feat(ui): full‑width ShadTable across app; fix rent dialog width; correct equipment pagination

- ShadTable: ensure full-width via LayoutBuilder+ConstrainedBox minWidth
- BaseListScreen: default data area padding = 0 for table edge-to-edge
- Vendor/Model/User/Company/Inventory/Zipcode: set columnSpanExtent per column
  and add final filler column to absorb remaining width; pin date/status/actions
  widths; ensure date text is single-line
- Equipment: unify card/border style; define fixed column widths + filler;
  increase checkbox column to 56px to avoid overflow
- Rent list: migrate to ShadTable.list with fixed widths + filler column
- Rent form dialog: prevent infinite width by bounding ShadProgress with
  SizedBox and remove Expanded from option rows; add safe selectedOptionBuilder
- Admin list: fix const with non-const argument in table column extents
- Services/Controller: remove hardcoded perPage=10; use BaseListController
  perPage; trust server meta (total/totalPages) in equipment pagination
- widgets/shad_table: ConstrainedBox(minWidth=viewport) so table stretches

Run: flutter analyze → 0 errors (warnings remain).

lib/injection_container.dart

@@ -14,6 +14,7 @@ import 'data/datasources/remote/company_remote_datasource.dart';
 import 'data/datasources/remote/equipment_remote_datasource.dart';
 import 'data/datasources/remote/lookup_remote_datasource.dart';
 import 'data/datasources/remote/maintenance_remote_datasource.dart';
+import 'data/datasources/remote/dashboard_remote_datasource.dart';
 import 'data/datasources/remote/user_remote_datasource.dart';
 import 'data/datasources/remote/warehouse_location_remote_datasource.dart';
 import 'data/datasources/remote/warehouse_remote_datasource.dart';
@@ -129,6 +130,7 @@ import 'core/services/lookups_service.dart';
 import 'services/administrator_service.dart';
 import 'services/user_service.dart';
 import 'services/warehouse_service.dart';
+import 'services/dashboard_service.dart';
 
 // Administrator
 import 'domain/usecases/administrator_usecase.dart';
@@ -174,6 +176,9 @@ final getIt = sl; // Alias for compatibility
   sl.registerLazySingleton<MaintenanceRemoteDataSource>(
     () => MaintenanceRemoteDataSourceImpl(),
   );
+  sl.registerLazySingleton<DashboardRemoteDataSource>(
+    () => DashboardRemoteDataSourceImpl(sl<ApiClient>()),
+  );
   sl.registerLazySingleton<UserRemoteDataSource>(
     () => UserRemoteDataSourceImpl(sl<ApiClient>()),
   );
@@ -192,6 +197,7 @@ final getIt = sl; // Alias for compatibility
     () => AuthRepositoryImpl(
       remoteDataSource: sl<AuthRemoteDataSource>(),
       sharedPreferences: sl<SharedPreferences>(),
+      secureStorage: sl<FlutterSecureStorage>(),
     ),
   );
   sl.registerLazySingleton<CompanyRepository>(
@@ -394,6 +400,9 @@ final getIt = sl; // Alias for compatibility
   sl.registerLazySingleton<WarehouseService>(
     () => WarehouseService(),
   );
+  sl.registerLazySingleton<DashboardService>(
+    () => DashboardServiceImpl(sl<DashboardRemoteDataSource>()),
+  );
   
   // 재고 이력 관리 서비스 (새로 추가)
   sl.registerLazySingleton<InventoryHistoryService>(