Enhance authentication flow and user role management

- Updated AuthViewModel to hydrate user data from storage on initialization.
- Added method to AuthRepository for retrieving stored customer data.
- Enhanced AuthService to save and retrieve customer data from SharedPreferences.
- Refactored UI components to use context.watch for user role updates in MeetingTimeDialog, TenderDetailActions, and TendersPage.
- Improved navigation logic in final completion pages to handle user interactions more effectively.

lib/views/final_completion_of_documents/pages/desktop_final_completion_of_documents_page.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
 import 'package:tm_app/core/theme/colors.dart';
 import 'package:tm_app/core/utils/size_config.dart';
@@ -50,7 +51,9 @@ class DesktopFinalCompletionOfDocumentsPage extends StatelessWidget {
                                 children: [
                                   BaseButton(
                                     isEnabled: true,
-                                    onPressed: () {},
+                                    onPressed: () {
+                                      context.pop();
+                                    },
                                     width: 176,
                                     backgroundColor: AppColors.primary10,
                                     textColor: AppColors.mainBlue,

lib/views/final_completion_of_documents/pages/tablet_final_completion_of_documents_page.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
 import 'package:tm_app/core/theme/colors.dart';
 import 'package:tm_app/core/utils/size_config.dart';
@@ -61,7 +62,9 @@ class TabletFinalCompletionOfDocumentsPage extends StatelessWidget {
                                 children: [
                                   BaseButton(
                                     isEnabled: true,
-                                    onPressed: () {},
+                                    onPressed: () {
+                                      context.pop();
+                                    },
                                     width: 176.0.w(),
                                     backgroundColor: AppColors.primary10,
                                     textColor: AppColors.mainBlue,