补充 Delete 快捷键页面验收测试

验证页面选中节点可通过 Delete 删除

覆盖真实树面板选择与删除后的渲染结果

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

@@ -490,6 +490,30 @@ describe('UiEditorPage', () => {
     expect(result.current.history.canUndo).toBe(true);
   });
 
+  it('deletes the selected node from the page with Delete', async () => {
+    const state = stateWithPages(['page']);
+    state.ui_trees[0]!.root.children = [node('page-child')];
+    const stateStore: IUiDesignStateStore = {
+      load: vi.fn().mockResolvedValue({ revision: 0, state }),
+      save: vi.fn(),
+      generateCode: vi.fn().mockRejectedValue(new Error('测试未配置代码生成')),
+    };
+
+    render(
+      createElement(UiEditorPage, {
+        projectPath: '/tmp/ui-editor-delete-keyboard',
+        resourceId: 'ui-resource',
+        stateStore,
+      }),
+    );
+
+    const child = await screen.findByText('page-child');
+    fireEvent.click(child);
+    fireEvent.keyDown(window, { key: 'Delete' });
+
+    await waitFor(() => expect(screen.queryByText('page-child')).toBeNull());
+  });
+
   it('keeps Inspector status highlighting separate from node navigation', async () => {
     const { result } = await renderLoadedSession(stateWithPages(['page']));
     const rootId = 'page-root';