fix(player): 收藏与评论数实时刷新

test/drama_detail/drama_detail_logic_test.dart

@@ -9,12 +9,16 @@ import 'package:fruitshorts/pages/drama_detail/drama_detail_logic.dart';
 import '../support/fake_watch_history.dart';
 
 /// 详情页逻辑依赖：票据仓库 + 收藏控制器（测试里都是内存实现）。
-DramaDetailLogic _logic(Drama drama, FakeWatchHistory history) =>
+DramaDetailLogic _logic(
+  Drama drama,
+  FakeWatchHistory history, {
+  FavoriteController? favorites,
+}) =>
     DramaDetailLogic(
       drama: drama,
       history: history,
       playback: FakePlaybackRepository(),
-      favorites: FavoriteController(InMemoryFavoriteRepository()),
+      favorites: favorites ?? FavoriteController(InMemoryFavoriteRepository()),
     );
 
 Drama _card(String id) => Drama(
@@ -98,4 +102,55 @@ void main() {
     expect(logic.drama.episodes, hasLength(3));
     logic.dispose();
   });
+
+  test('should_adjust_favorite_count_only_after_successful_changes', () async {
+    final repository = InMemoryFavoriteRepository(cards: [_favoriteDrama]);
+    final favorites = FavoriteController(repository);
+    await favorites.load();
+    final logic = _logic(
+      _favoriteDrama,
+      FakeWatchHistory(),
+      favorites: favorites,
+    );
+
+    expect(logic.adjustedFavoriteCount, 2);
+    expect(await logic.toggleFavorite(), isTrue);
+    expect(logic.adjustedFavoriteCount, 3);
+
+    repository.failToggle = true;
+    expect(await logic.toggleFavorite(), isFalse);
+    expect(logic.adjustedFavoriteCount, 3);
+
+    repository.failToggle = false;
+    expect(await logic.toggleFavorite(), isTrue);
+    expect(logic.adjustedFavoriteCount, 2);
+    logic.dispose();
+  });
+
+  test('should_decrement_favorite_count_from_saved_state', () async {
+    final repository = InMemoryFavoriteRepository(
+      saved: {'favorite-detail'},
+      cards: [_favoriteDrama],
+    );
+    final favorites = FavoriteController(repository);
+    await favorites.load();
+    final logic = _logic(
+      _favoriteDrama,
+      FakeWatchHistory(),
+      favorites: favorites,
+    );
+
+    expect(await logic.toggleFavorite(), isTrue);
+    expect(logic.adjustedFavoriteCount, 1);
+    logic.dispose();
+  });
 }
+
+const _favoriteDrama = Drama(
+  id: 'favorite-detail',
+  title: 'Favorite detail',
+  synopsis: 'favorite count',
+  posterUrl: '/files/favorite-detail.jpg',
+  favoriteCount: 2,
+  detailLoaded: true,
+);

test/drama_detail/drama_detail_view_test.dart

@@ -140,11 +140,23 @@ void main() {
 
     expect(decoration().color, AppColors.card);
     expect((decoration().border! as Border).top.color, AppColors.blue);
+    expect(
+      tester
+          .widget<Text>(find.byKey(const Key('detail-stat-favorite-value')))
+          .data,
+      '3200 Favorite',
+    );
 
     await tester.tap(find.byKey(const Key('detail-favorite')));
     await tester.pumpAndSettle();
 
     expect(decoration().color, AppColors.blue);
+    expect(
+      tester
+          .widget<Text>(find.byKey(const Key('detail-stat-favorite-value')))
+          .data,
+      '3201 Favorite',
+    );
     expect(
       find.descendant(
         of: find.byKey(const Key('detail-favorite')),
@@ -152,6 +164,16 @@ void main() {
       ),
       findsOneWidget,
     );
+
+    await tester.tap(find.byKey(const Key('detail-favorite')));
+    await tester.pumpAndSettle();
+
+    expect(
+      tester
+          .widget<Text>(find.byKey(const Key('detail-stat-favorite-value')))
+          .data,
+      '3200 Favorite',
+    );
   });
 
   testWidgets('should_expand_synopsis_when_it_exceeds_three_lines', (