feat(vehicle-hub): 新增车辆运维页（健康监控 / 维护操作 / 批量管理）

- 新增 fleetHealth / vehicleOps API、useVehicleHub 组合式与 VehicleHealthCard 卡片
- 新增 /admin/config/vehicle-hub 与 /monitor/vehicle-hub 双端路由及侧栏菜单
- car 类型补充 rawId/onboardUrl/lstatus 及 FleetHealthRow/VehicleCardModel
- 后端 PageCatalog 注册「车辆运维」页，原「车辆维护」更名为「车辆维护策略」

Co-authored-by: Cursor <cursoragent@cursor.com>

frontends/apps/simple-platform-vue/src/router/index.ts

@@ -35,6 +35,8 @@ const routes: RouteRecordRaw[] = [
       { path: 'config/integrations', name: 'admin-config-integrations', component: () => import('@/views/admin/config/ExternalIntegrationView.vue'), meta: { title: '外部系统对接' } },
       { path: 'config/routing', name: 'admin-config-routing', component: () => import('@/views/admin/config/RoutingPolicyView.vue'), meta: { title: '路径规划策略' } },
       { path: 'config/vehicle', name: 'admin-config-vehicle', component: () => import('@/views/admin/config/VehicleMaintenanceView.vue'), meta: { title: '车辆维护策略' } },
+      { path: 'config/vehicle-hub', name: 'admin-vehicle-hub', component: () => import('@/views/shared/VehicleHubView.vue'), meta: { title: '车辆运维' } },
+      { path: 'vehicle-hub', redirect: '/admin/config/vehicle-hub' },
       { path: 'config/charge', name: 'admin-config-charge', component: () => import('@/views/admin/config/ChargePolicyView.vue'), meta: { title: '充电逻辑' } },
       { path: 'config/task', name: 'admin-config-task', component: () => import('@/views/admin/config/TaskAllocationView.vue'), meta: { title: '任务分配' } },
       { path: 'config/traffic', name: 'admin-config-traffic', component: () => import('@/views/admin/config/TrafficRuleView.vue'), meta: { title: '交通管制' } },
@@ -55,6 +57,7 @@ const routes: RouteRecordRaw[] = [
     redirect: '/monitor/map',
     children: [
       { path: 'dashboard', name: 'monitor-dashboard', component: () => import('@/views/monitor/MonitorDashboardView.vue'), meta: { title: '运营总览' } },
+      { path: 'vehicle-hub', name: 'monitor-vehicle-hub', component: () => import('@/views/shared/VehicleHubView.vue'), meta: { title: '车辆运维' } },
       { path: 'map', name: 'monitor-map', component: () => import('@/views/monitor/MonitorMapView.vue'), meta: { title: '地图监控' } },
       { path: 'ops', name: 'monitor-ops', component: () => import('@/views/monitor/OpsActionPanelView.vue'), meta: { title: '运维操作' } },
       { path: 'notes', name: 'monitor-notes', component: () => import('@/views/monitor/AnnotationView.vue'), meta: { title: '运营备注' } }