复用项目页错误提示组件

项目页读取失败提示改为复用 PlatformStatusMessage

删除项目页局部错误提示视觉样式

补充项目页错误状态测试和 TRACKING 记录

src/components/project/ProjectGalleryView.test.tsx

@@ -67,6 +67,18 @@ describe('ProjectGalleryView', () => {
     expect(onOpenProject).toHaveBeenCalledWith('editor-project-1');
   });
 
+  it('renders project loading errors through the shared status message', async () => {
+    listEditorProjectsMock.mockRejectedValueOnce(new Error('读取项目失败'));
+
+    render(<ProjectGalleryView onOpenProject={vi.fn()} />);
+
+    const alert = await screen.findByRole('alert');
+
+    expect(alert.textContent).toContain('读取项目失败');
+    expect(alert.className).toContain('platform-status-message');
+    expect(alert.className).toContain('project-gallery__error');
+  });
+
   it('renames and deletes a project from the hover menu', async () => {
     listEditorProjectsMock.mockResolvedValueOnce(projectItems);
     renameEditorProjectMock.mockResolvedValueOnce({