feat: tab导航、recharts图表、库存统计、出勤率里程、区域城市下钻、数据一致性修复

- 新增tab导航（总览/按部门/按区域/按客户）+ 移动端底部导航
- 新增recharts柱状图（区域分布）和饼图（客户分布）
- 新增库存统计模块（按区域/按车型，筛选面板）
- 对接ln_vehicle_day_mileage表实现出勤率和日均里程
- 区域运营支持区域→城市→车型三级下钻
- 修复ownership取字段错误（改用truck_rent_status）
- 修复部门统计闲置定义（当日无行驶里程）
- 修复区域图表"其他"重复问题（后端Top N合并）
- 修复城市名空值降级（resolveCity取province）
- 修复下钻数据不一致（统一category/vehicleType参数）
- 扩展/list端点支持大区过滤和未分配匹配
- 所有筛选改为searchable datalist

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

src/types.ts

@@ -98,6 +98,7 @@ export interface InventoryTypeSummary {
 export interface VehicleListItem {
   id: number;
   plateNumber: string;
+  vin: string;
   type: string;
   model: string;
   location: string;
@@ -141,16 +142,36 @@ export interface DeptGroup {
   totalAssets: number;
   operatingCount: number;
   idleCount: number;
+  attendanceRate: number;
+  avgMileage: number;
   managers: ManagerStats[];
 }
 
+export interface RegionTypeBreakdown {
+  type: string;
+  total: number;
+  operating: number;
+  inventory: number;
+  customers: string[];
+}
+
+export interface RegionCityGroup {
+  city: string;
+  totalAssets: number;
+  operatingCount: number;
+  pendingCount: number;
+  customers: string[];
+  typeBreakdown: RegionTypeBreakdown[];
+}
+
 export interface RegionGroup {
   region: string;
   totalAssets: number;
   operatingCount: number;
-  inventoryCount: number;
+  pendingCount: number;
   customers: string[];
-  typeBreakdown: { type: string; total: number; operating: number; inventory: number; customers: string[] }[];
+  typeBreakdown: RegionTypeBreakdown[];
+  cities: RegionCityGroup[];
 }
 
 export interface CustomerStats {