feat(mileage): 接入区间汇总并复用查询结果

src/modules/mileage/mileage-display.ts

@@ -2,6 +2,7 @@ import type { MonitoringVehicle } from './types';
 import type { VehicleRecentDay } from './api';
 
 export function monitoringMileageValue(vehicle: MonitoringVehicle): number | string {
+  if (vehicle.periodMileageKm !== undefined) return vehicle.periodMileageKm ?? '—';
   if (vehicle.mileageAnomaly) return '数据异常';
   if (!vehicle.isDataSynced) return '—';
   return Math.max(0, vehicle.dailyKm || 0);
@@ -22,3 +23,8 @@ export function recentMileageStats(days: VehicleRecentDay[]) {
     totalDays: days.length,
   };
 }
+
+export function mileageQualityLabel(vehicle: MonitoringVehicle): string | null {
+  if (!vehicle.qualityStatus) return null;
+  return `${vehicle.validDays ?? 0}天有效 · ${vehicle.missingDays ?? 0}天缺失 · ${vehicle.anomalyDays ?? 0}天异常`;
+}