feat: 开屏后直接展示首页骨架

test/home/home_logic_test.dart

@@ -23,15 +23,17 @@ void main() {
   test('should_make_first_catalog_entry_current_when_catalog_loads', () {
     final logic = HomeLogic(dramas);
 
-    expect(logic.currentDrama.id, 'signal');
+    expect(logic.currentDrama?.id, 'signal');
     expect(logic.tab, 0);
     expect(logic.drawerOpen, isFalse);
     expect(logic.videoImmersive, isFalse);
     logic.dispose();
   });
 
-  test('should_not_build_shell_when_catalog_is_empty', () {
-    expect(() => HomeLogic(const []), throwsStateError);
+  test('should_allow_empty_catalog_for_startup_skeleton', () {
+    final logic = HomeLogic(const []);
+    expect(logic.currentDrama, isNull);
+    logic.dispose();
   });
 
   test('should_not_raise_request_counter_when_only_tab_switches', () {
@@ -109,7 +111,7 @@ void main() {
     final logic = HomeLogic(dramas);
 
     logic.onDramaChanged(dramas[1]);
-    expect(logic.currentDrama.id, 'city');
+    expect(logic.currentDrama?.id, 'city');
 
     logic.onImmersiveChanged(true);
     expect(logic.videoImmersive, isTrue);
@@ -143,7 +145,7 @@ void main() {
 
     expect(immediateNotifications, 0);
     expect(tester.takeException(), isNull);
-    expect(logic.currentDrama.id, 'city');
+    expect(logic.currentDrama?.id, 'city');
     await tester.pump();
     expect(notifications, 1);
     expect(tester.takeException(), isNull);