修正删除快捷键页面测试

从仍挂载的窗口目标触发全局删除快捷键

按全部同名节点消失断言删除结果

apps/ai-game-creator-shell/tests/uiEditorPage.test.ts

@@ -647,9 +647,11 @@ describe('UiEditorPage', () => {
     });
     fireEvent.click(screen.getByText('page-child'));
     await screen.findByDisplayValue('page-child');
-    fireEvent.keyDown(child, { key: 'Delete' });
+    fireEvent.keyDown(window, { key: 'Delete' });
 
-    await waitFor(() => expect(screen.queryByText('page-child')).toBeNull());
+    await waitFor(() =>
+      expect(screen.queryAllByText('page-child')).toHaveLength(0),
+    );
   });
 
   it('does not delete a selected node when Delete originates inside a dialog', async () => {