fix(plugins): close R2 workspace gaps

tests/unit/plugins-page.test.tsx

@@ -76,6 +76,7 @@ const officialItem: PluginWorkspaceItem = {
   version: '1.0.0',
   delivery: 'system_included',
   projectState: 'enabled',
+  projectPolicyStatus: 'current',
   localEnabled: null,
   assignedAgentIds: ['agent-a'],
   assignedAgentNames: ['小明'],
@@ -138,6 +139,7 @@ const localItem: PluginWorkspaceItem = {
   version: '1.2.3',
   delivery: 'local_installed',
   projectState: 'not_applicable',
+  projectPolicyStatus: null,
   localEnabled: true,
   assignedAgentIds: [],
   assignedAgentNames: [],
@@ -289,6 +291,63 @@ describe('PluginsView', () => {
     expect(screen.getByText('当前没有打开的项目，已显示全部插件。')).toBeVisible();
   });
 
+  it('keeps old device and project rows visible and labels each affected snapshot cached after refresh errors', async () => {
+    const activeProject = {
+      id: 'project-a',
+      name: 'Project A',
+      createdAt: '2026-09-03T00:00:00Z',
+      updatedAt: '2026-09-03T00:00:00Z',
+      lastOpenedAt: '2026-09-03T00:00:00Z',
+    };
+    useAuthStore.setState({ user: null });
+    codingWorkspaceStore.setState({
+      activeProjectId: activeProject.id,
+      activeProject,
+      config: null,
+      loadState: 'ready',
+    });
+    codingPluginsStore.setState({
+      projectId: activeProject.id,
+      projection: {
+        schemaVersion: 1,
+        project: { localProjectId: activeProject.id, durableProjectId: 'durable-a' },
+        policyStatus: 'current',
+        unknownPluginIds: ['makelore.retained'],
+        items: [projectPlugin],
+      },
+      loadState: 'error',
+      error: 'project refresh failed',
+    });
+    devicePackageStore.setState({
+      index: { schemaVersion: 1, generation: 8, packages: [localItem.local!] },
+      state: 'error',
+      error: 'device refresh failed',
+    });
+    pluginMarketplaceStore.setState({
+      accountKey: null,
+      catalog: null,
+      catalogState: 'ready',
+      catalogError: null,
+      library: null,
+      libraryState: 'idle',
+      libraryError: null,
+      installations: {},
+      details: {},
+      detailState: {},
+    });
+    vi.spyOn(pluginMarketplaceStore.getState(), 'loadCatalog').mockResolvedValue(undefined);
+    vi.spyOn(devicePackageStore.getState(), 'load').mockResolvedValue(undefined);
+    vi.spyOn(codingPluginsStore.getState(), 'load').mockResolvedValue(undefined);
+
+    render(<MemoryRouter initialEntries={['/plugins?scope=project&source=all&state=all']}><Plugins /></MemoryRouter>);
+
+    for (const name of ['开发数据服务', 'Pi Web Search', 'makelore.retained']) {
+      const heading = await screen.findByRole('heading', { name });
+      expect(heading.closest('article')).toHaveTextContent('缓存');
+    }
+    expect(screen.getAllByRole('alert')).toHaveLength(2);
+  });
+
   it('renders the unified workspace and exposes URL-backed filter changes', () => {
     const view = props();
     view.sourceErrors = [
@@ -434,6 +493,24 @@ describe('PluginsView', () => {
     expect(dialog).toHaveTextContent('价格版本：pricing-7');
   });
 
+  it.each([
+    ['stale', '当前项目策略使用缓存，所示能力与价格可能不是最新状态。'],
+    ['unavailable', '当前项目策略不可用，无法确认最新能力与价格。'],
+  ] as const)('shows %s project policy status beside policy-owned capability and pricing', (projectPolicyStatus, copy) => {
+    const policyItem: PluginWorkspaceItem = { ...officialItem, projectPolicyStatus };
+    render(<MemoryRouter><PluginsView {...props(policyItem)} /></MemoryRouter>);
+
+    expect(screen.getByRole('dialog', { name: '开发数据服务' })).toHaveTextContent(copy);
+  });
+
+  it('does not mark current project policy as stale or unavailable', () => {
+    render(<MemoryRouter><PluginsView {...props(officialItem)} /></MemoryRouter>);
+
+    const dialog = screen.getByRole('dialog', { name: '开发数据服务' });
+    expect(dialog).not.toHaveTextContent('当前项目策略使用缓存');
+    expect(dialog).not.toHaveTextContent('当前项目策略不可用');
+  });
+
   it('deduplicates operation identity while preferring the current project policy projection', () => {
     const projectPolicy = {
       ...projectPlugin,