feat(flutter): 统一文字下拉刷新

test/library/favorites_page_test.dart

@@ -11,6 +11,7 @@ import 'package:fruitshorts/core/data/services/auth_session_store.dart';
 import 'package:fruitshorts/core/data/services/favorite_controller.dart';
 import 'package:fruitshorts/core/platform/haptics.dart';
 import 'package:fruitshorts/core/theme/app_colors.dart';
+import 'package:fruitshorts/core/widgets/app_pull_to_refresh.dart';
 import 'package:fruitshorts/core/widgets/empty_state.dart';
 import 'package:fruitshorts/l10n/app_localizations.dart';
 import 'package:fruitshorts/pages/favorites/favorites_page.dart';
@@ -73,12 +74,11 @@ void main() {
     );
     expect(find.byIcon(Icons.star_rounded), findsNWidgets(2));
     expect(find.byIcon(Icons.favorite_rounded), findsNothing);
-    final refresh = tester.widget<RefreshIndicator>(
-      find.byType(RefreshIndicator),
-    );
-    expect(refresh.color, AppColors.blue);
-    expect(refresh.backgroundColor, AppColors.card);
-    expect(refresh.strokeWidth, 2);
+    expect(find.byType(AppPullToRefresh), findsOneWidget);
+    await tester.drag(find.byType(ListView), const Offset(0, 120));
+    await tester.pump();
+    expect(find.text('Refreshing…'), findsOneWidget);
+    await tester.pumpAndSettle();
 
     await tester.tap(find.byKey(const Key('favorite-remove-signal')));
     await tester.pumpAndSettle();