feat(ui): 重做三 Tab 首页与发现页

test/discover/home_banner_source_test.dart

@@ -21,7 +21,7 @@ import '../support/widget_player.dart';
 
 void main() {
   testWidgets(
-    'should_render_home_feed_banners_when_discover_banners_are_empty',
+    'should_not_mount_carousel_on_discover_even_when_home_banners_exist',
     (tester) async {
       SharedPreferencesAsyncPlatform.instance =
           InMemorySharedPreferencesAsync.empty();
@@ -43,26 +43,11 @@ void main() {
       await tester.tap(find.byKey(const Key('tab-discover')));
       await tester.pumpAndSettle();
 
-      expect(find.byType(CoverCarousel), findsOneWidget);
-      expect(find.byKey(const Key('carousel-dot-0')), findsOneWidget);
-      expect(find.byKey(const Key('carousel-dot-1')), findsOneWidget);
-      expect(
-        find.descendant(
-          of: find.byType(CoverCarousel),
-          matching: find.text('The Signal'),
-        ),
-        findsOneWidget,
-      );
-
-      await tester.pump(const Duration(milliseconds: 4500));
-      await tester.pump(const Duration(milliseconds: 500));
-      expect(
-        find.descendant(
-          of: find.byType(CoverCarousel),
-          matching: find.text('City Lights & Velvet Nights'),
-        ),
-        findsOneWidget,
-      );
+      expect(find.byType(CoverCarousel), findsNothing);
+      expect(find.byKey(const Key('discover-search')), findsOneWidget);
+      expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
+      expect(find.byKey(const Key('discover-quick-filter')), findsOneWidget);
+      expect(find.text('The Signal'), findsWidgets);
       await tester.pumpWidget(const SizedBox.shrink());
     },
   );