feat(platform): copy mileage statistics summary

vehicle-data-platform/apps/web/src/pages/Mileage.tsx

@@ -111,6 +111,56 @@ function exportFileName(filters: Record<string, string>) {
   return `daily-mileage-${keyword}-${protocol}.csv`;
 }
 
+function mileageSummaryText({
+  filters,
+  summary,
+  pageMileageTotal,
+  anomalyCount,
+  peakMileage
+}: {
+  filters: Record<string, string>;
+  summary: MileageSummary;
+  pageMileageTotal: number;
+  anomalyCount: number;
+  peakMileage?: DailyMileageRow;
+}) {
+  const keyword = filters.keyword?.trim() || '全部车辆';
+  const protocol = filters.protocol?.trim() || '全部来源';
+  const dateFrom = filters.dateFrom?.trim();
+  const dateTo = filters.dateTo?.trim();
+  const dateRange = dateFrom || dateTo ? `${dateFrom || '-'} 至 ${dateTo || '-'}` : '全部日期';
+  const peak = peakMileage
+    ? `${peakMileage.plate || peakMileage.vin} / ${peakMileage.date} / ${formatKm(peakMileage.dailyMileageKm)} km`
+    : '-';
+  return [
+    '【里程统计摘要】',
+    `车辆范围：${keyword}`,
+    `数据来源：${protocol}`,
+    `日期范围：${dateRange}`,
+    `统计车辆：${summary.vehicleCount.toLocaleString()}，记录：${summary.recordCount.toLocaleString()}，来源：${summary.sourceCount.toLocaleString()}`,
+    `累计里程：${formatKm(summary.totalMileageKm)} km`,
+    `单车平均：${formatKm(summary.averageMileagePerVin)} km`,
+    `当前页里程：${formatKm(pageMileageTotal)} km`,
+    `异常记录：${anomalyCount.toLocaleString()}`,
+    `最大单日：${peak}`,
+    '统计口径：区间总值等于各日里程之和'
+  ].join('\n');
+}
+
+async function copyText(value: string, label: string) {
+  const text = value.trim();
+  if (!text) {
+    Toast.warning(`${label}为空`);
+    return;
+  }
+  try {
+    await navigator.clipboard.writeText(text);
+    Toast.success(`已复制${label}`);
+  } catch {
+    Toast.error(`复制${label}失败`);
+  }
+}
+
 export function Mileage({
   initialVin,
   initialProtocol,
@@ -208,6 +258,18 @@ export function Mileage({
     downloadCsv(exportFileName(filters), buildCsv(mileageExportColumns, rows));
     Toast.success(`已导出 ${rows.length} 条里程明细`);
   };
+  const copyStatisticsSummary = () => {
+    copyText(
+      mileageSummaryText({
+        filters,
+        summary,
+        pageMileageTotal,
+        anomalyCount: anomalyRows.length,
+        peakMileage
+      }),
+      '统计摘要'
+    );
+  };
 
   useEffect(() => {
     const nextFilters = mergeInitialFilters(initialVin, initialProtocol, initialFilters);
@@ -324,6 +386,12 @@ export function Mileage({
         ))}
       </div>
       <Card bordered title="统计口径" style={{ marginTop: 16 }}>
+        <div className="vp-table-toolbar">
+          <Space wrap>
+            <Tag color="blue">可复制日报口径</Tag>
+            <Button size="small" onClick={copyStatisticsSummary}>复制统计摘要</Button>
+          </Space>
+        </div>
         <div className="vp-stat-definition-grid">
           <div>
             <Tag color="blue">日里程</Tag>