fix: 完善交互、知识库目录与 Windows 运行库提示

src/main/index.ts

@@ -97,7 +97,7 @@ import { agentHubService } from './services/agent-hub-service'
 import { appLogger } from './app-logger'
 import type { AppLogEntry } from '../shared/app-log'
 import { appUpdateService } from './services/app-update-service'
-import { clearCache, getCacheSummary } from './services/cache-service'
+import { clearCache, getCacheSummary, openKnowledgeDirectory } from './services/cache-service'
 import type { CacheClearScope } from './services/cache-service'
 import { configureRecallArchive, RecallArchiveMonitor } from './services/recall-archive-service'
 import { VideoAssetService } from './video-asset-service'
@@ -109,6 +109,10 @@ import { VoiceBatchService } from './voice-pipeline/voice-batch-service'
 import type { VoiceBatchRequest, VoiceMessageReference } from '../shared/voice-recognition'
 import type { AiSearchPipelineRequest } from '../shared/ai-search'
 import type { KnowledgeSearchIpcRequest, KnowledgeSearchIpcResult } from '../shared/knowledge'
+import {
+  isWindowsVcRuntimeMissingError,
+  WINDOWS_VC_RUNTIME_ERROR_MESSAGE
+} from '../shared/windows-runtime'
 import { KnowledgeSearchService } from './knowledge/knowledge-search-service'
 import { AiSearchPipelineService } from './services/ai-search-pipeline-service'
 
@@ -506,6 +510,13 @@ app.whenReady().then(async () => {
   wcdbBootstrapPromise = bootstrapWcdbNativeAsync().then(() => {
     console.log('[WCDB4] async bootstrap complete')
   })
+  void wcdbBootstrapPromise.catch((error) => {
+    appLogger.write({
+      level: 'error',
+      scope: 'wcdb-bootstrap',
+      message: error instanceof Error ? error.message : String(error)
+    })
+  })
 
   // 设置应用程序用户模型 ID
   electronApp.setAppUserModelId('com.wechatexplorer.app')
@@ -529,6 +540,7 @@ app.whenReady().then(async () => {
   ipcMain.handle('app-update:download', () => appUpdateService.download())
   ipcMain.handle('app-update:install', () => appUpdateService.install())
   ipcMain.handle('cache:getSummary', () => getCacheSummary())
+  ipcMain.handle('cache:openKnowledgeDirectory', () => openKnowledgeDirectory())
   ipcMain.handle('cache:clear', async (_, scope: CacheClearScope) => {
     const allowedScopes: CacheClearScope[] = ['bootstrap', 'electron', 'knowledge', 'all']
     if (!allowedScopes.includes(scope)) return getCacheSummary()
@@ -625,7 +637,16 @@ app.whenReady().then(async () => {
         return { success: true, monitoring }
       } catch (error) {
         console.error('Failed to init DB:', error)
-        return { success: false, error: error instanceof Error ? error.message : String(error) }
+        const detail = error instanceof Error ? error.message : String(error)
+        if (isWindowsVcRuntimeMissingError(detail, process.platform)) {
+          return {
+            success: false,
+            code: 'VC_RUNTIME_MISSING',
+            error: WINDOWS_VC_RUNTIME_ERROR_MESSAGE,
+            monitoring: false
+          }
+        }
+        return { success: false, error: detail }
       } finally {
         dbInitInFlight = null
       }

src/main/services/cache-service.ts

@@ -1,4 +1,4 @@
-import { app, session } from 'electron'
+import { app, session, shell } from 'electron'
 import fs from 'fs-extra'
 import path from 'path'
 import { clearBootstrapCache } from './bootstrap-cache'
@@ -62,7 +62,8 @@ export function getCacheSummary(): CacheSummary {
     {
       id: 'knowledge',
       label: '本地知识库索引',
-      description: '为问问微信建立的所有账号本地检索索引。清理后需手动重新建立，不影响微信原始数据。',
+      description:
+        '为问问微信建立的所有账号本地检索索引。清理后需手动重新建立，不影响微信原始数据。',
       ...knowledge
     }
   ]
@@ -90,3 +91,13 @@ export async function clearCache(
   }
   return getCacheSummary()
 }
+
+export async function openKnowledgeDirectory(): Promise<{ success: boolean; error?: string }> {
+  try {
+    await fs.ensureDir(KNOWLEDGE_CACHE_DIR)
+    const error = await shell.openPath(KNOWLEDGE_CACHE_DIR)
+    return error ? { success: false, error } : { success: true }
+  } catch (error) {
+    return { success: false, error: error instanceof Error ? error.message : String(error) }
+  }
+}

src/main/services/chat-service.ts

@@ -9,6 +9,10 @@ import type {
   DatabaseKeyValidationCode,
   DatabaseKeyValidationResult
 } from '../../shared/database-key'
+import {
+  isWindowsVcRuntimeMissingError,
+  WINDOWS_VC_RUNTIME_ERROR_MESSAGE
+} from '../../shared/windows-runtime'
 import { mergeRecallArchiveMessages, recordRecallArchiveMessages } from './recall-archive-service'
 import type { ExportImageQuality } from '../../shared/image-quality'
 
@@ -675,11 +679,13 @@ const DATABASE_KEY_ERROR_MESSAGES: Record<DatabaseKeyValidationCode, string> = {
   ACCOUNT_MISMATCH: '密钥与当前账号不匹配',
   ROOT_UNAVAILABLE: '当前数据库目录不可用',
   DATABASE_FILE_MISSING: '数据库文件缺失',
+  VC_RUNTIME_MISSING: WINDOWS_VC_RUNTIME_ERROR_MESSAGE,
   UNKNOWN_VALIDATION_ERROR: '未知验证错误'
 }
 
 function mapConnectionError(detail: string): DatabaseKeyValidationCode {
   const normalized = detail.toLowerCase()
+  if (isWindowsVcRuntimeMissingError(detail, process.platform)) return 'VC_RUNTIME_MISSING'
   if (normalized.includes('-1005') || normalized.includes('不匹配')) return 'ACCOUNT_MISMATCH'
   if (normalized.includes('session.db') || normalized.includes('数据库文件')) {
     return 'DATABASE_FILE_MISSING'

src/preload/index.d.ts

@@ -10,6 +10,7 @@ import {
 } from '../shared/report-history'
 import type {
   DatabaseKeyEnvironment,
+  DatabaseInitResult,
   DatabaseKeyStorageResult,
   DatabaseKeyValidationResult,
   AccountDiscoveryResult
@@ -141,10 +142,8 @@ declare global {
       onAppUpdateState: (callback: (state: AppUpdateState) => void) => () => void
       getCacheSummary: () => Promise<CacheSummary>
       clearCache: (scope: 'bootstrap' | 'electron' | 'knowledge' | 'all') => Promise<CacheSummary>
-      initDb: (
-        key: string,
-        accountRoot: string
-      ) => Promise<boolean | { success: boolean; error?: string; monitoring?: boolean }>
+      openKnowledgeDirectory: () => Promise<{ success: boolean; error?: string }>
+      initDb: (key: string, accountRoot: string) => Promise<boolean | DatabaseInitResult>
       discoverAccounts: (inputPath: string) => Promise<AccountDiscoveryResult>
       getBootstrapCache: () => Promise<{
         self?: { wxid: string; nickname: string; avatar?: string; accountRoot: string }

src/preload/index.ts

@@ -66,6 +66,8 @@ const api = {
   getCacheSummary: (): Promise<CacheSummary> => ipcRenderer.invoke('cache:getSummary'),
   clearCache: (scope: 'bootstrap' | 'electron' | 'knowledge' | 'all'): Promise<CacheSummary> =>
     ipcRenderer.invoke('cache:clear', scope),
+  openKnowledgeDirectory: (): Promise<{ success: boolean; error?: string }> =>
+    ipcRenderer.invoke('cache:openKnowledgeDirectory'),
   initDb: (key: string, accountRoot: string) => ipcRenderer.invoke('db:init', key, accountRoot),
   discoverAccounts: (inputPath: string): Promise<AccountDiscoveryResult> =>
     ipcRenderer.invoke('accounts:discover', inputPath),

src/renderer/src/components/DatabaseConnectionPage.tsx

@@ -1,5 +1,6 @@
 import React from 'react'
 import type { DatabaseKeyEnvironment, WechatAccountCandidate } from '../../../shared/database-key'
+import { WINDOWS_VC_RUNTIME_DOWNLOAD_URL } from '../../../shared/windows-runtime'
 
 const GUIDE_URL =
   'https://github.com/Wxw-Gu/WechatExplorer/blob/main/docs/user-guide/getting-started.md'
@@ -461,7 +462,12 @@ export function DatabaseConnectionPage({
                     </a>
                   </>
                 ) : (
-                  'Windows 已完整支持，不需要关闭 SIP。'
+                  <>
+                    Windows 需要 Microsoft Visual C++ 2015-2022 x64 运行库。{' '}
+                    <a href={WINDOWS_VC_RUNTIME_DOWNLOAD_URL} target="_blank" rel="noreferrer">
+                      下载运行库
+                    </a>
+                  </>
                 )}
               </p>
               {showMacKeyFaq && isMac && (
@@ -521,6 +527,14 @@ export function DatabaseConnectionPage({
                 </div>
               )}
               {status && <div className={`database-login-message ${statusKind}`}>{status}</div>}
+              {platform === 'win32' && (
+                <p className="database-login-platform-note">
+                  无法加载数据库组件时，请安装 Microsoft Visual C++ 2015-2022 x64 运行库。{' '}
+                  <a href={WINDOWS_VC_RUNTIME_DOWNLOAD_URL} target="_blank" rel="noreferrer">
+                    下载运行库
+                  </a>
+                </p>
+              )}
               <button
                 type="button"
                 className="database-login-primary"

src/renderer/src/components/search/AISearchWorkspace.tsx

@@ -1392,6 +1392,13 @@ export function AISearchWorkspace({
                 ref={composerRef}
                 value={query}
                 onChange={(event) => setQuery(event.target.value)}
+                onKeyDown={(event) => {
+                  if (event.key !== 'Enter' || event.shiftKey || event.nativeEvent.isComposing) {
+                    return
+                  }
+                  event.preventDefault()
+                  void runAnalysis()
+                }}
                 placeholder="例如：技术交流群最近讨论了哪些 Windows 性能问题？"
                 rows={2}
               />

src/renderer/src/features/settings/pages/CacheCleanupPage.tsx

@@ -10,10 +10,14 @@ function formatBytes(value: number): string {
   return `${(value / 1024 / 1024 / 1024).toFixed(1)} GB`
 }
 
-export function CacheCleanupPage({ onNotice }: { onNotice: (message: string) => void }): React.ReactElement {
+export function CacheCleanupPage({
+  onNotice
+}: {
+  onNotice: (message: string) => void
+}): React.ReactElement {
   const [summary, setSummary] = useState<CacheSummary | null>(null)
   const [busyScope, setBusyScope] = useState<
-    'bootstrap' | 'electron' | 'knowledge' | 'all' | 'local' | null
+    'bootstrap' | 'electron' | 'knowledge' | 'knowledge-directory' | 'all' | 'local' | null
   >(null)
 
   const refresh = useCallback(async (): Promise<void> => {
@@ -52,6 +56,19 @@ export function CacheCleanupPage({ onNotice }: { onNotice: (message: string) =>
     }
   }
 
+  const openKnowledge = async (): Promise<void> => {
+    setBusyScope('knowledge-directory')
+    try {
+      const result = await window.api.openKnowledgeDirectory()
+      if (!result.success) throw new Error(result.error || '无法打开知识库文件夹')
+      onNotice('已打开知识库文件夹')
+    } catch (error) {
+      onNotice(error instanceof Error ? error.message : '无法打开知识库文件夹')
+    } finally {
+      setBusyScope(null)
+    }
+  }
+
   return (
     <div className="settings-page">
       <header className="settings-page-header">
@@ -88,15 +105,28 @@ export function CacheCleanupPage({ onNotice }: { onNotice: (message: string) =>
                 <div>
                   <h3>{item.label}</h3>
                   <p>{item.description}</p>
-                  <small>{formatBytes(item.sizeBytes)} · {item.fileCount} 个文件</small>
+                  <small>
+                    {formatBytes(item.sizeBytes)} · {item.fileCount} 个文件
+                  </small>
+                </div>
+                <div className="settings-cache-actions">
+                  {item.id === 'knowledge' && (
+                    <button
+                      type="button"
+                      disabled={busyScope !== null}
+                      onClick={() => void openKnowledge()}
+                    >
+                      {busyScope === 'knowledge-directory' ? '打开中...' : '打开文件夹'}
+                    </button>
+                  )}
+                  <button
+                    type="button"
+                    disabled={busyScope !== null}
+                    onClick={() => void clear(item.id)}
+                  >
+                    {busyScope === item.id ? '清理中...' : '清理'}
+                  </button>
                 </div>
-                <button
-                  type="button"
-                  disabled={busyScope !== null}
-                  onClick={() => void clear(item.id)}
-                >
-                  {busyScope === item.id ? '清理中...' : '清理'}
-                </button>
               </section>
             ))}
             <section className="settings-card settings-cache-item">
@@ -113,7 +143,9 @@ export function CacheCleanupPage({ onNotice }: { onNotice: (message: string) =>
 
           <div className="settings-inline-note">
             <strong>说明</strong>
-            <span>缓存没有过期时间，只有在这里手动清理，或应用检测到格式需要迁移时才会被替换。</span>
+            <span>
+              缓存没有过期时间，只有在这里手动清理，或应用检测到格式需要迁移时才会被替换。
+            </span>
           </div>
         </div>
       </div>

src/renderer/src/styles/settings-preferences.scss

@@ -2,6 +2,7 @@
 .settings-primary-button,
 .settings-danger-button,
 .settings-cache-item > button,
+.settings-cache-actions button,
 .about-links-card button {
   border: 1px solid var(--wxex-border);
   border-radius: var(--wxex-radius-sm);
@@ -101,6 +102,12 @@
   }
 }
 
+.settings-cache-actions {
+  display: flex;
+  flex: 0 0 auto;
+  gap: 8px;
+}
+
 .settings-inline-note,
 .settings-footnote {
   color: var(--wxex-text-muted);
@@ -820,4 +827,12 @@
     align-items: flex-start;
     flex-direction: column;
   }
+
+  .settings-cache-actions {
+    width: 100%;
+
+    button {
+      flex: 1;
+    }
+  }
 }

src/shared/database-key.ts

@@ -4,8 +4,18 @@ export type DatabaseKeyValidationCode =
   | 'ACCOUNT_MISMATCH'
   | 'ROOT_UNAVAILABLE'
   | 'DATABASE_FILE_MISSING'
+  | 'VC_RUNTIME_MISSING'
   | 'UNKNOWN_VALIDATION_ERROR'
 
+export type DatabaseInitCode = DatabaseKeyValidationCode | 'ACCOUNT_SELECTION_REQUIRED'
+
+export interface DatabaseInitResult {
+  success: boolean
+  code?: DatabaseInitCode
+  error?: string
+  monitoring?: boolean
+}
+
 export interface DatabaseKeyValidationResult {
   success: boolean
   code?: DatabaseKeyValidationCode

src/shared/windows-runtime.ts

@@ -0,0 +1,13 @@
+export const WINDOWS_VC_RUNTIME_DOWNLOAD_URL = 'https://aka.ms/vc14/vc_redist.x64.exe'
+
+export const WINDOWS_VC_RUNTIME_ERROR_MESSAGE = `当前 Windows 缺少 Microsoft Visual C++ 2015-2022 x64 运行库，无法加载微信数据库组件。请下载安装后重新启动 WechatExplorer：${WINDOWS_VC_RUNTIME_DOWNLOAD_URL}`
+
+const VC_RUNTIME_LIBRARY_PATTERN =
+  /(?:vcruntime140(?:_1)?\.dll|msvcp140(?:_[12])?\.dll|concrt140\.dll|ucrtbase\.dll|api-ms-win-crt)/i
+const WINDOWS_DEPENDENCY_LOAD_PATTERN =
+  /(?:the specified module could not be found|找不到指定的模块|找不到指定模块|win32 error\s*126|error\s*126|err_dlopen_failed)/i
+
+export function isWindowsVcRuntimeMissingError(detail: string, platform: string): boolean {
+  if (platform !== 'win32') return false
+  return VC_RUNTIME_LIBRARY_PATTERN.test(detail) || WINDOWS_DEPENDENCY_LOAD_PATTERN.test(detail)
+}

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)
+  })
+})