fix: 库存总数包含异动车辆，总计行改为累加计算

- getStats 的 inventory 统计包含 Inventory + Abnormal
- 总计行所有列改为从各车型数据累加，不再使用 SUMMARY

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/server/routes/vehicles.ts

@@ -320,9 +320,9 @@ function getStats(list: Vehicle[], weeklyIds?: WeeklyTruckIds) {
   const strIds = list.map((v) => String(v.id));
   return {
     total: list.length,
-    inventory: list.filter((v) => v.status === 'Inventory').length,
+    inventory: list.filter((v) => v.status === 'Inventory' || v.status === 'Abnormal').length,
     inventoryRegions: getRegionCounts(
-      list.filter((v) => v.status === 'Inventory'),
+      list.filter((v) => v.status === 'Inventory' || v.status === 'Abnormal'),
       REGIONS,
     ),
     pending: list.filter((v) => v.status === 'Pending').length,