Add liked tenders functionality to HomeRepository and ViewModel

- Integrated LikedTendersService into HomeRepository to fetch the count of user-liked tenders.
- Updated HomeViewModel to load and manage the userLikedTendersCount.
- Adjusted UI components across home pages to display the liked tenders count.
- Refactored date handling in date_utils.dart to improve timestamp parsing and validation.
- Enhanced unit tests for date utilities to cover new edge cases.

lib/view_models/home_view_model.dart

@@ -1,13 +1,11 @@
 import 'package:flutter/material.dart';
 import 'package:tm_app/core/utils/result.dart';
-import 'package:tm_app/data/services/model/feedback_stats/feedback_stats.dart';
 import 'package:tm_app/data/services/model/recommended_tenders_response/recommended_tenders_response.dart';
 import 'package:tm_app/data/services/model/tender_approvals_response/tender_approvals_response.dart';
 import 'package:tm_app/data/services/model/tender_approvals_stats_response/tender_approvals_stats_response.dart';
 import 'package:tm_app/data/services/model/tender_data/tender_data.dart';
 
 import '../data/repositories/home_repository.dart';
-import '../data/services/model/feedback_stats_response/feedback_stat_response.dart';
 import '../data/services/model/home/home_response/home_response_model.dart';
 import '../data/services/model/request_models/get_tenders_request_model/get_tenders_request_model.dart';
 import '../data/services/notification_state_service.dart';
@@ -46,7 +44,7 @@ class HomeViewModel with ChangeNotifier {
 
   RecommendedTendersResponse? _recommendedTendersResponse;
   TenderApprovalsStatsResponse? tenderApprovalsStateResponse;
-  FeedbackStats? feedbackStats;
+  int userLikedTendersCount = 0;
   final List<TenderData> _tenders = [];
   final int _pageSize = 10;
   int _currentPage = 0;
@@ -65,11 +63,19 @@ class HomeViewModel with ChangeNotifier {
 
   void init() async {
     _isLoading = true;
+    _errorMessage = null;
+    userLikedTendersCount = 0;
+    _tenders.clear();
+    _currentPage = 0;
+    _hasMore = true;
+    _isRecommendedMode = false;
+    data = null;
+    tenderApprovalsStateResponse = null;
     notifyListeners();
 
     await getApprovedStates();
     await getYourTenders(reset: true);
-    await getFeedbackStats();
+    await loadUserLikedTendersCount();
 
     if (_errorMessage != null) {
       _isLoading = false;
@@ -192,15 +198,15 @@ class HomeViewModel with ChangeNotifier {
     notifyListeners();
   }
 
-  Future<void> getFeedbackStats() async {
-    final result = await _homeRepository.getFeedbackStats();
+  Future<void> loadUserLikedTendersCount() async {
+    final result = await _homeRepository.getUserLikedTendersCount();
 
     switch (result) {
-      case Ok<FeedbackStatResponse>():
-        feedbackStats = result.value.data;
+      case Ok<int>():
+        userLikedTendersCount = result.value;
         break;
-      case Error<FeedbackStatResponse>():
-        _errorMessage = result.error.toString();
+      case Error<int>():
+        userLikedTendersCount = 0;
         break;
     }
     notifyListeners();