refactor: use GET tenders/recommend and improve tender title UX

Load the Recommended tab from GET /api/v1/tenders/recommend instead of the
AI POST flow with 503 fallback. Fix notification pagination offset, make
tender titles selectable across list and detail views, and ignore .cursor.

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

test/view_models/ai_recommendations_view_model_test.dart

@@ -1,6 +1,5 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-import 'package:tm_app/core/network/app_exceptions.dart';
 import 'package:tm_app/core/network/network_manager.dart';
 import 'package:tm_app/core/utils/result.dart';
 import 'package:tm_app/data/repositories/company_ai_repository.dart';
@@ -8,79 +7,74 @@ import 'package:tm_app/data/repositories/home_repository.dart';
 import 'package:tm_app/data/services/company_ai_service.dart';
 import 'package:tm_app/data/services/home_service.dart';
 import 'package:tm_app/data/services/liked_tenders_service.dart';
-import 'package:tm_app/data/services/model/recommend_response/recommend_response.dart';
-import 'package:tm_app/data/services/model/recommendation_item/recommendation_item.dart';
 import 'package:tm_app/data/services/model/recommended_tenders_data/recommended_tenders_data.dart';
 import 'package:tm_app/data/services/model/recommended_tenders_response/recommended_tenders_response.dart';
+import 'package:tm_app/data/services/model/tender_data/tender_data.dart';
 import 'package:tm_app/data/services/your_tenders_service.dart';
 import 'package:tm_app/view_models/ai_recommendations_view_model.dart';
 
 void main() {
   group('AiRecommendationsViewModel', () {
-    test('falls back to legacy recommendations on HTTP 503', () async {
+    test('loads recommended tenders from GET /api/v1/tenders/recommend', () async {
       final prefs = await _prefs();
-      final companyRepository = _FakeCompanyAiRepository(
-        prefs,
-        results: [Result.error(ServerException('unavailable', 503))],
-      );
       final homeRepository = _FakeHomeRepository(
         prefs,
-        result: const Result.ok(
+        result: Result.ok(
           RecommendedTendersResponse(
             succes: true,
             message: 'ok',
             error: null,
-            data: RecommendedTendersData(tenders: [], metadata: null),
+            data: RecommendedTendersData(
+              tenders: [_sampleTender(id: 'tender-1', title: 'Bridge repair')],
+              metadata: null,
+            ),
           ),
         ),
       );
       final viewModel = AiRecommendationsViewModel(
-        companyAiRepository: companyRepository,
+        companyAiRepository: _FakeCompanyAiRepository(prefs),
         homeRepository: homeRepository,
       );
 
       await viewModel.loadRecommendations();
 
       expect(viewModel.hasLoaded, isTrue);
-      expect(viewModel.usingFallback, isTrue);
       expect(viewModel.errorMessage, isNull);
       expect(homeRepository.recommendedTendersCalls, 1);
+      expect(viewModel.recommendedTenders.single.id, 'tender-1');
     });
 
     test('keeps failed transient loads retryable for loadIfNeeded', () async {
       final prefs = await _prefs();
-      final companyRepository = _FakeCompanyAiRepository(
+      final homeRepository = _FakeHomeRepository(
         prefs,
         results: [
-          Result.error(FetchDataException('network failed')),
-          const Result.ok(
-            RecommendResponse(
-              data: [
-                RecommendationItem(
-                  rank: '1',
-                  tenderId: 'tender-1',
-                  analysis: 'Strong match',
-                ),
-              ],
-              error: null,
+          Result.error(Exception('network failed')),
+          Result.ok(
+            RecommendedTendersResponse(
+              succes: true,
               message: 'ok',
-              success: true,
+              error: null,
+              data: RecommendedTendersData(
+                tenders: [_sampleTender(id: 'tender-1', title: 'Bridge repair')],
+                metadata: null,
+              ),
             ),
           ),
         ],
       );
       final viewModel = AiRecommendationsViewModel(
-        companyAiRepository: companyRepository,
-        homeRepository: _FakeHomeRepository(prefs),
+        companyAiRepository: _FakeCompanyAiRepository(prefs),
+        homeRepository: homeRepository,
       );
 
       await viewModel.loadRecommendations();
       await viewModel.loadIfNeeded();
 
-      expect(companyRepository.recommendationCalls, 2);
+      expect(homeRepository.recommendedTendersCalls, 2);
       expect(viewModel.hasLoaded, isTrue);
       expect(viewModel.errorMessage, isNull);
-      expect(viewModel.items.single.tenderId, 'tender-1');
+      expect(viewModel.recommendedTenders.single.id, 'tender-1');
     });
 
     test(
@@ -91,16 +85,6 @@ void main() {
           companyAiRepository: _FakeCompanyAiRepository(
             prefs,
             lastOnboardingStartedAt: DateTime.now().millisecondsSinceEpoch,
-            results: [
-              const Result.ok(
-                RecommendResponse(
-                  data: [],
-                  error: null,
-                  message: 'ok',
-                  success: true,
-                ),
-              ),
-            ],
           ),
           homeRepository: _FakeHomeRepository(prefs),
         );
@@ -123,22 +107,11 @@ Future<SharedPreferences> _prefs() async {
 class _FakeCompanyAiRepository extends CompanyAiRepository {
   _FakeCompanyAiRepository(
     SharedPreferences prefs, {
-    required List<Result<RecommendResponse>> results,
     int? lastOnboardingStartedAt,
-  }) : _results = results,
-       _lastOnboardingStartedAt = lastOnboardingStartedAt,
+  }) : _lastOnboardingStartedAt = lastOnboardingStartedAt,
        super(companyAiService: _UnusedCompanyAiService(prefs), prefs: prefs);
 
-  final List<Result<RecommendResponse>> _results;
   final int? _lastOnboardingStartedAt;
-  int recommendationCalls = 0;
-
-  @override
-  Future<Result<RecommendResponse>> getRecommendations() async {
-    final index = recommendationCalls;
-    recommendationCalls += 1;
-    return _results[index];
-  }
 
   @override
   int? lastOnboardingStartedAt() => _lastOnboardingStartedAt;
@@ -147,15 +120,22 @@ class _FakeCompanyAiRepository extends CompanyAiRepository {
 class _FakeHomeRepository extends HomeRepository {
   _FakeHomeRepository(
     SharedPreferences prefs, {
-    this.result = const Result.ok(
-      RecommendedTendersResponse(
-        succes: true,
-        message: 'ok',
-        error: null,
-        data: RecommendedTendersData(tenders: [], metadata: null),
-      ),
-    ),
-  }) : super(
+    List<Result<RecommendedTendersResponse>>? results,
+    Result<RecommendedTendersResponse>? result,
+  }) : _results =
+           results ??
+           [
+             result ??
+                 const Result.ok(
+                   RecommendedTendersResponse(
+                     succes: true,
+                     message: 'ok',
+                     error: null,
+                     data: RecommendedTendersData(tenders: [], metadata: null),
+                   ),
+                 ),
+           ],
+       super(
          homeService: HomeService(networkManager: NetworkManager(prefs)),
          yourTendersService: YourTendersService(
            networkManager: NetworkManager(prefs),
@@ -165,7 +145,7 @@ class _FakeHomeRepository extends HomeRepository {
          ),
        );
 
-  final Result<RecommendedTendersResponse> result;
+  final List<Result<RecommendedTendersResponse>> _results;
   int recommendedTendersCalls = 0;
 
   @override
@@ -173,8 +153,9 @@ class _FakeHomeRepository extends HomeRepository {
     required int limit,
     required int offset,
   }) async {
+    final index = recommendedTendersCalls;
     recommendedTendersCalls += 1;
-    return result;
+    return _results[index];
   }
 }
 
@@ -182,3 +163,36 @@ class _UnusedCompanyAiService extends CompanyAiService {
   _UnusedCompanyAiService(SharedPreferences prefs)
     : super(networkManager: NetworkManager(prefs));
 }
+
+TenderData _sampleTender({required String id, required String title}) {
+  return TenderData(
+    success: null,
+    message: null,
+    id: id,
+    tenderId: id,
+    noticePublicationId: null,
+    noticeTypeCode: null,
+    formType: null,
+    noticeLanguageCode: null,
+    issueDate: null,
+    issueTime: null,
+    publicationDate: null,
+    title: title,
+    description: null,
+    procurementTypeCode: null,
+    procedureCode: null,
+    estimatedValue: null,
+    currency: null,
+    duration: null,
+    tenderDeadline: null,
+    submissionDeadline: null,
+    applicationDeadline: null,
+    submissionUrl: null,
+    countryCode: null,
+    durationUnit: null,
+    buyerOrganization: null,
+    lots: null,
+    officialLanguages: null,
+    status: null,
+  );
+}