "INVALID" {
+		t.Fatal("overwrote existing invalid measurement")
+	}
+	points[vin] = point
+	applyRealtimeHydrogenFallback(points, refs, []realtimeRawFrame{raw(vin, "GB32960", `{"note":"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg"}`, now)}, now)
+	if points[vin].LiveHydrogen.HydrogenDataStatus != "MISSING" {
+		t.Fatal("accepted text instead of actual field")
+	}
+	points[vin] = point
+	applyRealtimeHydrogenFallback(points, refs, []realtimeRawFrame{raw(vin, "GB32960", `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":4}`, now.Add(-24*time.Hour))}, now)
+	if points[vin].LiveHydrogen.HydrogenDataStatus != "STALE" {
+		t.Fatal("historical sample incorrectly fresh")
+	}
+}
+
+func TestRealtimeHydrogenFallbackQueryLimitsEachVINWindow(t *testing.T) {
+	at := time.UnixMilli(1000000)
+	query, err := realtimeHydrogenFallbackQuery("vehicle_ts", []realtimeFrameReference{{VIN: "VIN'1", ReceivedAt: at}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, want := range []string{"protocol='GB32960'", "ts>=700000 AND ts<=1000000", "vin='VIN''1' AND ts>=700000 AND ts<=1000000", `parsed_json LIKE '%"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":%'`, "ORDER BY event_time DESC,ts DESC LIMIT 5"} {
+		if !strings.Contains(query, want) {
+			t.Fatalf("missing %s in %s", want, query)
+		}
+	}
+	if strings.Contains(query, "hydrogen_mass_kg IS NOT NULL") {
+		t.Fatal("must include explicit invalid readings")
+	}
+}
+
+func TestRealtimeHydrogenFallbackQueriesEachVINSeparately(t *testing.T) {
+	td, mock, _ := sqlmock.New()
+	defer td.Close()
+	mock.MatchExpectationsInOrder(false)
+	now := time.Now()
+	refs := []realtimeFrameReference{{VIN: "V1", ReceivedAt: now}, {VIN: "V2", ReceivedAt: now}, {VIN: "V3", ReceivedAt: now}}
+	for _, ref := range refs {
+		mock.ExpectQuery("SELECT vin,protocol,event_id.*vin IN \\('" + ref.VIN + "'\\).*ORDER BY event_time DESC,ts DESC LIMIT 5").WillReturnRows(sqlmock.NewRows([]string{"vin", "protocol", "event_id", "event_time", "parsed_json"}).AddRow(ref.VIN, "GB32960", "sample", now.UnixMilli(), `{"gb32960.gd_fc_vehicle_info.hydrogen_mass_kg":4}`))
+	}
+	repository := &MySQLRepository{tdengine: td, tdDatabase: "vehicle_ts"}
+	frames, err := repository.loadRealtimeRawFrameBatchesWithQuery(context.Background(), refs, realtimeHydrogenFallbackQuery, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	unique := map[string]bool{}
+	for _, frame := range frames {
+		unique[frame.VIN] = true
+	}
+	if len(frames) != 3 || len(unique) != 3 {
+		t.Fatalf("frames=%+v", frames)
+	}
+	if _, err := realtimeHydrogenFallbackQuery("vehicle_ts", refs); err == nil {
+		t.Fatal("accepted multi-VIN LIMIT 1 fallback")
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestRealtimeEnrichmentErrorReasonOmitsSQLAndVehicleIdentifiers(t *testing.T) {
+	for _, message := range []string{"driver failed near 'LTEST32960VIN0001': SELECT parsed_json FROM raw_frames WHERE vin='LTEST32960VIN0001'", "invalid LTEST32960VIN0001 \"private value\"", "SELECT vin FROM raw_frames"} {
+		got := realtimeEnrichmentErrorReason(fmt.Errorf("%s", message))
+		if strings.Contains(got, "LTEST32960VIN0001") || strings.Contains(got, "private value") || strings.Contains(got, "SELECT") {
+			t.Fatalf("leaked reason %s", got)
+		}
+	}
+	if got := realtimeEnrichmentErrorReason(context.DeadlineExceeded); got != "context deadline exceeded" {
+		t.Fatal(got)
+	}
+}

vehicle-data-platform/apps/api/internal/openplatform/service.go

@@ -29,6 +29,7 @@ var (
 )
 
 type Repository interface {
+	ReconciledMileageRange(context.Context, []string, string, string, []string) (map[string]DailyMileage, error)
 	Authenticate(context.Context, [sha256.Size]byte, time.Time, time.Time, time.Time) (AppCredential, error)
 	AuthorizedVehicles(context.Context, uint64, []string, time.Time, time.Time) (map[string]AuthorizedVehicle, error)
 	DailyHydrogen(context.Context, []string, string) (map[string]DailyHydrogen, error)
@@ -284,13 +285,14 @@ func (s *Service) QueryRealtimeVehicles(ctx context.Context, appKey, traceID str
 	results := make([]RealtimeVehicleResult, 0, len(plates))
 	for _, plate := range plates {
 		vehicle := vehicles[plate]
-		item := RealtimeVehicleResult{VIN: vehicle.VIN, PlateNumber: plate, MotionStatus: "offline", Status: StatusNoData}
+		item := RealtimeVehicleResult{VIN: vehicle.VIN, PlateNumber: plate, MotionStatus: "offline", Status: StatusNoData, RealtimeHydrogenData: missingRealtimeHydrogen(""), GPSFixStatus: "UNKNOWN", CoordinateSystem: "UNKNOWN"}
 		if point, ok := points[vehicle.VIN]; ok {
 			difference := int64(now.Sub(point.ObservedAt.In(s.location)).Seconds())
 			if difference < 0 {
 				difference = 0
 			}
 			item.Protocol = externalMileageProtocol(point.Protocol)
+			applyRealtimeLiveData(&item, point, s.location)
 			item.RecordTime = point.ObservedAt.In(s.location).Format("2006-01-02 15:04:05")
 			item.TimeDifferenceSeconds = &difference
 			item.Online = point.Online
@@ -304,7 +306,7 @@ func (s *Service) QueryRealtimeVehicles(ctx context.Context, appKey, traceID str
 			speed, mileage := round3(point.SpeedKmh), round3(point.TotalMileageKm)
 			item.SpeedKmh, item.TotalMileageKm = &speed, &mileage
 			item.SOCPercent = point.SOCPercent
-			if validCoordinate(point.Longitude, point.Latitude) {
+			if item.GPSFixStatus != "NO_FIX" && validCoordinate(point.Longitude, point.Latitude) {
 				longitude, latitude := point.Longitude, point.Latitude
 				item.Longitude, item.Latitude = &longitude, &latitude
 				item.LocationAvailable = true
@@ -346,9 +348,10 @@ func validCoordinate(longitude, latitude float64) bool {
 }
 
 type Service struct {
-	repository Repository
+	historicalLimiter historicalHydrogenLimiter
-	now        func() time.Time
+	repository        Repository
-	location   *time.Location
+	now               func() time.Time
+	location          *time.Location
 }
 
 type parsedGrant struct {
@@ -387,11 +390,13 @@ func (s *Service) QueryHydrogen(ctx context.Context, appKey, traceID string, req
 	results := make([]HydrogenResult, 0, len(plates))
 	for _, plate := range plates {
 		vehicle := vehicles[plate]
-		item := HydrogenResult{PlateNumber: plate, Date: date, Status: StatusNoData}
+		item := HydrogenResult{VIN: vehicle.VIN, PlateNumber: plate, Date: date, Status: StatusNoData}
 		// Sampling sufficiency is decided by the producer and persisted in
 		// quality_status. Imported refuelling-ledger rows can be authoritative
 		// with one transaction, while pressure-derived rows require two samples.
 		if value, ok := values[vehicle.VIN]; ok {
+			item.StatisticsStartTime, item.StatisticsEndTime = hydrogenStatisticsInterval(value.EvidenceJSON)
+			item.UpdatedAt = validStatisticsTimestamp(value.UpdatedAt)
 			item.CalculationPhase = value.CalculationPhase
 			item.AlgorithmVersion = value.AlgorithmVersion
 			item.QualityStatus = value.QualityStatus
@@ -431,35 +436,17 @@ func (s *Service) QueryMileage(ctx context.Context, appKey, traceID string, requ
 		plates = vehiclePlates(vehicles)
 	}
 	vins := vehicleVINs(vehicles)
-	values, err := s.repository.DailyMileage(ctx, vins, date, protocols)
+	values, err := s.repository.ReconciledMileageRange(ctx, vins, date, date, protocols)
 	if err != nil {
 		_ = s.repository.Audit(ctx, app.ID, "mileage_query", "error", traceID, len(plates), err.Error())
 		return nil, err
 	}
-	rollbacks, err := s.repository.MileageRollbacks(ctx, vins, date, date, protocols)
-	if err != nil {
-		_ = s.repository.Audit(ctx, app.ID, "mileage_query", "error", traceID, len(plates), err.Error())
-		return nil, err
-	}
-	missingVINs := missingMileageVINs(vins, values, rollbacks, date)
-	carried := map[string]DailyMileage{}
-	if len(missingVINs) > 0 {
-		carried, err = s.repository.LatestMileageBefore(ctx, missingVINs, date, protocols)
-		if err != nil {
-			_ = s.repository.Audit(ctx, app.ID, "mileage_query", "error", traceID, len(plates), err.Error())
-			return nil, err
-		}
-	}
 	results := make([]MileageResult, 0, len(plates))
 	for _, plate := range plates {
 		vehicle := vehicles[plate]
 		item := MileageResult{VIN: vehicle.VIN, PlateNumber: plate, Date: date, Status: StatusNoData}
-		if value, ok := values[vehicle.VIN]; ok && validDailyMileage(value) {
+		if value, ok := values[dailyMileageKey(vehicle.VIN, date)]; ok {
 			fillMileageResult(&item, value, value.MileageKm)
-		} else if rollbacks[dailyMileageKey(vehicle.VIN, date)] {
-			fillMileageAnomaly(&item)
-		} else if value, ok := carried[vehicle.VIN]; ok && validDailyMileage(value) {
-			fillMileageResult(&item, value, 0)
 		}
 		results = append(results, item)
 	}
@@ -552,35 +539,17 @@ func (s *Service) QueryMileageRange(ctx context.Context, appKey, traceID string,
 		vinSet[vehicle.VIN] = struct{}{}
 	}
 	values := map[string]DailyMileage{}
-	carried := map[string]DailyMileage{}
-	rollbacks := map[string]bool{}
 	if len(positions) > 0 {
 		vins := make([]string, 0, len(vinSet))
 		for vin := range vinSet {
 			vins = append(vins, vin)
 		}
 		sort.Strings(vins)
-		values, err = s.repository.DailyMileageRange(ctx, vins, queryStart.Format("2006-01-02"), queryEnd.Format("2006-01-02"), protocols)
+		values, err = s.repository.ReconciledMileageRange(ctx, vins, queryStart.Format("2006-01-02"), queryEnd.Format("2006-01-02"), protocols)
 		if err != nil {
 			_ = s.repository.Audit(ctx, app.ID, "mileage_range_query", "error", traceID, snapshot.VehicleCount, err.Error())
 			return MileageRangeResponse{}, err
 		}
-		rollbacks, err = s.repository.MileageRollbacks(ctx, vins, queryStart.Format("2006-01-02"), queryEnd.Format("2006-01-02"), protocols)
-		if err != nil {
-			_ = s.repository.Audit(ctx, app.ID, "mileage_range_query", "error", traceID, snapshot.VehicleCount, err.Error())
-			return MileageRangeResponse{}, err
-		}
-		missingVINs := missingMileageRangeInitialVINs(positions, values, rollbacks)
-		if len(missingVINs) > 0 {
-			carried, err = s.repository.LatestMileageBefore(ctx, missingVINs, queryStart.Format("2006-01-02"), protocols)
-			if err != nil {
-				_ = s.repository.Audit(ctx, app.ID, "mileage_range_query", "error", traceID, snapshot.VehicleCount, err.Error())
-				return MileageRangeResponse{}, err
-			}
-			if carried == nil {
-				carried = map[string]DailyMileage{}
-			}
-		}
 	}
 	results := make([]MileageRangeResult, 0, len(positions))
 	for _, position := range positions {
@@ -590,14 +559,8 @@ func (s *Service) QueryMileageRange(ctx context.Context, appKey, traceID string,
 			Date:        position.date,
 			Status:      StatusNoData,
 		}
-		if value, ok := values[dailyMileageKey(position.vehicle.VIN, position.date)]; ok && validDailyMileage(value) {
+		if value, ok := values[dailyMileageKey(position.vehicle.VIN, position.date)]; ok {
 			fillMileageRangeResult(&item, value, value.MileageKm)
-			carried[position.vehicle.VIN] = value
-		} else if rollbacks[dailyMileageKey(position.vehicle.VIN, position.date)] {
-			fillMileageRangeAnomaly(&item)
-			delete(carried, position.vehicle.VIN)
-		} else if value, ok := carried[position.vehicle.VIN]; ok && validDailyMileage(value) {
-			fillMileageRangeResult(&item, value, 0)
 		}
 		results = append(results, item)
 	}
@@ -711,6 +674,12 @@ func (s *Service) authorize(ctx context.Context, rawKey string, plates []string,
 	if len(plates) > 0 && len(vehicles) != len(plates) {
 		return app, nil, ErrForbidden
 	}
+	for _, plate := range plates {
+		vehicle, ok := vehicles[plate]
+		if !ok || strings.TrimSpace(vehicle.VIN) == "" || (vehicle.Plate != "" && vehicle.Plate != plate) {
+			return app, nil, ErrForbidden
+		}
+	}
 	return app, vehicles, nil
 }
 
@@ -991,6 +960,13 @@ func missingMileageRangeInitialVINs(positions []mileageRangePosition, values map
 }
 
 func fillMileageResult(item *MileageResult, value DailyMileage, dailyMileage float64) {
+	if value.DataQuality != "" && value.DataTime == "" {
+		fillMileageAnomaly(item)
+		return
+	}
+	if value.Date == item.Date {
+		item.StatisticsStartTime, item.StatisticsEndTime = validatedStatisticsInterval(value.StatisticsStartTime, value.DataTime)
+	}
 	item.DailyMileageKm = &dailyMileage
 	totalMileage := value.TotalMileageKm
 	item.TotalMileageKm = &totalMileage
@@ -1001,9 +977,20 @@ func fillMileageResult(item *MileageResult, value DailyMileage, dailyMileage flo
 	sourceProtocol := externalMileageProtocol(value.Protocol)
 	item.SourceProtocol = &sourceProtocol
 	item.Status = StatusNormal
+	if value.DataQuality != "" {
+		item.DataQuality = stringPointer(value.DataQuality)
+		if value.DataQuality != "CARRIED_FORWARD" {
+			item.Status = StatusDataAnomaly
+			item.DailyMileageKm = nil
+		}
+	}
 }
 
 func fillMileageRangeResult(item *MileageRangeResult, value DailyMileage, dailyMileage float64) {
+	if value.DataQuality != "" && value.DataTime == "" {
+		fillMileageRangeAnomaly(item)
+		return
+	}
 	item.DailyMileageKm = &dailyMileage
 	totalMileage := value.TotalMileageKm
 	item.TotalMileageKm = &totalMileage
@@ -1014,6 +1001,13 @@ func fillMileageRangeResult(item *MileageRangeResult, value DailyMileage, dailyM
 	sourceProtocol := externalMileageProtocol(value.Protocol)
 	item.SourceProtocol = &sourceProtocol
 	item.Status = StatusNormal
+	if value.DataQuality != "" {
+		item.DataQuality = stringPointer(value.DataQuality)
+		if value.DataQuality != "CARRIED_FORWARD" {
+			item.Status = StatusDataAnomaly
+			item.DailyMileageKm = nil
+		}
+	}
 }
 
 const mileageTotalRollbackQuality = "TOTAL_MILEAGE_ROLLBACK"

vehicle-data-platform/apps/api/internal/openplatform/service_test.go

@@ -47,6 +47,56 @@ func (f *fakeRepository) AuthorizedVehicles(_ context.Context, _ uint64, plates
 	f.requestedPlates = append([]string(nil), plates...)
 	return f.vehicles, nil
 }
+
+// Repository stub retains fixture values; reconciliation itself is tested with
+// actual dated observations in mileage_reconciliation_test.go.
+func (f *fakeRepository) ReconciledMileageRange(ctx context.Context, vins []string, start, end string, protocols []string) (map[string]DailyMileage, error) {
+	f.dailyVINs = append([]string(nil), vins...)
+	f.rangeVINs = append([]string(nil), vins...)
+	f.dailyProtocols = protocols
+	out := map[string]DailyMileage{}
+	carried := map[string]DailyMileage{}
+	var missing []string
+	for _, vin := range vins {
+		v, ok := f.mileage[dailyMileageKey(vin, start)]
+		if !ok {
+			v, ok = f.mileage[vin]
+		}
+		if (!ok || !validDailyMileage(v)) && !f.rollbacks[dailyMileageKey(vin, start)] {
+			missing = append(missing, vin)
+		}
+	}
+	if len(missing) > 0 {
+		prior, _ := f.LatestMileageBefore(ctx, missing, start, protocols)
+		for vin, v := range prior {
+			carried[vin] = v
+		}
+	}
+	first, _ := time.Parse("2006-01-02", start)
+	last, _ := time.Parse("2006-01-02", end)
+	for day := first; !day.After(last); day = day.AddDate(0, 0, 1) {
+		date := day.Format("2006-01-02")
+		for _, vin := range vins {
+			key := dailyMileageKey(vin, date)
+			v, ok := f.mileage[key]
+			if !ok {
+				v, ok = f.mileage[vin]
+			}
+			if ok && validDailyMileage(v) {
+				out[key] = v
+				carried[vin] = v
+			} else if f.rollbacks[key] {
+				out[key] = DailyMileage{DataQuality: mileageTotalRollbackQuality}
+				delete(carried, vin)
+			} else if v, ok = carried[vin]; ok && validDailyMileage(v) {
+				v.MileageKm = 0
+				out[key] = v
+			}
+		}
+	}
+	return out, nil
+}
+
 func (f *fakeRepository) DailyHydrogen(_ context.Context, vins []string, _ string) (map[string]DailyHydrogen, error) {
 	f.dailyVINs = append([]string(nil), vins...)
 	return f.hydrogen, nil
@@ -261,7 +311,7 @@ func TestExternalHydrogenAndMileageQueriesPreserveRequestedVehicles(t *testing.T
 			"粤B67890": {VIN: "LTEST32960VIN0002", Plate: "粤B67890"},
 		},
 		hydrogen: map[string]DailyHydrogen{
-			"LTEST32960VIN0001": {VIN: "LTEST32960VIN0001", ConsumptionKg: 12.3154, SampleCount: 1, QualityStatus: "OK", CalculationPhase: "PRELIMINARY", AlgorithmVersion: trustedHydrogenAlgorithmVersion},
+			"LTEST32960VIN0001": {VIN: "LTEST32960VIN0001", ConsumptionKg: 12.3154, SampleCount: 1, QualityStatus: "OK", CalculationPhase: "PRELIMINARY", AlgorithmVersion: trustedHydrogenAlgorithmVersion, EvidenceJSON: `{"lastEventTime":"2026-07-01T11:59:00+08:00"}`, UpdatedAt: "2026-07-01T12:00:00+08:00"},
 		},
 		mileage: map[string]DailyMileage{
 			"LTEST32960VIN0001": {
@@ -282,6 +332,9 @@ func TestExternalHydrogenAndMileageQueriesPreserveRequestedVehicles(t *testing.T
 	if len(hydrogen) != 2 || hydrogen[0].HydrogenConsumptionKg == nil || *hydrogen[0].HydrogenConsumptionKg != 12.315 || hydrogen[1].Status != StatusNoData || hydrogen[1].HydrogenConsumptionKg != nil {
 		t.Fatalf("hydrogen = %#v", hydrogen)
 	}
+	if hydrogen[0].VIN != "LTEST32960VIN0001" || hydrogen[1].VIN != "LTEST32960VIN0002" || hydrogen[0].StatisticsStartTime != nil || hydrogen[0].StatisticsEndTime == nil || *hydrogen[0].StatisticsEndTime != "2026-07-01T11:59:00+08:00" || hydrogen[0].UpdatedAt == nil || hydrogen[1].UpdatedAt != nil {
+		t.Fatalf("hydrogen identity/timestamps = %#v", hydrogen)
+	}
 	if hydrogen[0].CalculationPhase != "PRELIMINARY" || hydrogen[0].AlgorithmVersion != trustedHydrogenAlgorithmVersion {
 		t.Fatalf("hydrogen calculation metadata = %#v", hydrogen[0])
 	}

vehicle-data-platform/apps/api/internal/platform/alert.go

@@ -413,6 +413,9 @@ func (s *Service) ActOnAlert(ctx context.Context, id string, request AlertAction
 
 func normalizeVehicleEvent(event AlertEvent) AlertEvent {
 	event.EventCategory, event.EventType = canonicalVehicleEvent(event.TriggerType, event.Metric, event.Operator)
+	if event.RuleID == nativeAlarmRuleID {
+		event.EventCategory, event.EventType = "safety", "vehicle.safety.gb32960_alarm"
+	}
 	switch strings.ToLower(strings.TrimSpace(event.Status)) {
 	case "processing":
 		event.ExecutionState = "processing"

vehicle-data-platform/apps/api/internal/platform/alert_store.go

@@ -169,6 +169,20 @@ func (s *ProductionStore) AlertEvent(ctx context.Context, id string) (AlertEvent
 	if err != nil {
 		return AlertEvent{}, err
 	}
+	if event.RuleID == nativeAlarmRuleID {
+		var payload []byte
+		if err := s.db.QueryRowContext(ctx, `SELECT fields_json FROM vehicle_native_alarm_evidence WHERE event_id=?`, id).Scan(&payload); err != nil {
+			return AlertEvent{}, err
+		}
+		if err := json.Unmarshal(payload, &event.NativeAlarmFields); err != nil {
+			return AlertEvent{}, err
+		}
+		if description, valid := DescribeNativeAlarm(event.NativeAlarmFields); valid {
+			event.RuleName = description.Title
+			event.NativeAlarmNames = description.Names
+			event.NativeAlarmReservedBits = description.ReservedBits
+		}
+	}
 	rows, err := s.db.QueryContext(ctx, alertActionSelect, id)
 	if err != nil {
 		return AlertEvent{}, err

vehicle-data-platform/apps/api/internal/platform/alert_stream_evaluator.go

@@ -22,6 +22,9 @@ func evaluateAlertStreamRecordsTx(ctx context.Context, tx *sql.Tx, records []Ale
 	if err != nil {
 		return result, err
 	}
+	if err := recordNativeAlarmsTx(ctx, tx, records, &result); err != nil {
+		return result, err
+	}
 	if len(rules) == 0 {
 		return result, nil
 	}

vehicle-data-platform/apps/api/internal/platform/corrected_hydrogen_test.go

@@ -0,0 +1,51 @@
+package platform
+
+import (
+	"context"
+	"net/url"
+	"testing"
+)
+
+func TestCorrectedDailyHydrogenRate(t *testing.T) {
+	physical, corrected, mixed, zero := 10.0, 12.0, 200.0, 0.0
+	row := DailyMileageRow{HydrogenConsumptionKg: &physical, HydrogenSOCBalancedKg: &corrected, PureHydrogenMileageKm: 100, MixedMileageKm: &mixed}
+	if got := correctedDailyHydrogenRate(row); got == nil || *got != 6 {
+		t.Fatalf("rate must use corrected mass and matching mileage: %v", got)
+	}
+	row.MixedMileageKm = nil
+	if got := correctedDailyHydrogenRate(row); got == nil || *got != 12 {
+		t.Fatalf("fallback mileage: %v", got)
+	}
+	row.HydrogenSOCBalancedKg = nil
+	if got := correctedDailyHydrogenRate(row); got != nil {
+		t.Fatalf("missing correction must not use physical mass: %v", *got)
+	}
+	row.HydrogenSOCBalancedKg = &zero
+	if got := correctedDailyHydrogenRate(row); got == nil || *got != 0 {
+		t.Fatalf("real zero must survive: %v", got)
+	}
+	row.PureHydrogenMileageKm = 0
+	if got := correctedDailyHydrogenRate(row); got != nil {
+		t.Fatalf("zero mileage must have no rate: %v", *got)
+	}
+}
+
+type distinctHydrogenStore struct{ *MockStore }
+
+func (s *distinctHydrogenStore) DailyMileage(context.Context, url.Values) (Page[DailyMileageRow], error) {
+	physical, corrected, distance := 12.813, 8.714, 77.0
+	return Page[DailyMileageRow]{Items: []DailyMileageRow{{VIN: "LA9GG64L1NBAF4167", Date: "2026-09-01", HydrogenConsumptionKg: &physical, HydrogenSOCBalancedKg: &corrected, MixedMileageKm: &distance}}}, nil
+}
+func TestDailyMileageHistoricalPublicFieldsUseCorrection(t *testing.T) {
+	result, err := NewService(&distinctHydrogenStore{NewMockStore()}).DailyMileage(context.Background(), url.Values{"dateFrom": {"2026-09-01"}, "dateTo": {"2026-09-01"}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	row := result.Items[0]
+	if row.HydrogenConsumptionKg == nil || *row.HydrogenConsumptionKg != 8.714 || row.HydrogenPhysicalConsumptionKg == nil || *row.HydrogenPhysicalConsumptionKg != 12.813 {
+		t.Fatalf("historical primary amount must be corrected, with physical amount separately available: %+v", row)
+	}
+	if row.HydrogenConsumptionKgPer100Km == nil || *row.HydrogenConsumptionKgPer100Km != 8.714*100/77 {
+		t.Fatalf("historical rate mismatch: %+v", row)
+	}
+}

vehicle-data-platform/apps/api/internal/platform/daily_mileage_pagination_test.go

@@ -0,0 +1,48 @@
+package platform
+
+import (
+	"net/url"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+func TestDailyMileageEnrichesOnlyTheSelectedPage(t *testing.T) {
+	for _, dedup := range []string{"0", "1"} {
+		q := url.Values{"deduplicate": {dedup}, "limit": {"7"}, "offset": {"21"}, "scopeVins": {"VIN1,VIN2"}, "dateFrom": {"2026-08-01"}, "dateTo": {"2026-08-31"}, "protocols": {"JT808,GB32960"}}
+		got := buildDailyMileageSQL(q)
+		pageEnd := strings.Index(got.Text, "LIMIT ? OFFSET ?)")
+		energy := strings.Index(got.Text, "LEFT JOIN vehicle_open_daily_energy")
+		binding := strings.Index(got.Text, "LEFT JOIN vehicle_identity_binding")
+		if pageEnd < 0 || energy < pageEnd || binding < pageEnd {
+			t.Fatalf("enrichment precedes page: %s", got.Text)
+		}
+		if strings.Contains(got.CountText, "JOIN") || strings.Contains(got.CountText, "LIMIT") {
+			t.Fatalf("unneeded joins or pagination in total: %s", got.CountText)
+		}
+		if !reflect.DeepEqual(got.CountArgs, got.Args[:len(got.Args)-2]) || got.Args[len(got.Args)-2] != 7 || got.Args[len(got.Args)-1] != 21 {
+			t.Fatalf("args data=%#v count=%#v", got.Args, got.CountArgs)
+		}
+		for _, predicate := range []string{"m.vin IN (?,?)", "m.protocol IN (?,?)", "m.stat_date >= ?", "m.stat_date <= ?"} {
+			if !strings.Contains(got.Text, predicate) || !strings.Contains(got.CountText, predicate) {
+				t.Fatalf("lost %s", predicate)
+			}
+		}
+	}
+}
+
+func TestDailyMileageCountKeepsBindingOnlyForBindingPredicates(t *testing.T) {
+	for _, q := range []url.Values{{"vin": {"fleet"}}, {"vehicleScope": {"bound"}}, {"vin": {"fleet"}, "deduplicate": {"1"}}, {"vehicleScope": {"bound"}, "deduplicate": {"1"}}} {
+		got := buildDailyMileageSQL(q)
+		if !strings.Contains(got.CountText, "vehicle_identity_binding b") || strings.Contains(got.CountText, "vehicle_open_daily_energy") {
+			t.Fatal(got.CountText)
+		}
+		if strings.Index(got.Text, "vehicle_identity_binding b") > strings.Index(got.Text, "LIMIT ? OFFSET ?)") {
+			t.Fatal("binding filter applied after pagination")
+		}
+	}
+	got := buildDailyMileageSQL(url.Values{})
+	if len(got.CountArgs) != 0 || strings.Contains(got.CountText, "stat_date >=") || strings.Contains(got.CountText, "stat_date <=") {
+		t.Fatal("unfiltered history total changed")
+	}
+}

vehicle-data-platform/apps/api/internal/platform/hydrogen_evidence_test.go

@@ -34,6 +34,9 @@ func TestProductionStoreHydrogenDailyEvidenceReturnsParametersIntervalsAndRawEve
 	if result.Parameters.BatteryCapacityKWh != 21.04 || result.RefuelAmountKg == nil || *result.RefuelAmountKg != 8.976 || result.ChargeEnergyKWh == nil || *result.ChargeEnergyKWh != 12.5 || len(result.Intervals) != 1 || result.Intervals[0].StartEventID != "event-start" || result.Intervals[0].EndEventID != "event-end" {
 		t.Fatalf("result=%#v", result)
 	}
+	if result.ConsumptionKgPer100Km == nil || *result.ConsumptionKgPer100Km != 5.562 || result.PhysicalConsumptionKgPer100Km == nil || *result.PhysicalConsumptionKgPer100Km != 5.516 {
+		t.Fatalf("evidence must expose corrected rate separately from physical rate: %+v", result)
+	}
 	if err := mock.ExpectationsWereMet(); err != nil {
 		t.Fatal(err)
 	}

vehicle-data-platform/apps/api/internal/platform/model.go

@@ -1,6 +1,9 @@
 package platform
 
-import "time"
+import (
+	"encoding/json"
+	"time"
+)
 
 type Page[T any] struct {
 	Items  []T `json:"items"`
@@ -1000,37 +1003,40 @@ type AlertRuleLifecycleRequest struct {
 }
 
 type AlertEvent struct {
-	ID             string        `json:"id"`
+	NativeAlarmNames        []string                   `json:"nativeAlarmNames,omitempty"`
-	EventType      string        `json:"eventType"`
+	NativeAlarmReservedBits []int                      `json:"nativeAlarmReservedBits,omitempty"`
-	EventCategory  string        `json:"eventCategory"`
+	NativeAlarmFields       map[string]json.RawMessage `json:"nativeAlarmFields,omitempty"`
-	ExecutionState string        `json:"executionState"`
+	ID                      string                     `json:"id"`
-	RuleID         string        `json:"ruleId"`
+	EventType               string                     `json:"eventType"`
-	RuleName       string        `json:"ruleName"`
+	EventCategory           string                     `json:"eventCategory"`
-	RuleVersion    int           `json:"ruleVersion"`
+	ExecutionState          string                     `json:"executionState"`
-	Severity       string        `json:"severity"`
+	RuleID                  string                     `json:"ruleId"`
-	TriggerType    string        `json:"triggerType"`
+	RuleName                string                     `json:"ruleName"`
-	Status         string        `json:"status"`
+	RuleVersion             int                        `json:"ruleVersion"`
-	VIN            string        `json:"vin"`
+	Severity                string                     `json:"severity"`
-	Plate          string        `json:"plate"`
+	TriggerType             string                     `json:"triggerType"`
-	Protocol       string        `json:"protocol"`
+	Status                  string                     `json:"status"`
-	Metric         string        `json:"metric"`
+	VIN                     string                     `json:"vin"`
-	Operator       string        `json:"operator"`
+	Plate                   string                     `json:"plate"`
-	TriggerValue   float64       `json:"triggerValue"`
+	Protocol                string                     `json:"protocol"`
-	Threshold      float64       `json:"threshold"`
+	Metric                  string                     `json:"metric"`
-	ThresholdHigh  float64       `json:"thresholdHigh"`
+	Operator                string                     `json:"operator"`
-	Unit           string        `json:"unit"`
+	TriggerValue            float64                    `json:"triggerValue"`
-	DurationSec    int           `json:"durationSec"`
+	Threshold               float64                    `json:"threshold"`
-	Location       string        `json:"location"`
+	ThresholdHigh           float64                    `json:"thresholdHigh"`
-	Longitude      *float64      `json:"longitude,omitempty"`
+	Unit                    string                     `json:"unit"`
-	Latitude       *float64      `json:"latitude,omitempty"`
+	DurationSec             int                        `json:"durationSec"`
-	SourceEventID  string        `json:"sourceEventId"`
+	Location                string                     `json:"location"`
-	EventAt        string        `json:"eventAt"`
+	Longitude               *float64                   `json:"longitude,omitempty"`
-	ReceivedAt     string        `json:"receivedAt"`
+	Latitude                *float64                   `json:"latitude,omitempty"`
-	TriggeredAt    string        `json:"triggeredAt"`
+	SourceEventID           string                     `json:"sourceEventId"`
-	RecoveredAt    string        `json:"recoveredAt"`
+	EventAt                 string                     `json:"eventAt"`
-	Handler        string        `json:"handler"`
+	ReceivedAt              string                     `json:"receivedAt"`
-	Version        int           `json:"version"`
+	TriggeredAt             string                     `json:"triggeredAt"`
-	Actions        []AlertAction `json:"actions,omitempty"`
+	RecoveredAt             string                     `json:"recoveredAt"`
+	Handler                 string                     `json:"handler"`
+	Version                 int                        `json:"version"`
+	Actions                 []AlertAction              `json:"actions,omitempty"`
 }
 
 type AlertAction struct {
@@ -1874,6 +1880,12 @@ type LatestTelemetryResponse struct {
 }
 
 type DailyMileageRow struct {
+	Province                      string   `json:"province,omitempty"`
+	City                          string   `json:"city,omitempty"`
+	Region                        string   `json:"region,omitempty"`
+	LocationTime                  string   `json:"locationTime,omitempty"`
+	LocationStatus                string   `json:"locationStatus"`
+	HydrogenPhysicalConsumptionKg *float64 `json:"hydrogenPhysicalConsumptionKg,omitempty"`
 	VIN                           string   `json:"vin"`
 	Plate                         string   `json:"plate"`
 	Date                          string   `json:"date"`
@@ -1942,32 +1954,33 @@ type HydrogenIntervalEvidenceRow struct {
 }
 
 type HydrogenDailyEvidence struct {
-	VIN                      string                               `json:"vin"`
+	PhysicalConsumptionKgPer100Km *float64                             `json:"physicalConsumptionKgPer100Km,omitempty"`
-	Plate                    string                               `json:"plate"`
+	VIN                           string                               `json:"vin"`
-	Date                     string                               `json:"date"`
+	Plate                         string                               `json:"plate"`
-	Source                   string                               `json:"source"`
+	Date                          string                               `json:"date"`
-	RawConsumptionKg         float64                              `json:"rawConsumptionKg"`
+	Source                        string                               `json:"source"`
-	BatterySOCDeltaPct       *float64                             `json:"batterySocDeltaPct,omitempty"`
+	RawConsumptionKg              float64                              `json:"rawConsumptionKg"`
-	BatteryDischargeKWh      *float64                             `json:"batteryDischargeKWh,omitempty"`
+	BatterySOCDeltaPct            *float64                             `json:"batterySocDeltaPct,omitempty"`
-	BatteryEquivalentKg      *float64                             `json:"batteryEquivalentKg,omitempty"`
+	BatteryDischargeKWh           *float64                             `json:"batteryDischargeKWh,omitempty"`
-	SOCBalancedConsumptionKg *float64                             `json:"socBalancedConsumptionKg,omitempty"`
+	BatteryEquivalentKg           *float64                             `json:"batteryEquivalentKg,omitempty"`
-	MixedMileageKm           float64                              `json:"mixedMileageKm"`
+	SOCBalancedConsumptionKg      *float64                             `json:"socBalancedConsumptionKg,omitempty"`
-	PureElectricMileageKm    float64                              `json:"pureElectricMileageKm"`
+	MixedMileageKm                float64                              `json:"mixedMileageKm"`
-	ConsumptionKgPer100Km    *float64                             `json:"consumptionKgPer100Km,omitempty"`
+	PureElectricMileageKm         float64                              `json:"pureElectricMileageKm"`
-	SOCBalancedKgPer100Km    *float64                             `json:"socBalancedKgPer100Km,omitempty"`
+	ConsumptionKgPer100Km         *float64                             `json:"consumptionKgPer100Km,omitempty"`
-	SampleCount              int                                  `json:"sampleCount"`
+	SOCBalancedKgPer100Km         *float64                             `json:"socBalancedKgPer100Km,omitempty"`
-	RefuelCount              int                                  `json:"refuelCount"`
+	SampleCount                   int                                  `json:"sampleCount"`
-	RefuelAmountKg           *float64                             `json:"refuelAmountKg,omitempty"`
+	RefuelCount                   int                                  `json:"refuelCount"`
-	ChargeCount              int                                  `json:"chargeCount"`
+	RefuelAmountKg                *float64                             `json:"refuelAmountKg,omitempty"`
-	ChargeEnergyKWh          *float64                             `json:"chargeEnergyKWh,omitempty"`
+	ChargeCount                   int                                  `json:"chargeCount"`
-	ValidSegmentCount        int                                  `json:"validSegmentCount"`
+	ChargeEnergyKWh               *float64                             `json:"chargeEnergyKWh,omitempty"`
-	InvalidSegmentCount      int                                  `json:"invalidSegmentCount"`
+	ValidSegmentCount             int                                  `json:"validSegmentCount"`
-	QualityStatus            string                               `json:"qualityStatus"`
+	InvalidSegmentCount           int                                  `json:"invalidSegmentCount"`
-	QualityReason            string                               `json:"qualityReason"`
+	QualityStatus                 string                               `json:"qualityStatus"`
-	AlgorithmVersion         string                               `json:"algorithmVersion"`
+	QualityReason                 string                               `json:"qualityReason"`
-	Parameters               HydrogenCalculationParameterEvidence `json:"parameters"`
+	AlgorithmVersion              string                               `json:"algorithmVersion"`
-	Intervals                []HydrogenIntervalEvidenceRow        `json:"intervals"`
+	Parameters                    HydrogenCalculationParameterEvidence `json:"parameters"`
-	CalculatedAt             string                               `json:"calculatedAt"`
+	Intervals                     []HydrogenIntervalEvidenceRow        `json:"intervals"`
+	CalculatedAt                  string                               `json:"calculatedAt"`
 }
 
 // MileageQuery is the POST contract used by mileage statistics and daily

vehicle-data-platform/apps/api/internal/platform/monitor_activity.go

@@ -0,0 +1,18 @@
+package platform
+
+import (
+	"context"
+	"time"
+)
+
+// MonitorActivitySummary reads only the two global counters used by the monitor.
+// A viewport refresh must not run the operations dashboard's health probes.
+func (s *ProductionStore) MonitorActivitySummary(ctx context.Context) (DashboardSummary, error) {
+	var result DashboardSummary
+	if err := s.db.QueryRowContext(ctx, `SELECT COUNT(DISTINCT vin) FROM vehicle_realtime_snapshot WHERE vin IS NOT NULL AND vin <> '' AND updated_at >= CURDATE()`).Scan(&result.ActiveToday); err != nil {
+		return result, err
+	}
+	frames, err := s.frameToday(ctx, time.Now())
+	result.FrameToday = frames
+	return result, err
+}

vehicle-data-platform/apps/api/internal/platform/monitor_activity_test.go

@@ -0,0 +1,33 @@
+package platform
+
+import (
+	"context"
+	"net/url"
+	"testing"
+)
+
+type monitorActivityTestStore struct {
+	*MockStore
+	activityCalls int
+}
+
+func (s *monitorActivityTestStore) MonitorActivitySummary(context.Context) (DashboardSummary, error) {
+	s.activityCalls++
+	return DashboardSummary{ActiveToday: 17, FrameToday: 123456}, nil
+}
+func (s *monitorActivityTestStore) DashboardSummary(context.Context) (DashboardSummary, error) {
+	panic("monitor must not run full dashboard and health probes")
+}
+func TestMonitorWorkspaceUsesOnlyRequiredActivityCounters(t *testing.T) {
+	store := &monitorActivityTestStore{MockStore: NewMockStore()}
+	got, err := NewService(store).MonitorWorkspace(context.Background(), url.Values{"limit": {"10000"}, "zoom": {"5"}, "railLimit": {"200"}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if store.activityCalls != 1 || got.Summary.ActiveToday != 17 || got.Summary.FrameToday != 123456 {
+		t.Fatalf("calls=%d summary=%+v", store.activityCalls, got.Summary)
+	}
+	if got.Summary.TotalVehicles == 0 || len(got.Vehicles.Items) == 0 {
+		t.Fatal("lost fleet data")
+	}
+}

vehicle-data-platform/apps/api/internal/platform/mysql_queries.go

@@ -554,13 +554,20 @@ func buildDailyMileageSQL(query url.Values) SQLQuery {
 	}
 	countArgs := append([]any(nil), args...)
 	args = append(args, limit, offset)
-	fromSQL := `FROM vehicle_daily_mileage m
+	// Both joins are one-to-one. Binding is needed during filtering only for
-LEFT JOIN vehicle_identity_binding b ON b.vin = m.vin
+	// keyword/bound scope; energy never affects which mileage rows qualify.
+	filterFromSQL := `FROM vehicle_daily_mileage m`
+	if strings.EqualFold(strings.TrimSpace(query.Get("vehicleScope")), "bound") || strings.TrimSpace(query.Get("vin")) != "" {
+		filterFromSQL += ` LEFT JOIN vehicle_identity_binding b ON b.vin = m.vin`
+	}
+	filterFromSQL += ` WHERE ` + strings.Join(where, " AND ")
+	enrichmentSQL := ` LEFT JOIN vehicle_identity_binding b ON b.vin = m.vin
 LEFT JOIN vehicle_open_daily_energy h
   ON h.vin COLLATE utf8mb4_unicode_ci = m.vin COLLATE utf8mb4_unicode_ci
  AND h.stat_date = m.stat_date
  AND h.energy_type = 'HYDROGEN' AND h.quality_status IN ('OK','SUSPECT')
-WHERE ` + strings.Join(where, " AND ")
+LEFT JOIN vehicle_daily_geography g ON g.vin = m.vin COLLATE utf8mb4_unicode_ci AND g.stat_date = m.stat_date`
+
 	if query.Get("deduplicate") == "1" || strings.EqualFold(query.Get("deduplicate"), "true") {
 		selectionOrder := `m.daily_mileage_km DESC, m.protocol ASC`
 		dailyMileageExpression := `MAX(COALESCE(m.daily_mileage_km, 0))`
@@ -570,30 +577,26 @@ WHERE ` + strings.Join(where, " AND ")
 			dailyMileageExpression = `COALESCE(CAST(SUBSTRING_INDEX(GROUP_CONCAT(CAST(COALESCE(m.daily_mileage_km, 0) AS CHAR) ORDER BY ` + selectionOrder + `), ',', 1) AS DECIMAL(18,3)), 0)`
 			pureHydrogenMileageExpression = `COALESCE(CAST(SUBSTRING_INDEX(GROUP_CONCAT(CAST(COALESCE(m.pure_hydrogen_mileage_km, 0) AS CHAR) ORDER BY ` + selectionOrder + `), ',', 1) AS DECIMAL(18,3)), 0)`
 		}
-		groupSQL := fromSQL + ` GROUP BY m.vin, m.stat_date`
+		groupSQL := filterFromSQL + ` GROUP BY m.vin, m.stat_date`
+		// LIMIT materializes the grouped page before enrichment. Keep the exact
+		// original aggregate/priority rules, including independent maxima when no
+		// enabled protocol priority was supplied.
+		pageSQL := `SELECT m.vin, m.stat_date, ` +
+			`COALESCE(CAST(SUBSTRING_INDEX(GROUP_CONCAT(CAST(m.latest_total_mileage_km - m.daily_mileage_km AS CHAR) ORDER BY ` + selectionOrder + `), ',', 1) AS DECIMAL(18,3)), 0) AS start_mileage_km, ` +
+			`COALESCE(CAST(SUBSTRING_INDEX(GROUP_CONCAT(CAST(m.latest_total_mileage_km AS CHAR) ORDER BY ` + selectionOrder + `), ',', 1) AS DECIMAL(18,3)), 0) AS end_mileage_km, ` +
+			dailyMileageExpression + ` AS daily_mileage_km, ` + pureHydrogenMileageExpression + ` AS pure_hydrogen_mileage_km, ` +
+			`COALESCE(SUBSTRING_INDEX(GROUP_CONCAT(m.protocol ORDER BY ` + selectionOrder + `), ',', 1), '') AS protocol ` +
+			groupSQL + ` ORDER BY m.stat_date DESC, m.vin ASC LIMIT ? OFFSET ?`
 		built := SQLQuery{
-			Text: `SELECT m.vin, COALESCE(MAX(NULLIF(b.plate, '')), '') AS plate, DATE_FORMAT(m.stat_date, '%Y-%m-%d') AS stat_date, ` +
+			Text: `SELECT m.vin, COALESCE(NULLIF(b.plate, ''), '') AS plate, DATE_FORMAT(m.stat_date, '%Y-%m-%d') AS stat_date, ` +
-				`COALESCE(CAST(SUBSTRING_INDEX(GROUP_CONCAT(CAST(m.latest_total_mileage_km - m.daily_mileage_km AS CHAR) ORDER BY ` + selectionOrder + `), ',', 1) AS DECIMAL(18,3)), 0) AS start_mileage_km, ` +
+				`m.start_mileage_km, m.end_mileage_km, m.daily_mileage_km, m.pure_hydrogen_mileage_km, ` +
-				`COALESCE(CAST(SUBSTRING_INDEX(GROUP_CONCAT(CAST(m.latest_total_mileage_km AS CHAR) ORDER BY ` + selectionOrder + `), ',', 1) AS DECIMAL(18,3)), 0) AS end_mileage_km, ` +
+				`h.consumption_kg AS hydrogen_consumption_kg, h.consumption_kg_per_100km AS hydrogen_consumption_kg_per_100km, ` +
-				dailyMileageExpression + ` AS daily_mileage_km, ` +
+				`h.soc_balanced_consumption_kg AS hydrogen_soc_balanced_kg, h.soc_balanced_kg_per_100km AS hydrogen_soc_balanced_kg_per_100km, ` +
-				pureHydrogenMileageExpression + ` AS pure_hydrogen_mileage_km, ` +
+				`h.pure_electric_mileage_km, h.mixed_mileage_km, h.battery_soc_delta_pct, h.charge_count, h.charge_energy_kwh, h.refuel_count, h.refuel_amount_kg, ` +
-				`MAX(h.consumption_kg) AS hydrogen_consumption_kg, ` +
+				`CASE WHEN h.evidence_json IS NOT NULL THEN 1 ELSE 0 END AS hydrogen_evidence_available, ` +
-				`MAX(h.consumption_kg_per_100km) AS hydrogen_consumption_kg_per_100km, ` +
+				`COALESCE(h.quality_status, '') AS hydrogen_quality_status, COALESCE(h.quality_reason, '') AS hydrogen_quality_reason, ` +
-				`MAX(h.soc_balanced_consumption_kg) AS hydrogen_soc_balanced_kg, ` +
+				`COALESCE(h.algorithm_version, '') AS hydrogen_algorithm_version, m.protocol, ` + dailyGeographyProjectionSQL + ` ` +
-				`MAX(h.soc_balanced_kg_per_100km) AS hydrogen_soc_balanced_kg_per_100km, ` +
+				`FROM (` + pageSQL + `) m` + enrichmentSQL + ` ORDER BY m.stat_date DESC, m.vin ASC`,
-				`MAX(h.pure_electric_mileage_km) AS pure_electric_mileage_km, ` +
-				`MAX(h.mixed_mileage_km) AS mixed_mileage_km, ` +
-				`MAX(h.battery_soc_delta_pct) AS battery_soc_delta_pct, ` +
-				`MAX(h.charge_count) AS charge_count, ` +
-				`MAX(h.charge_energy_kwh) AS charge_energy_kwh, ` +
-				`MAX(h.refuel_count) AS refuel_count, ` +
-				`MAX(h.refuel_amount_kg) AS refuel_amount_kg, ` +
-				`MAX(CASE WHEN h.evidence_json IS NOT NULL THEN 1 ELSE 0 END) AS hydrogen_evidence_available, ` +
-				`COALESCE(MAX(h.quality_status), '') AS hydrogen_quality_status, ` +
-				`COALESCE(MAX(h.quality_reason), '') AS hydrogen_quality_reason, ` +
-				`COALESCE(MAX(h.algorithm_version), '') AS hydrogen_algorithm_version, ` +
-				`COALESCE(SUBSTRING_INDEX(GROUP_CONCAT(m.protocol ORDER BY ` + selectionOrder + `), ',', 1), '') AS protocol ` +
-				groupSQL + ` ORDER BY m.stat_date DESC, m.vin ASC LIMIT ? OFFSET ?`,
 			Args:      args,
 			CountText: `SELECT COUNT(*) FROM (SELECT m.vin ` + groupSQL + `) vehicle_daily_mileage_count`,
 			CountArgs: countArgs,
@@ -611,10 +614,10 @@ WHERE ` + strings.Join(where, " AND ")
 			`COALESCE(m.pure_hydrogen_mileage_km, 0), h.consumption_kg, h.consumption_kg_per_100km, h.soc_balanced_consumption_kg, ` +
 			`h.soc_balanced_kg_per_100km, h.pure_electric_mileage_km, h.mixed_mileage_km, h.battery_soc_delta_pct, ` +
 			`h.charge_count, h.charge_energy_kwh, h.refuel_count, h.refuel_amount_kg, CASE WHEN h.evidence_json IS NOT NULL THEN 1 ELSE 0 END, ` +
-			`COALESCE(h.quality_status, ''), COALESCE(h.quality_reason, ''), COALESCE(h.algorithm_version, ''), m.protocol ` +
+			`COALESCE(h.quality_status, ''), COALESCE(h.quality_reason, ''), COALESCE(h.algorithm_version, ''), m.protocol, ` + dailyGeographyProjectionSQL + ` ` +
-			fromSQL + ` ORDER BY m.stat_date DESC, m.vin ASC, m.protocol ASC LIMIT ? OFFSET ?`,
+			`FROM (SELECT m.* ` + filterFromSQL + ` ORDER BY m.stat_date DESC, m.vin ASC, m.protocol ASC LIMIT ? OFFSET ?) m` + enrichmentSQL + ` ORDER BY m.stat_date DESC, m.vin ASC, m.protocol ASC`,
 		Args:      args,
-		CountText: `SELECT COUNT(*) ` + fromSQL,
+		CountText: `SELECT COUNT(*) ` + filterFromSQL,
 		CountArgs: countArgs,
 	}
 	if query.Get("skipCount") == "1" || strings.EqualFold(query.Get("skipCount"), "true") {
@@ -708,7 +711,7 @@ func buildMileageStatisticsBaseSQL(query url.Values) (string, []any) {
 		dailyMileageExpression + ` AS daily_mileage_km, ` +
 		pureHydrogenMileageExpression + ` AS pure_hydrogen_mileage_km, ` +
 		`CASE WHEN MAX(COALESCE(h.mixed_mileage_km,0))>0 THEN MAX(h.mixed_mileage_km) ELSE ` + pureHydrogenMileageExpression + ` END AS hydrogen_matched_mileage_km, ` +
-		`MAX(h.consumption_kg) AS hydrogen_consumption_kg, ` +
+		`MAX(h.soc_balanced_consumption_kg) AS hydrogen_consumption_kg, ` +
 		latestMileageExpression + ` AS latest_mileage_km ` +
 		`FROM vehicle_daily_mileage m
 LEFT JOIN vehicle_identity_binding b ON b.vin = m.vin
@@ -915,3 +918,5 @@ func mustInt(value string) int {
 	n, _ := strconv.Atoi(value)
 	return n
 }
+
+const dailyGeographyProjectionSQL = `COALESCE(g.province,''),COALESCE(g.city,''),COALESCE(g.region,''),COALESCE(DATE_FORMAT(g.location_time,'%Y-%m-%dT%H:%i:%s.%f+08:00'),''),CASE COALESCE(g.status,'PENDING') WHEN 'RESOLVED' THEN '已解析' WHEN 'NO_LOCATION' THEN '当天无有效定位' WHEN 'ERROR' THEN '解析失败，后台重试中' ELSE '后台待解析' END`

vehicle-data-platform/apps/api/internal/platform/native_alarm.go

@@ -0,0 +1,142 @@
+package platform
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"math"
+	"time"
+)
+
+const nativeAlarmRuleID = "native-gb32960-alarm"
+
+// Require the complete 0x07 unit: absent/invalid data must never clear an alarm.
+func nativeAlarmFields(record AlertStreamRecord) (map[string]json.RawMessage, int, bool, bool) {
+	if record.Protocol != "GB32960" {
+		return nil, 0, false, false
+	}
+	fields := make(map[string]json.RawMessage, 6)
+	level, levelOK := alertStreamRawNumber(record.Fields["gb32960.alarm.max_alarm_level"])
+	flag, flagOK := alertStreamRawNumber(record.Fields["gb32960.alarm.general_alarm_flag"])
+	if !levelOK || !flagOK || level < 0 || level > 3 || math.Trunc(level) != level || flag < 0 || flag > math.MaxUint32 || math.Trunc(flag) != flag {
+		return nil, 0, false, false
+	}
+	mask := nativeAlarm2016Mask
+	if nativeAlarmVersion(record.Fields) == "V2025" {
+		mask = math.MaxUint32
+	}
+	active := level > 0 || uint32(flag)&mask != 0
+	if version := record.Fields["gb32960.header.version"]; len(version) > 0 {
+		fields["gb32960.header.version"] = version
+	}
+	for _, name := range []string{"max_alarm_level", "general_alarm_flag", "battery_faults", "motor_faults", "engine_faults", "other_faults"} {
+		key := "gb32960.alarm." + name
+		raw := record.Fields[key]
+		if name != "max_alarm_level" && name != "general_alarm_flag" {
+			// The gateway's FIELDS contract serializes complex KV values as JSON strings.
+			var encoded string
+			if json.Unmarshal(raw, &encoded) == nil {
+				raw = json.RawMessage(encoded)
+			}
+			var codes []string
+			if len(raw) == 0 || string(raw) == "null" || json.Unmarshal(raw, &codes) != nil || codes == nil {
+				return nil, 0, false, false
+			}
+			active = active || len(codes) > 0
+		}
+		fields[key] = raw
+	}
+	return fields, int(level), active, true
+}
+
+// Runs in the same transaction as the Kafka checkpoint, independently of rules.
+func recordNativeAlarmsTx(ctx context.Context, tx *sql.Tx, records []AlertStreamRecord, result *AlertEvaluationResult) error {
+	eligible := make([]AlertStreamRecord, 0)
+	for _, record := range records {
+		if _, _, _, ok := nativeAlarmFields(record); ok && !record.Late {
+			eligible = append(eligible, record)
+		}
+	}
+	if len(eligible) == 0 {
+		return nil
+	}
+	metadata, err := loadAlertStreamVehicleMetadata(ctx, tx, eligible)
+	if err != nil {
+		return err
+	}
+	for _, record := range eligible {
+		fields, level, active, _ := nativeAlarmFields(record)
+		// Serialize concurrent consumers for this VIN, including the first observation.
+		if _, err = tx.ExecContext(ctx, `INSERT IGNORE INTO vehicle_native_alarm_state(vin,last_event_at) VALUES(?,'1970-01-01 00:00:00')`, record.VIN); err != nil {
+			return err
+		}
+		var lastAt time.Time
+		var eventID string
+		if err = tx.QueryRowContext(ctx, `SELECT last_event_at,active_event_id FROM vehicle_native_alarm_state WHERE vin=? FOR UPDATE`, record.VIN).Scan(&lastAt, &eventID); err != nil {
+			return err
+		}
+		if !record.EventAt.After(lastAt) {
+			result.LateObservations++
+			continue
+		}
+		if active && eventID == "" {
+			eventID, err = newAlertID("alert")
+			if err != nil {
+				return err
+			}
+			severity := "minor"
+			if level == 2 {
+				severity = "major"
+			}
+			if level == 3 {
+				severity = "critical"
+			}
+			description, _ := DescribeNativeAlarm(fields)
+			title := description.Title
+			rule := AlertRule{ID: nativeAlarmRuleID, Name: title, Severity: severity, TriggerType: "metric", Metric: "alarm_active", Operator: "eq", Threshold: 1}
+			item := alertStreamEvidence(record, metadata[record.VIN], nil)
+			shanghai := time.FixedZone("Asia/Shanghai", 8*60*60)
+			item.EventAt = record.EventAt.In(shanghai).Format("2006-01-02 15:04:05.999")
+			item.ReceivedAt = record.ReceivedAt.In(shanghai).Format("2006-01-02 15:04:05.999")
+			query, args := buildAlertEventInsert(eventID, nativeAlarmRuleID+"|"+record.VIN+"|GB32960", rule, item, 1)
+			// Missing coordinates must not appear as a real position at (0,0).
+			if !item.HasLocation {
+				args[17], args[18], args[19] = "", nil, nil
+			}
+			if _, err = tx.ExecContext(ctx, query, args...); err != nil {
+				return err
+			}
+			payload, marshalErr := json.Marshal(fields)
+			if marshalErr != nil {
+				return marshalErr
+			}
+			if _, err = tx.ExecContext(ctx, `INSERT INTO vehicle_native_alarm_evidence(event_id,fields_json) VALUES(?,?)`, eventID, string(payload)); err != nil {
+				return err
+			}
+			if _, err = tx.ExecContext(ctx, `INSERT INTO vehicle_alert_event_action(event_id,action,from_status,to_status,actor,note) VALUES(?,'trigger','','unprocessed','native-gb32960','车辆上报原生告警')`, eventID); err != nil {
+				return err
+			}
+			result.Opened++
+		} else if !active && eventID != "" {
+			update, updateErr := tx.ExecContext(ctx, `UPDATE vehicle_alert_event SET status='recovered',recovered_at=?,version=version+1 WHERE id=? AND status IN ('unprocessed','processing')`, record.EventAt, eventID)
+			if updateErr != nil {
+				return updateErr
+			}
+			count, countErr := update.RowsAffected()
+			if countErr != nil {
+				return countErr
+			}
+			if count > 0 {
+				if _, err = tx.ExecContext(ctx, `INSERT INTO vehicle_alert_event_action(event_id,action,from_status,to_status,actor,note) VALUES(?,'recover','','recovered','native-gb32960','车辆上报原生告警解除')`, eventID); err != nil {
+					return err
+				}
+				result.Recovered++
+			}
+			eventID = ""
+		}
+		if _, err = tx.ExecContext(ctx, `UPDATE vehicle_native_alarm_state SET last_event_at=?,active_event_id=? WHERE vin=?`, record.EventAt, eventID, record.VIN); err != nil {
+			return err
+		}
+	}
+	return nil
+}

vehicle-data-platform/apps/api/internal/platform/native_alarm_description.go

@@ -0,0 +1,84 @@
+package platform
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+// GB/T 32960.3-2016, table 18. Bits 19–31 are reserved, not faults.
+var nativeAlarmBitNames = [...]string{
+	"温度差异报警", "电池高温报警", "车载储能装置类型过压报警", "车载储能装置类型欠压报警",
+	"SOC低报警", "单体电池过压报警", "单体电池欠压报警", "SOC过高报警", "SOC跳变报警",
+	"可充电储能系统不匹配报警", "电池单体一致性差报警", "绝缘报警", "DC-DC温度报警", "制动系统报警",
+	"DC-DC状态报警", "驱动电机控制器温度报警", "高压互锁状态报警", "驱动电机温度报警", "车载储能装置类型过充报警",
+}
+
+const nativeAlarm2016Mask uint32 = (1 << 19) - 1
+
+// NativeAlarmDescription is also used by the repair command so historical and
+// newly ingested events use the same interpretation of their saved evidence.
+type NativeAlarmDescription struct {
+	Title        string   `json:"title"`
+	Names        []string `json:"names"`
+	ReservedBits []int    `json:"reservedBits"`
+	Active       bool     `json:"active"`
+}
+
+func nativeAlarmVersion(fields map[string]json.RawMessage) string {
+	var version string
+	_ = json.Unmarshal(fields["gb32960.header.version"], &version)
+	return version
+}
+
+func DescribeNativeAlarm(fields map[string]json.RawMessage) (NativeAlarmDescription, bool) {
+	fields, level, active, valid := nativeAlarmFields(AlertStreamRecord{Protocol: "GB32960", Fields: fields})
+	result := NativeAlarmDescription{Names: []string{}, ReservedBits: []int{}, Active: active}
+	if !valid {
+		return result, false
+	}
+	value, _ := alertStreamRawNumber(fields["gb32960.alarm.general_alarm_flag"])
+	flag := uint32(value)
+	for bit, name := range nativeAlarmBitNames {
+		if flag&(uint32(1)<<bit) != 0 {
+			result.Names = append(result.Names, name)
+		}
+	}
+	for bit := 19; bit < 32; bit++ {
+		if flag&(uint32(1)<<bit) == 0 {
+			continue
+		}
+		if nativeAlarmVersion(fields) == "V2025" {
+			result.Names = append(result.Names, fmt.Sprintf("扩展报警位 bit%d（待匹配2025版定义）", bit))
+		} else {
+			result.ReservedBits = append(result.ReservedBits, bit)
+		}
+	}
+	for _, group := range []struct{ key, label string }{
+		{"battery_faults", "可充电储能装置"}, {"motor_faults", "驱动电机"}, {"engine_faults", "发动机"}, {"other_faults", "其他"},
+	} {
+		var codes []string
+		_ = json.Unmarshal(fields["gb32960.alarm."+group.key], &codes)
+		for _, code := range codes {
+			result.Names = append(result.Names, group.label+"故障码 "+code+"（厂商定义）")
+		}
+	}
+	if len(result.Names) == 0 && level > 0 {
+		result.Names = append(result.Names, fmt.Sprintf("%d级故障（车辆未上报具体故障项）", level))
+	}
+	if len(result.Names) == 0 {
+		result.Title = "无标准告警"
+		return result, true
+	}
+	result.Title = strings.Join(result.Names, "、")
+	// Persist a useful, bounded title in the existing VARCHAR(80) column; detail
+	// keeps every name and code, including concurrent faults.
+	if len([]rune(result.Title)) > 80 {
+		first := []rune(result.Names[0])
+		if len(first) > 55 {
+			first = first[:55]
+		}
+		result.Title = fmt.Sprintf("%s 等%d项告警", string(first), len(result.Names))
+	}
+	return result, true
+}

vehicle-data-platform/apps/api/internal/platform/native_alarm_test.go

@@ -0,0 +1,203 @@
+package platform
+
+import (
+	"encoding/json"
+	"fmt"
+	"regexp"
+	"testing"
+	"time"
+
+	"github.com/DATA-DOG/go-sqlmock"
+)
+
+func nativeAlarmRecord(level, flag string) AlertStreamRecord {
+	fields := map[string]json.RawMessage{"gb32960.alarm.max_alarm_level": json.RawMessage(level), "gb32960.alarm.general_alarm_flag": json.RawMessage(flag)}
+	for _, name := range []string{"battery_faults", "motor_faults", "engine_faults", "other_faults"} {
+		fields["gb32960.alarm."+name] = json.RawMessage(`[]`)
+	}
+	return AlertStreamRecord{Protocol: "GB32960", VIN: "VIN1", SourceEventID: "native-source", EventAt: time.Date(2026, 9, 17, 1, 0, 0, 0, time.UTC), ReceivedAt: time.Date(2026, 9, 17, 1, 0, 1, 0, time.UTC), Fields: fields, Valid: true}
+}
+
+func TestNativeAlarmFields(t *testing.T) {
+	for _, tc := range []struct {
+		name, level, flag string
+		active, valid     bool
+	}{
+		{"clear", "0", `"0x00000000"`, false, true},
+		{"level", "3", `0`, true, true},
+		{"flag", "0", `"0x00000004"`, true, true},
+		{"reserved only", "0", `"0x00300000"`, false, true},
+		{"reserved and insulation", "0", `"0x00380800"`, true, true},
+		{"abnormal", "254", `0`, false, false},
+		{"invalid", "255", `0`, false, false},
+		{"fraction", "1.5", `0`, false, false},
+		{"bad bitmap", "0", `"garbage"`, false, false},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			_, _, active, valid := nativeAlarmFields(nativeAlarmRecord(tc.level, tc.flag))
+			if active != tc.active || valid != tc.valid {
+				t.Fatalf("active=%v valid=%v", active, valid)
+			}
+		})
+	}
+	encodedRecord := nativeAlarmRecord(`"2"`, `"0x00000004"`)
+	for _, name := range []string{"battery_faults", "motor_faults", "engine_faults", "other_faults"} {
+		encodedRecord.Fields["gb32960.alarm."+name] = json.RawMessage(`"[]"`)
+	}
+	encodedRecord.Fields["gb32960.alarm.motor_faults"] = json.RawMessage(`"[\"0x00000001\"]"`)
+	fields, _, active, valid := nativeAlarmFields(encodedRecord)
+	if !valid || !active || string(fields["gb32960.alarm.motor_faults"]) != `["0x00000001"]` {
+		t.Fatalf("gateway string-encoded fault arrays lost: %v", fields)
+	}
+	record := nativeAlarmRecord("0", "0")
+	record.Fields["gb32960.alarm.motor_faults"] = json.RawMessage(`["0x00000001"]`)
+	if _, _, active, valid := nativeAlarmFields(record); !active || !valid {
+		t.Fatal("fault code alone must activate alarm")
+	}
+	delete(record.Fields, "gb32960.alarm.battery_faults")
+	if _, _, _, valid := nativeAlarmFields(record); valid {
+		t.Fatal("partial unit must not activate or recover")
+	}
+}
+
+func TestNativeAlarmLifecycleWithoutRules(t *testing.T) {
+	for _, tc := range []struct {
+		name, existing       string
+		clear, stale, closed bool
+	}{
+		{name: "open without rules"},
+		{name: "continuous alarm deduplicated", existing: "existing"},
+		{name: "recover", existing: "existing", clear: true},
+		{name: "manual closure preserved", existing: "existing", clear: true, closed: true},
+		{name: "out of order ignored", existing: "existing", clear: true, stale: true},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			db, mock, err := sqlmock.New()
+			if err != nil {
+				t.Fatal(err)
+			}
+			defer db.Close()
+			record := nativeAlarmRecord("2", `"0x00000004"`)
+			if tc.clear {
+				record = nativeAlarmRecord("0", "0")
+			}
+			mock.ExpectBegin()
+			mock.ExpectQuery(regexp.QuoteMeta(alertRuleSelect + `WHERE enabled=1 AND archived_at IS NULL AND metric<>'freshness_sec' ORDER BY id FOR UPDATE`)).WillReturnRows(sqlmock.NewRows([]string{"id"}))
+			mock.ExpectQuery(`SELECT v.vin,`).WithArgs("VIN1").WillReturnRows(sqlmock.NewRows([]string{"vin", "plate", "oem", "model", "company"}).AddRow("VIN1", "粤A12345", "", "", ""))
+			mock.ExpectExec(`INSERT IGNORE INTO vehicle_native_alarm_state`).WithArgs("VIN1").WillReturnResult(sqlmock.NewResult(1, 1))
+			last := record.EventAt.Add(-time.Second)
+			if tc.stale {
+				last = record.EventAt.Add(time.Second)
+			}
+			mock.ExpectQuery(`SELECT last_event_at,active_event_id`).WithArgs("VIN1").WillReturnRows(sqlmock.NewRows([]string{"last_event_at", "active_event_id"}).AddRow(last, tc.existing))
+			if !tc.stale {
+				if tc.existing == "" {
+					mock.ExpectExec(regexp.QuoteMeta(alertEventInsertSQL)).WithArgs(sqlmock.AnyArg(), nativeAlarmRuleID+"|VIN1|GB32960", nativeAlarmRuleID, "车载储能装置类型过压报警", 0, "major", "metric", "VIN1", "粤A12345", "GB32960", "alarm_active", "eq", float64(1), float64(1), float64(0), "", 0, "", nil, nil, "native-source", sqlmock.AnyArg(), sqlmock.AnyArg()).WillReturnResult(sqlmock.NewResult(1, 1))
+					payload, _ := json.Marshal(record.Fields)
+					mock.ExpectExec(`INSERT INTO vehicle_native_alarm_evidence`).WithArgs(sqlmock.AnyArg(), string(payload)).WillReturnResult(sqlmock.NewResult(1, 1))
+					mock.ExpectExec(`INSERT INTO vehicle_alert_event_action`).WillReturnResult(sqlmock.NewResult(1, 1))
+				} else if tc.clear {
+					count := int64(1)
+					if tc.closed {
+						count = 0
+					}
+					mock.ExpectExec(`UPDATE vehicle_alert_event SET status='recovered'`).WithArgs(record.EventAt, tc.existing).WillReturnResult(sqlmock.NewResult(0, count))
+					if !tc.closed {
+						mock.ExpectExec(`INSERT INTO vehicle_alert_event_action`).WillReturnResult(sqlmock.NewResult(1, 1))
+					}
+				}
+				mock.ExpectExec(`UPDATE vehicle_native_alarm_state`).WithArgs(record.EventAt, sqlmock.AnyArg(), "VIN1").WillReturnResult(sqlmock.NewResult(0, 1))
+			}
+			mock.ExpectCommit()
+			tx, err := db.Begin()
+			if err != nil {
+				t.Fatal(err)
+			}
+			result, err := evaluateAlertStreamRecordsTx(t.Context(), tx, []AlertStreamRecord{record}, record.ReceivedAt)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if err := tx.Commit(); err != nil {
+				t.Fatal(err)
+			}
+			if result.RulesEvaluated != 0 {
+				t.Fatal("native alarms require no automation")
+			}
+			if tc.existing == "" && result.Opened != 1 {
+				t.Fatalf("not opened: %+v", result)
+			}
+			if tc.existing != "" && result.Opened != 0 {
+				t.Fatal("duplicate event")
+			}
+			if tc.clear && !tc.closed && !tc.stale && result.Recovered != 1 {
+				t.Fatal("not recovered")
+			}
+			if err := mock.ExpectationsWereMet(); err != nil {
+				t.Fatal(err)
+			}
+		})
+	}
+}
+
+func TestNativeAlarmLateAndMissingUnitsDoNotWrite(t *testing.T) {
+	db, mock, _ := sqlmock.New()
+	defer db.Close()
+	late := nativeAlarmRecord("3", "1")
+	late.Late = true
+	missing := nativeAlarmRecord("0", "0")
+	delete(missing.Fields, "gb32960.alarm.general_alarm_flag")
+	mock.ExpectBegin()
+	mock.ExpectCommit()
+	tx, _ := db.Begin()
+	if err := recordNativeAlarmsTx(t.Context(), tx, []AlertStreamRecord{late, missing}, &AlertEvaluationResult{}); err != nil {
+		t.Fatal(err)
+	}
+	if err := tx.Commit(); err != nil {
+		t.Fatal(err)
+	}
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestNativeAlarmDescriptionDecodesSpecificFaultsAndReservedBits(t *testing.T) {
+	record := nativeAlarmRecord("0", `"0x00380800"`)
+	d, ok := DescribeNativeAlarm(record.Fields)
+	if !ok || !d.Active || d.Title != "绝缘报警" || len(d.Names) != 1 || len(d.ReservedBits) != 3 || d.ReservedBits[0] != 19 {
+		t.Fatalf("wrong description: %+v", d)
+	}
+	record = nativeAlarmRecord("0", `"0x00380000"`)
+	d, ok = DescribeNativeAlarm(record.Fields)
+	if !ok || d.Active || len(d.Names) != 0 {
+		t.Fatalf("reserved bits became faults: %+v", d)
+	}
+	record = nativeAlarmRecord("2", `"0x00020810"`)
+	record.Fields["gb32960.alarm.motor_faults"] = json.RawMessage(`"[\"0x12345678\"]"`)
+	d, ok = DescribeNativeAlarm(record.Fields)
+	if !ok || len(d.Names) != 4 || d.Names[0] != "SOC低报警" || d.Names[1] != "绝缘报警" || d.Names[2] != "驱动电机温度报警" || d.Names[3] != "驱动电机故障码 0x12345678（厂商定义）" {
+		t.Fatalf("lost concurrent faults: %+v", d)
+	}
+	record = nativeAlarmRecord("3", `"0x00000000"`)
+	d, ok = DescribeNativeAlarm(record.Fields)
+	if !ok || !d.Active || d.Title != "3级故障（车辆未上报具体故障项）" {
+		t.Fatalf("invented fault meaning: %+v", d)
+	}
+	for bit, name := range nativeAlarmBitNames {
+		record = nativeAlarmRecord("0", fmt.Sprintf("%d", uint32(1)<<bit))
+		d, ok = DescribeNativeAlarm(record.Fields)
+		if !ok || !d.Active || d.Title != name {
+			t.Fatalf("bit %d decoded as %+v", bit, d)
+		}
+	}
+	record = nativeAlarmRecord("0", `"0x00300000"`)
+	record.Fields["gb32960.header.version"] = json.RawMessage(`"V2025"`)
+	d, ok = DescribeNativeAlarm(record.Fields)
+	if !ok || !d.Active || len(d.Names) != 2 || len(d.ReservedBits) != 0 {
+		t.Fatalf("2025 extension must not be silently discarded: %+v", d)
+	}
+	record = nativeAlarmRecord("2", `"0x0007FFFF"`)
+	d, _ = DescribeNativeAlarm(record.Fields)
+	if len(d.Names) != 19 || len([]rune(d.Title)) > 80 {
+		t.Fatalf("title overflow or lost detail: %+v", d)
+	}
+}

vehicle-data-platform/apps/api/internal/platform/production_store.go

@@ -1158,7 +1158,7 @@ func (s *ProductionStore) DailyMileage(ctx context.Context, query url.Values) (P
 		var evidenceAvailable int
 		if err := rows.Scan(&row.VIN, &row.Plate, &row.Date, &row.StartMileageKm, &row.EndMileageKm, &row.DailyMileageKm, &row.PureHydrogenMileageKm,
 			&hydrogen, &physicalRate, &balanced, &balancedRate, &pureElectric, &mixed, &socDelta, &chargeCount, &chargeEnergy, &refuelCount, &refuelAmount,
-			&evidenceAvailable, &row.HydrogenQualityStatus, &row.HydrogenQualityReason, &row.HydrogenAlgorithmVersion, &row.Source); err != nil {
+			&evidenceAvailable, &row.HydrogenQualityStatus, &row.HydrogenQualityReason, &row.HydrogenAlgorithmVersion, &row.Source, &row.Province, &row.City, &row.Region, &row.LocationTime, &row.LocationStatus); err != nil {
 			return Page[DailyMileageRow]{}, err
 		}
 		if hydrogen.Valid {
@@ -1237,7 +1237,8 @@ LIMIT 1`, vin, date)
 	result.BatteryDischargeKWh = nullableFloatPointer(discharge)
 	result.BatteryEquivalentKg = nullableFloatPointer(equivalent)
 	result.SOCBalancedConsumptionKg = nullableFloatPointer(balanced)
-	result.ConsumptionKgPer100Km = nullableFloatPointer(physicalRate)
+	result.PhysicalConsumptionKgPer100Km = nullableFloatPointer(physicalRate)
+	result.ConsumptionKgPer100Km = nullableFloatPointer(balancedRate)
 	result.SOCBalancedKgPer100Km = nullableFloatPointer(balancedRate)
 	result.RefuelAmountKg = nullableFloatPointer(refuelAmount)
 	result.ChargeEnergyKWh = nullableFloatPointer(chargeEnergy)
@@ -1267,7 +1268,7 @@ func (s *ProductionStore) MileageStatistics(ctx context.Context, query url.Value
 	result := MileageStatistics{
 		DateFrom: query.Get("dateFrom"), DateTo: query.Get("dateTo"),
 		Trend: []MileageTrendPoint{}, Ranking: []MileageVehicleRank{},
-		Evidence: "vehicle_daily_mileage（按车辆和日期去重；百公里氢耗按匹配车辆日的纯氢里程计算）/ vehicle_open_daily_energy（质量通过的日用氢量）/ vehicle_realtime_location（最新里程表）",
+		Evidence: "vehicle_daily_mileage（按车辆和日期去重；百公里氢耗按匹配车辆日的纯氢里程计算）/ vehicle_open_daily_energy（质量通过的日修正用氢量）/ vehicle_realtime_location（最新里程表）",
 	}
 	summary := buildMileageStatisticsSummarySQL(query)
 	if err := s.db.QueryRowContext(ctx, summary.Text, summary.Args...).Scan(

vehicle-data-platform/apps/api/internal/platform/production_store_test.go

@@ -24,14 +24,14 @@ func TestProductionStoreDailyMileageReturnsSuspectHydrogenExportDetails(t *testi
 		"hydrogen_consumption_kg", "hydrogen_consumption_kg_per_100km", "hydrogen_soc_balanced_kg", "hydrogen_soc_balanced_kg_per_100km",
 		"pure_electric_mileage_km", "mixed_mileage_km", "battery_soc_delta_pct", "charge_count", "charge_energy_kwh",
 		"refuel_count", "refuel_amount_kg", "hydrogen_evidence_available", "hydrogen_quality_status", "hydrogen_quality_reason",
-		"hydrogen_algorithm_version", "protocol",
+		"hydrogen_algorithm_version", "protocol", "province", "city", "region", "location_time", "location_status",
 	}
 	mock.ExpectQuery("SELECT m.vin").
 		WithArgs(20, 0).
 		WillReturnRows(sqlmock.NewRows(columns).AddRow(
 			"LB9A32A29R0LS1423", "粤AGR9816", "2026-08-26", 23119.8, 23333.1, 213.3, 213.3,
 			4.491, 2.106, 4.544, 2.130, 0.0, 213.3, -4.0, 1, 12.5,
-			1, 8.976, 1, "SUSPECT", "疑似管路泄压", "PRESSURE_NIST_VALID_BOUNDARY_CHARGE_CYCLE_V3_5", "GB32960",
+			1, 8.976, 1, "SUSPECT", "疑似管路泄压", "PRESSURE_NIST_VALID_BOUNDARY_CHARGE_CYCLE_V3_5", "GB32960", "广东省", "广州市", "华南", "2026-08-26T23:59:00+08:00", "已解析",
 		))
 
 	page, err := (&ProductionStore{db: db}).DailyMileage(context.Background(), url.Values{"skipCount": {"1"}})
@@ -42,6 +42,9 @@ func TestProductionStoreDailyMileageReturnsSuspectHydrogenExportDetails(t *testi
 		t.Fatalf("items=%#v", page.Items)
 	}
 	row := page.Items[0]
+	if row.Province != "广东省" || row.City != "广州市" || row.Region != "华南" || row.LocationStatus != "已解析" {
+		t.Fatalf("missing persisted geography: %+v", row)
+	}
 	if row.HydrogenConsumptionKg == nil || *row.HydrogenConsumptionKg != 4.491 || row.HydrogenQualityStatus != "SUSPECT" || row.HydrogenQualityReason == "" ||
 		row.ChargeCount == nil || *row.ChargeCount != 1 || row.ChargeEnergyKWh == nil || *row.ChargeEnergyKWh != 12.5 ||
 		row.RefuelCount == nil || *row.RefuelCount != 1 || row.RefuelAmountKg == nil || *row.RefuelAmountKg != 8.976 {

vehicle-data-platform/apps/api/internal/platform/query_builders_test.go

@@ -568,7 +568,7 @@ func TestMileageQueriesCanRestrictFleetScopeToAuthoritativelyBoundVehicles(t *te
 
 func TestBuildDailyMileageSQLCanMatchStatisticsVehicleDayScope(t *testing.T) {
 	built := buildDailyMileageSQL(url.Values{"deduplicate": {"1"}, "limit": {"50"}})
-	for _, want := range []string{"GROUP BY m.vin, m.stat_date", "MAX(COALESCE(m.daily_mileage_km, 0))", "MAX(COALESCE(m.pure_hydrogen_mileage_km, 0))", "MAX(h.consumption_kg)", "h.vin COLLATE utf8mb4_unicode_ci = m.vin COLLATE utf8mb4_unicode_ci", "GROUP_CONCAT(m.protocol ORDER BY m.daily_mileage_km DESC", "vehicle_daily_mileage_count"} {
+	for _, want := range []string{"GROUP BY m.vin, m.stat_date", "MAX(COALESCE(m.daily_mileage_km, 0))", "MAX(COALESCE(m.pure_hydrogen_mileage_km, 0))", "h.consumption_kg AS hydrogen_consumption_kg", "h.vin COLLATE utf8mb4_unicode_ci = m.vin COLLATE utf8mb4_unicode_ci", "GROUP_CONCAT(m.protocol ORDER BY m.daily_mileage_km DESC", "vehicle_daily_mileage_count"} {
 		if !strings.Contains(built.Text+built.CountText, want) {
 			t.Fatalf("deduplicated daily mileage SQL missing %q: %s / %s", want, built.Text, built.CountText)
 		}
@@ -693,7 +693,7 @@ func TestBuildMileageStatisticsSQLDeduplicatesVehicleDays(t *testing.T) {
 		"GROUP BY m.vin, m.stat_date",
 		"MAX(COALESCE(m.daily_mileage_km",
 		"MAX(COALESCE(m.pure_hydrogen_mileage_km",
-		"MAX(h.consumption_kg)",
+		"MAX(h.soc_balanced_consumption_kg)",
 		"COUNT(DISTINCT d.vin)",
 		"SUM(d.daily_mileage_km)",
 		"SUM(d.pure_hydrogen_mileage_km)",

vehicle-data-platform/apps/api/internal/platform/service.go

@@ -544,8 +544,18 @@ func (s *Service) MonitorSummary(ctx context.Context, query url.Values) (Monitor
 	return s.buildMonitorSummary(ctx, query, vehicles)
 }
 
+type monitorActivityStore interface {
+	MonitorActivitySummary(context.Context) (DashboardSummary, error)
+}
+
 func (s *Service) buildMonitorSummary(ctx context.Context, query url.Values, vehicles Page[VehicleRealtimeRow]) (MonitorSummary, error) {
-	dashboard, err := s.store.DashboardSummary(ctx)
+	var dashboard DashboardSummary
+	var err error
+	if store, ok := s.store.(monitorActivityStore); ok {
+		dashboard, err = store.MonitorActivitySummary(ctx)
+	} else {
+		dashboard, err = s.store.DashboardSummary(ctx)
+	}
 	if err != nil {
 		return MonitorSummary{}, err
 	}
@@ -5581,10 +5591,18 @@ func (s *Service) DailyMileage(ctx context.Context, query url.Values) (Page[Dail
 	if err != nil {
 		return Page[DailyMileageRow]{}, err
 	}
+	for index := range result.Items {
+		row := &result.Items[index]
+		row.HydrogenPhysicalConsumptionKg = row.HydrogenConsumptionKg
+		row.HydrogenConsumptionKg = row.HydrogenSOCBalancedKg
+		row.HydrogenConsumptionKgPer100Km = correctedDailyHydrogenRate(*row)
+	}
+
 	if !hydrogenConsumptionAllowed(ctx) {
 		for index := range result.Items {
 			result.Items[index].PureHydrogenMileageKm = 0
 			result.Items[index].HydrogenConsumptionKg = nil
+			result.Items[index].HydrogenPhysicalConsumptionKg = nil
 			result.Items[index].HydrogenConsumptionKgPer100Km = nil
 			result.Items[index].HydrogenSOCBalancedKg = nil
 			result.Items[index].HydrogenSOCBalancedKgPer100Km = nil
@@ -6692,3 +6710,16 @@ func boolToInt(value bool) int {
 	}
 	return 0
 }
+
+// correctedDailyHydrogenRate keeps physical consumption available for audit,
+// but never uses it as a fallback for the displayed consumption rate.
+func correctedDailyHydrogenRate(row DailyMileageRow) *float64 {
+	if row.HydrogenSOCBalancedKg == nil {
+		return nil
+	}
+	mileage := row.PureHydrogenMileageKm
+	if row.MixedMileageKm != nil && *row.MixedMileageKm > 0 {
+		mileage = *row.MixedMileageKm
+	}
+	return hydrogenRatePer100Km(*row.HydrogenSOCBalancedKg, mileage, 1)
+}

vehicle-data-platform/apps/api/internal/platform/service_test.go

@@ -629,7 +629,7 @@ func TestHydrogenConsumptionMetricsAreNotExposedToCustomerAccounts(t *testing.T)
 		t.Fatal(err)
 	}
 	if len(daily.Items) != 1 || daily.Items[0].PureHydrogenMileageKm != 0 || daily.Items[0].HydrogenConsumptionKg != nil || daily.Items[0].HydrogenConsumptionKgPer100Km != nil ||
-		daily.Items[0].ChargeEnergyKWh != nil || daily.Items[0].RefuelAmountKg != nil || daily.Items[0].HydrogenQualityStatus != "" || daily.Items[0].HydrogenEvidenceAvailable {
+		daily.Items[0].HydrogenPhysicalConsumptionKg != nil || daily.Items[0].ChargeEnergyKWh != nil || daily.Items[0].RefuelAmountKg != nil || daily.Items[0].HydrogenQualityStatus != "" || daily.Items[0].HydrogenEvidenceAvailable {
 		t.Fatalf("customer daily mileage exposed hydrogen metrics: %+v", daily.Items)
 	}
 	summary, err := service.MileageStatistics(customer, query)

vehicle-data-platform/apps/api/tmp/hydrogen-audit-100-real/main.go

@@ -0,0 +1,681 @@
+package main
+
+import (
+	"bytes"
+	"compress/gzip"
+	"crypto/sha256"
+	"encoding/csv"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"lingniu/vehicle-data-platform/apps/api/internal/openplatform"
+)
+
+const (
+	baseURL     = "http://115.29.187.205:20200"
+	hydrogenKWh = 16.0
+)
+
+type candidate struct {
+	VIN            string  `json:"vin"`
+	StatDate       string  `json:"stat_date"`
+	PlatformName   string  `json:"platform_name"`
+	DailyMileageKm float64 `json:"daily_mileage_km"`
+	RawTotal       int     `json:"raw_total"`
+	Plate          string  `json:"plate,omitempty"`
+	SampleNo       int     `json:"sample_no,omitempty"`
+	MileageBin     int     `json:"mileage_bin,omitempty"`
+	Model          string  `json:"model,omitempty"`
+	TankCapacityL  float64 `json:"tank_capacity_l,omitempty"`
+	BatteryKWh     float64 `json:"battery_capacity_kwh,omitempty"`
+}
+
+type capacityRecord struct {
+	VIN, Plate, Model string
+	TankCapacityL     float64
+	Active            int
+}
+
+type rawFrame struct {
+	TS             string         `json:"ts"`
+	FrameID        string         `json:"frame_id"`
+	EventID        string         `json:"event_id"`
+	MessageID      int            `json:"message_id"`
+	MessageIDHex   string         `json:"message_id_hex"`
+	EventTime      string         `json:"event_time"`
+	ReceivedAt     string         `json:"received_at"`
+	RawSizeBytes   int            `json:"raw_size_bytes"`
+	RawHex         string         `json:"raw_hex"`
+	ParsedFields   map[string]any `json:"parsed_fields"`
+	ParseStatus    string         `json:"parse_status"`
+	SourceEndpoint string         `json:"source_endpoint"`
+	Protocol       string         `json:"protocol"`
+	VIN            string         `json:"vin"`
+}
+
+type rawResponse struct {
+	Items []rawFrame `json:"items"`
+	Total int        `json:"total"`
+}
+
+type dayOutput struct {
+	Candidate           candidate                      `json:"candidate"`
+	APIRawFrameCount    int                            `json:"apiRawFrameCount"`
+	UniqueFrameCount    int                            `json:"uniqueFrameCount"`
+	DuplicateFrameCount int                            `json:"duplicateFrameCount"`
+	AlgorithmSamples    int                            `json:"algorithmSamples"`
+	CriticalFieldRows   int                            `json:"criticalFieldRows"`
+	EarliestEventTime   string                         `json:"earliestEventTime"`
+	LatestEventTime     string                         `json:"latestEventTime"`
+	RawArchiveFile      string                         `json:"rawArchiveFile"`
+	RawArchiveSHA256    string                         `json:"rawArchiveSha256"`
+	RawArchiveBytes     int64                          `json:"rawArchiveBytes"`
+	Stat                openplatform.HydrogenDailyStat `json:"stat"`
+}
+
+func main() {
+	if len(os.Args) != 5 && len(os.Args) != 6 {
+		panic("usage: audit <vehicle-metadata.json> <start-date> <end-date> <output-dir> [source-archive-dir]")
+	}
+	metadataPath, startDate, endDate, outputDir := os.Args[1], os.Args[2], os.Args[3], os.Args[4]
+	sourceArchiveDir := ""
+	if len(os.Args) == 6 {
+		sourceArchiveDir = os.Args[5]
+	}
+	start, err := time.Parse("2006-01-02", startDate)
+	if err != nil {
+		panic(err)
+	}
+	end, err := time.Parse("2006-01-02", endDate)
+	if err != nil || end.Before(start) {
+		panic("invalid date range")
+	}
+	var metadata []struct {
+		VIN                string  `json:"vin"`
+		Plate              string  `json:"plate"`
+		Model              string  `json:"model"`
+		TankCapacityL      float64 `json:"tank_capacity_l"`
+		BatteryCapacityKWh float64 `json:"battery_capacity_kwh"`
+	}
+	mustReadJSON(metadataPath, &metadata)
+	if len(metadata) == 0 {
+		panic("vehicle metadata is empty")
+	}
+	selected := make([]candidate, 0, len(metadata)*int(end.Sub(start).Hours()/24+1))
+	for day := start; !day.After(end); day = day.AddDate(0, 0, 1) {
+		statDate := day.Format("2006-01-02")
+		for _, item := range metadata {
+			if len(strings.TrimSpace(item.VIN)) != 17 || item.TankCapacityL <= 0 || item.BatteryCapacityKWh <= 0 {
+				continue
+			}
+			selected = append(selected, candidate{
+				VIN: strings.ToUpper(strings.TrimSpace(item.VIN)), StatDate: statDate,
+				Plate: item.Plate, Model: item.Model, TankCapacityL: item.TankCapacityL,
+				BatteryKWh: item.BatteryCapacityKWh,
+			})
+		}
+	}
+	sort.Slice(selected, func(i, j int) bool {
+		if selected[i].StatDate != selected[j].StatDate {
+			return selected[i].StatDate < selected[j].StatDate
+		}
+		if selected[i].Plate != selected[j].Plate {
+			return selected[i].Plate < selected[j].Plate
+		}
+		return selected[i].VIN < selected[j].VIN
+	})
+	for index := range selected {
+		selected[index].SampleNo = index + 1
+	}
+	if sourceArchiveDir == "" {
+		for day := start; !day.After(end); day = day.AddDate(0, 0, 1) {
+			if err := os.MkdirAll(filepath.Join(outputDir, "raw", day.Format("2006-01-02")), 0o755); err != nil {
+				panic(err)
+			}
+		}
+	}
+	writeJSON(filepath.Join(outputDir, "selected_vehicles.json"), selected)
+
+	jobs := make(chan candidate)
+	results := make(chan dayOutput)
+	errs := make(chan error, len(selected))
+	var wg sync.WaitGroup
+	for i := 0; i < 12; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for c := range jobs {
+				out, err := processDay(c, outputDir, sourceArchiveDir)
+				if err != nil {
+					errs <- err
+					continue
+				}
+				results <- out
+			}
+		}()
+	}
+	go func() {
+		for _, c := range selected {
+			jobs <- c
+		}
+		close(jobs)
+		wg.Wait()
+		close(results)
+		close(errs)
+	}()
+	outputs := make([]dayOutput, 0, len(selected))
+	for out := range results {
+		if out.APIRawFrameCount == 0 {
+			continue
+		}
+		outputs = append(outputs, out)
+		fmt.Fprintf(os.Stderr, "completed %03d %s %s raw=%d samples=%d quality=%s\n", out.Candidate.SampleNo, out.Candidate.Plate, out.Candidate.VIN, out.APIRawFrameCount, out.AlgorithmSamples, out.Stat.QualityStatus)
+	}
+	var allErrs []string
+	for err := range errs {
+		allErrs = append(allErrs, err.Error())
+	}
+	if len(allErrs) > 0 {
+		panic(strings.Join(allErrs, "\n"))
+	}
+	sort.Slice(outputs, func(i, j int) bool { return outputs[i].Candidate.SampleNo < outputs[j].Candidate.SampleNo })
+	writeJSON(filepath.Join(outputDir, "daily_results.json"), outputs)
+	writeManifest(filepath.Join(outputDir, "raw_manifest.csv"), outputs)
+	fmt.Printf("processed=%d raw_frames=%d algorithm_samples=%d intervals=%d\n", len(outputs), sumRaw(outputs), sumSamples(outputs), sumIntervals(outputs))
+}
+
+func stratifiedSelect(all []candidate, plateByVIN map[string]string, capacityByVIN map[string]capacityRecord) []candidate {
+	general, cold := make([]candidate, 0), make([]candidate, 0)
+	for _, c := range all {
+		cap, ok := capacityByVIN[strings.ToUpper(c.VIN)]
+		if !ok || cap.Active != 1 || c.DailyMileageKm < 10 || c.DailyMileageKm > 600 || c.RawTotal < 300 {
+			continue
+		}
+		if cap.Model != "4.5吨货车" && cap.Model != "帕力安牌4.5吨冷链车" {
+			continue
+		}
+		c.Plate = cap.Plate
+		if c.Plate == "" {
+			c.Plate = plateByVIN[strings.ToUpper(c.VIN)]
+		}
+		c.Model = cap.Model
+		c.TankCapacityL = cap.TankCapacityL
+		if cap.Model == "4.5吨货车" {
+			general = append(general, c)
+		} else {
+			cold = append(cold, c)
+		}
+	}
+	if len(general) < 41 || len(cold) < 59 {
+		panic(fmt.Sprintf("insufficient pools general=%d cold=%d", len(general), len(cold)))
+	}
+	selected := append(selectEvenly(general, 41), selectEvenly(cold, 59)...)
+	sort.Slice(selected, func(i, j int) bool {
+		if selected[i].DailyMileageKm != selected[j].DailyMileageKm {
+			return selected[i].DailyMileageKm < selected[j].DailyMileageKm
+		}
+		return selected[i].VIN < selected[j].VIN
+	})
+	for i := range selected {
+		selected[i].SampleNo = i + 1
+		selected[i].MileageBin = i/10 + 1
+	}
+	return selected
+}
+
+func selectEvenly(values []candidate, count int) []candidate {
+	sort.Slice(values, func(i, j int) bool {
+		if values[i].DailyMileageKm != values[j].DailyMileageKm {
+			return values[i].DailyMileageKm < values[j].DailyMileageKm
+		}
+		return values[i].VIN < values[j].VIN
+	})
+	out := make([]candidate, 0, count)
+	for i := 0; i < count; i++ {
+		idx := 0
+		if count > 1 {
+			idx = int(math.Round(float64(i) * float64(len(values)-1) / float64(count-1)))
+		}
+		out = append(out, values[idx])
+	}
+	return out
+}
+
+func processDay(c candidate, outputDir, sourceArchiveDir string) (dayOutput, error) {
+	archiveName := rawArchiveName(c)
+	archivePath := filepath.Join(outputDir, "raw", c.StatDate, archiveName)
+	readArchivePath := archivePath
+	if sourceArchiveDir != "" {
+		readArchivePath = filepath.Join(sourceArchiveDir, "raw", c.StatDate, archiveName)
+		if _, statErr := os.Stat(readArchivePath); os.IsNotExist(statErr) {
+			// Sample numbers depend on the selected vehicle/date set. Reuse an
+			// existing archive by its stable plate/VIN/date suffix when rerunning
+			// only a small subset for validation.
+			pattern := filepath.Join(sourceArchiveDir, "raw", c.StatDate, "*_"+c.Plate+"_"+c.VIN+"_"+c.StatDate+".csv.gz")
+			if matches, _ := filepath.Glob(pattern); len(matches) == 1 {
+				readArchivePath = matches[0]
+			}
+		}
+	}
+	frames := []rawFrame(nil)
+	total := 0
+	var err error
+	if _, statErr := os.Stat(readArchivePath); statErr == nil {
+		frames, err = readRawArchive(readArchivePath)
+		total = len(frames)
+	} else if sourceArchiveDir != "" && os.IsNotExist(statErr) {
+		return dayOutput{Candidate: c}, nil
+	} else {
+		for attempt := 1; attempt <= 3; attempt++ {
+			frames, total, err = fetchFrames(c.VIN, c.StatDate)
+			if err == nil {
+				break
+			}
+			if attempt < 3 {
+				time.Sleep(time.Duration(attempt) * time.Second)
+			}
+		}
+	}
+	if err != nil {
+		return dayOutput{}, fmt.Errorf("%s %s: %w", c.StatDate, c.VIN, err)
+	}
+	if total == 0 {
+		return dayOutput{Candidate: c}, nil
+	}
+	sort.SliceStable(frames, func(i, j int) bool {
+		if frames[i].EventTime != frames[j].EventTime {
+			return frames[i].EventTime < frames[j].EventTime
+		}
+		if frames[i].SourceEndpoint != frames[j].SourceEndpoint {
+			return frames[i].SourceEndpoint < frames[j].SourceEndpoint
+		}
+		return frames[i].TS < frames[j].TS
+	})
+	seen := map[string]bool{}
+	duplicateFrames := 0
+	observations := make([]openplatform.HydrogenObservation, 0, len(frames))
+	criticalRows := 0
+	for _, f := range frames {
+		if f.FrameID != "" {
+			if seen[f.FrameID] {
+				duplicateFrames++
+			}
+			seen[f.FrameID] = true
+		}
+		obs, ok, critical := observationFromFrame(f, c.TankCapacityL, c.StatDate)
+		if critical {
+			criticalRows++
+		}
+		if ok {
+			observations = append(observations, obs)
+		}
+	}
+	params := map[string]openplatform.HydrogenCalculationParameters{c.VIN: {BatteryCapacityKWh: c.BatteryKWh, HydrogenEnergyKWhKg: hydrogenKWh}}
+	stats := openplatform.BuildHydrogenDailyStatsOrderedWithParameters(observations, c.StatDate, 0.05, 20, params)
+	var stat openplatform.HydrogenDailyStat
+	if len(stats) == 1 {
+		stat = stats[0]
+	} else {
+		stat = openplatform.HydrogenDailyStat{VIN: c.VIN, Date: c.StatDate, SampleCount: len(observations), QualityStatus: "NO_DATA", QualityReason: "无有效压力温度样本"}
+	}
+	roles := map[string]string{}
+	for _, interval := range stat.Intervals {
+		appendRole(roles, interval.StartEventID, fmt.Sprintf("运行区间%d(%s)起点", interval.Index, interval.Type))
+		appendRole(roles, interval.EndEventID, fmt.Sprintf("运行区间%d(%s)终点", interval.Index, interval.Type))
+	}
+	for _, interval := range stat.HydrogenIntervals {
+		appendRole(roles, interval.StartEventID, fmt.Sprintf("氢量分段%d起点", interval.Index))
+		appendRole(roles, interval.EndEventID, fmt.Sprintf("氢量分段%d终点", interval.Index))
+	}
+	// Even when the original frames are reused, rewrite the audit CSV so its
+	// “计算角色/排除原因” column matches the current algorithm version and
+	// interval boundaries. The original HEX and parsed fields remain unchanged.
+	if sourceArchiveDir == "" {
+		if err := writeRawCSV(archivePath, c, frames, roles); err != nil {
+			return dayOutput{}, err
+		}
+	}
+	checksum, size, err := fileSHA256(readArchivePath)
+	if err != nil {
+		return dayOutput{}, err
+	}
+	out := dayOutput{Candidate: c, APIRawFrameCount: total, UniqueFrameCount: len(seen), DuplicateFrameCount: duplicateFrames, AlgorithmSamples: len(observations), CriticalFieldRows: criticalRows, RawArchiveFile: filepath.ToSlash(filepath.Join("raw", c.StatDate, archiveName)), RawArchiveSHA256: checksum, RawArchiveBytes: size, Stat: stat}
+	if len(frames) > 0 {
+		out.EarliestEventTime = frames[0].EventTime
+		out.LatestEventTime = frames[len(frames)-1].EventTime
+	}
+	return out, nil
+}
+
+func rawArchiveName(c candidate) string {
+	return fmt.Sprintf("%04d_%s_%s_%s.csv.gz", c.SampleNo, safeName(c.Plate), c.VIN, c.StatDate)
+}
+
+func appendRole(roles map[string]string, eventID, role string) {
+	if eventID == "" {
+		return
+	}
+	if roles[eventID] == "" {
+		roles[eventID] = role
+		return
+	}
+	roles[eventID] += "；" + role
+}
+
+func fileSHA256(path string) (string, int64, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return "", 0, err
+	}
+	defer file.Close()
+	hash := sha256.New()
+	size, err := io.Copy(hash, file)
+	if err != nil {
+		return "", 0, err
+	}
+	return fmt.Sprintf("%x", hash.Sum(nil)), size, nil
+}
+
+func readRawArchive(path string) ([]rawFrame, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+	gz, err := gzip.NewReader(file)
+	if err != nil {
+		return nil, err
+	}
+	defer gz.Close()
+	reader := csv.NewReader(gz)
+	rows, err := reader.ReadAll()
+	if err != nil {
+		return nil, err
+	}
+	if len(rows) == 0 {
+		return nil, fmt.Errorf("empty raw archive %s", path)
+	}
+	columns := map[string]int{}
+	for index, name := range rows[0] {
+		columns[name] = index
+	}
+	cell := func(row []string, name string) string {
+		index, ok := columns[name]
+		if !ok || index >= len(row) {
+			return ""
+		}
+		return row[index]
+	}
+	frames := make([]rawFrame, 0, len(rows)-1)
+	for _, row := range rows[1:] {
+		fields := map[string]any{}
+		if rawFields := cell(row, "完整解析字段JSON"); rawFields != "" {
+			_ = json.Unmarshal([]byte(rawFields), &fields)
+		}
+		messageID, _ := strconv.Atoi(cell(row, "消息ID"))
+		rawSize, _ := strconv.Atoi(cell(row, "原始字节数"))
+		frames = append(frames, rawFrame{
+			FrameID: cell(row, "帧ID"), EventID: cell(row, "事件ID"), MessageID: messageID,
+			MessageIDHex: cell(row, "消息ID_HEX"), EventTime: cell(row, "事件时间"), ReceivedAt: cell(row, "接收时间"),
+			RawSizeBytes: rawSize, RawHex: cell(row, "原始报文HEX"), ParsedFields: fields,
+			ParseStatus: cell(row, "解析状态"), SourceEndpoint: cell(row, "源端点"), Protocol: "GB32960", VIN: cell(row, "VIN"),
+		})
+	}
+	return frames, nil
+}
+
+func fetchFrames(vin, statDate string) ([]rawFrame, int, error) {
+	const limit = 500
+	first, err := fetchPage(vin, statDate, 0, limit, true)
+	if err != nil {
+		return nil, 0, err
+	}
+	frames := append([]rawFrame(nil), first.Items...)
+	for offset := limit; offset < first.Total; offset += limit {
+		page, err := fetchPage(vin, statDate, offset, limit, false)
+		if err != nil {
+			return nil, 0, err
+		}
+		frames = append(frames, page.Items...)
+	}
+	if len(frames) != first.Total {
+		return nil, first.Total, fmt.Errorf("API total=%d fetched=%d", first.Total, len(frames))
+	}
+	return frames, first.Total, nil
+}
+
+func fetchPage(vin, statDate string, offset, limit int, includeTotal bool) (rawResponse, error) {
+	q := url.Values{"protocol": {"GB32960"}, "vin": {vin}, "dateFrom": {statDate + " 00:00:00"}, "dateTo": {statDate + " 23:59:59"}, "orderBy": {"eventTime"}, "limit": {strconv.Itoa(limit)}, "offset": {strconv.Itoa(offset)}, "includeFields": {"true"}, "includePayload": {"true"}, "includeTotal": {strconv.FormatBool(includeTotal)}}
+	req, _ := http.NewRequest(http.MethodGet, baseURL+"/api/history/raw-frames?"+q.Encode(), nil)
+	req.Header.Set("Accept-Encoding", "gzip")
+	client := &http.Client{Timeout: 90 * time.Second}
+	res, err := client.Do(req)
+	if err != nil {
+		return rawResponse{}, err
+	}
+	defer res.Body.Close()
+	if res.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(res.Body)
+		if res.StatusCode == http.StatusInternalServerError && bytes.Contains(body, []byte("Table does not exist")) {
+			return rawResponse{}, nil
+		}
+		return rawResponse{}, fmt.Errorf("HTTP %d: %s", res.StatusCode, body)
+	}
+	var reader io.Reader = res.Body
+	if res.Header.Get("Content-Encoding") == "gzip" {
+		gz, err := gzip.NewReader(res.Body)
+		if err != nil {
+			return rawResponse{}, err
+		}
+		defer gz.Close()
+		reader = gz
+	}
+	var out rawResponse
+	if err := json.NewDecoder(reader).Decode(&out); err != nil {
+		return rawResponse{}, err
+	}
+	return out, nil
+}
+
+func observationFromFrame(f rawFrame, tankCapacity float64, statDate string) (openplatform.HydrogenObservation, bool, bool) {
+	if f.MessageID != 2 || f.ParseStatus != "OK" {
+		return openplatform.HydrogenObservation{}, false, false
+	}
+	pressure, pok := num(f.ParsedFields["gb32960.fuel_cell.max_hydrogen_pressure_mpa"])
+	temp, tok := num(f.ParsedFields["gb32960.fuel_cell.max_hydrogen_temperature_c"])
+	critical := pok && tok
+	if !pok || !tok || pressure <= 0 || pressure > 70 || temp <= -40 || temp > 726.85 {
+		return openplatform.HydrogenObservation{}, false, critical
+	}
+	mass, ok := openplatform.PressureHydrogenMassKg(pressure, temp, tankCapacity)
+	if !ok {
+		return openplatform.HydrogenObservation{}, false, critical
+	}
+	step, _ := openplatform.PressureHydrogenMassKg(math.Max(0, pressure-0.2), temp, tankCapacity)
+	parsed, _ := json.Marshal(f.ParsedFields)
+	_, _, active, known, _ := openplatform.ExtractHydrogenTelemetry(string(parsed))
+	t, err := parseEventTime(f.EventTime)
+	if err != nil || t.Format("2006-01-02") != statDate {
+		return openplatform.HydrogenObservation{}, false, critical
+	}
+	o := openplatform.HydrogenObservation{VIN: f.VIN, Source: f.SourceEndpoint, EventID: f.EventID, ObservedAt: t, MassKg: mass, TankCapacityLiter: tankCapacity, PressureMPa: pressure, TemperatureC: temp, NoiseKg: math.Min(1, math.Max(0.05, mass-step)), RefuelThresholdKg: math.Max(1, mass*0.05), FuelCellActive: active, FuelCellStateKnown: known}
+	if voltage, vok := num(f.ParsedFields["gb32960.fuel_cell.fuel_cell_voltage_v"]); vok && voltage > 0 && voltage <= 1000 {
+		if current, cok := num(f.ParsedFields["gb32960.fuel_cell.fuel_cell_current_a"]); cok && current >= 0 && current <= 2000 {
+			o.FuelCellVoltageV = voltage
+			o.FuelCellCurrentA = current
+			o.FuelCellPowerKnown = true
+		}
+	}
+	if v, ok := num(f.ParsedFields["gb32960.vehicle.soc_percent"]); ok && v >= 0 && v <= 100 {
+		o.SOCPercent = v
+		o.SOCKnown = true
+	}
+	if v, ok := num(f.ParsedFields["gb32960.vehicle.total_mileage_km"]); ok && v >= 0 {
+		o.MileageKm = v
+		o.MileageKnown = true
+	}
+	if v, ok := num(f.ParsedFields["gb32960.vehicle.vehicle_status"]); ok {
+		o.VehicleState = int(v)
+		o.VehicleStateKnown = v >= 0 && v <= 255
+	}
+	if v, ok := num(f.ParsedFields["gb32960.vehicle.charge_status"]); ok {
+		o.ChargeState = int(v)
+		o.ChargeStateKnown = v >= 0 && v <= 255
+	}
+	if v, ok := num(f.ParsedFields["gb32960.vehicle.running_mode"]); ok {
+		o.RunningMode = int(v)
+		o.RunningModeKnown = v >= 0 && v <= 255
+	}
+	return o, true, critical
+}
+
+var rawHeaders = []string{"序号", "车牌", "VIN", "统计日期", "车型", "储氢总容积(L)", "额定电量(kWh)", "事件时间", "接收时间", "帧ID", "事件ID", "消息ID", "消息ID_HEX", "源端点", "解析状态", "原始字节数", "原始报文HEX", "完整解析字段JSON", "最高氢压(MPa)", "最高氢温(℃)", "电池SOC(%)", "仪表总里程(km)", "车辆状态", "充电状态", "运行模式", "燃料电池工作状态", "燃料电池电流(A)", "车端氢气质量(kg)", "系统压力换算剩余氢量(kg)", "噪声阈值(kg)", "是否算法有效样本", "计算角色/排除原因"}
+
+func writeRawCSV(path string, c candidate, frames []rawFrame, roles map[string]string) error {
+	f, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	gz := gzip.NewWriter(f)
+	defer gz.Close()
+	w := csv.NewWriter(gz)
+	defer w.Flush()
+	if err := w.Write(rawHeaders); err != nil {
+		return err
+	}
+	for _, rf := range frames {
+		o, valid, _ := observationFromFrame(rf, c.TankCapacityL, c.StatDate)
+		role := roles[rf.EventID]
+		if !valid {
+			if t, err := parseEventTime(rf.EventTime); err == nil && t.Format("2006-01-02") != c.StatDate {
+				role = "事件时间不在统计日，不进入计算"
+			} else if rf.MessageID != 2 {
+				role = "非实时信息上报帧，不进入计算"
+			} else if rf.ParseStatus != "OK" {
+				role = "解析状态非OK，不进入计算"
+			} else {
+				role = "压力/温度无效或缺失，不进入计算"
+			}
+		} else if role == "" {
+			role = "有效候选帧（由分段规则判定）"
+		}
+		parsedJSON, _ := json.Marshal(rf.ParsedFields)
+		row := []string{fmt.Sprintf("%04d", c.SampleNo), c.Plate, c.VIN, c.StatDate, c.Model, strconv.FormatFloat(c.TankCapacityL, 'f', 2, 64), strconv.FormatFloat(c.BatteryKWh, 'f', 2, 64), rf.EventTime, rf.ReceivedAt, rf.FrameID, rf.EventID, strconv.Itoa(rf.MessageID), rf.MessageIDHex, rf.SourceEndpoint, rf.ParseStatus, strconv.Itoa(rf.RawSizeBytes), rf.RawHex, string(parsedJSON), val(rf.ParsedFields, "gb32960.fuel_cell.max_hydrogen_pressure_mpa"), val(rf.ParsedFields, "gb32960.fuel_cell.max_hydrogen_temperature_c"), val(rf.ParsedFields, "gb32960.vehicle.soc_percent"), val(rf.ParsedFields, "gb32960.vehicle.total_mileage_km"), val(rf.ParsedFields, "gb32960.vehicle.vehicle_status"), val(rf.ParsedFields, "gb32960.vehicle.charge_status"), val(rf.ParsedFields, "gb32960.vehicle.running_mode"), val(rf.ParsedFields, "gb32960.gd_fc_stack.engine_work_state"), val(rf.ParsedFields, "gb32960.fuel_cell.fuel_cell_current_a"), val(rf.ParsedFields, "gb32960.gd_fc_vehicle_info.hydrogen_mass_kg"), blankFloat(valid, o.MassKg), blankFloat(valid, o.NoiseKg), yesNo(valid), role}
+		if err := w.Write(row); err != nil {
+			return err
+		}
+	}
+	return w.Error()
+}
+
+func writeManifest(path string, outputs []dayOutput) {
+	f, err := os.Create(path)
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
+	w := csv.NewWriter(f)
+	defer w.Flush()
+	_ = w.Write([]string{"序号", "车牌", "VIN", "日期", "车型", "储氢总容积(L)", "额定电量(kWh)", "API原始帧数", "唯一帧数", "重复帧数", "算法样本数", "关键字段帧数", "最早事件时间", "最晚事件时间", "原始文件", "压缩包SHA256", "压缩字节数", "质量状态", "质量原因"})
+	for _, o := range outputs {
+		_ = w.Write([]string{fmt.Sprintf("%04d", o.Candidate.SampleNo), o.Candidate.Plate, o.Candidate.VIN, o.Candidate.StatDate, o.Candidate.Model, strconv.FormatFloat(o.Candidate.TankCapacityL, 'f', 2, 64), strconv.FormatFloat(o.Candidate.BatteryKWh, 'f', 2, 64), strconv.Itoa(o.APIRawFrameCount), strconv.Itoa(o.UniqueFrameCount), strconv.Itoa(o.DuplicateFrameCount), strconv.Itoa(o.AlgorithmSamples), strconv.Itoa(o.CriticalFieldRows), o.EarliestEventTime, o.LatestEventTime, o.RawArchiveFile, o.RawArchiveSHA256, strconv.FormatInt(o.RawArchiveBytes, 10), o.Stat.QualityStatus, o.Stat.QualityReason})
+	}
+}
+
+func num(v any) (float64, bool) {
+	switch x := v.(type) {
+	case float64:
+		return x, true
+	case string:
+		n, e := strconv.ParseFloat(strings.TrimSpace(x), 64)
+		return n, e == nil
+	case json.Number:
+		n, e := x.Float64()
+		return n, e == nil
+	default:
+		return 0, false
+	}
+}
+func val(m map[string]any, k string) string {
+	if v, ok := m[k]; ok {
+		return fmt.Sprint(v)
+	}
+	return ""
+}
+func blankFloat(ok bool, v float64) string {
+	if !ok {
+		return ""
+	}
+	return strconv.FormatFloat(v, 'f', 6, 64)
+}
+func yesNo(v bool) string {
+	if v {
+		return "是"
+	}
+	return "否"
+}
+func safeName(v string) string {
+	v = strings.TrimSpace(v)
+	if v == "" {
+		return "无车牌"
+	}
+	return strings.NewReplacer("/", "_", "\\", "_", " ", "_").Replace(v)
+}
+func parseEventTime(value string) (time.Time, error) {
+	loc := time.FixedZone("CST", 8*3600)
+	if t, e := time.ParseInLocation("2006-01-02 15:04:05.000", value, loc); e == nil {
+		return t, nil
+	}
+	return time.ParseInLocation("2006-01-02 15:04:05", value, loc)
+}
+func mustReadJSON(path string, v any) {
+	b, e := os.ReadFile(path)
+	if e != nil {
+		panic(e)
+	}
+	if e = json.Unmarshal(b, v); e != nil {
+		panic(e)
+	}
+}
+func writeJSON(path string, v any) {
+	b, e := json.MarshalIndent(v, "", "  ")
+	if e != nil {
+		panic(e)
+	}
+	if e = os.WriteFile(path, b, 0o644); e != nil {
+		panic(e)
+	}
+}
+func sumRaw(v []dayOutput) int {
+	n := 0
+	for _, x := range v {
+		n += x.APIRawFrameCount
+	}
+	return n
+}
+func sumSamples(v []dayOutput) int {
+	n := 0
+	for _, x := range v {
+		n += x.AlgorithmSamples
+	}
+	return n
+}
+func sumIntervals(v []dayOutput) int {
+	n := 0
+	for _, x := range v {
+		n += len(x.Stat.Intervals)
+	}
+	return n
+}

vehicle-data-platform/apps/api/tmp/hydrogen-audit-100-real/query_capacity.go

@@ -0,0 +1,38 @@
+//go:build ignore
+
+package main
+
+import (
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"net"
+	"net/url"
+	"os"
+	"sort"
+	"strings"
+	"time"
+
+	_ "github.com/go-sql-driver/mysql"
+)
+
+func main() {
+	if len(os.Args)!=3 { panic("usage: query_capacity <selected.json> <output.json>") }
+	var selected []struct{ VIN string `json:"vin"` }
+	b,err:=os.ReadFile(os.Args[1]);if err!=nil{panic(err)};if err=json.Unmarshal(b,&selected);err!=nil{panic(err)}
+	prefix := "HYDROGEN_DB_"
+		host := strings.TrimSpace(os.Getenv(prefix + "HOST"))
+		port := strings.TrimSpace(os.Getenv(prefix + "PORT")); if port == "" { port = "3306" }
+		name := strings.TrimSpace(os.Getenv(prefix + "NAME"))
+		user := os.Getenv(prefix + "USER"); pass := os.Getenv(prefix + "PASSWORD")
+		dsn := user+":"+pass+"@tcp("+net.JoinHostPort(host,port)+")/"+name+"?parseTime=true&loc="+url.QueryEscape("Asia/Shanghai")+"&timeout=5s&readTimeout=15s"
+		db,err:=sql.Open("mysql",dsn); if err!=nil{panic(err)}; defer db.Close(); db.SetConnMaxLifetime(time.Minute); if err=db.Ping();err!=nil{panic(err)}
+		vins:=make([]string,0,len(selected));args:=make([]any,0,len(selected));for _,s:=range selected{v:=strings.ToUpper(strings.TrimSpace(s.VIN));vins=append(vins,v);args=append(args,v)}
+		placeholders:=strings.TrimRight(strings.Repeat("?,",len(vins)),",")
+		rows,err:=db.Query(`SELECT UPPER(TRIM(vin)),plate_number,brand_name,model_name,tank_capacity_l,active,source_model_id,source_updated_at,synced_at FROM lingniu_vehicle_data.vehicle_hydrogen_tank_capacity WHERE UPPER(TRIM(vin)) IN (`+placeholders+`) ORDER BY vin`,args...);if err!=nil{panic(err)};defer rows.Close()
+		type row struct{VIN,Plate,Brand,Model string;TankCapacityL float64;Active int;SourceModelID *int64;SourceUpdatedAt, SyncedAt *time.Time}
+		out:=make([]row,0,len(vins));for rows.Next(){var r row;if err=rows.Scan(&r.VIN,&r.Plate,&r.Brand,&r.Model,&r.TankCapacityL,&r.Active,&r.SourceModelID,&r.SourceUpdatedAt,&r.SyncedAt);err!=nil{panic(err)};out=append(out,r)};if err=rows.Err();err!=nil{panic(err)}
+		sort.Slice(out,func(i,j int)bool{return out[i].VIN<out[j].VIN});data,err:=json.MarshalIndent(out,"","  ");if err!=nil{panic(err)};if err=os.WriteFile(os.Args[2],data,0o644);err!=nil{panic(err)}
+		counts:=map[float64]int{};models:=map[string]int{};for _,r:=range out{counts[r.TankCapacityL]++;models[r.Model]++}
+		fmt.Printf("requested=%d found=%d capacities=%v models=%v\n",len(vins),len(out),counts,models)
+}

vehicle-data-platform/apps/api/tmp/hydrogen-email-audit/query_metadata.go

@@ -0,0 +1,97 @@
+//go:build ignore
+
+package main
+
+import (
+	"database/sql"
+	"encoding/json"
+	"os"
+	"sort"
+	"strings"
+	"time"
+
+	_ "github.com/go-sql-driver/mysql"
+)
+
+type metadataRecord struct {
+	VIN                string     `json:"vin"`
+	Plate              string     `json:"plate"`
+	Brand              string     `json:"brand"`
+	Model              string     `json:"model"`
+	VehicleModelID     int64      `json:"vehicle_model_id"`
+	BatteryCapacityKWh float64    `json:"battery_capacity_kwh"`
+	TankCapacityL      float64    `json:"tank_capacity_l"`
+	SourceUpdatedAt    *time.Time `json:"source_updated_at,omitempty"`
+}
+
+func main() {
+	if len(os.Args) != 2 {
+		panic("usage: query_metadata <output.json>")
+	}
+	dsn := strings.TrimSpace(os.Getenv("MYSQL_DSN"))
+	if dsn == "" {
+		panic("MYSQL_DSN is required")
+	}
+	db, err := sql.Open("mysql", dsn)
+	if err != nil {
+		panic(err)
+	}
+	defer db.Close()
+	rows, err := db.Query(`SELECT UPPER(TRIM(vi.vin)),COALESCE(vi.plate_number,''),
+COALESCE(vm.brand,''),COALESCE(vm.model,''),vm.id,vm.battery_capacity,vm.tank_capacity,
+CASE
+  WHEN vi.update_time IS NULL THEN vm.update_time
+  WHEN vm.update_time IS NULL THEN vi.update_time
+  ELSE GREATEST(vi.update_time,vm.update_time)
+END
+FROM ln_asset_management.vehicle_info vi
+JOIN ln_asset_management.vehicle_model vm ON vm.id=vi.vehicle_model_id
+WHERE COALESCE(vi.del_flag,'0')='0' AND COALESCE(vm.del_flag,'0')='0'
+  AND LOWER(TRIM(vm.brand))='hyundai'
+  AND LENGTH(TRIM(vi.vin))=17
+  AND vm.tank_capacity>0
+  AND vm.battery_capacity>0
+ORDER BY vi.vin,vi.update_time DESC,vi.id DESC`)
+	if err != nil {
+		panic(err)
+	}
+	defer rows.Close()
+	byVIN := map[string]metadataRecord{}
+	for rows.Next() {
+		var row metadataRecord
+		var updated sql.NullTime
+		if err := rows.Scan(&row.VIN, &row.Plate, &row.Brand, &row.Model, &row.VehicleModelID, &row.BatteryCapacityKWh, &row.TankCapacityL, &updated); err != nil {
+			panic(err)
+		}
+		if _, exists := byVIN[row.VIN]; exists {
+			continue
+		}
+		if updated.Valid {
+			value := updated.Time
+			row.SourceUpdatedAt = &value
+		}
+		byVIN[row.VIN] = row
+	}
+	if err := rows.Err(); err != nil {
+		panic(err)
+	}
+	vins := make([]string, 0, len(byVIN))
+	for vin := range byVIN {
+		vins = append(vins, vin)
+	}
+	sort.Strings(vins)
+	out := make([]metadataRecord, 0, len(vins))
+	for _, vin := range vins {
+		out = append(out, byVIN[vin])
+	}
+	output, err := os.Create(os.Args[1])
+	if err != nil {
+		panic(err)
+	}
+	defer output.Close()
+	encoder := json.NewEncoder(output)
+	encoder.SetIndent("", "  ")
+	if err := encoder.Encode(out); err != nil {
+		panic(err)
+	}
+}

vehicle-data-platform/apps/api/tmp/standard-model-trial/main.go

@@ -0,0 +1,660 @@
+package main
+
+import (
+	"bytes"
+	"compress/gzip"
+	"encoding/csv"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"lingniu/vehicle-data-platform/apps/api/internal/openplatform"
+)
+
+const (
+	baseURL           = "http://115.29.187.205:20200"
+	hydrogenEnergyKWh = 16.0
+	maxIntegrationGap = 30 * time.Second
+)
+
+type vehicleMetadata struct {
+	VIN                string  `json:"vin"`
+	Plate              string  `json:"plate"`
+	Model              string  `json:"model"`
+	BatteryCapacityKWh float64 `json:"battery_capacity_kwh"`
+	TankCapacityL      float64 `json:"tank_capacity_l"`
+}
+
+type rawFrame struct {
+	TS             string         `json:"ts"`
+	FrameID        string         `json:"frame_id"`
+	EventID        string         `json:"event_id"`
+	MessageID      int            `json:"message_id"`
+	EventTime      string         `json:"event_time"`
+	ParseStatus    string         `json:"parse_status"`
+	SourceEndpoint string         `json:"source_endpoint"`
+	VIN            string         `json:"vin"`
+	ParsedFields   map[string]any `json:"parsed_fields"`
+}
+
+type rawResponse struct {
+	Items []rawFrame `json:"items"`
+	Total int        `json:"total"`
+}
+
+type energySample struct {
+	At               time.Time
+	VehicleStatus    int
+	ChargeStatus     int
+	SOC              float64
+	Mileage          float64
+	BatteryVoltageV  float64
+	BatteryCurrentA  float64
+	FuelCellVoltageV float64
+	FuelCellCurrentA float64
+	HasSOC           bool
+	HasMileage       bool
+	HasBatteryPower  bool
+	HasFuelCellPower bool
+	HasVehicleStatus bool
+	HasChargeStatus  bool
+}
+
+type energyResult struct {
+	FirstTime                     string  `json:"firstTime"`
+	LastTime                      string  `json:"lastTime"`
+	StartSOC                      float64 `json:"startSoc"`
+	EndSOC                        float64 `json:"endSoc"`
+	SOCChangePctEndMinusStart     float64 `json:"socChangePctEndMinusStart"`
+	StoredEnergyChangeKWhSOC      float64 `json:"storedEnergyChangeKWhSoc"`
+	BatteryNetOutputKWhSOC        float64 `json:"batteryNetOutputKWhSoc"`
+	BatteryNetOutputKWhIntegrated float64 `json:"batteryNetOutputKWhIntegrated"`
+	FuelCellOutputKWhIntegrated   float64 `json:"fuelCellOutputKWhIntegrated"`
+	BatteryCoverageSeconds        float64 `json:"batteryCoverageSeconds"`
+	FuelCellCoverageSeconds       float64 `json:"fuelCellCoverageSeconds"`
+	OperatingSpanSeconds          float64 `json:"operatingSpanSeconds"`
+	BatteryCoverageRatio          float64 `json:"batteryCoverageRatio"`
+	FuelCellCoverageRatio         float64 `json:"fuelCellCoverageRatio"`
+	ExternalChargeFrameCount      int     `json:"externalChargeFrameCount"`
+	EnergySampleCount             int     `json:"energySampleCount"`
+}
+
+type row struct {
+	Date                            string  `json:"date"`
+	Plate                           string  `json:"plate"`
+	VIN                             string  `json:"vin"`
+	Model                           string  `json:"model"`
+	RawFrameCount                   int     `json:"rawFrameCount"`
+	CurrentQuality                  string  `json:"currentQuality"`
+	CurrentReason                   string  `json:"currentReason"`
+	RefuelCount                     int     `json:"refuelCount"`
+	ChargeCount                     int     `json:"chargeCount"`
+	TotalMileageKm                  float64 `json:"totalMileageKm"`
+	PureElectricMileageKm           float64 `json:"pureElectricMileageKm"`
+	CurrentMixedMileageKm           float64 `json:"currentMixedMileageKm"`
+	PhysicalHydrogenKg              float64 `json:"physicalHydrogenKg"`
+	CurrentSOCBalancedKg            float64 `json:"currentSocBalancedKg"`
+	CurrentRatePerMixedKm           float64 `json:"currentRatePerMixedKm"`
+	PhysicalRatePerTotalKm          float64 `json:"physicalRatePerTotalKm"`
+	FullDayStartSOC                 float64 `json:"fullDayStartSoc"`
+	FullDayEndSOC                   float64 `json:"fullDayEndSoc"`
+	FullDaySOCChangePct             float64 `json:"fullDaySocChangePct"`
+	StoredEnergyChangeKWhSOC        float64 `json:"storedEnergyChangeKWhSoc"`
+	BatteryEquivalentKgFixed16      float64 `json:"batteryEquivalentKgFixed16"`
+	StandardLikeBalancedKg          float64 `json:"standardLikeBalancedKg"`
+	StandardLikeRatePerTotalKm      float64 `json:"standardLikeRatePerTotalKm"`
+	StandardLikeApplicable          bool    `json:"standardLikeApplicable"`
+	StandardLikeReason              string  `json:"standardLikeReason"`
+	BatteryNetOutputKWhIntegrated   float64 `json:"batteryNetOutputKWhIntegrated"`
+	FuelCellOutputKWhIntegrated     float64 `json:"fuelCellOutputKWhIntegrated"`
+	BatteryEnergyShare              float64 `json:"batteryEnergyShare"`
+	FuelCellEnergyShare             float64 `json:"fuelCellEnergyShare"`
+	BatteryContributionKm           float64 `json:"batteryContributionKm"`
+	FuelCellContributionKm          float64 `json:"fuelCellContributionKm"`
+	HydrogenRatePerFCContributionKm float64 `json:"hydrogenRatePerFcContributionKm"`
+	BatteryCoverageRatio            float64 `json:"batteryCoverageRatio"`
+	FuelCellCoverageRatio           float64 `json:"fuelCellCoverageRatio"`
+	ExternalChargeFrameCount        int     `json:"externalChargeFrameCount"`
+	PowerIntegrationUsable          bool    `json:"powerIntegrationUsable"`
+}
+
+type job struct {
+	Vehicle vehicleMetadata
+	Date    string
+}
+
+func main() {
+	if len(os.Args) != 5 {
+		panic("usage: standard-model-trial <metadata.json> <start-date> <end-date> <output-dir>")
+	}
+	metadataPath, startDate, endDate, outputDir := os.Args[1], os.Args[2], os.Args[3], os.Args[4]
+	start := mustDate(startDate)
+	end := mustDate(endDate)
+	if end.Before(start) {
+		panic("end date is before start date")
+	}
+	var vehicles []vehicleMetadata
+	mustReadJSON(metadataPath, &vehicles)
+	if len(vehicles) == 0 {
+		panic("metadata is empty")
+	}
+	if err := os.MkdirAll(outputDir, 0o755); err != nil {
+		panic(err)
+	}
+
+	jobs := make(chan job)
+	results := make(chan row)
+	errs := make(chan error, 128)
+	var wg sync.WaitGroup
+	for worker := 0; worker < 16; worker++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			for item := range jobs {
+				result, err := process(item)
+				if err != nil {
+					errs <- fmt.Errorf("%s %s %s: %w", item.Date, item.Vehicle.Plate, item.Vehicle.VIN, err)
+					continue
+				}
+				if result.RawFrameCount > 0 {
+					results <- result
+				}
+			}
+		}()
+	}
+	go func() {
+		for day := start; !day.After(end); day = day.AddDate(0, 0, 1) {
+			for _, vehicle := range vehicles {
+				if len(strings.TrimSpace(vehicle.VIN)) != 17 || vehicle.TankCapacityL <= 0 || vehicle.BatteryCapacityKWh <= 0 {
+					continue
+				}
+				jobs <- job{Vehicle: vehicle, Date: day.Format("2006-01-02")}
+			}
+		}
+		close(jobs)
+		wg.Wait()
+		close(results)
+		close(errs)
+	}()
+
+	var rows []row
+	completed := 0
+	for result := range results {
+		rows = append(rows, result)
+		completed++
+		if completed%25 == 0 {
+			fmt.Fprintf(os.Stderr, "completed=%d latest=%s %s quality=%s raw=%d\n", completed, result.Date, result.Plate, result.CurrentQuality, result.RawFrameCount)
+		}
+	}
+	var errorMessages []string
+	for err := range errs {
+		errorMessages = append(errorMessages, err.Error())
+	}
+	if len(errorMessages) > 0 {
+		panic(strings.Join(errorMessages, "\n"))
+	}
+	sort.Slice(rows, func(i, j int) bool {
+		if rows[i].Date != rows[j].Date {
+			return rows[i].Date < rows[j].Date
+		}
+		if rows[i].Plate != rows[j].Plate {
+			return rows[i].Plate < rows[j].Plate
+		}
+		return rows[i].VIN < rows[j].VIN
+	})
+	writeJSON(filepath.Join(outputDir, "results.json"), rows)
+	writeCSV(filepath.Join(outputDir, "results.csv"), rows)
+	writeJSON(filepath.Join(outputDir, "summary.json"), summarize(rows))
+	fmt.Printf("vehicle_days=%d output=%s\n", len(rows), outputDir)
+}
+
+func process(item job) (row, error) {
+	frames, total, err := fetchFrames(item.Vehicle.VIN, item.Date)
+	if err != nil || total == 0 {
+		return row{Date: item.Date, Plate: item.Vehicle.Plate, VIN: item.Vehicle.VIN, Model: item.Vehicle.Model, RawFrameCount: total}, err
+	}
+	sort.SliceStable(frames, func(i, j int) bool {
+		if frames[i].EventTime != frames[j].EventTime {
+			return frames[i].EventTime < frames[j].EventTime
+		}
+		return frames[i].EventID < frames[j].EventID
+	})
+	observations := make([]openplatform.HydrogenObservation, 0, len(frames))
+	energySamples := make([]energySample, 0, len(frames))
+	for _, frame := range frames {
+		if observation, ok := observationFromFrame(frame, item.Vehicle.TankCapacityL, item.Date); ok {
+			observations = append(observations, observation)
+		}
+		if sample, ok := energySampleFromFrame(frame, item.Date); ok {
+			energySamples = append(energySamples, sample)
+		}
+	}
+	params := map[string]openplatform.HydrogenCalculationParameters{
+		item.Vehicle.VIN: {BatteryCapacityKWh: item.Vehicle.BatteryCapacityKWh, HydrogenEnergyKWhKg: hydrogenEnergyKWh},
+	}
+	stats := openplatform.BuildHydrogenDailyStatsOrderedWithParameters(observations, item.Date, 0.05, 20, params)
+	stat := openplatform.HydrogenDailyStat{VIN: item.Vehicle.VIN, Date: item.Date, QualityStatus: "NO_DATA", QualityReason: "无有效压力温度样本"}
+	if len(stats) == 1 {
+		stat = stats[0]
+	}
+	energy := calculateEnergy(energySamples, item.Vehicle.BatteryCapacityKWh)
+	totalMileage := stat.MixedMileageKm + stat.PureElectricMileageKm
+	result := row{
+		Date: item.Date, Plate: item.Vehicle.Plate, VIN: item.Vehicle.VIN, Model: item.Vehicle.Model,
+		RawFrameCount: total, CurrentQuality: stat.QualityStatus, CurrentReason: stat.QualityReason,
+		RefuelCount: stat.RefuelCount, ChargeCount: stat.ChargeCount,
+		TotalMileageKm: totalMileage, PureElectricMileageKm: stat.PureElectricMileageKm,
+		CurrentMixedMileageKm: stat.MixedMileageKm, PhysicalHydrogenKg: stat.ConsumptionKg,
+		FullDayStartSOC: energy.StartSOC, FullDayEndSOC: energy.EndSOC,
+		FullDaySOCChangePct:           energy.SOCChangePctEndMinusStart,
+		StoredEnergyChangeKWhSOC:      energy.StoredEnergyChangeKWhSOC,
+		BatteryNetOutputKWhIntegrated: energy.BatteryNetOutputKWhIntegrated,
+		FuelCellOutputKWhIntegrated:   energy.FuelCellOutputKWhIntegrated,
+		BatteryCoverageRatio:          energy.BatteryCoverageRatio,
+		FuelCellCoverageRatio:         energy.FuelCellCoverageRatio,
+		ExternalChargeFrameCount:      energy.ExternalChargeFrameCount,
+	}
+	if stat.SOCBalancedConsumptionKg != nil {
+		result.CurrentSOCBalancedKg = *stat.SOCBalancedConsumptionKg
+	}
+	if stat.SOCBalancedKgPer100Km != nil {
+		result.CurrentRatePerMixedKm = *stat.SOCBalancedKgPer100Km
+	}
+	if totalMileage > 0 {
+		result.PhysicalRatePerTotalKm = round(stat.ConsumptionKg * 100 / totalMileage)
+		result.BatteryEquivalentKgFixed16 = round(-energy.StoredEnergyChangeKWhSOC / hydrogenEnergyKWh)
+		result.StandardLikeBalancedKg = round(stat.ConsumptionKg + result.BatteryEquivalentKgFixed16)
+		result.StandardLikeRatePerTotalKm = round(result.StandardLikeBalancedKg * 100 / totalMileage)
+		switch {
+		case energy.ExternalChargeFrameCount > 0:
+			result.StandardLikeReason = "检测到外部充电，整日SOC平衡修正不适用，应按CD/CS分段"
+		case result.StandardLikeBalancedKg < 0:
+			result.StandardLikeReason = "SOC平衡氢量为负，端点、SOC或换算系数需复核"
+		default:
+			result.StandardLikeApplicable = true
+		}
+	} else {
+		result.StandardLikeReason = "无有效总里程"
+	}
+	// The GB/T 43252 contribution trial uses positive battery net output and
+	// fuel-cell output measured over non-external-charge vehicle-on intervals.
+	// Coverage gates prevent sparse power fields from being treated as precise.
+	if totalMileage >= 10 && stat.ConsumptionKg > 0 && energy.ExternalChargeFrameCount == 0 && energy.BatteryCoverageRatio >= 0.98 && energy.FuelCellCoverageRatio >= 0.98 && energy.FuelCellOutputKWhIntegrated > 0 {
+		batteryOutput := math.Max(0, energy.BatteryNetOutputKWhIntegrated)
+		totalOutput := batteryOutput + energy.FuelCellOutputKWhIntegrated
+		if totalOutput > 0 {
+			result.PowerIntegrationUsable = true
+			result.BatteryEnergyShare = round(batteryOutput / totalOutput)
+			result.FuelCellEnergyShare = round(energy.FuelCellOutputKWhIntegrated / totalOutput)
+			result.BatteryContributionKm = round(totalMileage * result.BatteryEnergyShare)
+			result.FuelCellContributionKm = round(totalMileage * result.FuelCellEnergyShare)
+			if result.FuelCellContributionKm > 0 {
+				result.HydrogenRatePerFCContributionKm = round(stat.ConsumptionKg * 100 / result.FuelCellContributionKm)
+			}
+		}
+	}
+	return result, nil
+}
+
+func calculateEnergy(samples []energySample, batteryCapacityKWh float64) energyResult {
+	result := energyResult{EnergySampleCount: len(samples)}
+	if len(samples) == 0 {
+		return result
+	}
+	for _, sample := range samples {
+		if sample.HasChargeStatus && sample.ChargeStatus == 1 {
+			result.ExternalChargeFrameCount++
+		}
+	}
+	operating := make([]energySample, 0, len(samples))
+	for _, sample := range samples {
+		if sample.HasVehicleStatus && sample.VehicleStatus == 1 && (!sample.HasChargeStatus || sample.ChargeStatus != 1) {
+			operating = append(operating, sample)
+		}
+	}
+	if len(operating) == 0 {
+		return result
+	}
+	result.FirstTime = operating[0].At.Format(time.RFC3339)
+	result.LastTime = operating[len(operating)-1].At.Format(time.RFC3339)
+	result.OperatingSpanSeconds = operating[len(operating)-1].At.Sub(operating[0].At).Seconds()
+	for _, sample := range operating {
+		if sample.HasSOC {
+			result.StartSOC = sample.SOC
+			break
+		}
+	}
+	for index := len(operating) - 1; index >= 0; index-- {
+		if operating[index].HasSOC {
+			result.EndSOC = operating[index].SOC
+			break
+		}
+	}
+	result.SOCChangePctEndMinusStart = round(result.EndSOC - result.StartSOC)
+	result.StoredEnergyChangeKWhSOC = round(batteryCapacityKWh * result.SOCChangePctEndMinusStart / 100)
+	result.BatteryNetOutputKWhSOC = round(-result.StoredEnergyChangeKWhSOC)
+	for index := 1; index < len(operating); index++ {
+		previous, current := operating[index-1], operating[index]
+		delta := current.At.Sub(previous.At)
+		if delta <= 0 || delta > maxIntegrationGap {
+			continue
+		}
+		hours := delta.Hours()
+		if previous.HasBatteryPower && current.HasBatteryPower {
+			power0 := previous.BatteryVoltageV * previous.BatteryCurrentA / 1000
+			power1 := current.BatteryVoltageV * current.BatteryCurrentA / 1000
+			result.BatteryNetOutputKWhIntegrated += (power0 + power1) * 0.5 * hours
+			result.BatteryCoverageSeconds += delta.Seconds()
+		}
+		if previous.HasFuelCellPower && current.HasFuelCellPower {
+			power0 := previous.FuelCellVoltageV * previous.FuelCellCurrentA / 1000
+			power1 := current.FuelCellVoltageV * current.FuelCellCurrentA / 1000
+			result.FuelCellOutputKWhIntegrated += (power0 + power1) * 0.5 * hours
+			result.FuelCellCoverageSeconds += delta.Seconds()
+		}
+	}
+	result.BatteryNetOutputKWhIntegrated = round(result.BatteryNetOutputKWhIntegrated)
+	result.FuelCellOutputKWhIntegrated = round(result.FuelCellOutputKWhIntegrated)
+	if result.OperatingSpanSeconds > 0 {
+		result.BatteryCoverageRatio = round(result.BatteryCoverageSeconds / result.OperatingSpanSeconds)
+		result.FuelCellCoverageRatio = round(result.FuelCellCoverageSeconds / result.OperatingSpanSeconds)
+	}
+	return result
+}
+
+func observationFromFrame(frame rawFrame, tankCapacity float64, statDate string) (openplatform.HydrogenObservation, bool) {
+	if frame.MessageID != 2 || !strings.EqualFold(frame.ParseStatus, "OK") {
+		return openplatform.HydrogenObservation{}, false
+	}
+	pressure, pressureOK := number(frame.ParsedFields["gb32960.fuel_cell.max_hydrogen_pressure_mpa"])
+	temperature, temperatureOK := number(frame.ParsedFields["gb32960.fuel_cell.max_hydrogen_temperature_c"])
+	if !pressureOK || !temperatureOK || pressure <= 0 || pressure > 70 || temperature <= -40 || temperature > 726.85 {
+		return openplatform.HydrogenObservation{}, false
+	}
+	mass, ok := openplatform.PressureHydrogenMassKg(pressure, temperature, tankCapacity)
+	if !ok {
+		return openplatform.HydrogenObservation{}, false
+	}
+	step, _ := openplatform.PressureHydrogenMassKg(math.Max(0, pressure-0.2), temperature, tankCapacity)
+	at, err := parseEventTime(frame.EventTime)
+	if err != nil || at.Format("2006-01-02") != statDate {
+		return openplatform.HydrogenObservation{}, false
+	}
+	parsed, _ := json.Marshal(frame.ParsedFields)
+	_, _, active, known, _ := openplatform.ExtractHydrogenTelemetry(string(parsed))
+	observation := openplatform.HydrogenObservation{
+		VIN: frame.VIN, Source: frame.SourceEndpoint, EventID: frame.EventID, ObservedAt: at,
+		MassKg: mass, TankCapacityLiter: tankCapacity, PressureMPa: pressure, TemperatureC: temperature,
+		NoiseKg: math.Min(1, math.Max(0.05, mass-step)), RefuelThresholdKg: math.Max(1, mass*0.05),
+		FuelCellActive: active, FuelCellStateKnown: known,
+	}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.soc_percent"]); ok && value >= 0 && value <= 100 {
+		observation.SOCPercent, observation.SOCKnown = value, true
+	}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.total_mileage_km"]); ok && value >= 0 {
+		observation.MileageKm, observation.MileageKnown = value, true
+	}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.vehicle_status"]); ok {
+		observation.VehicleState, observation.VehicleStateKnown = int(value), value >= 0 && value <= 255
+	}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.charge_status"]); ok {
+		observation.ChargeState, observation.ChargeStateKnown = int(value), value >= 0 && value <= 255
+	}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.running_mode"]); ok {
+		observation.RunningMode, observation.RunningModeKnown = int(value), value >= 0 && value <= 255
+	}
+	return observation, true
+}
+
+func energySampleFromFrame(frame rawFrame, statDate string) (energySample, bool) {
+	if frame.MessageID != 2 || !strings.EqualFold(frame.ParseStatus, "OK") {
+		return energySample{}, false
+	}
+	at, err := parseEventTime(frame.EventTime)
+	if err != nil || at.Format("2006-01-02") != statDate {
+		return energySample{}, false
+	}
+	sample := energySample{At: at}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.vehicle_status"]); ok {
+		sample.VehicleStatus, sample.HasVehicleStatus = int(value), true
+	}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.charge_status"]); ok {
+		sample.ChargeStatus, sample.HasChargeStatus = int(value), true
+	}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.soc_percent"]); ok && value >= 0 && value <= 100 {
+		sample.SOC, sample.HasSOC = value, true
+	}
+	if value, ok := number(frame.ParsedFields["gb32960.vehicle.total_mileage_km"]); ok && value >= 0 {
+		sample.Mileage, sample.HasMileage = value, true
+	}
+	batteryVoltage, batteryVoltageOK := number(frame.ParsedFields["gb32960.vehicle.total_voltage_v"])
+	batteryCurrent, batteryCurrentOK := number(frame.ParsedFields["gb32960.vehicle.total_current_a"])
+	if batteryVoltageOK && batteryCurrentOK && batteryVoltage > 0 && batteryVoltage <= 1000 && batteryCurrent >= -1000 && batteryCurrent <= 1000 {
+		sample.BatteryVoltageV, sample.BatteryCurrentA, sample.HasBatteryPower = batteryVoltage, batteryCurrent, true
+	}
+	fuelCellVoltage, fuelCellVoltageOK := number(frame.ParsedFields["gb32960.fuel_cell.fuel_cell_voltage_v"])
+	fuelCellCurrent, fuelCellCurrentOK := number(frame.ParsedFields["gb32960.fuel_cell.fuel_cell_current_a"])
+	if fuelCellVoltageOK && fuelCellCurrentOK && fuelCellVoltage >= 0 && fuelCellVoltage <= 2000 && fuelCellCurrent >= 0 && fuelCellCurrent <= 2000 {
+		sample.FuelCellVoltageV, sample.FuelCellCurrentA, sample.HasFuelCellPower = fuelCellVoltage, fuelCellCurrent, true
+	}
+	return sample, sample.HasVehicleStatus || sample.HasSOC || sample.HasBatteryPower || sample.HasFuelCellPower
+}
+
+func fetchFrames(vin, date string) ([]rawFrame, int, error) {
+	const limit = 500
+	first, err := fetchPage(vin, date, 0, limit, true)
+	if err != nil {
+		return nil, 0, err
+	}
+	frames := append([]rawFrame(nil), first.Items...)
+	for offset := limit; offset < first.Total; offset += limit {
+		page, err := fetchPage(vin, date, offset, limit, false)
+		if err != nil {
+			return nil, first.Total, err
+		}
+		frames = append(frames, page.Items...)
+	}
+	if len(frames) != first.Total {
+		return nil, first.Total, fmt.Errorf("API total=%d fetched=%d", first.Total, len(frames))
+	}
+	return frames, first.Total, nil
+}
+
+func fetchPage(vin, date string, offset, limit int, includeTotal bool) (rawResponse, error) {
+	query := url.Values{
+		"protocol": {"GB32960"}, "vin": {vin},
+		"dateFrom": {date + " 00:00:00"}, "dateTo": {date + " 23:59:59"},
+		"orderBy": {"eventTime"}, "limit": {strconv.Itoa(limit)}, "offset": {strconv.Itoa(offset)},
+		"includeFields": {"true"}, "includePayload": {"false"}, "includeTotal": {strconv.FormatBool(includeTotal)},
+	}
+	var response *http.Response
+	var err error
+	for attempt := 1; attempt <= 4; attempt++ {
+		request, _ := http.NewRequest(http.MethodGet, baseURL+"/api/history/raw-frames?"+query.Encode(), nil)
+		request.Header.Set("Accept-Encoding", "gzip")
+		response, err = (&http.Client{Timeout: 90 * time.Second}).Do(request)
+		if err == nil {
+			break
+		}
+		if attempt < 4 {
+			time.Sleep(time.Duration(attempt) * 500 * time.Millisecond)
+		}
+	}
+	if err != nil {
+		return rawResponse{}, err
+	}
+	defer response.Body.Close()
+	if response.StatusCode != http.StatusOK {
+		body, _ := io.ReadAll(response.Body)
+		if response.StatusCode == http.StatusInternalServerError && bytes.Contains(body, []byte("Table does not exist")) {
+			return rawResponse{}, nil
+		}
+		return rawResponse{}, fmt.Errorf("HTTP %d: %s", response.StatusCode, body)
+	}
+	var reader io.Reader = response.Body
+	if response.Header.Get("Content-Encoding") == "gzip" {
+		gzipReader, err := gzip.NewReader(response.Body)
+		if err != nil {
+			return rawResponse{}, err
+		}
+		defer gzipReader.Close()
+		reader = gzipReader
+	}
+	var result rawResponse
+	if err := json.NewDecoder(reader).Decode(&result); err != nil {
+		return rawResponse{}, err
+	}
+	return result, nil
+}
+
+func summarize(rows []row) map[string]any {
+	byDate := map[string]map[string]any{}
+	for _, date := range uniqueDates(rows) {
+		var dateRows []row
+		for _, value := range rows {
+			if value.Date == date {
+				dateRows = append(dateRows, value)
+			}
+		}
+		quality := map[string]int{}
+		valid := 0
+		standardApplicable := 0
+		powerUsable := 0
+		physicalTotal, balancedTotal, mileageTotal, balancedMileageTotal := 0.0, 0.0, 0.0, 0.0
+		for _, value := range dateRows {
+			quality[value.CurrentQuality]++
+			if value.CurrentQuality != "NO_DATA" && value.TotalMileageKm > 0 {
+				valid++
+				physicalTotal += value.PhysicalHydrogenKg
+				mileageTotal += value.TotalMileageKm
+			}
+			if value.StandardLikeApplicable {
+				standardApplicable++
+				balancedTotal += value.StandardLikeBalancedKg
+				balancedMileageTotal += value.TotalMileageKm
+			}
+			if value.PowerIntegrationUsable {
+				powerUsable++
+			}
+		}
+		physicalRate, balancedRate := 0.0, 0.0
+		if mileageTotal > 0 {
+			physicalRate = round(physicalTotal * 100 / mileageTotal)
+		}
+		if balancedMileageTotal > 0 {
+			balancedRate = round(balancedTotal * 100 / balancedMileageTotal)
+		}
+		byDate[date] = map[string]any{
+			"vehicleDaysWithFrames": len(dateRows), "validVehicleDays": valid, "standardLikeApplicableVehicleDays": standardApplicable, "qualityCounts": quality,
+			"powerIntegrationUsableVehicleDays": powerUsable, "totalMileageKm": round(mileageTotal),
+			"physicalHydrogenKg": round(physicalTotal), "standardLikeBalancedHydrogenKg": round(balancedTotal),
+			"standardLikeMileageKm": round(balancedMileageTotal), "fleetPhysicalRateKgPer100Km": physicalRate, "fleetStandardLikeRateKgPer100Km": balancedRate,
+		}
+	}
+	return map[string]any{"vehicleDays": len(rows), "byDate": byDate}
+}
+
+func writeCSV(path string, rows []row) {
+	file, err := os.Create(path)
+	if err != nil {
+		panic(err)
+	}
+	defer file.Close()
+	writer := csv.NewWriter(file)
+	defer writer.Flush()
+	headers := []string{"日期", "车牌", "VIN", "车型", "原始帧数", "当前质量状态", "当前质量原因", "加氢次数", "充电次数", "总里程km", "当前纯电里程km", "当前混动里程km", "物理耗氢kg", "当前SOC平衡氢量kg", "当前修正氢耗_按混动里程", "物理氢耗_按总里程", "全日起始SOC", "全日终止SOC", "全日SOC变化_末减初", "全日电池储能变化kWh", "电池等效氢量_16kWhkg", "标准式平衡氢量kg", "标准式平衡氢耗_按总里程", "标准式修正可用", "标准式修正说明", "电流积分电池净输出kWh", "燃料电池输出积分kWh", "电池能量贡献占比", "燃料电池能量贡献占比", "电池贡献里程km", "燃料电池贡献里程km", "按燃料电池贡献里程氢耗", "电池功率覆盖率", "燃料电池功率覆盖率", "外充状态帧数", "功率积分可用"}
+	_ = writer.Write(headers)
+	for _, value := range rows {
+		_ = writer.Write([]string{
+			value.Date, value.Plate, value.VIN, value.Model, integer(value.RawFrameCount), value.CurrentQuality, value.CurrentReason,
+			integer(value.RefuelCount), integer(value.ChargeCount), decimal(value.TotalMileageKm), decimal(value.PureElectricMileageKm),
+			decimal(value.CurrentMixedMileageKm), decimal(value.PhysicalHydrogenKg), decimal(value.CurrentSOCBalancedKg),
+			decimal(value.CurrentRatePerMixedKm), decimal(value.PhysicalRatePerTotalKm), decimal(value.FullDayStartSOC),
+			decimal(value.FullDayEndSOC), decimal(value.FullDaySOCChangePct), decimal(value.StoredEnergyChangeKWhSOC),
+			decimal(value.BatteryEquivalentKgFixed16), decimal(value.StandardLikeBalancedKg), decimal(value.StandardLikeRatePerTotalKm),
+			strconv.FormatBool(value.StandardLikeApplicable), value.StandardLikeReason,
+			decimal(value.BatteryNetOutputKWhIntegrated), decimal(value.FuelCellOutputKWhIntegrated), decimal(value.BatteryEnergyShare),
+			decimal(value.FuelCellEnergyShare), decimal(value.BatteryContributionKm), decimal(value.FuelCellContributionKm),
+			decimal(value.HydrogenRatePerFCContributionKm), decimal(value.BatteryCoverageRatio), decimal(value.FuelCellCoverageRatio),
+			integer(value.ExternalChargeFrameCount), strconv.FormatBool(value.PowerIntegrationUsable),
+		})
+	}
+}
+
+func uniqueDates(rows []row) []string {
+	seen := map[string]bool{}
+	for _, value := range rows {
+		seen[value.Date] = true
+	}
+	dates := make([]string, 0, len(seen))
+	for date := range seen {
+		dates = append(dates, date)
+	}
+	sort.Strings(dates)
+	return dates
+}
+
+func number(value any) (float64, bool) {
+	switch typed := value.(type) {
+	case float64:
+		return typed, true
+	case json.Number:
+		parsed, err := typed.Float64()
+		return parsed, err == nil
+	case string:
+		parsed, err := strconv.ParseFloat(strings.TrimSpace(typed), 64)
+		return parsed, err == nil
+	default:
+		return 0, false
+	}
+}
+
+func parseEventTime(value string) (time.Time, error) {
+	location := time.FixedZone("CST", 8*3600)
+	if parsed, err := time.ParseInLocation("2006-01-02 15:04:05.000", value, location); err == nil {
+		return parsed, nil
+	}
+	return time.ParseInLocation("2006-01-02 15:04:05", value, location)
+}
+
+func mustDate(value string) time.Time {
+	parsed, err := time.Parse("2006-01-02", value)
+	if err != nil {
+		panic(err)
+	}
+	return parsed
+}
+
+func mustReadJSON(path string, target any) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		panic(err)
+	}
+	if err := json.Unmarshal(data, target); err != nil {
+		panic(err)
+	}
+}
+
+func writeJSON(path string, value any) {
+	data, err := json.MarshalIndent(value, "", "  ")
+	if err != nil {
+		panic(err)
+	}
+	if err := os.WriteFile(path, data, 0o644); err != nil {
+		panic(err)
+	}
+}
+
+func round(value float64) float64  { return math.Round(value*1000) / 1000 }
+func decimal(value float64) string { return strconv.FormatFloat(value, 'f', 3, 64) }
+func integer(value int) string     { return strconv.Itoa(value) }

vehicle-data-platform/apps/web/src/api/client.ts

@@ -477,7 +477,7 @@ export const api = {
   }),
   vehicleRealtime: (params = new URLSearchParams(), signal?: AbortSignal) => request<Page<VehicleRealtimeRow>>(`/api/realtime/vehicles?${params.toString()}`, signal ? { signal } : undefined),
   realtimeLocations: (params = new URLSearchParams()) => request<Page<RealtimeLocationRow>>(`/api/realtime/locations?${params.toString()}`),
-  historyLocations: (params = new URLSearchParams()) => request<Page<HistoryLocationRow>>(`/api/history/locations?${params.toString()}`),
+  historyLocations: (params = new URLSearchParams(), signal?: AbortSignal) => request<Page<HistoryLocationRow>>(`/api/history/locations?${params.toString()}`, withSignal(undefined, signal)),
   rawFrames: (params = new URLSearchParams()) => request<Page<RawFrameRow>>(`/api/history/raw-frames?${params.toString()}`),
   rawFramesQuery: (query: RawFrameQuery) => request<Page<RawFrameRow>>('/api/history/raw-frames/query', {
     method: 'POST',

vehicle-data-platform/apps/web/src/api/types.ts

@@ -381,6 +381,8 @@ export interface AlertQuery { keyword?: string; severity?: string; status?: stri
 export interface AlertSummary { active: number; unprocessed: number; processing: number; recovered: number; closed: number; ignored: number; unreadNotifications: number; asOf: string; }
 export interface AlertAction { id: number; action: string; fromStatus: string; toStatus: string; actor: string; note: string; createdAt: string; }
 export interface AlertEvent {
+  nativeAlarmFields?: Record<string, unknown>;
+  nativeAlarmNames?: string[]; nativeAlarmReservedBits?: number[];
   id: string; eventType?: string; eventCategory?: string; executionState?: 'pending' | 'processing' | 'recovered' | 'completed' | 'ignored'; ruleId: string; ruleName: string; ruleVersion: number; severity: AlertSeverity; triggerType?: AlertTriggerType; status: AlertStatus;
   vin: string; plate: string; protocol: string; metric: string; operator: string; triggerValue: number; threshold: number; thresholdHigh: number;
   unit: string; durationSec: number; location: string; longitude?: number; latitude?: number; sourceEventId: string;
@@ -901,6 +903,12 @@ export interface LatestTelemetryResponse {
 }
 
 export interface DailyMileageRow {
+  province?: string;
+  city?: string;
+  region?: string;
+  locationTime?: string;
+  locationStatus?: string;
+  hydrogenPhysicalConsumptionKg?: number | null;
   vin: string;
   plate: string;
   date: string;
@@ -941,7 +949,7 @@ export interface HydrogenDailyEvidence {
   vin: string; plate: string; date: string; source: string; rawConsumptionKg: number;
   batterySocDeltaPct?: number; batteryDischargeKWh?: number; batteryEquivalentKg?: number;
   socBalancedConsumptionKg?: number; mixedMileageKm: number; pureElectricMileageKm: number;
-  consumptionKgPer100Km?: number; socBalancedKgPer100Km?: number; sampleCount: number;
+  physicalConsumptionKgPer100Km?: number; consumptionKgPer100Km?: number; socBalancedKgPer100Km?: number; sampleCount: number;
   refuelCount: number; refuelAmountKg?: number; chargeCount: number; chargeEnergyKWh?: number; validSegmentCount: number; invalidSegmentCount: number;
   qualityStatus: string; qualityReason: string; algorithmVersion: string; calculatedAt: string;
   parameters: {

vehicle-data-platform/apps/web/src/v2/domain/alert.ts

@@ -14,7 +14,7 @@ const LEGACY_LOCAL_SQL_TIMESTAMP = /\.\d{6}Z$/;
 
 export const severityLabels: Record<AlertSeverity, string> = { critical: '紧急', major: '重要', minor: '一般' };
 export const statusLabels: Record<AlertStatus, string> = { unprocessed: '未处理', processing: '处理中', recovered: '已恢复', closed: '已关闭', ignored: '已忽略' };
-export const actionLabels: Record<string, string> = { trigger: '触发', acknowledge: '已确认', close: '已关闭', ignore: '已忽略', recover: '已恢复', processing: '处理中', recovered: '已恢复', closed: '已关闭', ignored: '已忽略' };
+export const actionLabels: Record<string, string> = { repair: '修正告警信息', trigger: '触发', acknowledge: '已确认', close: '已关闭', ignore: '已忽略', recover: '已恢复', processing: '处理中', recovered: '已恢复', closed: '已关闭', ignored: '已忽略' };
 export const metricLabels: Record<string, string> = { speed_kmh: '速度', soc_percent: 'SOC', alarm_active: '协议告警位', freshness_sec: '离线时长', data_delay_sec: '数据延迟' };
 export const operatorLabels: Record<string, string> = { gt: '>', gte: '≥', lt: '<', lte: '≤', eq: '=', neq: '≠', between: '区间内', outside: '区间外', changed: '状态变化' };
 export const triggerTypeLabels: Record<string, string> = { metric: '数值触发', geofence: '电子围栏', stationary: '长时间静止', offline: '长时间离线' };

vehicle-data-platform/apps/web/src/v2/domain/event.ts

@@ -145,3 +145,25 @@ export function automationSource(rule: Pick<AlertRule, 'scopeProtocols'>) {
   if (protocols.length === 1) return protocolEventSources.find((item) => item.protocol === protocols[0])?.label ?? protocols[0];
   return `${protocols.length} 类协议`;
 }
+
+export function isNativeAlarm(event: Pick<AlertEvent, 'ruleId'>) {
+  return event.ruleId === 'native-gb32960-alarm';
+}
+
+export function nativeAlarmDetails(event: AlertEvent) {
+  const fields = event.nativeAlarmFields;
+  if (!fields) return [];
+  return [
+    ['max_alarm_level', '最高报警等级'],
+    ['general_alarm_flag', '通用报警标志'],
+    ['battery_faults', '可充电储能装置故障码'],
+    ['motor_faults', '驱动电机故障码'],
+    ['engine_faults', '发动机故障码'],
+    ['other_faults', '其他故障码'],
+  ].map(([name, label]) => {
+    const value = fields[`gb32960.alarm.${name}`];
+    let text = value == null ? '未上报' : Array.isArray(value) ? (value.length ? value.join('、') : '无') : String(value);
+    if (name === 'max_alarm_level' && value != null) text = ({ '0': '0 · 无故障', '1': '1 · 一级故障', '2': '2 · 二级故障', '3': '3 · 三级故障', '254': '254 · 异常', '255': '255 · 无效' } as Record<string, string>)[String(value)] ?? text;
+    return { key: label, value: text };
+  });
+}

vehicle-data-platform/apps/web/src/v2/domain/mileageExport.test.ts

@@ -14,7 +14,7 @@ test('creates a styled numeric mileage workbook with formulas and frozen panes',
       { vin: 'LTEST000000000002', plate: '粤A54321', brandName: '飞驰', modelName: 'FSQ' }
     ],
     mileageRows: [
-      { vin: 'LTEST000000000001', plate: '粤A12345', date: '2026-07-13', startMileageKm: 100, endMileageKm: 188.7, dailyMileageKm: 88.7, pureHydrogenMileageKm: 56.2, pureElectricMileageKm: 32.5, mixedMileageKm: 56.2, hydrogenConsumptionKg: 3.1, hydrogenConsumptionKgPer100Km: 5.5, hydrogenSocBalancedKg: 3.126, batterySocDeltaPct: -2, chargeCount: 1, chargeEnergyKWh: 12.5, refuelCount: 1, refuelAmountKg: 8.976, hydrogenQualityStatus: 'SUSPECT', hydrogenQualityReason: '疑似管路泄压', source: 'GB32960' },
+      { vin: 'LTEST000000000001', plate: '粤A12345', date: '2026-07-13', province: '广东省', city: '广州市', region: '华南', locationTime: '2026-07-13 23:00:00', locationStatus: '已解析', startMileageKm: 100, endMileageKm: 188.7, dailyMileageKm: 88.7, pureHydrogenMileageKm: 56.2, pureElectricMileageKm: 32.5, mixedMileageKm: 56.2, hydrogenConsumptionKg: 3.126, hydrogenPhysicalConsumptionKg: 3.1, hydrogenConsumptionKgPer100Km: 5.5, hydrogenSocBalancedKg: 3.126, batterySocDeltaPct: -2, chargeCount: 1, chargeEnergyKWh: 12.5, refuelCount: 1, refuelAmountKg: 8.976, hydrogenQualityStatus: 'SUSPECT', hydrogenQualityReason: '疑似管路泄压', source: 'GB32960' },
       { vin: 'LTEST000000000001', plate: '粤A12345', date: '2026-07-14', startMileageKm: 188.7, endMileageKm: 293.3, dailyMileageKm: 104.6, pureHydrogenMileageKm: 72.2, hydrogenConsumptionKg: 4.2, hydrogenConsumptionKgPer100Km: 5.8, source: 'GB32960' }
     ],
     sources: [
@@ -43,12 +43,12 @@ test('creates a styled numeric mileage workbook with formulas and frozen panes',
   expect((sheet as unknown as { conditionalFormattings: unknown[] }).conditionalFormattings).toHaveLength(1);
   const hydrogenSheet = workbook.getWorksheet('氢能明细')!;
   expect(hydrogenSheet.getRow(1).values).toEqual([
-    undefined, '日期', '车牌', 'VIN', '品牌', '车型', '每日氢耗 (kg/100km)', '结果状态', '总里程 (km)', '纯电里程 (km)', '混动里程 (km)', '电SOC差值 (百分点)', '充电次数', '充电量 (kWh)', '加氢次数', '加氢量 (kg)', '修正用氢量 (kg)', '原因', '物理用氢量 (kg)', '来源'
+    undefined, '日期', '车牌', '当天所在省', '当天所在市', '大区', 'VIN', '品牌', '车型', '每日氢耗 (kg/100km)', '结果状态', '总里程 (km)', '纯电里程 (km)', '混动里程 (km)', '电SOC差值 (百分点)', '充电次数', '充电量 (kWh)', '加氢次数', '加氢量 (kg)', '修正用氢量 (kg)', '原因', '物理用氢量 (kg)', '来源', '定位时间（当日最后有效点）', '位置状态'
   ]);
   expect(hydrogenSheet.getRow(2).values).toEqual([
-    undefined, '2026-07-13', '粤A12345', 'LTEST000000000001', '现代', 'XCIENT', 5.5, 'SUSPECT', 88.7, 32.5, 56.2, -2, 1, 12.5, 1, 8.976, 3.126, '疑似管路泄压', 3.1, 'GB32960'
+    undefined, '2026-07-13', '粤A12345', '广东省', '广州市', '华南', 'LTEST000000000001', '现代', 'XCIENT', 5.5, 'SUSPECT', 88.7, 32.5, 56.2, -2, 1, 12.5, 1, 8.976, 3.126, '疑似管路泄压', 3.1, 'GB32960', '2026-07-13 23:00:00', '已解析'
   ]);
-  expect(hydrogenSheet.autoFilter).toEqual({ from: { row: 1, column: 1 }, to: { row: 3, column: 19 } });
+  expect(hydrogenSheet.autoFilter).toEqual({ from: { row: 1, column: 1 }, to: { row: 3, column: 24 } });
   expect((await workbook.xlsx.writeBuffer()).byteLength).toBeGreaterThan(5_000);
 });
 
@@ -93,18 +93,20 @@ test('terminates the workbook worker when an active export is cancelled', async
     dateTo: '2026-07-14',
     dates: ['2026-07-13', '2026-07-14'],
     vehicles: [],
-    mileageRows: [{ vin: 'LTEST000000000001', plate: '粤A12345', date: '2026-07-13', startMileageKm: 100, endMileageKm: 188.7, dailyMileageKm: 88.7, source: 'GB32960' }],
+    mileageRows: [{ vin: 'LTEST000000000001', plate: '粤A12345', date: '2026-07-13', province: '广东省', city: '广州市', region: '华南', locationTime: '2026-07-13 23:00:00', locationStatus: '已解析', startMileageKm: 100, endMileageKm: 188.7, dailyMileageKm: 88.7, source: 'GB32960' }],
     sources: []
   }, controller.signal);
 
   expect(postMessage).toHaveBeenCalledTimes(3);
   expect(postMessage.mock.calls.map(([message]) => message.type)).toEqual(['start', 'rows', 'finish']);
   expect(postMessage.mock.calls[1][0].rows).toEqual([{
+    province: '广东省', city: '广州市', region: '华南', locationTime: '2026-07-13 23:00:00', locationStatus: '已解析',
     vin: 'LTEST000000000001',
     date: '2026-07-13',
     dailyMileageKm: 88.7,
     pureHydrogenMileageKm: undefined,
     hydrogenConsumptionKg: undefined,
+    hydrogenPhysicalConsumptionKg: undefined,
     hydrogenConsumptionKgPer100Km: undefined,
     hydrogenSocBalancedKg: undefined,
     pureElectricMileageKm: undefined,
@@ -143,3 +145,10 @@ test('releases a streaming export before finish when the route aborts', async ()
   expect(terminate).toHaveBeenCalledTimes(1);
   await expect(stream.finish([{ vin: 'VIN001', plate: '粤A00001' }])).rejects.toMatchObject({ name: 'AbortError' });
 });
+
+
+test('hydrogen export opens the hydrogen sheet with geography in the first five columns', async () => {
+  const workbook = await createMileageWorkbook({ metricView: 'hydrogen', dateFrom: '2026-09-01', dateTo: '2026-09-01', dates: ['2026-09-01'], vehicles: [], mileageRows: [], sources: [] });
+  expect(workbook.worksheets[0].name).toBe('氢能明细');
+  expect(Array.from(workbook.worksheets[0].getRow(1).values as unknown[]).slice(1, 6)).toEqual(['日期', '车牌', '当天所在省', '当天所在市', '大区']);
+});

vehicle-data-platform/apps/web/src/v2/domain/mileageExport.ts

@@ -6,6 +6,7 @@ export type MileageExportSource = { protocol: string; label: string; mileageType
 export type MileageWorkbookRow = Pick<DailyMileageRow, 'vin' | 'date' | 'dailyMileageKm'> & Partial<Omit<DailyMileageRow, 'vin' | 'date' | 'dailyMileageKm'>>;
 
 export type MileageExportInput = {
+  metricView?: 'mileage' | 'hydrogen';
   dateFrom: string;
   dateTo: string;
   dates: string[];
@@ -68,7 +69,7 @@ export function createMileageExportStream(input: Omit<MileageExportInput, 'vehic
     }
     const buffer = event.data.buffer;
     const blob = new Blob([buffer], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
-    downloadBlob(blob, `车辆里程查询_${input.dateFrom.split('-').join('')}-${input.dateTo.split('-').join('')}_${finishVehicles.length}辆.xlsx`);
+    downloadBlob(blob, `车辆${input.metricView === 'hydrogen' ? '氢耗明细' : '里程查询'}_${input.dateFrom.split('-').join('')}-${input.dateTo.split('-').join('')}_${finishVehicles.length}辆.xlsx`);
     resolveFinish?.();
     dispose();
   };
@@ -84,11 +85,13 @@ export function createMileageExportStream(input: Omit<MileageExportInput, 'vehic
       post({
         type: 'rows',
         rows: rows.map((row) => ({
+          province: row.province, city: row.city, region: row.region, locationTime: row.locationTime, locationStatus: row.locationStatus,
           vin: row.vin,
           date: row.date,
           dailyMileageKm: row.dailyMileageKm,
           pureHydrogenMileageKm: row.pureHydrogenMileageKm,
           hydrogenConsumptionKg: row.hydrogenConsumptionKg,
+          hydrogenPhysicalConsumptionKg: row.hydrogenPhysicalConsumptionKg,
           hydrogenConsumptionKgPer100Km: row.hydrogenConsumptionKgPer100Km,
           hydrogenSocBalancedKg: row.hydrogenSocBalancedKg,
           pureElectricMileageKm: row.pureElectricMileageKm,
@@ -126,6 +129,7 @@ export function createMileageExportStream(input: Omit<MileageExportInput, 'vehic
 
 export async function downloadMileageWorkbook(input: MileageExportInput, signal?: AbortSignal) {
   const stream = createMileageExportStream({
+    metricView: input.metricView,
     dateFrom: input.dateFrom,
     dateTo: input.dateTo,
     dates: input.dates,

vehicle-data-platform/apps/web/src/v2/domain/mileageWorkbook.ts

@@ -26,6 +26,8 @@ export async function createMileageWorkbook(input: MileageExportInput) {
   workbook.modified = input.exportedAt ?? new Date();
   workbook.calcProperties.fullCalcOnLoad = true;
 
+  // Create the selected view first so Excel/WPS opens the requested export.
+  const primaryHydrogenSheet = input.metricView === 'hydrogen' ? workbook.addWorksheet('氢能明细') : undefined;
   const sheet = workbook.addWorksheet('里程查询', {
     views: [{ state: 'frozen', xSplit: 4, ySplit: 6, activeCell: 'E7', showGridLines: false }],
     pageSetup: { orientation: 'landscape', fitToPage: true, fitToWidth: 1, fitToHeight: 0, paperSize: 9, margins: { left: .25, right: .25, top: .45, bottom: .45, header: .2, footer: .2 } },
@@ -133,14 +135,13 @@ export async function createMileageWorkbook(input: MileageExportInput) {
   }
   sheet.headerFooter.oddFooter = '&L灵牛车辆数据中台&C第 &P / &N 页&R导出于 ' + localDateTime(exportedAt);
 
-  const hydrogenSheet = workbook.addWorksheet('氢能明细', {
+  const hydrogenSheet = primaryHydrogenSheet ?? workbook.addWorksheet('氢能明细');
-    views: [{ state: 'frozen', ySplit: 1, activeCell: 'A2', showGridLines: false }],
+  hydrogenSheet.views = [{ state: 'frozen', xSplit: 2, ySplit: 1, activeCell: 'C2', showGridLines: false }];
-    properties: { defaultRowHeight: 21 }
+  hydrogenSheet.properties.defaultRowHeight = 21;
-  });
   const hydrogenHeaders = [
-    '日期', '车牌', 'VIN', '品牌', '车型', '每日氢耗 (kg/100km)', '结果状态', '总里程 (km)',
+    '日期', '车牌', '当天所在省', '当天所在市', '大区', 'VIN', '品牌', '车型', '每日氢耗 (kg/100km)', '结果状态', '总里程 (km)',
     '纯电里程 (km)', '混动里程 (km)', '电SOC差值 (百分点)', '充电次数', '充电量 (kWh)', '加氢次数', '加氢量 (kg)',
-    '修正用氢量 (kg)', '原因', '物理用氢量 (kg)', '来源'
+    '修正用氢量 (kg)', '原因', '物理用氢量 (kg)', '来源', '定位时间（当日最后有效点）', '位置状态'
   ];
   hydrogenSheet.addRow(hydrogenHeaders);
   const hydrogenHeader = hydrogenSheet.getRow(1);
@@ -158,6 +159,7 @@ export async function createMileageWorkbook(input: MileageExportInput) {
     const row = hydrogenSheet.addRow([
       value.date,
       vehicle?.plate || value.plate || '未绑定',
+      value.province || '未知', value.city || '未知', value.region || '未知',
       value.vin,
       vehicle?.brandName || '待维护',
       vehicle?.modelName || '待维护',
@@ -173,20 +175,21 @@ export async function createMileageWorkbook(input: MileageExportInput) {
       value.refuelAmountKg ?? null,
       value.hydrogenSocBalancedKg ?? null,
       value.hydrogenQualityReason || '',
-      value.hydrogenConsumptionKg ?? null,
+      value.hydrogenPhysicalConsumptionKg ?? null,
-      value.source ?? ''
+      value.source ?? '',
+      value.locationTime || '', value.locationStatus || '未查询'
     ]);
     row.height = 24;
     row.eachCell({ includeEmpty: true }, (cell, columnNumber) => {
-      cell.font = { name: columnNumber === 3 ? 'Consolas' : 'Microsoft YaHei', size: columnNumber === 3 ? 9 : 10, color: { argb: 'FF34445A' } };
+      cell.font = { name: columnNumber === 6 ? 'Consolas' : 'Microsoft YaHei', size: columnNumber === 6 ? 9 : 10, color: { argb: 'FF34445A' } };
-      cell.alignment = { vertical: 'middle', horizontal: columnNumber >= 6 && columnNumber <= 16 ? 'right' : 'left' };
+      cell.alignment = { vertical: 'middle', horizontal: columnNumber >= 9 && columnNumber <= 19 ? 'right' : 'left' };
       cell.fill = { type: 'pattern', pattern: 'solid', fgColor: { argb: index % 2 ? 'FFF9FBFD' : 'FFFFFFFF' } };
       cell.border = { bottom: { style: 'thin', color: { argb: 'FFE6ECF3' } } };
-      if ([6, 8, 9, 10, 11, 13, 15, 16, 18].includes(columnNumber)) cell.numFmt = '#,##0.000';
+      if ([9, 11, 12, 13, 14, 16, 18, 19, 21].includes(columnNumber)) cell.numFmt = '#,##0.000';
-      if ([12, 14].includes(columnNumber)) cell.numFmt = '0';
+      if ([15, 17].includes(columnNumber)) cell.numFmt = '0';
     });
   });
-  [13, 15, 24, 18, 24, 22, 14, 15, 17, 17, 22, 12, 17, 12, 16, 19, 52, 19, 16].forEach((width, index) => {
+  [13, 15, 18, 18, 12, 24, 18, 24, 22, 14, 15, 17, 17, 22, 12, 17, 12, 16, 19, 52, 19, 16, 30, 24].forEach((width, index) => {
     hydrogenSheet.getColumn(index + 1).width = width;
   });
   if (energyRows.length) {

vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.test.tsx

@@ -1359,3 +1359,42 @@ test('opens a recent automation run in a focused event inbox', async () => {
   expect(screen.getByTestId('alert-route-state')).not.toHaveTextContent('eventId=');
   expect(screen.getByTestId('alert-route-state')).not.toHaveTextContent('runFromAutomationId=');
 });
+
+
+test.each([false, true])('displays native GB32960 alarms without automation (mobile=%s)', async (mobile) => {
+  layout.mobile = mobile;
+  const event: AlertEvent = {
+    ...alertEvent('native-event', 'NATIVEVIN', '粤A原生01'),
+    ruleId: 'native-gb32960-alarm', ruleName: '绝缘报警、驱动电机温度报警', ruleVersion: 0,
+    protocol: 'GB32960', metric: 'alarm_active',
+    nativeAlarmNames: ['绝缘报警', '驱动电机温度报警'], nativeAlarmReservedBits: [20, 21],
+    nativeAlarmFields: {
+      'gb32960.alarm.max_alarm_level': 2,
+      'gb32960.alarm.general_alarm_flag': '0x00000004',
+      'gb32960.alarm.battery_faults': ['0x00000001'],
+      'gb32960.alarm.motor_faults': [],
+      'gb32960.alarm.engine_faults': ['0x00000002'],
+      'gb32960.alarm.other_faults': [],
+    },
+  };
+  mocks.alertSummaryV2.mockResolvedValue({ active: 1, unprocessed: 1, processing: 0, recovered: 0, closed: 0, ignored: 0, unreadNotifications: 0, asOf: '' });
+  mocks.alertEventsV2.mockResolvedValue({ items: [event], total: 1, limit: 20, offset: 0 });
+  mocks.alertEventV2.mockResolvedValue(event);
+  mocks.alertRulesV2.mockResolvedValue([]);
+  mocks.alertNotificationsV2.mockResolvedValue({ items: [], total: 0, limit: 100, offset: 0 });
+  const client = new QueryClient({ defaultOptions: { queries: { retry: false } } });
+  render(<QueryClientProvider client={client}><MemoryRouter future={ROUTER_FUTURE} initialEntries={['/alerts?eventId=native-event']}><AlertsPage /></MemoryRouter></QueryClientProvider>);
+  const fields = await screen.findByRole('region', { name: '32960 原生告警字段' });
+  await waitFor(() => expect(fields).toHaveTextContent('2 · 二级故障'));
+  expect(fields).toHaveTextContent('0x00000004');
+  expect(fields).toHaveTextContent('可充电储能装置故障码0x00000001');
+  expect(fields).toHaveTextContent('驱动电机故障码无');
+  expect(fields).toHaveTextContent('发动机故障码0x00000002');
+  expect(fields).toHaveTextContent('其他故障码无');
+  expect(screen.queryByLabelText('事件证据')).not.toBeInTheDocument();
+  expect(screen.getByLabelText('具体告警信息')).toHaveTextContent('绝缘报警');
+  expect(screen.getByLabelText('具体告警信息')).toHaveTextContent('驱动电机温度报警');
+  expect(screen.getByLabelText('具体告警信息')).toHaveTextContent('bit20、bit21');
+  expect(screen.getByLabelText('事件执行轨迹')).toHaveTextContent('车辆原生告警入库');
+  expect(screen.getByLabelText('事件执行轨迹')).not.toHaveTextContent('匹配自动化');
+});

vehicle-data-platform/apps/web/src/v2/pages/AlertsPage.tsx

@@ -6,7 +6,7 @@ import { Link, useSearchParams } from 'react-router-dom';
 import { api } from '../../api/client';
 import type { AlertEvent, AlertNotification, AlertNotificationChannelCapability, AlertNotificationConfig, AlertNotificationRetryResult, AlertNotificationTarget, AlertQuery, AlertRule, AlertRuleInput, AlertRulePage, AlertRuleRevision, AlertStatus, AlertTriggerType, MetricDefinition, Page } from '../../api/types';
 import { actionLabels, alertDeltaText, alertValue, canAct, formatAlertDuration, formatAlertTime, operatorLabels, ruleCondition, thresholdText, triggerTypeLabels } from '../domain/alert';
-import { automationEventType, automationSource, eventContract, eventEvidenceHistoryPath, protocolEventSources, toVehicleEvent } from '../domain/event';
+import { automationEventType, automationSource, eventContract, eventEvidenceHistoryPath, isNativeAlarm, nativeAlarmDetails, protocolEventSources, toVehicleEvent } from '../domain/event';
 import { InlineError, PanelEmpty, PanelError, PanelLoading } from '../shared/AsyncState';
 import { MobileFilterSheet, MobileFilterSheetSection } from '../shared/MobileFilterSheet';
 import { ProtocolTag } from '../shared/ProtocolTag';
@@ -341,7 +341,7 @@ const AlertEventTable = memo(function AlertEventTable({ rows, selectedID, compac
     },
     { title: '协议', dataIndex: 'protocol', className: 'is-protocol', width: 98, render: (value: string) => <ProtocolTag className="v2-alert-protocol-tag" protocol={value} compact /> },
     { title: '发生时间', dataIndex: 'triggeredAt', className: 'is-triggered-at', width: 124, render: (value: string) => <AlertTime value={value} /> },
-    { title: '匹配自动化', dataIndex: 'ruleName', className: 'is-rule', width: 154, render: (value: string) => <span className="v2-alert-event-rule" title={value}>{value}</span> },
+    { title: '事件来源 / 自动化', dataIndex: 'ruleName', className: 'is-rule', width: 154, render: (value: string, event: AlertEvent) => <span className="v2-alert-event-rule" title={value}>{isNativeAlarm(event) ? '车辆原生告警' : value}</span> },
     { title: '执行状态', dataIndex: 'status', className: 'is-status', width: 92, render: (_: AlertEvent['status'], event: AlertEvent) => <EventExecutionTag event={event} /> },
     ];
     return compact
@@ -390,14 +390,22 @@ function EventInspector({ event, loading = false, detailError, note, acting, act
         <div className="v2-alert-focus-facts" aria-label="事件上下文">
           <span><small>协议来源</small><strong><ProtocolTag className="v2-alert-protocol-tag" protocol={event.protocol} compact unknownLabel="未知协议" /></strong></span>
           <span><small>发生时间</small><strong><AlertTime value={normalized.occurredAt} /></strong></span>
-          <span><small>匹配自动化</small><strong>v{event.ruleVersion}</strong></span>
+          <span><small>{isNativeAlarm(event) ? '事件来源' : '匹配自动化'}</small><strong>{isNativeAlarm(event) ? '车辆原生告警' : `v${event.ruleVersion}`}</strong></span>
         </div>
-        <div className="v2-alert-evidence" aria-label="事件证据">
+        {isNativeAlarm(event) ? <section aria-label="32960 原生告警字段">
+          <div className="v2-native-alarm-meaning" aria-label="具体告警信息">
+            <strong>具体告警信息</strong>
+            {event.nativeAlarmNames?.length ? <ul>{event.nativeAlarmNames.map((name) => <li key={name}>{name}</li>)}</ul> : <p>{event.ruleName}</p>}
+            {event.nativeAlarmReservedBits?.length ? <p>预留位 {event.nativeAlarmReservedBits.map((bit) => `bit${bit}`).join('、')} 置位，未计入具体告警。</p> : null}
+          </div>
+          <p>触发时车辆上报的原始字段</p>
+          {event.nativeAlarmFields ? <Descriptions className="v2-alert-descriptions" align="left" size="small" data={nativeAlarmDetails(event)} /> : <p>{loading ? '正在读取告警字段…' : '告警字段暂不可用'}</p>}
+        </section> : <div className="v2-alert-evidence" aria-label="事件证据">
           <Card className="v2-alert-evidence-value is-trigger"><small>观测值</small><strong>{alertValue(event)}</strong></Card>
           <Card className="v2-alert-evidence-value"><small>匹配条件</small><strong>{thresholdText(event)}</strong></Card>
           <Card className="v2-alert-evidence-value is-delta"><small>变化幅度</small><strong>{alertDeltaText(event)}</strong></Card>
-        </div>
+        </div>}
-        <div className="v2-alert-focus-rule"><Tag color="blue" type="light" size="small">自动化</Tag><span>{event.ruleName}</span></div>
+        <div className="v2-alert-focus-rule"><Tag color="blue" type="light" size="small">{isNativeAlarm(event) ? '车辆原生告警' : '自动化'}</Tag><span>{event.ruleName}</span></div>
       </Card>
       {normalized.execution.requiresAttention ? <Card className="v2-alert-detail-card v2-alert-disposition-card" title={<span className="v2-alert-detail-title"><strong>处理说明</strong><Tag color={editable ? 'orange' : 'grey'} type="light" size="small">{editable ? '选填' : '只读'}</Tag></span>} headerLine aria-label="事件处置操作">
         {editable ? <><TextArea maxCount={200} autosize={{ minRows: 2, maxRows: 4 }} placeholder="补充处理说明（选填）" value={note} onChange={onNote} />{actionError ? <p className="v2-alert-action-error">{actionError}</p> : null}</> : <p className="v2-role-notice">当前为只读角色，可查看完整证据与执行记录。</p>}
@@ -406,8 +414,8 @@ function EventInspector({ event, loading = false, detailError, note, acting, act
       <Card className="v2-alert-detail-card v2-alert-progress-card" title={<span className="v2-alert-detail-title"><strong>执行时间线</strong><Tag color="blue" type="light" size="small">{normalized.execution.label}</Tag></span>} headerLine>
         <Timeline className="v2-alert-timeline v2-event-execution-trace" aria-label="事件执行轨迹">
           <Timeline.Item time={<AlertTime value={event.receivedAt} />}><strong>事件已接收</strong><p>{event.protocol} 原始事件进入事件中心</p></Timeline.Item>
-          <Timeline.Item time={<AlertTime value={event.triggeredAt} />}><strong>匹配自动化</strong><p>{event.ruleName} · v{event.ruleVersion}</p></Timeline.Item>
+          <Timeline.Item time={<AlertTime value={event.triggeredAt} />}><strong>{isNativeAlarm(event) ? '车辆原生告警入库' : '匹配自动化'}</strong><p>{event.ruleName}{isNativeAlarm(event) ? '' : ` · v${event.ruleVersion}`}</p></Timeline.Item>
-          <Timeline.Item type={normalized.execution.requiresAttention ? 'ongoing' : 'default'} time={<AlertTime value={event.triggeredAt} />}><strong>{normalized.execution.requiresAttention ? '创建待办并通知' : '执行动作并记录'}</strong><p>{normalized.execution.requiresAttention ? '等待人工确认' : normalized.execution.label}</p></Timeline.Item>
+          <Timeline.Item type={normalized.execution.requiresAttention ? 'ongoing' : 'default'} time={<AlertTime value={event.triggeredAt} />}><strong>{isNativeAlarm(event) ? '记录告警事件' : normalized.execution.requiresAttention ? '创建待办并通知' : '执行动作并记录'}</strong><p>{normalized.execution.requiresAttention ? '等待人工确认' : normalized.execution.label}</p></Timeline.Item>
           {event.actions?.filter((item) => item.action !== 'trigger').map((item) => <Timeline.Item key={item.id} type="default" time={<span>{item.actor} · <AlertTime value={item.createdAt} /></span>}><strong>{actionLabels[item.action] ?? item.action}</strong>{item.note ? <p>{item.note}</p> : null}</Timeline.Item>)}
         </Timeline>
       </Card>
@@ -420,7 +428,7 @@ function EventInspector({ event, loading = false, detailError, note, acting, act
             ...eventContract(event).map((item) => ({ key: item.key, value: <code>{item.value || '—'}</code> })),
             { key: 'event.id', value: <code>{event.id}</code> },
             { key: 'source.event_id', value: <code>{event.sourceEventId || '—'}</code> },
-            { key: 'automation', value: <code>{event.ruleId} / v{event.ruleVersion}</code> }
+            { key: isNativeAlarm(event) ? 'source.kind' : 'automation', value: <code>{isNativeAlarm(event) ? 'native-gb32960' : `${event.ruleId} / v${event.ruleVersion}`}</code> }
           ]} />
         </Collapse.Panel>
       </Collapse>
@@ -567,7 +575,7 @@ function EventWorkspace({ filters, draft, setDraft, setFilters, rules, editable,
           aria-label={mobileLayout ? '事件列表，可上下滚动' : undefined}
         >
           {mobileLayout
-            ? <div className="v2-alert-mobile-list">{rows.map((event) => <Card key={event.id} className={`v2-alert-mobile-card${selectedID === event.id ? ' is-selected' : ''}`} bodyStyle={{ padding: 0 }}><Button theme="borderless" type="tertiary" className="v2-alert-mobile-action" aria-pressed={selectedID === event.id} aria-expanded={selectedID === event.id} aria-label={`查看 ${event.plate || event.vin} ${event.ruleName} 事件详情`} onClick={() => selectEvent(event.id)}><span className="v2-alert-mobile-card-content"><header><strong>{event.ruleName}</strong><EventExecutionTag event={event} /></header><p><strong>{event.plate || '未绑定车牌'}</strong><span>{event.vin}</span></p><div className="v2-alert-mobile-facts"><ProtocolTag className="v2-alert-protocol-tag" protocol={event.protocol} compact /><span><AlertTime value={event.triggeredAt} /></span><span className="v2-alert-mobile-condition"><i>匹配条件</i>{thresholdText(event)}</span></div><footer aria-hidden="true"><IconChevronRight /></footer></span></Button></Card>)}</div>
+            ? <div className="v2-alert-mobile-list">{rows.map((event) => <Card key={event.id} className={`v2-alert-mobile-card${selectedID === event.id ? ' is-selected' : ''}`} bodyStyle={{ padding: 0 }}><Button theme="borderless" type="tertiary" className="v2-alert-mobile-action" aria-pressed={selectedID === event.id} aria-expanded={selectedID === event.id} aria-label={`查看 ${event.plate || event.vin} ${event.ruleName} 事件详情`} onClick={() => selectEvent(event.id)}><span className="v2-alert-mobile-card-content"><header><strong>{event.ruleName}</strong><EventExecutionTag event={event} /></header><p><strong>{event.plate || '未绑定车牌'}</strong><span>{event.vin}</span></p><div className="v2-alert-mobile-facts"><ProtocolTag className="v2-alert-protocol-tag" protocol={event.protocol} compact /><span><AlertTime value={event.triggeredAt} /></span><span className="v2-alert-mobile-condition"><i>{isNativeAlarm(event) ? '事件来源' : '匹配条件'}</i>{isNativeAlarm(event) ? '车辆原生告警' : thresholdText(event)}</span></div><footer aria-hidden="true"><IconChevronRight /></footer></span></Button></Card>)}</div>
             : <AlertEventTable rows={rows} selectedID={selectedID} compact={Boolean(selectedID)} onSelect={selectEvent} />}
           {events.isFetching ? <PanelLoading className="v2-alert-loading" title="正在更新事件…" description="告警列表返回后会自动更新。" compact={Boolean(rows.length)} /> : null}
           {!events.isFetching && !events.isError && !rows.length ? <PanelEmpty