chore(version): update app version to 1.3.5+85 and improve test coverage reporting in CI

test/core/mixins/registration_date_cache_mixin_test.dart

@@ -0,0 +1,53 @@
+import 'package:eatvio_app/core/mixins/registration_date_cache_mixin.dart';
+import 'package:eatvio_app/core/prefs.dart';
+import 'package:eatvio_app/core/prefs_keys.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mockito/annotations.dart';
+import 'package:mockito/mockito.dart';
+
+import 'registration_date_cache_mixin_test.mocks.dart';
+
+@GenerateMocks([Prefs])
+void main() {
+  group('RegistrationDateCacheMixin', () {
+    late MockPrefs mockPrefs;
+    late TestClassWithMixin testClass;
+
+    setUp(() {
+      mockPrefs = MockPrefs();
+      testClass = TestClassWithMixin();
+      testClass.prefs = mockPrefs;
+    });
+
+    test('caches registration date', () async {
+      final date = DateTime(2024, 1, 15);
+      final expectedMilliseconds = date.millisecondsSinceEpoch;
+
+      when(mockPrefs.setInt(PrefsKeys.registrationDate, expectedMilliseconds))
+          .thenAnswer((_) async => Future.value());
+
+      await testClass.cacheRegistrationDate(date);
+
+      verify(mockPrefs.setInt(PrefsKeys.registrationDate, expectedMilliseconds))
+          .called(1);
+    });
+
+    test('caches different dates correctly', () async {
+      final date1 = DateTime(2024, 1, 15);
+      final date2 = DateTime(2024, 2, 20);
+
+      when(mockPrefs.setInt(any, any))
+          .thenAnswer((_) async => Future.value());
+
+      await testClass.cacheRegistrationDate(date1);
+      await testClass.cacheRegistrationDate(date2);
+
+      verify(mockPrefs.setInt(PrefsKeys.registrationDate, date1.millisecondsSinceEpoch))
+          .called(1);
+      verify(mockPrefs.setInt(PrefsKeys.registrationDate, date2.millisecondsSinceEpoch))
+          .called(1);
+    });
+  });
+}
+
+class TestClassWithMixin with RegistrationDateCacheMixin {}