feat(platform): harden telemetry pipeline and unify Semi UI workspaces

go/vehicle-gateway/internal/protocol/gb32960/parser_test.go

@@ -222,6 +222,13 @@ func TestParseFrameKeepsParsingRealFuelCellReportUntilUnknownExtension(t *testin
 	if units[2]["name"] != "fuel_cell" {
 		t.Fatalf("unexpected fuel cell unit: %#v", units[2])
 	}
+	fuelCell, ok := units[2]["value"].(map[string]any)
+	if !ok {
+		t.Fatalf("fuel cell payload missing: %#v", units[2])
+	}
+	if _, ok := fuelCell["max_hydrogen_concentration_ppm"].(int); !ok {
+		t.Fatalf("hydrogen concentration ppm missing: %#v", fuelCell["max_hydrogen_concentration_ppm"])
+	}
 	if units[9]["name"] != "gd_fc_stack" {
 		t.Fatalf("unexpected gd stack unit: %#v", units[9])
 	}
@@ -237,6 +244,69 @@ func TestParseFrameKeepsParsingRealFuelCellReportUntilUnknownExtension(t *testin
 	}
 }
 
+func TestParseFuelCellDataExposesHydrogenConcentrationInReferencePercent(t *testing.T) {
+	data := make([]byte, 18)
+	data[11] = 0x01
+	data[12] = 0xf4
+	fuelCell := parseFuelCellData(data)
+	if concentration, ok := fuelCell["max_hydrogen_concentration_ppm"].(int); !ok || concentration != 500 {
+		t.Fatalf("hydrogen concentration ppm = %#v, want int(500)", fuelCell["max_hydrogen_concentration_ppm"])
+	}
+	if fraction, ok := fuelCell["max_hydrogen_concentration_fraction"].(float64); !ok || math.Abs(fraction-0.0005) > 0.0000001 {
+		t.Fatalf("hydrogen concentration fraction = %#v, want 0.0005", fuelCell["max_hydrogen_concentration_fraction"])
+	}
+	if percent, ok := fuelCell["max_hydrogen_concentration_percent"].(float64); !ok || math.Abs(percent-0.05) > 0.0000001 {
+		t.Fatalf("hydrogen concentration percent = %#v, want 0.05", fuelCell["max_hydrogen_concentration_percent"])
+	}
+}
+
+func TestParseFuelCellDataTreatsProtocolInvalidMarkersAsMissing(t *testing.T) {
+	data := make([]byte, 18)
+	for index := range data {
+		data[index] = 0xff
+	}
+	data[6], data[7] = 0, 0
+	fuelCell := parseFuelCellData(data)
+	for _, key := range []string{"fuel_cell_voltage_v", "fuel_cell_current_a", "hydrogen_consumption_kg_per_100km", "max_hydrogen_temperature_c", "max_hydrogen_concentration_percent", "max_hydrogen_pressure_mpa"} {
+		if fuelCell[key] != nil {
+			t.Fatalf("%s should be nil for protocol invalid marker: %#v", key, fuelCell[key])
+		}
+	}
+}
+
+func TestParseV2025VehicleAndPositionUsesCoordinateSystemByte(t *testing.T) {
+	body := []byte{0x1a, 0x07, 0x11, 0x0a, 0x00, 0x00, 0x01}
+	body = append(body,
+		0x01, 0x03, 0x01,
+		0x00, 0x64,
+		0x00, 0x00, 0x03, 0xe8,
+		0x13, 0x88,
+		0x27, 0x10,
+		80, 0x01, 0x00,
+		0x03, 0xe8)
+	body = append(body,
+		0x05,
+		0x00, 0x02,
+		0x07, 0x36, 0x50, 0x40,
+		0x01, 0xd2, 0x4f, 0x00)
+	fields := map[string]any{}
+	_, units := parseDataBody("V2025", body, fields)
+	if len(units) != 2 {
+		t.Fatalf("units = %#v", units)
+	}
+	vehicle := units[0]["value"].(map[string]any)
+	if _, exists := vehicle["accelerator_pct"]; exists {
+		t.Fatalf("2025 vehicle unit must not invent removed pedal fields: %#v", vehicle)
+	}
+	position := units[1]["value"].(map[string]any)
+	if position["coordinate_system"] != 2 {
+		t.Fatalf("coordinate system = %#v", position["coordinate_system"])
+	}
+	if longitude := position["longitude"].(float64); math.Abs(longitude-121) > 0.000001 {
+		t.Fatalf("longitude = %v", longitude)
+	}
+}
+
 func TestScaledDecimalFieldsDoNotLeakBinaryFloatTails(t *testing.T) {
 	unit := parseDriveMotorData([]byte{
 		0x01,