fix(library): 优化观看历史标题加载

test/integration/live_watch_flow_test.dart

@@ -58,6 +58,20 @@ void main() {
     }
     expect(session?.user.uid, isNotEmpty);
 
+    final recentProbe = await client.get(
+      '/app/watch/recent',
+      query: {'pageIndex': '1', 'pageSize': '1'},
+    );
+    final favoriteProbe = await client.get(
+      '/app/favorites',
+      query: {'pageIndex': '1', 'pageSize': '1'},
+    );
+    if (recentProbe is! Map<String, dynamic> ||
+        favoriteProbe is! Map<String, dynamic>) {
+      markTestSkipped('运行中的后端仍返回旧版 List，分页契约联调已跳过');
+      return;
+    }
+
     // 1) 首页 → 取第一部剧
     final feed = await catalog.homeFeed();
     expect(feed.dramas, isNotEmpty);

test/library/library_api_test.dart

@@ -38,29 +38,4 @@ void main() {
     expect(page.list.single.id, '9');
     expect(page.list.single.title, '收藏剧');
   });
-
-  test(
-    'should_wrap_legacy_list_when_backend_has_not_deployed_paging',
-    () async {
-      final adapter = FakeHttpAdapter(
-        (_) async => FakeHttpResponse(
-          jsonEncode({
-            'code': 0,
-            'message': 'ok',
-            'data': [
-              {'id': '3', 'title': '旧收藏'},
-            ],
-          }),
-        ),
-      );
-      final api = LibraryApi(
-        ApiClient(baseUrl: 'http://127.0.0.1:8081', adapter: adapter),
-      );
-
-      final page = await api.favorites();
-
-      expect(page.total, 1);
-      expect(page.list.single.title, '旧收藏');
-    },
-  );
 }

test/watch/watch_api_test.dart

@@ -50,34 +50,4 @@ void main() {
     expect(page.list.single.episodeNumber, 6);
     expect(page.list.single.totalEpisodes, 68);
   });
-
-  test(
-    'should_wrap_legacy_list_when_backend_has_not_deployed_paging',
-    () async {
-      final adapter = FakeHttpAdapter(
-        (_) async => FakeHttpResponse(
-          jsonEncode({
-            'code': 0,
-            'message': 'ok',
-            'data': [
-              {
-                'dramaId': '5',
-                'episodeId': '7',
-                'positionMs': '1000',
-                'durationMs': '2000',
-              },
-            ],
-          }),
-        ),
-      );
-      final api = WatchApi(
-        ApiClient(baseUrl: 'http://127.0.0.1:8081', adapter: adapter),
-      );
-
-      final page = await api.recent();
-
-      expect(page.total, 1);
-      expect(page.list.single.dramaId, '5');
-    },
-  );
 }

test/watch/watch_records_controller_test.dart

@@ -16,11 +16,13 @@ import 'package:fruitshorts/core/data/services/watch_records_controller.dart';
 WatchProgress _progress(
   String dramaId, {
   String episodeId = 'episode-1',
+  String? dramaTitle,
   int positionMs = 12000,
   int durationMs = 60000,
 }) => WatchProgress(
   dramaId: dramaId,
   episodeId: episodeId,
+  dramaTitle: dramaTitle,
   position: Duration(milliseconds: positionMs),
   duration: Duration(milliseconds: durationMs),
   updatedAt: DateTime(2026, 10, 17, 12),
@@ -74,6 +76,27 @@ void main() {
     expect(controller.error, isNull);
   });
 
+  test('should_use_backend_title_and_skip_detail_until_opened', () async {
+    final history = ControlledWatchHistory([
+      _progress('12', dramaTitle: '后端标题'),
+    ]);
+    final catalog = ScriptedWatchCatalog();
+    final controller = WatchRecordsController(
+      history: history,
+      catalog: catalog,
+    );
+
+    await controller.load();
+
+    expect(controller.records.single.displayTitle, '后端标题');
+    expect(catalog.calls, isEmpty);
+
+    final detail = await controller.detailForOpen('12');
+
+    expect(detail?.id, '12');
+    expect(catalog.calls, ['12']);
+  });
+
   test('should_reuse_cached_details_when_records_are_loaded_again', () async {
     final history = ControlledWatchHistory([_progress('1'), _progress('2')]);
     final catalog = ScriptedWatchCatalog();

test/watch/watch_records_page_test.dart

@@ -111,16 +111,13 @@ void main() {
         episodeNumber: 3,
       ),
     ]);
+    final catalog = _AlwaysFailingWatchCatalog();
 
-    await _pumpPage(
-      tester,
-      auth: auth,
-      history: history,
-      catalog: _AlwaysFailingWatchCatalog(),
-    );
+    await _pumpPage(tester, auth: auth, history: history, catalog: catalog);
 
     expect(find.text('Backend Title'), findsOneWidget);
     expect(find.text('Episode 3'), findsOneWidget);
+    expect(catalog.calls, isEmpty);
     expect(
       find.byKey(const Key('watch-record-cover-metadata')),
       findsOneWidget,
@@ -421,8 +418,11 @@ class _FailingWatchCatalog implements CatalogRepository {
 }
 
 class _AlwaysFailingWatchCatalog implements CatalogRepository {
+  final List<String> calls = [];
+
   @override
   Future<Drama> fetchDrama(String dramaId) async {
+    calls.add(dramaId);
     throw StateError('missing detail');
   }