fix: 完善交互、知识库目录与 Windows 运行库提示

tests/component/ai-search-cache-consent.test.tsx

@@ -376,6 +376,56 @@ describe('AISearchWorkspace cache privacy boundary', () => {
     expect(api.runAiSearch).not.toHaveBeenCalled()
   })
 
+  it('submits with Enter and keeps Shift+Enter available for a new line', async () => {
+    api.getAiSearchProviderStatus.mockResolvedValue({ configured: true, requiresConsent: false })
+    api.runAiSearch.mockResolvedValue({
+      requestId: 'enter-submit',
+      status: 'completed',
+      answer: 'answer',
+      plan: { intent: 'global_topic_search' },
+      knowledge: { indexedMessageCount: 1, indexedChunkCount: 1, totalMessages: 1 },
+      candidateEvidenceCount: 0,
+      contextEvidenceCount: 0,
+      evidence: [],
+      aggregation: {
+        messageCount: 0,
+        peopleCount: 0,
+        conversationCount: 0,
+        people: [],
+        conversations: []
+      },
+      agent: { mode: 'agent', toolCalls: 1, trace: [] },
+      timings: {},
+      elapsedMs: 1
+    } as never)
+    render(
+      <AISearchWorkspace
+        contacts={[]}
+        selectedContact={null}
+        dbReady
+        aiModelConfig={{
+          configured: true,
+          providerName: 'Local Provider',
+          model: 'model',
+          modelName: 'Model',
+          status: 'connected'
+        }}
+        onSelectContact={vi.fn()}
+        onOpenEvidence={vi.fn()}
+        onOpenAISettings={vi.fn()}
+        onNotice={vi.fn()}
+      />
+    )
+
+    const input = screen.getByRole('textbox')
+    await userEvent.type(input, 'Enter submit question')
+    fireEvent.keyDown(input, { key: 'Enter', shiftKey: true })
+    expect(api.runAiSearch).not.toHaveBeenCalled()
+
+    fireEvent.keyDown(input, { key: 'Enter' })
+    await waitFor(() => expect(api.runAiSearch).toHaveBeenCalledOnce())
+  })
+
   it('cancels an active analysis and ignores its late result', async () => {
     api.getAiSearchProviderStatus.mockResolvedValue({ configured: true, requiresConsent: false })
     let resolveSearch: ((value: unknown) => void) | undefined

tests/component/cache-cleanup.test.tsx

@@ -0,0 +1,42 @@
+import { render, screen, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { CacheCleanupPage } from '../../src/renderer/src/features/settings/pages/CacheCleanupPage'
+
+const api = {
+  getCacheSummary: vi.fn(),
+  clearCache: vi.fn(),
+  openKnowledgeDirectory: vi.fn()
+}
+
+describe('CacheCleanupPage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    Object.defineProperty(window, 'api', { configurable: true, value: api })
+    api.getCacheSummary.mockResolvedValue({
+      items: [
+        {
+          id: 'knowledge',
+          label: '本地知识库索引',
+          description: '问一问微信使用的本地检索索引',
+          sizeBytes: 1024,
+          fileCount: 1
+        }
+      ],
+      totalBytes: 1024,
+      updatedAt: Date.now()
+    })
+    api.openKnowledgeDirectory.mockResolvedValue({ success: true })
+  })
+
+  it('opens the real knowledge directory without clearing it', async () => {
+    const onNotice = vi.fn()
+    render(<CacheCleanupPage onNotice={onNotice} />)
+
+    await userEvent.click(await screen.findByRole('button', { name: '打开文件夹' }))
+
+    await waitFor(() => expect(api.openKnowledgeDirectory).toHaveBeenCalledOnce())
+    expect(api.clearCache).not.toHaveBeenCalled()
+    expect(onNotice).toHaveBeenCalledWith('已打开知识库文件夹')
+  })
+})

tests/component/database-connection.test.tsx

@@ -180,4 +180,16 @@ describe('DatabaseConnectionPage', () => {
     expect(screen.getByRole('button', { name: '返回上一步' })).toBeEnabled()
     expect(screen.getByRole('button', { name: '取消并重新检查' })).toBeEnabled()
   })
+  it('provides the official Visual C++ runtime download on Windows', () => {
+    renderPage({
+      status: '当前 Windows 缺少 Microsoft Visual C++ 运行库',
+      statusKind: 'error'
+    })
+
+    expect(screen.getByRole('link', { name: '下载运行库' })).toHaveAttribute(
+      'href',
+      'https://aka.ms/vc14/vc_redist.x64.exe'
+    )
+  })
+
 })

tests/integration/preload-contract.test.ts

@@ -62,6 +62,8 @@ describe('preload IPC contract', () => {
     expect(invoke).toHaveBeenLastCalledWith('knowledge:startIndex')
     await api.clearCache('knowledge')
     expect(invoke).toHaveBeenLastCalledWith('cache:clear', 'knowledge')
+    await api.openKnowledgeDirectory()
+    expect(invoke).toHaveBeenLastCalledWith('cache:openKnowledgeDirectory')
 
     await api.getImage('fixture-md5', 'fixture.dat', 'fixture-session', {
       force: true,

tests/unit/windows-runtime.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest'
+import {
+  isWindowsVcRuntimeMissingError,
+  WINDOWS_VC_RUNTIME_DOWNLOAD_URL,
+  WINDOWS_VC_RUNTIME_ERROR_MESSAGE
+} from '../../src/shared/windows-runtime'
+
+describe('Windows Visual C++ runtime diagnostics', () => {
+  it.each([
+    'VCRUNTIME140_1.dll was not found',
+    'MSVCP140.dll is missing',
+    'The specified module could not be found',
+    'Win32 error 126',
+    '找不到指定的模块'
+  ])('recognizes a Windows native dependency load failure: %s', (detail) => {
+    expect(isWindowsVcRuntimeMissingError(detail, 'win32')).toBe(true)
+  })
+
+  it('does not relabel unrelated or non-Windows failures', () => {
+    expect(isWindowsVcRuntimeMissingError('invalid database key', 'win32')).toBe(false)
+    expect(isWindowsVcRuntimeMissingError('VCRUNTIME140.dll was not found', 'darwin')).toBe(false)
+  })
+
+  it('keeps the official download URL in the actionable error message', () => {
+    expect(WINDOWS_VC_RUNTIME_ERROR_MESSAGE).toContain(WINDOWS_VC_RUNTIME_DOWNLOAD_URL)
+  })
+})