feat(ui): 新增登录入口与我的页预览

test/watch/watch_history_provider_test.dart

@@ -42,6 +42,8 @@ void main() {
     await tester.pumpAndSettle();
     await tester.tap(find.byKey(const Key('tab-my')));
     await tester.pumpAndSettle();
+    await tester.drag(find.byType(ListView), const Offset(0, -520));
+    await tester.pumpAndSettle();
     await tester.tap(find.text('Watch History'));
     await tester.pumpAndSettle();