Add board service and repository, update routes and assets

- Introduced BoardService and BoardRepository for managing board-related data.
- Updated app routes to reflect the new board screen structure.
- Added new board-related assets to the asset manager.
- Refactored BoardScreen navigation to utilize the new provider structure.

lib/core/routes/app_routes.dart

@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import 'package:tm_app/views/board/board_screen.dart';
+import 'package:tm_app/views/board/pages/board_screen.dart';
 import 'package:tm_app/views/completion_of_documents/pages/complectopn_of_documents_screen.dart';
 import 'package:tm_app/views/detail/pages/detail_screen.dart';
 import 'package:tm_app/views/forget_password_create/pages/forgot_password_create_screen.dart';
@@ -18,6 +18,7 @@ import '../../views/profile/pages/profile_screen.dart';
 import '../../views/splash/pages/splash_screen.dart';
 import '../../views/tenders/pages/tenders_screen.dart';
 import '../../views/your_tenders/pages/your_tenders_screen.dart';
+import '../providers/board_provider.dart';
 import '../providers/final_completion_provider.dart';
 import '../providers/forgot_password_provider.dart';
 import '../providers/home_provider.dart';
@@ -272,7 +273,7 @@ class BoardRouteData extends GoRouteData with _$BoardRouteData {
 
   @override
   Widget build(BuildContext context, GoRouterState state) {
-    return const BoardScreen();
+    return boardProvider(child: const BoardScreen());
   }
 }