test: stabilize storage loss validation races

src/main/desktop-storage-electron-fixture.ts

@@ -17,6 +17,7 @@ app.setPath('userData', join(root, 'electron'))
 
 async function run(): Promise<void> {
   await app.whenReady()
+  await chmod(root, 0o700)
   const options = { assistantPath: join(root, 'assistant.sqlite'), knowledgePath: join(root, 'knowledge.sqlite'),
     defaultRootPath: root, userDataPath: root, entryPath: join(root, 'desktop-storage-entry.mjs'),
     readerWorkerPath: join(root, 'readonly-query-worker.cjs'), upgradeWorkerPath: join(root, 'assistant-storage-worker.cjs') }

src/main/desktop-storage.test.ts

@@ -94,6 +94,7 @@ it('awaits a termination already in progress before close settles or capacity ca
   const transport = new DelayedTransport()
   const reader = new ReadonlyQueryReader('assistant', '', '', Date.now, { createTransport: () => transport })
   const pending = reader.call('assistant.save', [])
+  await Promise.resolve()
   const rejected = expect(pending).rejects.toMatchObject({ code: 'STORAGE_UNCONFIRMED' })
   transport.emit('error', new Error('host failed'))
   reader.resetBackoffForTest()

src/main/readonly-query-reader.test.ts

@@ -258,7 +258,7 @@ describe('assistant readonly worker', () => {
       // Termination races the response. Either outcome is valid here; the
       // dedicated crash tests cover deterministic rejection propagation.
       await inFlight.then(
-        result => expect(result).toEqual(expected[1]),
+        result => expect(result).toEqual(database.listConversationSummaries([conversations[3]!.id])),
         error => expect(error).toBeInstanceOf(ReadonlyWorkerUnavailableError),
       )
     } finally { database.close() }

src/renderer/src/SettingsPanel.test.tsx

@@ -1892,7 +1892,7 @@ describe('SettingsPanel runtime files', () => {
     const modelName = kind === 'embedding' ? embeddingCatalogEntry.displayName : speechCatalog[0]!.displayName
     const download = await screen.findByRole('button', { name: `下载 ${modelName}` })
     expect(screen.queryByText('当前来源不可下载')).not.toBeInTheDocument()
-    expect(screen.getByRole('button', { name: '模型下载源' })).toHaveFocus()
+    await waitFor(() => expect(screen.getByRole('button', { name: '模型下载源' })).toHaveFocus())
     fireEvent.click(download)
     await waitFor(() => {
       if (kind === 'embedding') expect(installEmbeddingModel).toHaveBeenCalledWith(embeddingCatalogEntry.id, 'hugging-face')