Merge pull request #362 from aits2026/codex/ts0301-01-export-opt

导出能力重构 + 聊天/SNS/年报协同优化

electron/main.ts

@@ -3,7 +3,7 @@ import { app, BrowserWindow, ipcMain, nativeTheme, session } from 'electron'
 import { Worker } from 'worker_threads'
 import { join, dirname } from 'path'
 import { autoUpdater } from 'electron-updater'
-import { readFile, writeFile, mkdir } from 'fs/promises'
+import { readFile, writeFile, mkdir, rm, readdir } from 'fs/promises'
 import { existsSync } from 'fs'
 import { ConfigService } from './services/config'
 import { dbPathService } from './services/dbPathService'
@@ -21,6 +21,7 @@ import { videoService } from './services/videoService'
 import { snsService, isVideoUrl } from './services/snsService'
 import { contactExportService } from './services/contactExportService'
 import { windowsHelloService } from './services/windowsHelloService'
+import { exportCardDiagnosticsService } from './services/exportCardDiagnosticsService'
 import { cloudControlService } from './services/cloudControlService'
 
 import { registerNotificationHandlers, showNotification } from './windows/notificationWindow'
@@ -85,6 +86,7 @@ let agreementWindow: BrowserWindow | null = null
 let onboardingWindow: BrowserWindow | null = null
 // Splash 启动窗口
 let splashWindow: BrowserWindow | null = null
+const sessionChatWindows = new Map<string, BrowserWindow>()
 const keyService = new KeyService()
 
 let mainWindowReady = false
@@ -95,6 +97,98 @@ let isDownloadInProgress = false
 let downloadProgressHandler: ((progress: any) => void) | null = null
 let downloadedHandler: (() => void) | null = null
 
+type AnnualReportYearsLoadStrategy = 'cache' | 'native' | 'hybrid'
+type AnnualReportYearsLoadPhase = 'cache' | 'native' | 'scan' | 'done'
+
+interface AnnualReportYearsProgressPayload {
+  years?: number[]
+  done: boolean
+  error?: string
+  canceled?: boolean
+  strategy?: AnnualReportYearsLoadStrategy
+  phase?: AnnualReportYearsLoadPhase
+  statusText?: string
+  nativeElapsedMs?: number
+  scanElapsedMs?: number
+  totalElapsedMs?: number
+  switched?: boolean
+  nativeTimedOut?: boolean
+}
+
+interface AnnualReportYearsTaskState {
+  cacheKey: string
+  canceled: boolean
+  done: boolean
+  snapshot: AnnualReportYearsProgressPayload
+  updatedAt: number
+}
+
+const annualReportYearsLoadTasks = new Map<string, AnnualReportYearsTaskState>()
+const annualReportYearsTaskByCacheKey = new Map<string, string>()
+const annualReportYearsSnapshotCache = new Map<string, { snapshot: AnnualReportYearsProgressPayload; updatedAt: number; taskId: string }>()
+const annualReportYearsSnapshotTtlMs = 10 * 60 * 1000
+
+const normalizeAnnualReportYearsSnapshot = (snapshot: AnnualReportYearsProgressPayload): AnnualReportYearsProgressPayload => {
+  const years = Array.isArray(snapshot.years) ? [...snapshot.years] : []
+  return { ...snapshot, years }
+}
+
+const buildAnnualReportYearsCacheKey = (dbPath: string, wxid: string): string => {
+  return `${String(dbPath || '').trim()}\u0001${String(wxid || '').trim()}`
+}
+
+const pruneAnnualReportYearsSnapshotCache = (): void => {
+  const now = Date.now()
+  for (const [cacheKey, entry] of annualReportYearsSnapshotCache.entries()) {
+    if (now - entry.updatedAt > annualReportYearsSnapshotTtlMs) {
+      annualReportYearsSnapshotCache.delete(cacheKey)
+    }
+  }
+}
+
+const persistAnnualReportYearsSnapshot = (
+  cacheKey: string,
+  taskId: string,
+  snapshot: AnnualReportYearsProgressPayload
+): void => {
+  annualReportYearsSnapshotCache.set(cacheKey, {
+    taskId,
+    snapshot: normalizeAnnualReportYearsSnapshot(snapshot),
+    updatedAt: Date.now()
+  })
+  pruneAnnualReportYearsSnapshotCache()
+}
+
+const getAnnualReportYearsSnapshot = (
+  cacheKey: string
+): { taskId: string; snapshot: AnnualReportYearsProgressPayload } | null => {
+  pruneAnnualReportYearsSnapshotCache()
+  const entry = annualReportYearsSnapshotCache.get(cacheKey)
+  if (!entry) return null
+  return {
+    taskId: entry.taskId,
+    snapshot: normalizeAnnualReportYearsSnapshot(entry.snapshot)
+  }
+}
+
+const broadcastAnnualReportYearsProgress = (
+  taskId: string,
+  payload: AnnualReportYearsProgressPayload
+): void => {
+  for (const win of BrowserWindow.getAllWindows()) {
+    if (win.isDestroyed()) continue
+    win.webContents.send('annualReport:availableYearsProgress', {
+      taskId,
+      ...payload
+    })
+  }
+}
+
+const isYearsLoadCanceled = (taskId: string): boolean => {
+  const task = annualReportYearsLoadTasks.get(taskId)
+  return task?.canceled === true
+}
+
 function createWindow(options: { autoShow?: boolean } = {}) {
   // 获取图标路径 - 打包后在 resources 目录
   const { autoShow = true } = options
@@ -591,6 +685,87 @@ function createChatHistoryWindow(sessionId: string, messageId: number) {
   return win
 }
 
+/**
+ * 创建独立的会话聊天窗口（单会话，复用聊天页右侧消息区域）
+ */
+function createSessionChatWindow(sessionId: string) {
+  const normalizedSessionId = String(sessionId || '').trim()
+  if (!normalizedSessionId) return null
+
+  const existing = sessionChatWindows.get(normalizedSessionId)
+  if (existing && !existing.isDestroyed()) {
+    if (existing.isMinimized()) {
+      existing.restore()
+    }
+    existing.focus()
+    return existing
+  }
+
+  const isDev = !!process.env.VITE_DEV_SERVER_URL
+  const iconPath = isDev
+    ? join(__dirname, '../public/icon.ico')
+    : join(process.resourcesPath, 'icon.ico')
+
+  const isDark = nativeTheme.shouldUseDarkColors
+
+  const win = new BrowserWindow({
+    width: 600,
+    height: 820,
+    minWidth: 420,
+    minHeight: 560,
+    icon: iconPath,
+    webPreferences: {
+      preload: join(__dirname, 'preload.js'),
+      contextIsolation: true,
+      nodeIntegration: false
+    },
+    titleBarStyle: 'hidden',
+    titleBarOverlay: {
+      color: '#00000000',
+      symbolColor: isDark ? '#ffffff' : '#1a1a1a',
+      height: 40
+    },
+    show: false,
+    backgroundColor: isDark ? '#1A1A1A' : '#F0F0F0',
+    autoHideMenuBar: true
+  })
+
+  const sessionParam = `sessionId=${encodeURIComponent(normalizedSessionId)}`
+  if (process.env.VITE_DEV_SERVER_URL) {
+    win.loadURL(`${process.env.VITE_DEV_SERVER_URL}#/chat-window?${sessionParam}`)
+
+    win.webContents.on('before-input-event', (event, input) => {
+      if (input.key === 'F12' || (input.control && input.shift && input.key === 'I')) {
+        if (win.webContents.isDevToolsOpened()) {
+          win.webContents.closeDevTools()
+        } else {
+          win.webContents.openDevTools()
+        }
+        event.preventDefault()
+      }
+    })
+  } else {
+    win.loadFile(join(__dirname, '../dist/index.html'), {
+      hash: `/chat-window?${sessionParam}`
+    })
+  }
+
+  win.once('ready-to-show', () => {
+    win.show()
+    win.focus()
+  })
+
+  win.on('closed', () => {
+    const tracked = sessionChatWindows.get(normalizedSessionId)
+    if (tracked === win) {
+      sessionChatWindows.delete(normalizedSessionId)
+    }
+  })
+
+  sessionChatWindows.set(normalizedSessionId, win)
+  return win
+}
+
 function showMainWindow() {
   shouldShowMain = true
   if (mainWindowReady) {
@@ -598,6 +773,65 @@ function showMainWindow() {
   }
 }
 
+const normalizeAccountId = (value: string): string => {
+  const trimmed = String(value || '').trim()
+  if (!trimmed) return ''
+  if (trimmed.toLowerCase().startsWith('wxid_')) {
+    const match = trimmed.match(/^(wxid_[^_]+)/i)
+    return match?.[1] || trimmed
+  }
+  const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
+  return suffixMatch ? suffixMatch[1] : trimmed
+}
+
+const buildAccountNameMatcher = (wxidCandidates: string[]) => {
+  const loweredCandidates = wxidCandidates
+    .map((item) => String(item || '').trim().toLowerCase())
+    .filter(Boolean)
+  return (name: string): boolean => {
+    const loweredName = String(name || '').trim().toLowerCase()
+    if (!loweredName) return false
+    return loweredCandidates.some((candidate) => (
+      loweredName === candidate ||
+      loweredName.startsWith(`${candidate}_`) ||
+      loweredName.includes(candidate)
+    ))
+  }
+}
+
+const removePathIfExists = async (
+  targetPath: string,
+  removedPaths: string[],
+  warnings: string[]
+): Promise<void> => {
+  if (!targetPath || !existsSync(targetPath)) return
+  try {
+    await rm(targetPath, { recursive: true, force: true })
+    removedPaths.push(targetPath)
+  } catch (error) {
+    warnings.push(`${targetPath}: ${String(error)}`)
+  }
+}
+
+const removeMatchedEntriesInDir = async (
+  rootDir: string,
+  shouldRemove: (name: string) => boolean,
+  removedPaths: string[],
+  warnings: string[]
+): Promise<void> => {
+  if (!rootDir || !existsSync(rootDir)) return
+  try {
+    const entries = await readdir(rootDir, { withFileTypes: true })
+    for (const entry of entries) {
+      if (!shouldRemove(entry.name)) continue
+      const targetPath = join(rootDir, entry.name)
+      await removePathIfExists(targetPath, removedPaths, warnings)
+    }
+  } catch (error) {
+    warnings.push(`${rootDir}: ${String(error)}`)
+  }
+}
+
 // 注册 IPC 处理器
 function registerIpcHandlers() {
   registerNotificationHandlers()
@@ -666,6 +900,26 @@ function registerIpcHandlers() {
     }
   })
 
+  ipcMain.handle('diagnostics:getExportCardLogs', async (_, options?: { limit?: number }) => {
+    return exportCardDiagnosticsService.snapshot(options?.limit)
+  })
+
+  ipcMain.handle('diagnostics:clearExportCardLogs', async () => {
+    exportCardDiagnosticsService.clear()
+    return { success: true }
+  })
+
+  ipcMain.handle('diagnostics:exportExportCardLogs', async (_, payload?: {
+    filePath?: string
+    frontendLogs?: unknown[]
+  }) => {
+    const filePath = typeof payload?.filePath === 'string' ? payload.filePath.trim() : ''
+    if (!filePath) {
+      return { success: false, error: '导出路径不能为空' }
+    }
+    return exportCardDiagnosticsService.exportCombinedLogs(filePath, payload?.frontendLogs || [])
+  })
+
   // 数据收集服务
   ipcMain.handle('cloud:init', async () => {
     await cloudControlService.init()
@@ -816,6 +1070,12 @@ function registerIpcHandlers() {
     return true
   })
 
+  // 打开会话聊天窗口（同会话仅保留一个窗口并聚焦）
+  ipcMain.handle('window:openSessionChatWindow', (_, sessionId: string) => {
+    const win = createSessionChatWindow(sessionId)
+    return Boolean(win)
+  })
+
   // 根据视频尺寸调整窗口大小
   ipcMain.handle('window:resizeToFitVideo', (event, videoWidth: number, videoHeight: number) => {
     const win = BrowserWindow.fromWebContents(event.sender)
@@ -926,8 +1186,27 @@ function registerIpcHandlers() {
     return chatService.getSessions()
   })
 
-  ipcMain.handle('chat:enrichSessionsContactInfo', async (_, usernames: string[]) => {
-    return chatService.enrichSessionsContactInfo(usernames)
+  ipcMain.handle('chat:getSessionStatuses', async (_, usernames: string[]) => {
+    return chatService.getSessionStatuses(usernames)
+  })
+
+  ipcMain.handle('chat:getExportTabCounts', async () => {
+    return chatService.getExportTabCounts()
+  })
+
+  ipcMain.handle('chat:getContactTypeCounts', async () => {
+    return chatService.getContactTypeCounts()
+  })
+
+  ipcMain.handle('chat:getSessionMessageCounts', async (_, sessionIds: string[]) => {
+    return chatService.getSessionMessageCounts(sessionIds)
+  })
+
+  ipcMain.handle('chat:enrichSessionsContactInfo', async (_, usernames: string[], options?: {
+    skipDisplayName?: boolean
+    onlyMissingAvatar?: boolean
+  }) => {
+    return chatService.enrichSessionsContactInfo(usernames, options)
   })
 
   ipcMain.handle('chat:getMessages', async (_, sessionId: string, offset?: number, limit?: number, startTime?: number, endTime?: number, ascending?: boolean) => {
@@ -984,10 +1263,161 @@ function registerIpcHandlers() {
     return true
   })
 
+  ipcMain.handle('chat:clearCurrentAccountData', async (_, options?: { clearCache?: boolean; clearExports?: boolean }) => {
+    const cfg = configService
+    if (!cfg) return { success: false, error: '配置服务未初始化' }
+
+    const clearCache = options?.clearCache === true
+    const clearExports = options?.clearExports === true
+    if (!clearCache && !clearExports) {
+      return { success: false, error: '请至少选择一项清理范围' }
+    }
+
+    const rawWxid = String(cfg.get('myWxid') || '').trim()
+    if (!rawWxid) {
+      return { success: false, error: '当前账号未登录或未识别，无法清理' }
+    }
+    const normalizedWxid = normalizeAccountId(rawWxid)
+    const wxidCandidates = Array.from(new Set([rawWxid, normalizedWxid].filter(Boolean)))
+    const isMatchedAccountName = buildAccountNameMatcher(wxidCandidates)
+    const removedPaths: string[] = []
+    const warnings: string[] = []
+
+    try {
+      wcdbService.close()
+      chatService.close()
+    } catch (error) {
+      warnings.push(`关闭数据库连接失败: ${String(error)}`)
+    }
+
+    if (clearCache) {
+      const [analyticsResult, imageResult] = await Promise.all([
+        analyticsService.clearCache(),
+        imageDecryptService.clearCache()
+      ])
+      const chatResult = chatService.clearCaches()
+      const cleanupResults = [analyticsResult, imageResult, chatResult]
+      for (const result of cleanupResults) {
+        if (!result.success && result.error) warnings.push(result.error)
+      }
+
+      const configuredCachePath = String(cfg.get('cachePath') || '').trim()
+      const documentsWeFlowDir = join(app.getPath('documents'), 'WeFlow')
+      const userDataCacheDir = join(app.getPath('userData'), 'cache')
+      const cacheRootCandidates = [
+        configuredCachePath,
+        join(documentsWeFlowDir, 'Images'),
+        join(documentsWeFlowDir, 'Voices'),
+        join(documentsWeFlowDir, 'Emojis'),
+        userDataCacheDir
+      ].filter(Boolean)
+
+      for (const wxid of wxidCandidates) {
+        if (configuredCachePath) {
+          await removePathIfExists(join(configuredCachePath, wxid), removedPaths, warnings)
+          await removePathIfExists(join(configuredCachePath, 'Images', wxid), removedPaths, warnings)
+          await removePathIfExists(join(configuredCachePath, 'Voices', wxid), removedPaths, warnings)
+          await removePathIfExists(join(configuredCachePath, 'Emojis', wxid), removedPaths, warnings)
+        }
+        await removePathIfExists(join(documentsWeFlowDir, 'Images', wxid), removedPaths, warnings)
+        await removePathIfExists(join(documentsWeFlowDir, 'Voices', wxid), removedPaths, warnings)
+        await removePathIfExists(join(documentsWeFlowDir, 'Emojis', wxid), removedPaths, warnings)
+        await removePathIfExists(join(userDataCacheDir, wxid), removedPaths, warnings)
+      }
+
+      for (const cacheRoot of cacheRootCandidates) {
+        await removeMatchedEntriesInDir(cacheRoot, isMatchedAccountName, removedPaths, warnings)
+      }
+    }
+
+    if (clearExports) {
+      const configuredExportPath = String(cfg.get('exportPath') || '').trim()
+      const documentsWeFlowDir = join(app.getPath('documents'), 'WeFlow')
+      const exportRootCandidates = [
+        configuredExportPath,
+        join(documentsWeFlowDir, 'exports'),
+        join(documentsWeFlowDir, 'Exports')
+      ].filter(Boolean)
+
+      for (const exportRoot of exportRootCandidates) {
+        await removeMatchedEntriesInDir(exportRoot, isMatchedAccountName, removedPaths, warnings)
+      }
+
+      const resetConfigKeys = [
+        'exportSessionRecordMap',
+        'exportLastSessionRunMap',
+        'exportLastContentRunMap',
+        'exportSessionMessageCountCacheMap',
+        'exportSessionContentMetricCacheMap',
+        'exportSnsStatsCacheMap',
+        'snsPageCacheMap',
+        'contactsListCacheMap',
+        'contactsAvatarCacheMap',
+        'lastSession'
+      ]
+      for (const key of resetConfigKeys) {
+        const defaultValue = key === 'lastSession' ? '' : {}
+        cfg.set(key as any, defaultValue as any)
+      }
+    }
+
+    if (clearCache) {
+      try {
+        const wxidConfigsRaw = cfg.get('wxidConfigs') as Record<string, any> | undefined
+        if (wxidConfigsRaw && typeof wxidConfigsRaw === 'object') {
+          const nextConfigs: Record<string, any> = { ...wxidConfigsRaw }
+          for (const key of Object.keys(nextConfigs)) {
+            if (isMatchedAccountName(key) || normalizeAccountId(key) === normalizedWxid) {
+              delete nextConfigs[key]
+            }
+          }
+          cfg.set('wxidConfigs' as any, nextConfigs as any)
+        }
+        cfg.set('myWxid' as any, '')
+        cfg.set('decryptKey' as any, '')
+        cfg.set('imageXorKey' as any, 0)
+        cfg.set('imageAesKey' as any, '')
+        cfg.set('dbPath' as any, '')
+        cfg.set('lastOpenedDb' as any, '')
+        cfg.set('onboardingDone' as any, false)
+        cfg.set('lastSession' as any, '')
+      } catch (error) {
+        warnings.push(`清理账号配置失败: ${String(error)}`)
+      }
+    }
+
+    return {
+      success: true,
+      removedPaths,
+      warning: warnings.length > 0 ? warnings.join('; ') : undefined
+    }
+  })
+
   ipcMain.handle('chat:getSessionDetail', async (_, sessionId: string) => {
     return chatService.getSessionDetail(sessionId)
   })
 
+  ipcMain.handle('chat:getSessionDetailFast', async (_, sessionId: string) => {
+    return chatService.getSessionDetailFast(sessionId)
+  })
+
+  ipcMain.handle('chat:getSessionDetailExtra', async (_, sessionId: string) => {
+    return chatService.getSessionDetailExtra(sessionId)
+  })
+
+  ipcMain.handle('chat:getExportSessionStats', async (_, sessionIds: string[], options?: {
+    includeRelations?: boolean
+    forceRefresh?: boolean
+    allowStaleCache?: boolean
+    preferAccurateSpecialTypes?: boolean
+  }) => {
+    return chatService.getExportSessionStats(sessionIds, options)
+  })
+
+  ipcMain.handle('chat:getGroupMyMessageCountHint', async (_, chatroomId: string) => {
+    return chatService.getGroupMyMessageCountHint(chatroomId)
+  })
+
   ipcMain.handle('chat:getImageData', async (_, sessionId: string, msgId: string) => {
     return chatService.getImageData(sessionId, msgId)
   })
@@ -1004,6 +1434,9 @@ function registerIpcHandlers() {
   ipcMain.handle('chat:getMessageDates', async (_, sessionId: string) => {
     return chatService.getMessageDates(sessionId)
   })
+  ipcMain.handle('chat:getMessageDateCounts', async (_, sessionId: string) => {
+    return chatService.getMessageDateCounts(sessionId)
+  })
   ipcMain.handle('chat:resolveVoiceCache', async (_, sessionId: string, msgId: string) => {
     return chatService.resolveVoiceCache(sessionId, msgId)
   })
@@ -1030,6 +1463,14 @@ function registerIpcHandlers() {
     return snsService.getSnsUsernames()
   })
 
+  ipcMain.handle('sns:getExportStats', async () => {
+    return snsService.getExportStats()
+  })
+
+  ipcMain.handle('sns:getExportStatsFast', async () => {
+    return snsService.getExportStatsFast()
+  })
+
   ipcMain.handle('sns:debugResource', async (_, url: string) => {
     return snsService.debugResource(url)
   })
@@ -1077,11 +1518,17 @@ function registerIpcHandlers() {
   })
 
   ipcMain.handle('sns:exportTimeline', async (event, options: any) => {
-    return snsService.exportTimeline(options, (progress) => {
-      if (!event.sender.isDestroyed()) {
-        event.sender.send('sns:exportProgress', progress)
+    const exportOptions = { ...(options || {}) }
+    delete exportOptions.taskId
+
+    return snsService.exportTimeline(
+      exportOptions,
+      (progress) => {
+        if (!event.sender.isDestroyed()) {
+          event.sender.send('sns:exportProgress', progress)
+        }
       }
-    })
+    )
   })
 
   ipcMain.handle('sns:selectExportDir', async () => {
@@ -1210,6 +1657,7 @@ function registerIpcHandlers() {
         event.sender.send('export:progress', progress)
       }
     }
+
     return exportService.exportSessions(sessionIds, outputDir, options, onProgress)
   })
 
@@ -1299,6 +1747,16 @@ function registerIpcHandlers() {
     return groupAnalyticsService.getGroupMembers(chatroomId)
   })
 
+  ipcMain.handle(
+    'groupAnalytics:getGroupMembersPanelData',
+    async (_, chatroomId: string, options?: { forceRefresh?: boolean; includeMessageCounts?: boolean } | boolean) => {
+      const normalizedOptions = typeof options === 'boolean'
+        ? { forceRefresh: options }
+        : options
+      return groupAnalyticsService.getGroupMembersPanelData(chatroomId, normalizedOptions)
+    }
+  )
+
   ipcMain.handle('groupAnalytics:getGroupMessageRanking', async (_, chatroomId: string, limit?: number, startTime?: number, endTime?: number) => {
     return groupAnalyticsService.getGroupMessageRanking(chatroomId, limit, startTime, endTime)
   })
@@ -1379,6 +1837,194 @@ function registerIpcHandlers() {
     })
   })
 
+  ipcMain.handle('annualReport:startAvailableYearsLoad', async (event) => {
+    const cfg = configService || new ConfigService()
+    configService = cfg
+
+    const dbPath = cfg.get('dbPath')
+    const decryptKey = cfg.get('decryptKey')
+    const wxid = cfg.get('myWxid')
+    const cacheKey = buildAnnualReportYearsCacheKey(dbPath, wxid)
+
+    const runningTaskId = annualReportYearsTaskByCacheKey.get(cacheKey)
+    if (runningTaskId) {
+      const runningTask = annualReportYearsLoadTasks.get(runningTaskId)
+      if (runningTask && !runningTask.done) {
+        return {
+          success: true,
+          taskId: runningTaskId,
+          reused: true,
+          snapshot: normalizeAnnualReportYearsSnapshot(runningTask.snapshot)
+        }
+      }
+      annualReportYearsTaskByCacheKey.delete(cacheKey)
+    }
+
+    const cachedSnapshot = getAnnualReportYearsSnapshot(cacheKey)
+    if (cachedSnapshot && cachedSnapshot.snapshot.done) {
+      return {
+        success: true,
+        taskId: cachedSnapshot.taskId,
+        reused: true,
+        snapshot: normalizeAnnualReportYearsSnapshot(cachedSnapshot.snapshot)
+      }
+    }
+
+    const taskId = `years_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`
+    const initialSnapshot: AnnualReportYearsProgressPayload = cachedSnapshot?.snapshot && !cachedSnapshot.snapshot.done
+      ? {
+        ...normalizeAnnualReportYearsSnapshot(cachedSnapshot.snapshot),
+        done: false,
+        canceled: false,
+        error: undefined
+      }
+      : {
+        years: [],
+        done: false,
+        strategy: 'native',
+        phase: 'native',
+        statusText: '准备使用原生快速模式加载年份...',
+        nativeElapsedMs: 0,
+        scanElapsedMs: 0,
+        totalElapsedMs: 0,
+        switched: false,
+        nativeTimedOut: false
+      }
+
+    const updateTaskSnapshot = (payload: AnnualReportYearsProgressPayload): AnnualReportYearsProgressPayload | null => {
+      const task = annualReportYearsLoadTasks.get(taskId)
+      if (!task) return null
+
+      const hasPayloadYears = Array.isArray(payload.years)
+      const nextYears = (hasPayloadYears && (payload.done || (payload.years || []).length > 0))
+        ? [...(payload.years || [])]
+        : Array.isArray(task.snapshot.years) ? [...task.snapshot.years] : []
+
+      const nextSnapshot: AnnualReportYearsProgressPayload = normalizeAnnualReportYearsSnapshot({
+        ...task.snapshot,
+        ...payload,
+        years: nextYears
+      })
+      task.snapshot = nextSnapshot
+      task.done = nextSnapshot.done === true
+      task.updatedAt = Date.now()
+      annualReportYearsLoadTasks.set(taskId, task)
+      persistAnnualReportYearsSnapshot(task.cacheKey, taskId, nextSnapshot)
+      return nextSnapshot
+    }
+
+    annualReportYearsLoadTasks.set(taskId, {
+      cacheKey,
+      canceled: false,
+      done: false,
+      snapshot: normalizeAnnualReportYearsSnapshot(initialSnapshot),
+      updatedAt: Date.now()
+    })
+    annualReportYearsTaskByCacheKey.set(cacheKey, taskId)
+    persistAnnualReportYearsSnapshot(cacheKey, taskId, initialSnapshot)
+
+    void (async () => {
+      try {
+        const result = await annualReportService.getAvailableYears({
+          dbPath,
+          decryptKey,
+          wxid,
+          nativeTimeoutMs: 5000,
+          onProgress: (progress) => {
+            if (isYearsLoadCanceled(taskId)) return
+            const snapshot = updateTaskSnapshot({
+              ...progress,
+              done: false
+            })
+            if (!snapshot) return
+            broadcastAnnualReportYearsProgress(taskId, snapshot)
+          },
+          shouldCancel: () => isYearsLoadCanceled(taskId)
+        })
+
+        const canceled = isYearsLoadCanceled(taskId)
+        if (canceled) {
+          const snapshot = updateTaskSnapshot({
+            done: true,
+            canceled: true,
+            phase: 'done',
+            statusText: '已取消年份加载'
+          })
+          if (snapshot) {
+            broadcastAnnualReportYearsProgress(taskId, snapshot)
+          }
+          return
+        }
+
+        const completionPayload: AnnualReportYearsProgressPayload = result.success
+          ? {
+            years: result.data || [],
+            done: true,
+            strategy: result.meta?.strategy,
+            phase: 'done',
+            statusText: result.meta?.statusText || '年份数据加载完成',
+            nativeElapsedMs: result.meta?.nativeElapsedMs,
+            scanElapsedMs: result.meta?.scanElapsedMs,
+            totalElapsedMs: result.meta?.totalElapsedMs,
+            switched: result.meta?.switched,
+            nativeTimedOut: result.meta?.nativeTimedOut
+          }
+          : {
+            years: result.data || [],
+            done: true,
+            error: result.error || '加载年度数据失败',
+            strategy: result.meta?.strategy,
+            phase: 'done',
+            statusText: result.meta?.statusText || '年份数据加载失败',
+            nativeElapsedMs: result.meta?.nativeElapsedMs,
+            scanElapsedMs: result.meta?.scanElapsedMs,
+            totalElapsedMs: result.meta?.totalElapsedMs,
+            switched: result.meta?.switched,
+            nativeTimedOut: result.meta?.nativeTimedOut
+          }
+
+        const snapshot = updateTaskSnapshot(completionPayload)
+        if (snapshot) {
+          broadcastAnnualReportYearsProgress(taskId, snapshot)
+        }
+      } catch (e) {
+        const snapshot = updateTaskSnapshot({
+          done: true,
+          error: String(e),
+          phase: 'done',
+          statusText: '年份数据加载失败',
+          strategy: 'hybrid'
+        })
+        if (snapshot) {
+          broadcastAnnualReportYearsProgress(taskId, snapshot)
+        }
+      } finally {
+        const task = annualReportYearsLoadTasks.get(taskId)
+        if (task) {
+          annualReportYearsTaskByCacheKey.delete(task.cacheKey)
+        }
+        annualReportYearsLoadTasks.delete(taskId)
+      }
+    })()
+
+    return {
+      success: true,
+      taskId,
+      reused: false,
+      snapshot: normalizeAnnualReportYearsSnapshot(initialSnapshot)
+    }
+  })
+
+  ipcMain.handle('annualReport:cancelAvailableYearsLoad', async (_, taskId: string) => {
+    const key = String(taskId || '').trim()
+    if (!key) return { success: false, error: '任务ID不能为空' }
+    const task = annualReportYearsLoadTasks.get(key)
+    if (!task) return { success: true }
+    task.canceled = true
+    annualReportYearsLoadTasks.set(key, task)
+    return { success: true }
+  })
+
   ipcMain.handle('annualReport:generateReport', async (_, year: number) => {
     const cfg = configService || new ConfigService()
     configService = cfg
@@ -1542,7 +2188,7 @@ function registerIpcHandlers() {
 
   // 密钥获取
   ipcMain.handle('key:autoGetDbKey', async (event) => {
-    return keyService.autoGetDbKey(60_000, (message, level) => {
+    return keyService.autoGetDbKey(180_000, (message, level) => {
       event.sender.send('key:dbKeyStatus', { message, level })
     })
   })

electron/preload.ts

@@ -73,6 +73,15 @@ contextBridge.exposeInMainWorld('electronAPI', {
     debug: (data: any) => ipcRenderer.send('log:debug', data)
   },
 
+  diagnostics: {
+    getExportCardLogs: (options?: { limit?: number }) =>
+      ipcRenderer.invoke('diagnostics:getExportCardLogs', options),
+    clearExportCardLogs: () =>
+      ipcRenderer.invoke('diagnostics:clearExportCardLogs'),
+    exportExportCardLogs: (payload: { filePath: string; frontendLogs?: unknown[] }) =>
+      ipcRenderer.invoke('diagnostics:exportExportCardLogs', payload)
+  },
+
   // 窗口控制
   window: {
     minimize: () => ipcRenderer.send('window:minimize'),
@@ -89,7 +98,9 @@ contextBridge.exposeInMainWorld('electronAPI', {
     openImageViewerWindow: (imagePath: string, liveVideoPath?: string) =>
       ipcRenderer.invoke('window:openImageViewerWindow', imagePath, liveVideoPath),
     openChatHistoryWindow: (sessionId: string, messageId: number) =>
-      ipcRenderer.invoke('window:openChatHistoryWindow', sessionId, messageId)
+      ipcRenderer.invoke('window:openChatHistoryWindow', sessionId, messageId),
+    openSessionChatWindow: (sessionId: string) =>
+      ipcRenderer.invoke('window:openSessionChatWindow', sessionId)
   },
 
   // 数据库路径
@@ -130,8 +141,14 @@ contextBridge.exposeInMainWorld('electronAPI', {
   chat: {
     connect: () => ipcRenderer.invoke('chat:connect'),
     getSessions: () => ipcRenderer.invoke('chat:getSessions'),
-    enrichSessionsContactInfo: (usernames: string[]) =>
-      ipcRenderer.invoke('chat:enrichSessionsContactInfo', usernames),
+    getSessionStatuses: (usernames: string[]) => ipcRenderer.invoke('chat:getSessionStatuses', usernames),
+    getExportTabCounts: () => ipcRenderer.invoke('chat:getExportTabCounts'),
+    getContactTypeCounts: () => ipcRenderer.invoke('chat:getContactTypeCounts'),
+    getSessionMessageCounts: (sessionIds: string[]) => ipcRenderer.invoke('chat:getSessionMessageCounts', sessionIds),
+    enrichSessionsContactInfo: (
+      usernames: string[],
+      options?: { skipDisplayName?: boolean; onlyMissingAvatar?: boolean }
+    ) => ipcRenderer.invoke('chat:enrichSessionsContactInfo', usernames, options),
     getMessages: (sessionId: string, offset?: number, limit?: number, startTime?: number, endTime?: number, ascending?: boolean) =>
       ipcRenderer.invoke('chat:getMessages', sessionId, offset, limit, startTime, endTime, ascending),
     getLatestMessages: (sessionId: string, limit?: number) =>
@@ -149,14 +166,25 @@ contextBridge.exposeInMainWorld('electronAPI', {
     getMyAvatarUrl: () => ipcRenderer.invoke('chat:getMyAvatarUrl'),
     downloadEmoji: (cdnUrl: string, md5?: string) => ipcRenderer.invoke('chat:downloadEmoji', cdnUrl, md5),
     getCachedMessages: (sessionId: string) => ipcRenderer.invoke('chat:getCachedMessages', sessionId),
+    clearCurrentAccountData: (options: { clearCache?: boolean; clearExports?: boolean }) =>
+      ipcRenderer.invoke('chat:clearCurrentAccountData', options),
     close: () => ipcRenderer.invoke('chat:close'),
     getSessionDetail: (sessionId: string) => ipcRenderer.invoke('chat:getSessionDetail', sessionId),
+    getSessionDetailFast: (sessionId: string) => ipcRenderer.invoke('chat:getSessionDetailFast', sessionId),
+    getSessionDetailExtra: (sessionId: string) => ipcRenderer.invoke('chat:getSessionDetailExtra', sessionId),
+    getExportSessionStats: (
+      sessionIds: string[],
+      options?: { includeRelations?: boolean; forceRefresh?: boolean; allowStaleCache?: boolean; preferAccurateSpecialTypes?: boolean }
+    ) => ipcRenderer.invoke('chat:getExportSessionStats', sessionIds, options),
+    getGroupMyMessageCountHint: (chatroomId: string) =>
+      ipcRenderer.invoke('chat:getGroupMyMessageCountHint', chatroomId),
     getImageData: (sessionId: string, msgId: string) => ipcRenderer.invoke('chat:getImageData', sessionId, msgId),
     getVoiceData: (sessionId: string, msgId: string, createTime?: number, serverId?: string | number) =>
       ipcRenderer.invoke('chat:getVoiceData', sessionId, msgId, createTime, serverId),
     getAllVoiceMessages: (sessionId: string) => ipcRenderer.invoke('chat:getAllVoiceMessages', sessionId),
     getAllImageMessages: (sessionId: string) => ipcRenderer.invoke('chat:getAllImageMessages', sessionId),
     getMessageDates: (sessionId: string) => ipcRenderer.invoke('chat:getMessageDates', sessionId),
+    getMessageDateCounts: (sessionId: string) => ipcRenderer.invoke('chat:getMessageDateCounts', sessionId),
     resolveVoiceCache: (sessionId: string, msgId: string) => ipcRenderer.invoke('chat:resolveVoiceCache', sessionId, msgId),
     getVoiceTranscript: (sessionId: string, msgId: string, createTime?: number) => ipcRenderer.invoke('chat:getVoiceTranscript', sessionId, msgId, createTime),
     onVoiceTranscriptPartial: (callback: (payload: { msgId: string; text: string }) => void) => {
@@ -227,6 +255,10 @@ contextBridge.exposeInMainWorld('electronAPI', {
   groupAnalytics: {
     getGroupChats: () => ipcRenderer.invoke('groupAnalytics:getGroupChats'),
     getGroupMembers: (chatroomId: string) => ipcRenderer.invoke('groupAnalytics:getGroupMembers', chatroomId),
+    getGroupMembersPanelData: (
+      chatroomId: string,
+      options?: { forceRefresh?: boolean; includeMessageCounts?: boolean }
+    ) => ipcRenderer.invoke('groupAnalytics:getGroupMembersPanelData', chatroomId, options),
     getGroupMessageRanking: (chatroomId: string, limit?: number, startTime?: number, endTime?: number) => ipcRenderer.invoke('groupAnalytics:getGroupMessageRanking', chatroomId, limit, startTime, endTime),
     getGroupActiveHours: (chatroomId: string, startTime?: number, endTime?: number) => ipcRenderer.invoke('groupAnalytics:getGroupActiveHours', chatroomId, startTime, endTime),
     getGroupMediaStats: (chatroomId: string, startTime?: number, endTime?: number) => ipcRenderer.invoke('groupAnalytics:getGroupMediaStats', chatroomId, startTime, endTime),
@@ -238,9 +270,29 @@ contextBridge.exposeInMainWorld('electronAPI', {
   // 年度报告
   annualReport: {
     getAvailableYears: () => ipcRenderer.invoke('annualReport:getAvailableYears'),
+    startAvailableYearsLoad: () => ipcRenderer.invoke('annualReport:startAvailableYearsLoad'),
+    cancelAvailableYearsLoad: (taskId: string) => ipcRenderer.invoke('annualReport:cancelAvailableYearsLoad', taskId),
     generateReport: (year: number) => ipcRenderer.invoke('annualReport:generateReport', year),
     exportImages: (payload: { baseDir: string; folderName: string; images: Array<{ name: string; dataUrl: string }> }) =>
       ipcRenderer.invoke('annualReport:exportImages', payload),
+    onAvailableYearsProgress: (callback: (payload: {
+      taskId: string
+      years?: number[]
+      done: boolean
+      error?: string
+      canceled?: boolean
+      strategy?: 'cache' | 'native' | 'hybrid'
+      phase?: 'cache' | 'native' | 'scan' | 'done'
+      statusText?: string
+      nativeElapsedMs?: number
+      scanElapsedMs?: number
+      totalElapsedMs?: number
+      switched?: boolean
+      nativeTimedOut?: boolean
+    }) => void) => {
+      ipcRenderer.on('annualReport:availableYearsProgress', (_, payload) => callback(payload))
+      return () => ipcRenderer.removeAllListeners('annualReport:availableYearsProgress')
+    },
     onProgress: (callback: (payload: { status: string; progress: number }) => void) => {
       ipcRenderer.on('annualReport:progress', (_, payload) => callback(payload))
       return () => ipcRenderer.removeAllListeners('annualReport:progress')
@@ -265,7 +317,7 @@ contextBridge.exposeInMainWorld('electronAPI', {
       ipcRenderer.invoke('export:exportSession', sessionId, outputPath, options),
     exportContacts: (outputDir: string, options: any) =>
       ipcRenderer.invoke('export:exportContacts', outputDir, options),
-    onProgress: (callback: (payload: { current: number; total: number; currentSession: string; phase: string }) => void) => {
+    onProgress: (callback: (payload: { current: number; total: number; currentSession: string; currentSessionId?: string; phase: string }) => void) => {
       ipcRenderer.on('export:progress', (_, payload) => callback(payload))
       return () => ipcRenderer.removeAllListeners('export:progress')
     }
@@ -287,6 +339,8 @@ contextBridge.exposeInMainWorld('electronAPI', {
     getTimeline: (limit: number, offset: number, usernames?: string[], keyword?: string, startTime?: number, endTime?: number) =>
       ipcRenderer.invoke('sns:getTimeline', limit, offset, usernames, keyword, startTime, endTime),
     getSnsUsernames: () => ipcRenderer.invoke('sns:getSnsUsernames'),
+    getExportStatsFast: () => ipcRenderer.invoke('sns:getExportStatsFast'),
+    getExportStats: () => ipcRenderer.invoke('sns:getExportStats'),
     debugResource: (url: string) => ipcRenderer.invoke('sns:debugResource', url),
     proxyImage: (payload: { url: string; key?: string | number }) => ipcRenderer.invoke('sns:proxyImage', payload),
     downloadImage: (payload: { url: string; key?: string | number }) => ipcRenderer.invoke('sns:downloadImage', payload),

electron/services/annualReportService.ts

@@ -85,7 +85,34 @@ export interface AnnualReportData {
   } | null
 }
 
+export interface AvailableYearsLoadProgress {
+  years: number[]
+  strategy: 'cache' | 'native' | 'hybrid'
+  phase: 'cache' | 'native' | 'scan'
+  statusText: string
+  nativeElapsedMs: number
+  scanElapsedMs: number
+  totalElapsedMs: number
+  switched?: boolean
+  nativeTimedOut?: boolean
+}
+
+interface AvailableYearsLoadMeta {
+  strategy: 'cache' | 'native' | 'hybrid'
+  nativeElapsedMs: number
+  scanElapsedMs: number
+  totalElapsedMs: number
+  switched: boolean
+  nativeTimedOut: boolean
+  statusText: string
+}
+
 class AnnualReportService {
+  private readonly availableYearsCacheTtlMs = 10 * 60 * 1000
+  private readonly availableYearsScanConcurrency = 4
+  private readonly availableYearsColumnCache = new Map<string, string>()
+  private readonly availableYearsCache = new Map<string, { years: number[]; updatedAt: number }>()
+
   constructor() {
   }
 
@@ -181,6 +208,234 @@ class AnnualReportService {
     }
   }
 
+  private quoteSqlIdentifier(identifier: string): string {
+    return `"${String(identifier || '').replace(/"/g, '""')}"`
+  }
+
+  private toUnixTimestamp(value: any): number {
+    const n = Number(value)
+    if (!Number.isFinite(n) || n <= 0) return 0
+    // 兼容毫秒级时间戳
+    const seconds = n > 1e12 ? Math.floor(n / 1000) : Math.floor(n)
+    return seconds > 0 ? seconds : 0
+  }
+
+  private addYearsFromRange(years: Set<number>, firstTs: number, lastTs: number): boolean {
+    let changed = false
+    const currentYear = new Date().getFullYear()
+    const minTs = firstTs > 0 ? firstTs : lastTs
+    const maxTs = lastTs > 0 ? lastTs : firstTs
+    if (minTs <= 0 || maxTs <= 0) return changed
+
+    const minYear = new Date(minTs * 1000).getFullYear()
+    const maxYear = new Date(maxTs * 1000).getFullYear()
+    for (let y = minYear; y <= maxYear; y++) {
+      if (y >= 2010 && y <= currentYear && !years.has(y)) {
+        years.add(y)
+        changed = true
+      }
+    }
+    return changed
+  }
+
+  private normalizeAvailableYears(years: Iterable<number>): number[] {
+    return Array.from(new Set(Array.from(years)))
+      .filter((y) => Number.isFinite(y))
+      .map((y) => Math.floor(y))
+      .sort((a, b) => b - a)
+  }
+
+  private async forEachWithConcurrency<T>(
+    items: T[],
+    concurrency: number,
+    handler: (item: T, index: number) => Promise<void>,
+    shouldStop?: () => boolean
+  ): Promise<void> {
+    if (!items.length) return
+    const workerCount = Math.max(1, Math.min(concurrency, items.length))
+    let nextIndex = 0
+    const workers: Promise<void>[] = []
+
+    for (let i = 0; i < workerCount; i++) {
+      workers.push((async () => {
+        while (true) {
+          if (shouldStop?.()) break
+          const current = nextIndex
+          nextIndex += 1
+          if (current >= items.length) break
+          await handler(items[current], current)
+        }
+      })())
+    }
+
+    await Promise.all(workers)
+  }
+
+  private async detectTimeColumn(dbPath: string, tableName: string): Promise<string | null> {
+    const cacheKey = `${dbPath}\u0001${tableName}`
+    if (this.availableYearsColumnCache.has(cacheKey)) {
+      const cached = this.availableYearsColumnCache.get(cacheKey) || ''
+      return cached || null
+    }
+
+    const result = await wcdbService.execQuery('message', dbPath, `PRAGMA table_info(${this.quoteSqlIdentifier(tableName)})`)
+    if (!result.success || !Array.isArray(result.rows) || result.rows.length === 0) {
+      this.availableYearsColumnCache.set(cacheKey, '')
+      return null
+    }
+
+    const candidates = ['create_time', 'createtime', 'msg_create_time', 'msg_time', 'msgtime', 'time']
+    const columns = new Set<string>()
+    for (const row of result.rows as Record<string, any>[]) {
+      const name = String(row.name || row.column_name || row.columnName || '').trim().toLowerCase()
+      if (name) columns.add(name)
+    }
+
+    for (const candidate of candidates) {
+      if (columns.has(candidate)) {
+        this.availableYearsColumnCache.set(cacheKey, candidate)
+        return candidate
+      }
+    }
+
+    this.availableYearsColumnCache.set(cacheKey, '')
+    return null
+  }
+
+  private async getTableTimeRange(dbPath: string, tableName: string): Promise<{ first: number; last: number } | null> {
+    const cacheKey = `${dbPath}\u0001${tableName}`
+    const cachedColumn = this.availableYearsColumnCache.get(cacheKey)
+    const initialColumn = cachedColumn && cachedColumn.length > 0 ? cachedColumn : 'create_time'
+    const tried = new Set<string>()
+
+    const queryByColumn = async (column: string): Promise<{ first: number; last: number } | null> => {
+      const sql = `SELECT MIN(${this.quoteSqlIdentifier(column)}) AS first_ts, MAX(${this.quoteSqlIdentifier(column)}) AS last_ts FROM ${this.quoteSqlIdentifier(tableName)}`
+      const result = await wcdbService.execQuery('message', dbPath, sql)
+      if (!result.success || !Array.isArray(result.rows) || result.rows.length === 0) return null
+      const row = result.rows[0] as Record<string, any>
+      const first = this.toUnixTimestamp(row.first_ts ?? row.firstTs ?? row.min_ts ?? row.minTs)
+      const last = this.toUnixTimestamp(row.last_ts ?? row.lastTs ?? row.max_ts ?? row.maxTs)
+      return { first, last }
+    }
+
+    tried.add(initialColumn)
+    const quick = await queryByColumn(initialColumn)
+    if (quick) {
+      if (!cachedColumn) this.availableYearsColumnCache.set(cacheKey, initialColumn)
+      return quick
+    }
+
+    const detectedColumn = await this.detectTimeColumn(dbPath, tableName)
+    if (!detectedColumn || tried.has(detectedColumn)) {
+      return null
+    }
+
+    return queryByColumn(detectedColumn)
+  }
+
+  private async getAvailableYearsByTableScan(
+    sessionIds: string[],
+    options?: { onProgress?: (years: number[]) => void; shouldCancel?: () => boolean }
+  ): Promise<number[]> {
+    const years = new Set<number>()
+    let lastEmittedSize = 0
+
+    const emitIfChanged = (force = false) => {
+      if (!options?.onProgress) return
+      const next = this.normalizeAvailableYears(years)
+      if (!force && next.length === lastEmittedSize) return
+      options.onProgress(next)
+      lastEmittedSize = next.length
+    }
+
+    const shouldCancel = () => options?.shouldCancel?.() === true
+
+    await this.forEachWithConcurrency(sessionIds, this.availableYearsScanConcurrency, async (sessionId) => {
+      if (shouldCancel()) return
+      const tableStats = await wcdbService.getMessageTableStats(sessionId)
+      if (!tableStats.success || !Array.isArray(tableStats.tables) || tableStats.tables.length === 0) {
+        return
+      }
+
+      for (const table of tableStats.tables as Record<string, any>[]) {
+        if (shouldCancel()) return
+        const tableName = String(table.table_name || table.name || '').trim()
+        const dbPath = String(table.db_path || table.dbPath || '').trim()
+        if (!tableName || !dbPath) continue
+
+        const range = await this.getTableTimeRange(dbPath, tableName)
+        if (!range) continue
+        const changed = this.addYearsFromRange(years, range.first, range.last)
+        if (changed) emitIfChanged()
+      }
+    }, shouldCancel)
+
+    emitIfChanged(true)
+    return this.normalizeAvailableYears(years)
+  }
+
+  private async getAvailableYearsByEdgeScan(
+    sessionIds: string[],
+    options?: { onProgress?: (years: number[]) => void; shouldCancel?: () => boolean }
+  ): Promise<number[]> {
+    const years = new Set<number>()
+    let lastEmittedSize = 0
+    const shouldCancel = () => options?.shouldCancel?.() === true
+
+    const emitIfChanged = (force = false) => {
+      if (!options?.onProgress) return
+      const next = this.normalizeAvailableYears(years)
+      if (!force && next.length === lastEmittedSize) return
+      options.onProgress(next)
+      lastEmittedSize = next.length
+    }
+
+    for (const sessionId of sessionIds) {
+      if (shouldCancel()) break
+      const first = await this.getEdgeMessageTime(sessionId, true)
+      const last = await this.getEdgeMessageTime(sessionId, false)
+      const changed = this.addYearsFromRange(years, first || 0, last || 0)
+      if (changed) emitIfChanged()
+    }
+    emitIfChanged(true)
+    return this.normalizeAvailableYears(years)
+  }
+
+  private buildAvailableYearsCacheKey(dbPath: string, cleanedWxid: string): string {
+    return `${dbPath}\u0001${cleanedWxid}`
+  }
+
+  private getCachedAvailableYears(cacheKey: string): number[] | null {
+    const cached = this.availableYearsCache.get(cacheKey)
+    if (!cached) return null
+    if (Date.now() - cached.updatedAt > this.availableYearsCacheTtlMs) {
+      this.availableYearsCache.delete(cacheKey)
+      return null
+    }
+    return [...cached.years]
+  }
+
+  private setCachedAvailableYears(cacheKey: string, years: number[]): void {
+    const normalized = this.normalizeAvailableYears(years)
+
+    this.availableYearsCache.set(cacheKey, {
+      years: normalized,
+      updatedAt: Date.now()
+    })
+
+    if (this.availableYearsCache.size > 8) {
+      let oldestKey = ''
+      let oldestTime = Number.POSITIVE_INFINITY
+      for (const [key, val] of this.availableYearsCache) {
+        if (val.updatedAt < oldestTime) {
+          oldestTime = val.updatedAt
+          oldestKey = key
+        }
+      }
+      if (oldestKey) this.availableYearsCache.delete(oldestKey)
+    }
+  }
+
   private decodeMessageContent(messageContent: any, compressContent: any): string {
     let content = this.decodeMaybeCompressed(compressContent)
     if (!content || content.length === 0) {
@@ -359,38 +614,226 @@ class AnnualReportService {
     return { sessionId: bestSessionId, days: bestDays, start: bestStart, end: bestEnd }
   }
 
-  async getAvailableYears(params: { dbPath: string; decryptKey: string; wxid: string }): Promise<{ success: boolean; data?: number[]; error?: string }> {
+  async getAvailableYears(params: {
+    dbPath: string
+    decryptKey: string
+    wxid: string
+    onProgress?: (payload: AvailableYearsLoadProgress) => void
+    shouldCancel?: () => boolean
+    nativeTimeoutMs?: number
+  }): Promise<{ success: boolean; data?: number[]; error?: string; meta?: AvailableYearsLoadMeta }> {
     try {
+      const isCancelled = () => params.shouldCancel?.() === true
+      const totalStartedAt = Date.now()
+      let nativeElapsedMs = 0
+      let scanElapsedMs = 0
+      let switched = false
+      let nativeTimedOut = false
+      let latestYears: number[] = []
+
+      const emitProgress = (payload: {
+        years?: number[]
+        strategy: 'cache' | 'native' | 'hybrid'
+        phase: 'cache' | 'native' | 'scan'
+        statusText: string
+        switched?: boolean
+        nativeTimedOut?: boolean
+      }) => {
+        if (!params.onProgress) return
+        if (Array.isArray(payload.years)) latestYears = payload.years
+        params.onProgress({
+          years: latestYears,
+          strategy: payload.strategy,
+          phase: payload.phase,
+          statusText: payload.statusText,
+          nativeElapsedMs,
+          scanElapsedMs,
+          totalElapsedMs: Date.now() - totalStartedAt,
+          switched: payload.switched ?? switched,
+          nativeTimedOut: payload.nativeTimedOut ?? nativeTimedOut
+        })
+      }
+
+      const buildMeta = (
+        strategy: 'cache' | 'native' | 'hybrid',
+        statusText: string
+      ): AvailableYearsLoadMeta => ({
+        strategy,
+        nativeElapsedMs,
+        scanElapsedMs,
+        totalElapsedMs: Date.now() - totalStartedAt,
+        switched,
+        nativeTimedOut,
+        statusText
+      })
+
       const conn = await this.ensureConnectedWithConfig(params.dbPath, params.decryptKey, params.wxid)
-      if (!conn.success || !conn.cleanedWxid) return { success: false, error: conn.error }
-
-      const sessionIds = await this.getPrivateSessions(conn.cleanedWxid)
-      if (sessionIds.length === 0) {
-        return { success: false, error: '未找到消息会话' }
-      }
-
-      const fastYears = await wcdbService.getAvailableYears(sessionIds)
-      if (fastYears.success && fastYears.data) {
-        return { success: true, data: fastYears.data }
-      }
-
-      const years = new Set<number>()
-      for (const sessionId of sessionIds) {
-        const first = await this.getEdgeMessageTime(sessionId, true)
-        const last = await this.getEdgeMessageTime(sessionId, false)
-        if (!first && !last) continue
-
-        const minYear = new Date((first || last || 0) * 1000).getFullYear()
-        const maxYear = new Date((last || first || 0) * 1000).getFullYear()
-        for (let y = minYear; y <= maxYear; y++) {
-          if (y >= 2010 && y <= new Date().getFullYear()) years.add(y)
+      if (!conn.success || !conn.cleanedWxid) return { success: false, error: conn.error, meta: buildMeta('hybrid', '连接数据库失败') }
+      if (isCancelled()) return { success: false, error: '已取消加载年份数据', meta: buildMeta('hybrid', '已取消加载年份数据') }
+      const cacheKey = this.buildAvailableYearsCacheKey(params.dbPath, conn.cleanedWxid)
+      const cached = this.getCachedAvailableYears(cacheKey)
+      if (cached) {
+        latestYears = cached
+        emitProgress({
+          years: cached,
+          strategy: 'cache',
+          phase: 'cache',
+          statusText: '命中缓存，已快速加载年份数据'
+        })
+        return {
+          success: true,
+          data: cached,
+          meta: buildMeta('cache', '命中缓存，已快速加载年份数据')
         }
       }
 
-      const sortedYears = Array.from(years).sort((a, b) => b - a)
-      return { success: true, data: sortedYears }
+      const sessionIds = await this.getPrivateSessions(conn.cleanedWxid)
+      if (sessionIds.length === 0) {
+        return { success: false, error: '未找到消息会话', meta: buildMeta('hybrid', '未找到消息会话') }
+      }
+      if (isCancelled()) return { success: false, error: '已取消加载年份数据', meta: buildMeta('hybrid', '已取消加载年份数据') }
+
+      const nativeTimeoutMs = Math.max(1000, Math.floor(params.nativeTimeoutMs || 5000))
+      const nativeStartedAt = Date.now()
+      let nativeTicker: ReturnType<typeof setInterval> | null = null
+
+      emitProgress({
+        strategy: 'native',
+        phase: 'native',
+        statusText: '正在使用原生快速模式加载年份...'
+      })
+      nativeTicker = setInterval(() => {
+        nativeElapsedMs = Date.now() - nativeStartedAt
+        emitProgress({
+          strategy: 'native',
+          phase: 'native',
+          statusText: '正在使用原生快速模式加载年份...'
+        })
+      }, 120)
+
+      const nativeRace = await Promise.race([
+        wcdbService.getAvailableYears(sessionIds)
+          .then((result) => ({ kind: 'result' as const, result }))
+          .catch((error) => ({ kind: 'error' as const, error: String(error) })),
+        new Promise<{ kind: 'timeout' }>((resolve) => setTimeout(() => resolve({ kind: 'timeout' }), nativeTimeoutMs))
+      ])
+
+      if (nativeTicker) {
+        clearInterval(nativeTicker)
+        nativeTicker = null
+      }
+      nativeElapsedMs = Math.max(nativeElapsedMs, Date.now() - nativeStartedAt)
+
+      if (isCancelled()) return { success: false, error: '已取消加载年份数据', meta: buildMeta('hybrid', '已取消加载年份数据') }
+
+      if (nativeRace.kind === 'result' && nativeRace.result.success && Array.isArray(nativeRace.result.data) && nativeRace.result.data.length > 0) {
+        const years = this.normalizeAvailableYears(nativeRace.result.data)
+        latestYears = years
+        this.setCachedAvailableYears(cacheKey, years)
+        emitProgress({
+          years,
+          strategy: 'native',
+          phase: 'native',
+          statusText: '原生快速模式加载完成'
+        })
+        return {
+          success: true,
+          data: years,
+          meta: buildMeta('native', '原生快速模式加载完成')
+        }
+      }
+
+      switched = true
+      nativeTimedOut = nativeRace.kind === 'timeout'
+      emitProgress({
+        strategy: 'hybrid',
+        phase: 'native',
+        statusText: nativeTimedOut
+          ? '原生快速模式超时，已自动切换到扫表兼容模式...'
+          : '原生快速模式不可用，已自动切换到扫表兼容模式...',
+        switched: true,
+        nativeTimedOut
+      })
+
+      const scanStartedAt = Date.now()
+      let scanTicker: ReturnType<typeof setInterval> | null = null
+      scanTicker = setInterval(() => {
+        scanElapsedMs = Date.now() - scanStartedAt
+        emitProgress({
+          strategy: 'hybrid',
+          phase: 'scan',
+          statusText: nativeTimedOut
+            ? '原生已超时，正在使用扫表兼容模式加载年份...'
+            : '正在使用扫表兼容模式加载年份...',
+          switched: true,
+          nativeTimedOut
+        })
+      }, 120)
+
+      let years = await this.getAvailableYearsByTableScan(sessionIds, {
+        onProgress: (items) => {
+          latestYears = items
+          scanElapsedMs = Date.now() - scanStartedAt
+          emitProgress({
+            years: items,
+            strategy: 'hybrid',
+            phase: 'scan',
+            statusText: nativeTimedOut
+              ? '原生已超时，正在使用扫表兼容模式加载年份...'
+              : '正在使用扫表兼容模式加载年份...',
+            switched: true,
+            nativeTimedOut
+          })
+        },
+        shouldCancel: params.shouldCancel
+      })
+
+      if (isCancelled()) {
+        if (scanTicker) clearInterval(scanTicker)
+        return { success: false, error: '已取消加载年份数据', meta: buildMeta('hybrid', '已取消加载年份数据') }
+      }
+      if (years.length === 0) {
+        years = await this.getAvailableYearsByEdgeScan(sessionIds, {
+          onProgress: (items) => {
+            latestYears = items
+            scanElapsedMs = Date.now() - scanStartedAt
+            emitProgress({
+              years: items,
+              strategy: 'hybrid',
+              phase: 'scan',
+              statusText: '扫表结果为空，正在执行游标兜底扫描...',
+              switched: true,
+              nativeTimedOut
+            })
+          },
+          shouldCancel: params.shouldCancel
+        })
+      }
+      if (scanTicker) {
+        clearInterval(scanTicker)
+        scanTicker = null
+      }
+      scanElapsedMs = Math.max(scanElapsedMs, Date.now() - scanStartedAt)
+
+      if (isCancelled()) return { success: false, error: '已取消加载年份数据', meta: buildMeta('hybrid', '已取消加载年份数据') }
+
+      this.setCachedAvailableYears(cacheKey, years)
+      latestYears = years
+      emitProgress({
+        years,
+        strategy: 'hybrid',
+        phase: 'scan',
+        statusText: '扫表兼容模式加载完成',
+        switched: true,
+        nativeTimedOut
+      })
+      return {
+        success: true,
+        data: years,
+        meta: buildMeta('hybrid', '扫表兼容模式加载完成')
+      }
     } catch (e) {
-      return { success: false, error: String(e) }
+      return { success: false, error: String(e), meta: { strategy: 'hybrid', nativeElapsedMs: 0, scanElapsedMs: 0, totalElapsedMs: 0, switched: false, nativeTimedOut: false, statusText: '加载年度数据失败' } }
     }
   }
 

electron/services/config.ts

@@ -105,7 +105,7 @@ export class ConfigService {
         whisperDownloadSource: 'tsinghua',
         autoTranscribeVoice: false,
         transcribeLanguages: ['zh'],
-        exportDefaultConcurrency: 2,
+        exportDefaultConcurrency: 4,
         analyticsExcludedUsernames: [],
         authEnabled: false,
         authPassword: '',
@@ -671,4 +671,4 @@ export class ConfigService {
     this.unlockedKeys.clear()
     this.unlockPassword = null
   }
-}
+}

electron/services/exportCardDiagnosticsService.ts

@@ -0,0 +1,354 @@
+import { mkdir, writeFile } from 'fs/promises'
+import { basename, dirname, extname, join } from 'path'
+
+export type ExportCardDiagSource = 'frontend' | 'main' | 'backend' | 'worker'
+export type ExportCardDiagLevel = 'debug' | 'info' | 'warn' | 'error'
+export type ExportCardDiagStatus = 'running' | 'done' | 'failed' | 'timeout'
+
+export interface ExportCardDiagLogEntry {
+  id: string
+  ts: number
+  source: ExportCardDiagSource
+  level: ExportCardDiagLevel
+  message: string
+  traceId?: string
+  stepId?: string
+  stepName?: string
+  status?: ExportCardDiagStatus
+  durationMs?: number
+  data?: Record<string, unknown>
+}
+
+interface ActiveStepState {
+  key: string
+  traceId: string
+  stepId: string
+  stepName: string
+  source: ExportCardDiagSource
+  startedAt: number
+  lastUpdatedAt: number
+  message?: string
+}
+
+interface StepStartInput {
+  traceId: string
+  stepId: string
+  stepName: string
+  source: ExportCardDiagSource
+  level?: ExportCardDiagLevel
+  message?: string
+  data?: Record<string, unknown>
+}
+
+interface StepEndInput {
+  traceId: string
+  stepId: string
+  stepName: string
+  source: ExportCardDiagSource
+  status?: Extract<ExportCardDiagStatus, 'done' | 'failed' | 'timeout'>
+  level?: ExportCardDiagLevel
+  message?: string
+  data?: Record<string, unknown>
+  durationMs?: number
+}
+
+interface LogInput {
+  ts?: number
+  source: ExportCardDiagSource
+  level?: ExportCardDiagLevel
+  message: string
+  traceId?: string
+  stepId?: string
+  stepName?: string
+  status?: ExportCardDiagStatus
+  durationMs?: number
+  data?: Record<string, unknown>
+}
+
+export interface ExportCardDiagSnapshot {
+  logs: ExportCardDiagLogEntry[]
+  activeSteps: Array<{
+    traceId: string
+    stepId: string
+    stepName: string
+    source: ExportCardDiagSource
+    elapsedMs: number
+    stallMs: number
+    startedAt: number
+    lastUpdatedAt: number
+    message?: string
+  }>
+  summary: {
+    totalLogs: number
+    activeStepCount: number
+    errorCount: number
+    warnCount: number
+    timeoutCount: number
+    lastUpdatedAt: number
+  }
+}
+
+export class ExportCardDiagnosticsService {
+  private readonly maxLogs = 6000
+  private logs: ExportCardDiagLogEntry[] = []
+  private activeSteps = new Map<string, ActiveStepState>()
+  private seq = 0
+
+  private nextId(ts: number): string {
+    this.seq += 1
+    return `export-card-diag-${ts}-${this.seq}`
+  }
+
+  private trimLogs() {
+    if (this.logs.length <= this.maxLogs) return
+    const drop = this.logs.length - this.maxLogs
+    this.logs.splice(0, drop)
+  }
+
+  log(input: LogInput): ExportCardDiagLogEntry {
+    const ts = Number.isFinite(input.ts) ? Math.max(0, Math.floor(input.ts as number)) : Date.now()
+    const entry: ExportCardDiagLogEntry = {
+      id: this.nextId(ts),
+      ts,
+      source: input.source,
+      level: input.level || 'info',
+      message: input.message,
+      traceId: input.traceId,
+      stepId: input.stepId,
+      stepName: input.stepName,
+      status: input.status,
+      durationMs: Number.isFinite(input.durationMs) ? Math.max(0, Math.floor(input.durationMs as number)) : undefined,
+      data: input.data
+    }
+
+    this.logs.push(entry)
+    this.trimLogs()
+
+    if (entry.traceId && entry.stepId && entry.stepName) {
+      const key = `${entry.traceId}::${entry.stepId}`
+      if (entry.status === 'running') {
+        const previous = this.activeSteps.get(key)
+        this.activeSteps.set(key, {
+          key,
+          traceId: entry.traceId,
+          stepId: entry.stepId,
+          stepName: entry.stepName,
+          source: entry.source,
+          startedAt: previous?.startedAt || entry.ts,
+          lastUpdatedAt: entry.ts,
+          message: entry.message
+        })
+      } else if (entry.status === 'done' || entry.status === 'failed' || entry.status === 'timeout') {
+        this.activeSteps.delete(key)
+      }
+    }
+
+    return entry
+  }
+
+  stepStart(input: StepStartInput): ExportCardDiagLogEntry {
+    return this.log({
+      source: input.source,
+      level: input.level || 'info',
+      message: input.message || `${input.stepName} 开始`,
+      traceId: input.traceId,
+      stepId: input.stepId,
+      stepName: input.stepName,
+      status: 'running',
+      data: input.data
+    })
+  }
+
+  stepEnd(input: StepEndInput): ExportCardDiagLogEntry {
+    return this.log({
+      source: input.source,
+      level: input.level || (input.status === 'done' ? 'info' : 'warn'),
+      message: input.message || `${input.stepName} ${input.status === 'done' ? '完成' : '结束'}`,
+      traceId: input.traceId,
+      stepId: input.stepId,
+      stepName: input.stepName,
+      status: input.status || 'done',
+      durationMs: input.durationMs,
+      data: input.data
+    })
+  }
+
+  clear() {
+    this.logs = []
+    this.activeSteps.clear()
+  }
+
+  snapshot(limit = 1200): ExportCardDiagSnapshot {
+    const capped = Number.isFinite(limit) ? Math.max(100, Math.min(5000, Math.floor(limit))) : 1200
+    const logs = this.logs.slice(-capped)
+    const now = Date.now()
+
+    const activeSteps = Array.from(this.activeSteps.values())
+      .map(step => ({
+        traceId: step.traceId,
+        stepId: step.stepId,
+        stepName: step.stepName,
+        source: step.source,
+        startedAt: step.startedAt,
+        lastUpdatedAt: step.lastUpdatedAt,
+        elapsedMs: Math.max(0, now - step.startedAt),
+        stallMs: Math.max(0, now - step.lastUpdatedAt),
+        message: step.message
+      }))
+      .sort((a, b) => b.lastUpdatedAt - a.lastUpdatedAt)
+
+    let errorCount = 0
+    let warnCount = 0
+    let timeoutCount = 0
+    for (const item of logs) {
+      if (item.level === 'error') errorCount += 1
+      if (item.level === 'warn') warnCount += 1
+      if (item.status === 'timeout') timeoutCount += 1
+    }
+
+    return {
+      logs,
+      activeSteps,
+      summary: {
+        totalLogs: this.logs.length,
+        activeStepCount: activeSteps.length,
+        errorCount,
+        warnCount,
+        timeoutCount,
+        lastUpdatedAt: logs.length > 0 ? logs[logs.length - 1].ts : 0
+      }
+    }
+  }
+
+  private normalizeExternalLogs(value: unknown[]): ExportCardDiagLogEntry[] {
+    const result: ExportCardDiagLogEntry[] = []
+    for (const item of value) {
+      if (!item || typeof item !== 'object') continue
+      const row = item as Record<string, unknown>
+      const tsRaw = row.ts ?? row.timestamp
+      const tsNum = Number(tsRaw)
+      const ts = Number.isFinite(tsNum) && tsNum > 0 ? Math.floor(tsNum) : Date.now()
+
+      const sourceRaw = String(row.source || 'frontend')
+      const source: ExportCardDiagSource = sourceRaw === 'main' || sourceRaw === 'backend' || sourceRaw === 'worker'
+        ? sourceRaw
+        : 'frontend'
+      const levelRaw = String(row.level || 'info')
+      const level: ExportCardDiagLevel = levelRaw === 'debug' || levelRaw === 'warn' || levelRaw === 'error'
+        ? levelRaw
+        : 'info'
+
+      const statusRaw = String(row.status || '')
+      const status: ExportCardDiagStatus | undefined = statusRaw === 'running' || statusRaw === 'done' || statusRaw === 'failed' || statusRaw === 'timeout'
+        ? statusRaw
+        : undefined
+
+      const durationRaw = Number(row.durationMs)
+      result.push({
+        id: String(row.id || this.nextId(ts)),
+        ts,
+        source,
+        level,
+        message: String(row.message || ''),
+        traceId: typeof row.traceId === 'string' ? row.traceId : undefined,
+        stepId: typeof row.stepId === 'string' ? row.stepId : undefined,
+        stepName: typeof row.stepName === 'string' ? row.stepName : undefined,
+        status,
+        durationMs: Number.isFinite(durationRaw) ? Math.max(0, Math.floor(durationRaw)) : undefined,
+        data: row.data && typeof row.data === 'object' ? row.data as Record<string, unknown> : undefined
+      })
+    }
+    return result
+  }
+
+  private serializeLogEntry(log: ExportCardDiagLogEntry): string {
+    return JSON.stringify(log)
+  }
+
+  private buildSummaryText(logs: ExportCardDiagLogEntry[], activeSteps: ExportCardDiagSnapshot['activeSteps']): string {
+    const total = logs.length
+    let errorCount = 0
+    let warnCount = 0
+    let timeoutCount = 0
+    let frontendCount = 0
+    let backendCount = 0
+    let mainCount = 0
+    let workerCount = 0
+
+    for (const item of logs) {
+      if (item.level === 'error') errorCount += 1
+      if (item.level === 'warn') warnCount += 1
+      if (item.status === 'timeout') timeoutCount += 1
+      if (item.source === 'frontend') frontendCount += 1
+      if (item.source === 'backend') backendCount += 1
+      if (item.source === 'main') mainCount += 1
+      if (item.source === 'worker') workerCount += 1
+    }
+
+    const lines: string[] = []
+    lines.push('WeFlow 导出卡片诊断摘要')
+    lines.push(`生成时间: ${new Date().toLocaleString('zh-CN')}`)
+    lines.push(`日志总数: ${total}`)
+    lines.push(`来源统计: frontend=${frontendCount}, main=${mainCount}, backend=${backendCount}, worker=${workerCount}`)
+    lines.push(`级别统计: warn=${warnCount}, error=${errorCount}, timeout=${timeoutCount}`)
+    lines.push(`当前活跃步骤: ${activeSteps.length}`)
+
+    if (activeSteps.length > 0) {
+      lines.push('')
+      lines.push('活跃步骤:')
+      for (const step of activeSteps.slice(0, 12)) {
+        lines.push(`- [${step.source}] ${step.stepName} trace=${step.traceId} elapsed=${step.elapsedMs}ms stall=${step.stallMs}ms`)
+      }
+    }
+
+    const latestErrors = logs.filter(item => item.level === 'error' || item.status === 'failed' || item.status === 'timeout').slice(-12)
+    if (latestErrors.length > 0) {
+      lines.push('')
+      lines.push('最近异常:')
+      for (const item of latestErrors) {
+        lines.push(`- ${new Date(item.ts).toLocaleTimeString('zh-CN')} [${item.source}] ${item.stepName || item.stepId || 'unknown'} ${item.status || item.level} ${item.message}`)
+      }
+    }
+
+    return lines.join('\n')
+  }
+
+  async exportCombinedLogs(filePath: string, frontendLogs: unknown[] = []): Promise<{
+    success: boolean
+    filePath?: string
+    summaryPath?: string
+    count?: number
+    error?: string
+  }> {
+    try {
+      const normalizedFrontend = this.normalizeExternalLogs(Array.isArray(frontendLogs) ? frontendLogs : [])
+      const merged = [...this.logs, ...normalizedFrontend]
+        .sort((a, b) => (a.ts - b.ts) || a.id.localeCompare(b.id))
+
+      const lines = merged.map(item => this.serializeLogEntry(item)).join('\n')
+      await mkdir(dirname(filePath), { recursive: true })
+      await writeFile(filePath, lines ? `${lines}\n` : '', 'utf8')
+
+      const ext = extname(filePath)
+      const baseName = ext ? basename(filePath, ext) : basename(filePath)
+      const summaryPath = join(dirname(filePath), `${baseName}.txt`)
+      const snapshot = this.snapshot(1500)
+      const summaryText = this.buildSummaryText(merged, snapshot.activeSteps)
+      await writeFile(summaryPath, summaryText, 'utf8')
+
+      return {
+        success: true,
+        filePath,
+        summaryPath,
+        count: merged.length
+      }
+    } catch (error) {
+      return {
+        success: false,
+        error: String(error)
+      }
+    }
+  }
+}
+
+export const exportCardDiagnosticsService = new ExportCardDiagnosticsService()

electron/services/exportContentStatsCacheService.ts

@@ -0,0 +1,229 @@
+import { join, dirname } from 'path'
+import { existsSync, mkdirSync, readFileSync, rmSync, writeFileSync } from 'fs'
+import { ConfigService } from './config'
+
+const CACHE_VERSION = 1
+const MAX_SCOPE_ENTRIES = 12
+const MAX_SESSION_ENTRIES_PER_SCOPE = 6000
+
+export interface ExportContentSessionStatsEntry {
+  updatedAt: number
+  hasAny: boolean
+  hasVoice: boolean
+  hasImage: boolean
+  hasVideo: boolean
+  hasEmoji: boolean
+  mediaReady: boolean
+}
+
+export interface ExportContentScopeStatsEntry {
+  updatedAt: number
+  sessions: Record<string, ExportContentSessionStatsEntry>
+}
+
+interface ExportContentStatsStore {
+  version: number
+  scopes: Record<string, ExportContentScopeStatsEntry>
+}
+
+function toNonNegativeInt(value: unknown): number | undefined {
+  if (typeof value !== 'number' || !Number.isFinite(value)) return undefined
+  return Math.max(0, Math.floor(value))
+}
+
+function toBoolean(value: unknown, fallback = false): boolean {
+  if (typeof value === 'boolean') return value
+  return fallback
+}
+
+function normalizeSessionStatsEntry(raw: unknown): ExportContentSessionStatsEntry | null {
+  if (!raw || typeof raw !== 'object') return null
+  const source = raw as Record<string, unknown>
+  const updatedAt = toNonNegativeInt(source.updatedAt)
+  if (updatedAt === undefined) return null
+  return {
+    updatedAt,
+    hasAny: toBoolean(source.hasAny, false),
+    hasVoice: toBoolean(source.hasVoice, false),
+    hasImage: toBoolean(source.hasImage, false),
+    hasVideo: toBoolean(source.hasVideo, false),
+    hasEmoji: toBoolean(source.hasEmoji, false),
+    mediaReady: toBoolean(source.mediaReady, false)
+  }
+}
+
+function normalizeScopeStatsEntry(raw: unknown): ExportContentScopeStatsEntry | null {
+  if (!raw || typeof raw !== 'object') return null
+  const source = raw as Record<string, unknown>
+  const updatedAt = toNonNegativeInt(source.updatedAt)
+  if (updatedAt === undefined) return null
+
+  const sessionsRaw = source.sessions
+  if (!sessionsRaw || typeof sessionsRaw !== 'object') {
+    return {
+      updatedAt,
+      sessions: {}
+    }
+  }
+
+  const sessions: Record<string, ExportContentSessionStatsEntry> = {}
+  for (const [sessionId, entryRaw] of Object.entries(sessionsRaw as Record<string, unknown>)) {
+    const normalized = normalizeSessionStatsEntry(entryRaw)
+    if (!normalized) continue
+    sessions[sessionId] = normalized
+  }
+
+  return {
+    updatedAt,
+    sessions
+  }
+}
+
+function cloneScope(scope: ExportContentScopeStatsEntry): ExportContentScopeStatsEntry {
+  return {
+    updatedAt: scope.updatedAt,
+    sessions: Object.fromEntries(
+      Object.entries(scope.sessions).map(([sessionId, entry]) => [sessionId, { ...entry }])
+    )
+  }
+}
+
+export class ExportContentStatsCacheService {
+  private readonly cacheFilePath: string
+  private store: ExportContentStatsStore = {
+    version: CACHE_VERSION,
+    scopes: {}
+  }
+
+  constructor(cacheBasePath?: string) {
+    const basePath = cacheBasePath && cacheBasePath.trim().length > 0
+      ? cacheBasePath
+      : ConfigService.getInstance().getCacheBasePath()
+    this.cacheFilePath = join(basePath, 'export-content-stats.json')
+    this.ensureCacheDir()
+    this.load()
+  }
+
+  private ensureCacheDir(): void {
+    const dir = dirname(this.cacheFilePath)
+    if (!existsSync(dir)) {
+      mkdirSync(dir, { recursive: true })
+    }
+  }
+
+  private load(): void {
+    if (!existsSync(this.cacheFilePath)) return
+    try {
+      const raw = readFileSync(this.cacheFilePath, 'utf8')
+      const parsed = JSON.parse(raw) as unknown
+      if (!parsed || typeof parsed !== 'object') {
+        this.store = { version: CACHE_VERSION, scopes: {} }
+        return
+      }
+
+      const payload = parsed as Record<string, unknown>
+      const scopesRaw = payload.scopes
+      if (!scopesRaw || typeof scopesRaw !== 'object') {
+        this.store = { version: CACHE_VERSION, scopes: {} }
+        return
+      }
+
+      const scopes: Record<string, ExportContentScopeStatsEntry> = {}
+      for (const [scopeKey, scopeRaw] of Object.entries(scopesRaw as Record<string, unknown>)) {
+        const normalizedScope = normalizeScopeStatsEntry(scopeRaw)
+        if (!normalizedScope) continue
+        scopes[scopeKey] = normalizedScope
+      }
+
+      this.store = {
+        version: CACHE_VERSION,
+        scopes
+      }
+    } catch (error) {
+      console.error('ExportContentStatsCacheService: 载入缓存失败', error)
+      this.store = { version: CACHE_VERSION, scopes: {} }
+    }
+  }
+
+  getScope(scopeKey: string): ExportContentScopeStatsEntry | undefined {
+    if (!scopeKey) return undefined
+    const rawScope = this.store.scopes[scopeKey]
+    if (!rawScope) return undefined
+    const normalizedScope = normalizeScopeStatsEntry(rawScope)
+    if (!normalizedScope) {
+      delete this.store.scopes[scopeKey]
+      this.persist()
+      return undefined
+    }
+    this.store.scopes[scopeKey] = normalizedScope
+    return cloneScope(normalizedScope)
+  }
+
+  setScope(scopeKey: string, scope: ExportContentScopeStatsEntry): void {
+    if (!scopeKey) return
+    const normalized = normalizeScopeStatsEntry(scope)
+    if (!normalized) return
+    this.store.scopes[scopeKey] = normalized
+    this.trimScope(scopeKey)
+    this.trimScopes()
+    this.persist()
+  }
+
+  deleteSession(scopeKey: string, sessionId: string): void {
+    if (!scopeKey || !sessionId) return
+    const scope = this.store.scopes[scopeKey]
+    if (!scope) return
+    if (!(sessionId in scope.sessions)) return
+    delete scope.sessions[sessionId]
+    if (Object.keys(scope.sessions).length === 0) {
+      delete this.store.scopes[scopeKey]
+    } else {
+      scope.updatedAt = Date.now()
+    }
+    this.persist()
+  }
+
+  clearScope(scopeKey: string): void {
+    if (!scopeKey) return
+    if (!this.store.scopes[scopeKey]) return
+    delete this.store.scopes[scopeKey]
+    this.persist()
+  }
+
+  clearAll(): void {
+    this.store = { version: CACHE_VERSION, scopes: {} }
+    try {
+      rmSync(this.cacheFilePath, { force: true })
+    } catch (error) {
+      console.error('ExportContentStatsCacheService: 清理缓存失败', error)
+    }
+  }
+
+  private trimScope(scopeKey: string): void {
+    const scope = this.store.scopes[scopeKey]
+    if (!scope) return
+
+    const entries = Object.entries(scope.sessions)
+    if (entries.length <= MAX_SESSION_ENTRIES_PER_SCOPE) return
+
+    entries.sort((a, b) => b[1].updatedAt - a[1].updatedAt)
+    scope.sessions = Object.fromEntries(entries.slice(0, MAX_SESSION_ENTRIES_PER_SCOPE))
+  }
+
+  private trimScopes(): void {
+    const scopeEntries = Object.entries(this.store.scopes)
+    if (scopeEntries.length <= MAX_SCOPE_ENTRIES) return
+
+    scopeEntries.sort((a, b) => b[1].updatedAt - a[1].updatedAt)
+    this.store.scopes = Object.fromEntries(scopeEntries.slice(0, MAX_SCOPE_ENTRIES))
+  }
+
+  private persist(): void {
+    try {
+      this.ensureCacheDir()
+      writeFileSync(this.cacheFilePath, JSON.stringify(this.store), 'utf8')
+    } catch (error) {
+      console.error('ExportContentStatsCacheService: 持久化缓存失败', error)
+    }
+  }
+}

electron/services/exportRecordService.ts

@@ -0,0 +1,95 @@
+import { app } from 'electron'
+import fs from 'fs'
+import path from 'path'
+
+export interface ExportRecord {
+  exportTime: number
+  format: string
+  messageCount: number
+  sourceLatestMessageTimestamp?: number
+  outputPath?: string
+}
+
+type RecordStore = Record<string, ExportRecord[]>
+
+class ExportRecordService {
+  private filePath: string | null = null
+  private loaded = false
+  private store: RecordStore = {}
+
+  private resolveFilePath(): string {
+    if (this.filePath) return this.filePath
+    const userDataPath = app.getPath('userData')
+    fs.mkdirSync(userDataPath, { recursive: true })
+    this.filePath = path.join(userDataPath, 'weflow-export-records.json')
+    return this.filePath
+  }
+
+  private ensureLoaded(): void {
+    if (this.loaded) return
+    this.loaded = true
+    const filePath = this.resolveFilePath()
+    try {
+      if (!fs.existsSync(filePath)) return
+      const raw = fs.readFileSync(filePath, 'utf-8')
+      const parsed = JSON.parse(raw)
+      if (parsed && typeof parsed === 'object') {
+        this.store = parsed as RecordStore
+      }
+    } catch {
+      this.store = {}
+    }
+  }
+
+  private persist(): void {
+    try {
+      const filePath = this.resolveFilePath()
+      fs.writeFileSync(filePath, JSON.stringify(this.store), 'utf-8')
+    } catch {
+      // ignore persist errors to avoid blocking export flow
+    }
+  }
+
+  getLatestRecord(sessionId: string, format: string): ExportRecord | null {
+    this.ensureLoaded()
+    const records = this.store[sessionId]
+    if (!records || records.length === 0) return null
+    for (let i = records.length - 1; i >= 0; i--) {
+      const record = records[i]
+      if (record && record.format === format) return record
+    }
+    return null
+  }
+
+  saveRecord(
+    sessionId: string,
+    format: string,
+    messageCount: number,
+    extra?: {
+      sourceLatestMessageTimestamp?: number
+      outputPath?: string
+    }
+  ): void {
+    this.ensureLoaded()
+    const normalizedSessionId = String(sessionId || '').trim()
+    if (!normalizedSessionId) return
+    if (!this.store[normalizedSessionId]) {
+      this.store[normalizedSessionId] = []
+    }
+    const list = this.store[normalizedSessionId]
+    list.push({
+      exportTime: Date.now(),
+      format,
+      messageCount,
+      sourceLatestMessageTimestamp: extra?.sourceLatestMessageTimestamp,
+      outputPath: extra?.outputPath
+    })
+    // keep the latest 30 records per session
+    if (list.length > 30) {
+      this.store[normalizedSessionId] = list.slice(-30)
+    }
+    this.persist()
+  }
+}
+
+export const exportRecordService = new ExportRecordService()

electron/services/groupAnalyticsService.ts

@@ -21,6 +21,12 @@ export interface GroupMember {
   alias?: string
   remark?: string
   groupNickname?: string
+  isOwner?: boolean
+}
+
+export interface GroupMembersPanelEntry extends GroupMember {
+  isFriend: boolean
+  messageCount: number
 }
 
 export interface GroupMessageRank {
@@ -43,8 +49,28 @@ export interface GroupMediaStats {
   total: number
 }
 
+interface GroupMemberContactInfo {
+  remark: string
+  nickName: string
+  alias: string
+  username: string
+  userName: string
+  encryptUsername: string
+  encryptUserName: string
+  localType: number
+}
+
 class GroupAnalyticsService {
   private configService: ConfigService
+  private readonly groupMembersPanelCacheTtlMs = 10 * 60 * 1000
+  private readonly groupMembersPanelMembersTimeoutMs = 12 * 1000
+  private readonly groupMembersPanelFullTimeoutMs = 25 * 1000
+  private readonly groupMembersPanelCache = new Map<string, { updatedAt: number; data: GroupMembersPanelEntry[] }>()
+  private readonly groupMembersPanelInFlight = new Map<
+    string,
+    Promise<{ success: boolean; data?: GroupMembersPanelEntry[]; error?: string; fromCache?: boolean; updatedAt?: number }>
+  >()
+  private readonly friendExcludeNames = new Set(['medianote', 'floatbottle', 'qmessage', 'qqmail', 'fmessage'])
 
   constructor() {
     this.configService = new ConfigService()
@@ -89,6 +115,128 @@ class GroupAnalyticsService {
     return cleaned
   }
 
+  private resolveMemberUsername(
+    candidate: unknown,
+    memberLookup: Map<string, string>
+  ): string | null {
+    if (typeof candidate !== 'string') return null
+    const raw = candidate.trim()
+    if (!raw) return null
+    if (memberLookup.has(raw)) return memberLookup.get(raw) || null
+    const cleaned = this.cleanAccountDirName(raw)
+    if (memberLookup.has(cleaned)) return memberLookup.get(cleaned) || null
+
+    const parts = raw.split(/[,\s;|]+/).filter(Boolean)
+    for (const part of parts) {
+      if (memberLookup.has(part)) return memberLookup.get(part) || null
+      const normalizedPart = this.cleanAccountDirName(part)
+      if (memberLookup.has(normalizedPart)) return memberLookup.get(normalizedPart) || null
+    }
+
+    if ((raw.startsWith('{') || raw.startsWith('[')) && raw.length < 4096) {
+      try {
+        const parsed = JSON.parse(raw)
+        return this.extractOwnerUsername(parsed, memberLookup, 0)
+      } catch {
+        return null
+      }
+    }
+
+    return null
+  }
+
+  private extractOwnerUsername(
+    value: unknown,
+    memberLookup: Map<string, string>,
+    depth: number
+  ): string | null {
+    if (depth > 4 || value == null) return null
+    if (Buffer.isBuffer(value) || value instanceof Uint8Array) return null
+
+    if (typeof value === 'string') {
+      return this.resolveMemberUsername(value, memberLookup)
+    }
+
+    if (Array.isArray(value)) {
+      for (const item of value) {
+        const owner = this.extractOwnerUsername(item, memberLookup, depth + 1)
+        if (owner) return owner
+      }
+      return null
+    }
+
+    if (typeof value !== 'object') return null
+    const row = value as Record<string, unknown>
+
+    for (const [key, entry] of Object.entries(row)) {
+      const keyLower = key.toLowerCase()
+      if (!keyLower.includes('owner') && !keyLower.includes('host') && !keyLower.includes('creator')) {
+        continue
+      }
+
+      if (typeof entry === 'boolean') {
+        if (entry && typeof row.username === 'string') {
+          const owner = this.resolveMemberUsername(row.username, memberLookup)
+          if (owner) return owner
+        }
+        continue
+      }
+
+      const owner = this.extractOwnerUsername(entry, memberLookup, depth + 1)
+      if (owner) return owner
+    }
+
+    return null
+  }
+
+  private async detectGroupOwnerUsername(
+    chatroomId: string,
+    members: Array<{ username: string; [key: string]: unknown }>
+  ): Promise<string | undefined> {
+    const memberLookup = new Map<string, string>()
+    for (const member of members) {
+      const username = String(member.username || '').trim()
+      if (!username) continue
+      const cleaned = this.cleanAccountDirName(username)
+      memberLookup.set(username, username)
+      memberLookup.set(cleaned, username)
+    }
+    if (memberLookup.size === 0) return undefined
+
+    const tryResolve = (candidate: unknown): string | undefined => {
+      const owner = this.extractOwnerUsername(candidate, memberLookup, 0)
+      return owner || undefined
+    }
+
+    for (const member of members) {
+      const owner = tryResolve(member)
+      if (owner) return owner
+    }
+
+    try {
+      const groupContact = await wcdbService.getContact(chatroomId)
+      if (groupContact.success && groupContact.contact) {
+        const owner = tryResolve(groupContact.contact)
+        if (owner) return owner
+      }
+    } catch {
+      // ignore
+    }
+
+    try {
+      const escapedChatroomId = chatroomId.replace(/'/g, "''")
+      const roomResult = await wcdbService.execQuery('contact', null, `SELECT * FROM chat_room WHERE username='${escapedChatroomId}' LIMIT 1`)
+      if (roomResult.success && roomResult.rows && roomResult.rows.length > 0) {
+        const owner = tryResolve(roomResult.rows[0])
+        if (owner) return owner
+      }
+    } catch {
+      // ignore
+    }
+
+    return undefined
+  }
+
   private async ensureConnected(): Promise<{ success: boolean; error?: string }> {
     const wxid = this.configService.get('myWxid')
     const dbPath = this.configService.get('dbPath')
@@ -296,6 +444,203 @@ class GroupAnalyticsService {
     return Array.from(set)
   }
 
+  private toNonNegativeInteger(value: unknown): number {
+    const parsed = Number(value)
+    if (!Number.isFinite(parsed)) return 0
+    return Math.max(0, Math.floor(parsed))
+  }
+
+  private pickStringField(row: Record<string, unknown>, keys: string[]): string {
+    for (const key of keys) {
+      const value = row[key]
+      if (value == null) continue
+      const text = String(value).trim()
+      if (text) return text
+    }
+    return ''
+  }
+
+  private pickIntegerField(row: Record<string, unknown>, keys: string[], fallback: number = 0): number {
+    for (const key of keys) {
+      const value = row[key]
+      if (value == null || value === '') continue
+      const parsed = Number(value)
+      if (Number.isFinite(parsed)) return Math.floor(parsed)
+    }
+    return fallback
+  }
+
+  private buildGroupMembersPanelCacheKey(chatroomId: string, includeMessageCounts: boolean): string {
+    const dbPath = String(this.configService.get('dbPath') || '').trim()
+    const wxid = this.cleanAccountDirName(String(this.configService.get('myWxid') || '').trim())
+    const mode = includeMessageCounts ? 'full' : 'members'
+    return `${dbPath}::${wxid}::${chatroomId}::${mode}`
+  }
+
+  private pruneGroupMembersPanelCache(maxEntries: number = 80): void {
+    if (this.groupMembersPanelCache.size <= maxEntries) return
+    const entries = Array.from(this.groupMembersPanelCache.entries())
+      .sort((a, b) => a[1].updatedAt - b[1].updatedAt)
+    const removeCount = this.groupMembersPanelCache.size - maxEntries
+    for (let i = 0; i < removeCount; i += 1) {
+      this.groupMembersPanelCache.delete(entries[i][0])
+    }
+  }
+
+  private async withPromiseTimeout<T>(
+    promise: Promise<T>,
+    timeoutMs: number,
+    timeoutResult: T
+  ): Promise<T> {
+    if (!Number.isFinite(timeoutMs) || timeoutMs <= 0) {
+      return promise
+    }
+
+    let timeoutTimer: ReturnType<typeof setTimeout> | null = null
+    const timeoutPromise = new Promise<T>((resolve) => {
+      timeoutTimer = setTimeout(() => {
+        resolve(timeoutResult)
+      }, timeoutMs)
+    })
+
+    try {
+      return await Promise.race([promise, timeoutPromise])
+    } finally {
+      if (timeoutTimer) {
+        clearTimeout(timeoutTimer)
+      }
+    }
+  }
+
+  private async buildGroupMemberContactLookup(usernames: string[]): Promise<Map<string, GroupMemberContactInfo>> {
+    const lookup = new Map<string, GroupMemberContactInfo>()
+    const candidates = this.buildIdCandidates(usernames)
+    if (candidates.length === 0) return lookup
+
+    const appendContactsToLookup = (rows: Record<string, unknown>[]) => {
+      for (const row of rows) {
+        const contact: GroupMemberContactInfo = {
+          remark: this.pickStringField(row, ['remark', 'WCDB_CT_remark']),
+          nickName: this.pickStringField(row, ['nick_name', 'nickName', 'WCDB_CT_nick_name']),
+          alias: this.pickStringField(row, ['alias', 'WCDB_CT_alias']),
+          username: this.pickStringField(row, ['username', 'WCDB_CT_username']),
+          userName: this.pickStringField(row, ['user_name', 'userName', 'WCDB_CT_user_name']),
+          encryptUsername: this.pickStringField(row, ['encrypt_username', 'encryptUsername', 'WCDB_CT_encrypt_username']),
+          encryptUserName: this.pickStringField(row, ['encrypt_user_name', 'encryptUserName', 'WCDB_CT_encrypt_user_name']),
+          localType: this.pickIntegerField(row, ['local_type', 'localType', 'WCDB_CT_local_type'], 0)
+        }
+        const lookupKeys = this.buildIdCandidates([
+          contact.username,
+          contact.userName,
+          contact.encryptUsername,
+          contact.encryptUserName,
+          contact.alias
+        ])
+        for (const key of lookupKeys) {
+          const normalized = key.toLowerCase()
+          if (!lookup.has(normalized)) {
+            lookup.set(normalized, contact)
+          }
+        }
+      }
+    }
+
+    const batchSize = 200
+    for (let i = 0; i < candidates.length; i += batchSize) {
+      const batch = candidates.slice(i, i + batchSize)
+      if (batch.length === 0) continue
+
+      const inList = batch.map((username) => `'${username.replace(/'/g, "''")}'`).join(',')
+      const lightweightSql = `
+        SELECT username, user_name, encrypt_username, encrypt_user_name, remark, nick_name, alias, local_type
+        FROM contact
+        WHERE username IN (${inList})
+      `
+      let result = await wcdbService.execQuery('contact', null, lightweightSql)
+      if (!result.success || !result.rows) {
+        // 兼容历史/变体列名，轻查询失败时回退全字段查询，避免好友标识丢失
+        result = await wcdbService.execQuery('contact', null, `SELECT * FROM contact WHERE username IN (${inList})`)
+      }
+      if (!result.success || !result.rows) continue
+      appendContactsToLookup(result.rows as Record<string, unknown>[])
+    }
+    return lookup
+  }
+
+  private resolveContactByCandidates(
+    lookup: Map<string, GroupMemberContactInfo>,
+    candidates: Array<string | undefined | null>
+  ): GroupMemberContactInfo | undefined {
+    const ids = this.buildIdCandidates(candidates)
+    for (const id of ids) {
+      const hit = lookup.get(id.toLowerCase())
+      if (hit) return hit
+    }
+    return undefined
+  }
+
+  private async buildGroupMessageCountLookup(chatroomId: string): Promise<Map<string, number>> {
+    const lookup = new Map<string, number>()
+    const result = await wcdbService.getGroupStats(chatroomId, 0, 0)
+    if (!result.success || !result.data) return lookup
+
+    const sessionData = result.data?.sessions?.[chatroomId]
+    if (!sessionData || !sessionData.senders) return lookup
+
+    const idMap = result.data.idMap || {}
+    for (const [senderId, rawCount] of Object.entries(sessionData.senders as Record<string, number>)) {
+      const username = String(idMap[senderId] || senderId || '').trim()
+      if (!username) continue
+      const count = this.toNonNegativeInteger(rawCount)
+      const keys = this.buildIdCandidates([username])
+      for (const key of keys) {
+        const normalized = key.toLowerCase()
+        const prev = lookup.get(normalized) || 0
+        if (count > prev) {
+          lookup.set(normalized, count)
+        }
+      }
+    }
+    return lookup
+  }
+
+  private resolveMessageCountByCandidates(
+    lookup: Map<string, number>,
+    candidates: Array<string | undefined | null>
+  ): number {
+    let maxCount = 0
+    const ids = this.buildIdCandidates(candidates)
+    for (const id of ids) {
+      const count = lookup.get(id.toLowerCase())
+      if (typeof count === 'number' && count > maxCount) {
+        maxCount = count
+      }
+    }
+    return maxCount
+  }
+
+  private isFriendMember(wxid: string, contact?: GroupMemberContactInfo): boolean {
+    const normalizedWxid = String(wxid || '').trim().toLowerCase()
+    if (!normalizedWxid) return false
+    if (normalizedWxid.includes('@chatroom') || normalizedWxid.startsWith('gh_')) return false
+    if (this.friendExcludeNames.has(normalizedWxid)) return false
+    if (!contact) return false
+    return contact.localType === 1
+  }
+
+  private sortGroupMembersPanelEntries(members: GroupMembersPanelEntry[]): GroupMembersPanelEntry[] {
+    return members.sort((a, b) => {
+      const ownerDiff = Number(Boolean(b.isOwner)) - Number(Boolean(a.isOwner))
+      if (ownerDiff !== 0) return ownerDiff
+
+      const friendDiff = Number(Boolean(b.isFriend)) - Number(Boolean(a.isFriend))
+      if (friendDiff !== 0) return friendDiff
+
+      if (a.messageCount !== b.messageCount) return b.messageCount - a.messageCount
+      return a.displayName.localeCompare(b.displayName, 'zh-Hans-CN')
+    })
+  }
+
   private resolveGroupNicknameByCandidates(groupNicknames: Map<string, string>, candidates: string[]): string {
     const idCandidates = this.buildIdCandidates(candidates)
     if (idCandidates.length === 0) return ''
@@ -483,6 +828,167 @@ class GroupAnalyticsService {
     }
   }
 
+  private async loadGroupMembersPanelDataFresh(
+    chatroomId: string,
+    includeMessageCounts: boolean
+  ): Promise<{ success: boolean; data?: GroupMembersPanelEntry[]; error?: string }> {
+    const membersResult = await wcdbService.getGroupMembers(chatroomId)
+    if (!membersResult.success || !membersResult.members) {
+      return { success: false, error: membersResult.error || '获取群成员失败' }
+    }
+
+    const members = membersResult.members as Array<{
+      username: string
+      avatarUrl?: string
+      originalName?: string
+      [key: string]: unknown
+    }>
+    if (members.length === 0) return { success: true, data: [] }
+
+    const usernames = members
+      .map((member) => String(member.username || '').trim())
+      .filter(Boolean)
+    if (usernames.length === 0) return { success: true, data: [] }
+
+    const displayNamesPromise = wcdbService.getDisplayNames(usernames)
+    const contactLookupPromise = this.buildGroupMemberContactLookup(usernames)
+    const ownerPromise = this.detectGroupOwnerUsername(chatroomId, members)
+    const messageCountLookupPromise = includeMessageCounts
+      ? this.buildGroupMessageCountLookup(chatroomId)
+      : Promise.resolve(new Map<string, number>())
+
+    const [displayNames, contactLookup, ownerUsername, messageCountLookup] = await Promise.all([
+      displayNamesPromise,
+      contactLookupPromise,
+      ownerPromise,
+      messageCountLookupPromise
+    ])
+
+    const nicknameCandidates = this.buildIdCandidates([
+      ...members.map((member) => member.username),
+      ...members.map((member) => member.originalName),
+      ...Array.from(contactLookup.values()).map((contact) => contact?.username),
+      ...Array.from(contactLookup.values()).map((contact) => contact?.userName),
+      ...Array.from(contactLookup.values()).map((contact) => contact?.encryptUsername),
+      ...Array.from(contactLookup.values()).map((contact) => contact?.encryptUserName),
+      ...Array.from(contactLookup.values()).map((contact) => contact?.alias)
+    ])
+    const groupNicknames = await this.getGroupNicknamesForRoom(chatroomId, nicknameCandidates)
+    const myWxid = this.cleanAccountDirName(this.configService.get('myWxid') || '')
+    let myGroupMessageCountHint: number | undefined
+
+    const data: GroupMembersPanelEntry[] = members
+      .map((member) => {
+        const wxid = String(member.username || '').trim()
+        if (!wxid) return null
+
+        const contact = this.resolveContactByCandidates(contactLookup, [wxid, member.originalName])
+        const nickname = contact?.nickName || ''
+        const remark = contact?.remark || ''
+        const alias = contact?.alias || ''
+        const normalizedWxid = this.cleanAccountDirName(wxid)
+        const lookupCandidates = this.buildIdCandidates([
+          wxid,
+          member.originalName as string | undefined,
+          contact?.username,
+          contact?.userName,
+          contact?.encryptUsername,
+          contact?.encryptUserName,
+          alias
+        ])
+        if (normalizedWxid === myWxid) {
+          lookupCandidates.push(myWxid)
+        }
+        const groupNickname = this.resolveGroupNicknameByCandidates(groupNicknames, lookupCandidates)
+        const displayName = displayNames.success && displayNames.map ? (displayNames.map[wxid] || wxid) : wxid
+
+        return {
+          username: wxid,
+          displayName,
+          nickname,
+          alias,
+          remark,
+          groupNickname,
+          avatarUrl: member.avatarUrl,
+          isOwner: Boolean(ownerUsername && ownerUsername === wxid),
+          isFriend: this.isFriendMember(wxid, contact),
+          messageCount: this.resolveMessageCountByCandidates(messageCountLookup, lookupCandidates)
+        }
+      })
+      .filter((member): member is GroupMembersPanelEntry => Boolean(member))
+
+    if (includeMessageCounts && myWxid) {
+      const selfEntry = data.find((member) => this.cleanAccountDirName(member.username) === myWxid)
+      if (selfEntry && Number.isFinite(selfEntry.messageCount)) {
+        myGroupMessageCountHint = Math.max(0, Math.floor(selfEntry.messageCount))
+      }
+    }
+
+    if (includeMessageCounts && Number.isFinite(myGroupMessageCountHint)) {
+      void chatService.setGroupMyMessageCountHint(chatroomId, myGroupMessageCountHint as number)
+    }
+
+    return { success: true, data: this.sortGroupMembersPanelEntries(data) }
+  }
+
+  async getGroupMembersPanelData(
+    chatroomId: string,
+    options?: { forceRefresh?: boolean; includeMessageCounts?: boolean }
+  ): Promise<{ success: boolean; data?: GroupMembersPanelEntry[]; error?: string; fromCache?: boolean; updatedAt?: number }> {
+    try {
+      const normalizedChatroomId = String(chatroomId || '').trim()
+      if (!normalizedChatroomId) return { success: false, error: '群聊ID不能为空' }
+
+      const forceRefresh = Boolean(options?.forceRefresh)
+      const includeMessageCounts = options?.includeMessageCounts !== false
+      const cacheKey = this.buildGroupMembersPanelCacheKey(normalizedChatroomId, includeMessageCounts)
+      const now = Date.now()
+      const cached = this.groupMembersPanelCache.get(cacheKey)
+      if (!forceRefresh && cached && now - cached.updatedAt < this.groupMembersPanelCacheTtlMs) {
+        return { success: true, data: cached.data, fromCache: true, updatedAt: cached.updatedAt }
+      }
+
+      if (!forceRefresh) {
+        const pending = this.groupMembersPanelInFlight.get(cacheKey)
+        if (pending) return pending
+      }
+
+      const requestPromise = (async () => {
+        const conn = await this.ensureConnected()
+        if (!conn.success) return { success: false, error: conn.error }
+
+        const timeoutMs = includeMessageCounts
+          ? this.groupMembersPanelFullTimeoutMs
+          : this.groupMembersPanelMembersTimeoutMs
+        const fresh = await this.withPromiseTimeout(
+          this.loadGroupMembersPanelDataFresh(normalizedChatroomId, includeMessageCounts),
+          timeoutMs,
+          {
+            success: false,
+            error: includeMessageCounts
+              ? '群成员发言统计加载超时，请稍后重试'
+              : '群成员列表加载超时，请稍后重试'
+          }
+        )
+        if (!fresh.success || !fresh.data) {
+          return { success: false, error: fresh.error || '获取群成员面板数据失败' }
+        }
+
+        const updatedAt = Date.now()
+        this.groupMembersPanelCache.set(cacheKey, { updatedAt, data: fresh.data })
+        this.pruneGroupMembersPanelCache()
+        return { success: true, data: fresh.data, fromCache: false, updatedAt }
+      })().finally(() => {
+        this.groupMembersPanelInFlight.delete(cacheKey)
+      })
+
+      this.groupMembersPanelInFlight.set(cacheKey, requestPromise)
+      return await requestPromise
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
   async getGroupMembers(chatroomId: string): Promise<{ success: boolean; data?: GroupMember[]; error?: string }> {
     try {
       const conn = await this.ensureConnected()
@@ -497,6 +1003,7 @@ class GroupAnalyticsService {
         username: string
         avatarUrl?: string
         originalName?: string
+        [key: string]: unknown
       }>
       const usernames = members.map((m) => m.username).filter(Boolean)
 
@@ -543,6 +1050,7 @@ class GroupAnalyticsService {
       const groupNicknames = await this.getGroupNicknamesForRoom(chatroomId, nicknameCandidates)
 
       const myWxid = this.cleanAccountDirName(this.configService.get('myWxid') || '')
+      const ownerUsername = await this.detectGroupOwnerUsername(chatroomId, members)
       const data: GroupMember[] = members.map((m) => {
         const wxid = m.username || ''
         const displayName = displayNames.success && displayNames.map ? (displayNames.map[wxid] || wxid) : wxid
@@ -572,7 +1080,8 @@ class GroupAnalyticsService {
           alias,
           remark,
           groupNickname,
-          avatarUrl: m.avatarUrl
+          avatarUrl: m.avatarUrl,
+          isOwner: Boolean(ownerUsername && ownerUsername === wxid)
         }
       })
 

electron/services/groupMyMessageCountCacheService.ts

@@ -0,0 +1,204 @@
+import { join, dirname } from 'path'
+import { existsSync, mkdirSync, readFileSync, writeFileSync, rmSync } from 'fs'
+import { ConfigService } from './config'
+
+const CACHE_VERSION = 1
+const MAX_GROUP_ENTRIES_PER_SCOPE = 3000
+const MAX_SCOPE_ENTRIES = 12
+
+export interface GroupMyMessageCountCacheEntry {
+  updatedAt: number
+  messageCount: number
+}
+
+interface GroupMyMessageCountScopeMap {
+  [chatroomId: string]: GroupMyMessageCountCacheEntry
+}
+
+interface GroupMyMessageCountCacheStore {
+  version: number
+  scopes: Record<string, GroupMyMessageCountScopeMap>
+}
+
+function toNonNegativeInt(value: unknown): number | undefined {
+  if (typeof value !== 'number' || !Number.isFinite(value)) return undefined
+  return Math.max(0, Math.floor(value))
+}
+
+function normalizeEntry(raw: unknown): GroupMyMessageCountCacheEntry | null {
+  if (!raw || typeof raw !== 'object') return null
+  const source = raw as Record<string, unknown>
+  const updatedAt = toNonNegativeInt(source.updatedAt)
+  const messageCount = toNonNegativeInt(source.messageCount)
+  if (updatedAt === undefined || messageCount === undefined) return null
+  return {
+    updatedAt,
+    messageCount
+  }
+}
+
+export class GroupMyMessageCountCacheService {
+  private readonly cacheFilePath: string
+  private store: GroupMyMessageCountCacheStore = {
+    version: CACHE_VERSION,
+    scopes: {}
+  }
+
+  constructor(cacheBasePath?: string) {
+    const basePath = cacheBasePath && cacheBasePath.trim().length > 0
+      ? cacheBasePath
+      : ConfigService.getInstance().getCacheBasePath()
+    this.cacheFilePath = join(basePath, 'group-my-message-counts.json')
+    this.ensureCacheDir()
+    this.load()
+  }
+
+  private ensureCacheDir(): void {
+    const dir = dirname(this.cacheFilePath)
+    if (!existsSync(dir)) {
+      mkdirSync(dir, { recursive: true })
+    }
+  }
+
+  private load(): void {
+    if (!existsSync(this.cacheFilePath)) return
+    try {
+      const raw = readFileSync(this.cacheFilePath, 'utf8')
+      const parsed = JSON.parse(raw) as unknown
+      if (!parsed || typeof parsed !== 'object') {
+        this.store = { version: CACHE_VERSION, scopes: {} }
+        return
+      }
+
+      const payload = parsed as Record<string, unknown>
+      const scopesRaw = payload.scopes
+      if (!scopesRaw || typeof scopesRaw !== 'object') {
+        this.store = { version: CACHE_VERSION, scopes: {} }
+        return
+      }
+
+      const scopes: Record<string, GroupMyMessageCountScopeMap> = {}
+      for (const [scopeKey, scopeValue] of Object.entries(scopesRaw as Record<string, unknown>)) {
+        if (!scopeValue || typeof scopeValue !== 'object') continue
+        const normalizedScope: GroupMyMessageCountScopeMap = {}
+        for (const [chatroomId, entryRaw] of Object.entries(scopeValue as Record<string, unknown>)) {
+          const entry = normalizeEntry(entryRaw)
+          if (!entry) continue
+          normalizedScope[chatroomId] = entry
+        }
+        if (Object.keys(normalizedScope).length > 0) {
+          scopes[scopeKey] = normalizedScope
+        }
+      }
+
+      this.store = {
+        version: CACHE_VERSION,
+        scopes
+      }
+    } catch (error) {
+      console.error('GroupMyMessageCountCacheService: 载入缓存失败', error)
+      this.store = { version: CACHE_VERSION, scopes: {} }
+    }
+  }
+
+  get(scopeKey: string, chatroomId: string): GroupMyMessageCountCacheEntry | undefined {
+    if (!scopeKey || !chatroomId) return undefined
+    const scope = this.store.scopes[scopeKey]
+    if (!scope) return undefined
+    const entry = normalizeEntry(scope[chatroomId])
+    if (!entry) {
+      delete scope[chatroomId]
+      if (Object.keys(scope).length === 0) {
+        delete this.store.scopes[scopeKey]
+      }
+      this.persist()
+      return undefined
+    }
+    return entry
+  }
+
+  set(scopeKey: string, chatroomId: string, entry: GroupMyMessageCountCacheEntry): void {
+    if (!scopeKey || !chatroomId) return
+    const normalized = normalizeEntry(entry)
+    if (!normalized) return
+
+    if (!this.store.scopes[scopeKey]) {
+      this.store.scopes[scopeKey] = {}
+    }
+
+    const existing = this.store.scopes[scopeKey][chatroomId]
+    if (existing && existing.updatedAt > normalized.updatedAt) {
+      return
+    }
+
+    this.store.scopes[scopeKey][chatroomId] = normalized
+    this.trimScope(scopeKey)
+    this.trimScopes()
+    this.persist()
+  }
+
+  delete(scopeKey: string, chatroomId: string): void {
+    if (!scopeKey || !chatroomId) return
+    const scope = this.store.scopes[scopeKey]
+    if (!scope) return
+    if (!(chatroomId in scope)) return
+    delete scope[chatroomId]
+    if (Object.keys(scope).length === 0) {
+      delete this.store.scopes[scopeKey]
+    }
+    this.persist()
+  }
+
+  clearScope(scopeKey: string): void {
+    if (!scopeKey) return
+    if (!this.store.scopes[scopeKey]) return
+    delete this.store.scopes[scopeKey]
+    this.persist()
+  }
+
+  clearAll(): void {
+    this.store = { version: CACHE_VERSION, scopes: {} }
+    try {
+      rmSync(this.cacheFilePath, { force: true })
+    } catch (error) {
+      console.error('GroupMyMessageCountCacheService: 清理缓存失败', error)
+    }
+  }
+
+  private trimScope(scopeKey: string): void {
+    const scope = this.store.scopes[scopeKey]
+    if (!scope) return
+    const entries = Object.entries(scope)
+    if (entries.length <= MAX_GROUP_ENTRIES_PER_SCOPE) return
+    entries.sort((a, b) => b[1].updatedAt - a[1].updatedAt)
+    const trimmed: GroupMyMessageCountScopeMap = {}
+    for (const [chatroomId, entry] of entries.slice(0, MAX_GROUP_ENTRIES_PER_SCOPE)) {
+      trimmed[chatroomId] = entry
+    }
+    this.store.scopes[scopeKey] = trimmed
+  }
+
+  private trimScopes(): void {
+    const scopeEntries = Object.entries(this.store.scopes)
+    if (scopeEntries.length <= MAX_SCOPE_ENTRIES) return
+    scopeEntries.sort((a, b) => {
+      const aUpdatedAt = Math.max(...Object.values(a[1]).map((entry) => entry.updatedAt), 0)
+      const bUpdatedAt = Math.max(...Object.values(b[1]).map((entry) => entry.updatedAt), 0)
+      return bUpdatedAt - aUpdatedAt
+    })
+
+    const trimmedScopes: Record<string, GroupMyMessageCountScopeMap> = {}
+    for (const [scopeKey, scopeMap] of scopeEntries.slice(0, MAX_SCOPE_ENTRIES)) {
+      trimmedScopes[scopeKey] = scopeMap
+    }
+    this.store.scopes = trimmedScopes
+  }
+
+  private persist(): void {
+    try {
+      writeFileSync(this.cacheFilePath, JSON.stringify(this.store), 'utf8')
+    } catch (error) {
+      console.error('GroupMyMessageCountCacheService: 保存缓存失败', error)
+    }
+  }
+}

electron/services/keyService.ts

@@ -509,6 +509,58 @@ export class KeyService {
     return false
   }
 
+  private isLoginRelatedText(value: string): boolean {
+    const normalized = String(value || '').replace(/\s+/g, '').toLowerCase()
+    if (!normalized) return false
+    const keywords = [
+      '登录',
+      '扫码',
+      '二维码',
+      '请在手机上确认',
+      '手机确认',
+      '切换账号',
+      'wechatlogin',
+      'qrcode',
+      'scan'
+    ]
+    return keywords.some((keyword) => normalized.includes(keyword))
+  }
+
+  private async detectWeChatLoginRequired(pid: number): Promise<boolean> {
+    if (!this.ensureUser32()) return false
+    let loginRequired = false
+
+    const enumWindowsCallback = this.koffi.register((hWnd: any, _lParam: any) => {
+      if (!this.IsWindowVisible(hWnd)) return true
+      const title = this.getWindowTitle(hWnd)
+      if (!this.isWeChatWindowTitle(title)) return true
+
+      const pidBuf = Buffer.alloc(4)
+      this.GetWindowThreadProcessId(hWnd, pidBuf)
+      const windowPid = pidBuf.readUInt32LE(0)
+      if (windowPid !== pid) return true
+
+      if (this.isLoginRelatedText(title)) {
+        loginRequired = true
+        return false
+      }
+
+      const children = this.collectChildWindowInfos(hWnd)
+      for (const child of children) {
+        if (this.isLoginRelatedText(child.title) || this.isLoginRelatedText(child.className)) {
+          loginRequired = true
+          return false
+        }
+      }
+      return true
+    }, this.WNDENUMPROC_PTR)
+
+    this.EnumWindows(enumWindowsCallback, 0)
+    this.koffi.unregister(enumWindowsCallback)
+
+    return loginRequired
+  }
+
   private async waitForWeChatWindowComponents(pid: number, timeoutMs = 15000): Promise<boolean> {
     if (!this.ensureUser32()) return true
     const startTime = Date.now()
@@ -605,6 +657,7 @@ export class KeyService {
 
     const keyBuffer = Buffer.alloc(128)
     const start = Date.now()
+    let loginRequiredDetected = false
 
     try {
       while (Date.now() - start < timeoutMs) {
@@ -624,6 +677,9 @@ export class KeyService {
           const level = levelOut[0] ?? 0
           if (msg) {
             logs.push(msg)
+            if (this.isLoginRelatedText(msg)) {
+              loginRequiredDetected = true
+            }
             onStatus?.(msg, level)
           }
         }
@@ -635,6 +691,15 @@ export class KeyService {
       } catch { }
     }
 
+    const loginRequired = loginRequiredDetected || await this.detectWeChatLoginRequired(pid)
+    if (loginRequired) {
+      return {
+        success: false,
+        error: '微信已启动但尚未完成登录，请先在微信客户端完成登录后再重试自动获取密钥。',
+        logs
+      }
+    }
+
     return { success: false, error: '获取密钥超时', logs }
   }
 
@@ -983,4 +1048,4 @@ export class KeyService {
       return false
     } catch { return false }
   }
-}
+}

electron/services/sessionStatsCacheService.ts

@@ -0,0 +1,293 @@
+import { join, dirname } from 'path'
+import { existsSync, mkdirSync, readFileSync, writeFileSync, rmSync } from 'fs'
+import { ConfigService } from './config'
+
+const CACHE_VERSION = 2
+const MAX_SESSION_ENTRIES_PER_SCOPE = 2000
+const MAX_SCOPE_ENTRIES = 12
+
+export interface SessionStatsCacheStats {
+  totalMessages: number
+  voiceMessages: number
+  imageMessages: number
+  videoMessages: number
+  emojiMessages: number
+  transferMessages: number
+  redPacketMessages: number
+  callMessages: number
+  firstTimestamp?: number
+  lastTimestamp?: number
+  privateMutualGroups?: number
+  groupMemberCount?: number
+  groupMyMessages?: number
+  groupActiveSpeakers?: number
+  groupMutualFriends?: number
+}
+
+export interface SessionStatsCacheEntry {
+  updatedAt: number
+  includeRelations: boolean
+  stats: SessionStatsCacheStats
+}
+
+interface SessionStatsScopeMap {
+  [sessionId: string]: SessionStatsCacheEntry
+}
+
+interface SessionStatsCacheStore {
+  version: number
+  scopes: Record<string, SessionStatsScopeMap>
+}
+
+function toNonNegativeInt(value: unknown): number | undefined {
+  if (typeof value !== 'number' || !Number.isFinite(value)) return undefined
+  return Math.max(0, Math.floor(value))
+}
+
+function normalizeStats(raw: unknown): SessionStatsCacheStats | null {
+  if (!raw || typeof raw !== 'object') return null
+  const source = raw as Record<string, unknown>
+
+  const totalMessages = toNonNegativeInt(source.totalMessages)
+  const voiceMessages = toNonNegativeInt(source.voiceMessages)
+  const imageMessages = toNonNegativeInt(source.imageMessages)
+  const videoMessages = toNonNegativeInt(source.videoMessages)
+  const emojiMessages = toNonNegativeInt(source.emojiMessages)
+  const transferMessages = toNonNegativeInt(source.transferMessages)
+  const redPacketMessages = toNonNegativeInt(source.redPacketMessages)
+  const callMessages = toNonNegativeInt(source.callMessages)
+
+  if (
+    totalMessages === undefined ||
+    voiceMessages === undefined ||
+    imageMessages === undefined ||
+    videoMessages === undefined ||
+    emojiMessages === undefined ||
+    transferMessages === undefined ||
+    redPacketMessages === undefined ||
+    callMessages === undefined
+  ) {
+    return null
+  }
+
+  const normalized: SessionStatsCacheStats = {
+    totalMessages,
+    voiceMessages,
+    imageMessages,
+    videoMessages,
+    emojiMessages,
+    transferMessages,
+    redPacketMessages,
+    callMessages
+  }
+
+  const firstTimestamp = toNonNegativeInt(source.firstTimestamp)
+  if (firstTimestamp !== undefined) normalized.firstTimestamp = firstTimestamp
+
+  const lastTimestamp = toNonNegativeInt(source.lastTimestamp)
+  if (lastTimestamp !== undefined) normalized.lastTimestamp = lastTimestamp
+
+  const privateMutualGroups = toNonNegativeInt(source.privateMutualGroups)
+  if (privateMutualGroups !== undefined) normalized.privateMutualGroups = privateMutualGroups
+
+  const groupMemberCount = toNonNegativeInt(source.groupMemberCount)
+  if (groupMemberCount !== undefined) normalized.groupMemberCount = groupMemberCount
+
+  const groupMyMessages = toNonNegativeInt(source.groupMyMessages)
+  if (groupMyMessages !== undefined) normalized.groupMyMessages = groupMyMessages
+
+  const groupActiveSpeakers = toNonNegativeInt(source.groupActiveSpeakers)
+  if (groupActiveSpeakers !== undefined) normalized.groupActiveSpeakers = groupActiveSpeakers
+
+  const groupMutualFriends = toNonNegativeInt(source.groupMutualFriends)
+  if (groupMutualFriends !== undefined) normalized.groupMutualFriends = groupMutualFriends
+
+  return normalized
+}
+
+function normalizeEntry(raw: unknown): SessionStatsCacheEntry | null {
+  if (!raw || typeof raw !== 'object') return null
+  const source = raw as Record<string, unknown>
+  const updatedAt = toNonNegativeInt(source.updatedAt)
+  const includeRelations = typeof source.includeRelations === 'boolean' ? source.includeRelations : false
+  const stats = normalizeStats(source.stats)
+
+  if (updatedAt === undefined || !stats) {
+    return null
+  }
+
+  return {
+    updatedAt,
+    includeRelations,
+    stats
+  }
+}
+
+export class SessionStatsCacheService {
+  private readonly cacheFilePath: string
+  private store: SessionStatsCacheStore = {
+    version: CACHE_VERSION,
+    scopes: {}
+  }
+
+  constructor(cacheBasePath?: string) {
+    const basePath = cacheBasePath && cacheBasePath.trim().length > 0
+      ? cacheBasePath
+      : ConfigService.getInstance().getCacheBasePath()
+    this.cacheFilePath = join(basePath, 'session-stats.json')
+    this.ensureCacheDir()
+    this.load()
+  }
+
+  private ensureCacheDir(): void {
+    const dir = dirname(this.cacheFilePath)
+    if (!existsSync(dir)) {
+      mkdirSync(dir, { recursive: true })
+    }
+  }
+
+  private load(): void {
+    if (!existsSync(this.cacheFilePath)) return
+    try {
+      const raw = readFileSync(this.cacheFilePath, 'utf8')
+      const parsed = JSON.parse(raw) as unknown
+      if (!parsed || typeof parsed !== 'object') {
+        this.store = { version: CACHE_VERSION, scopes: {} }
+        return
+      }
+
+      const payload = parsed as Record<string, unknown>
+      const version = Number(payload.version)
+      if (!Number.isFinite(version) || version !== CACHE_VERSION) {
+        this.store = { version: CACHE_VERSION, scopes: {} }
+        return
+      }
+      const scopesRaw = payload.scopes
+      if (!scopesRaw || typeof scopesRaw !== 'object') {
+        this.store = { version: CACHE_VERSION, scopes: {} }
+        return
+      }
+
+      const scopes: Record<string, SessionStatsScopeMap> = {}
+      for (const [scopeKey, scopeValue] of Object.entries(scopesRaw as Record<string, unknown>)) {
+        if (!scopeValue || typeof scopeValue !== 'object') continue
+        const normalizedScope: SessionStatsScopeMap = {}
+        for (const [sessionId, entryRaw] of Object.entries(scopeValue as Record<string, unknown>)) {
+          const entry = normalizeEntry(entryRaw)
+          if (!entry) continue
+          normalizedScope[sessionId] = entry
+        }
+        if (Object.keys(normalizedScope).length > 0) {
+          scopes[scopeKey] = normalizedScope
+        }
+      }
+
+      this.store = {
+        version: CACHE_VERSION,
+        scopes
+      }
+    } catch (error) {
+      console.error('SessionStatsCacheService: 载入缓存失败', error)
+      this.store = { version: CACHE_VERSION, scopes: {} }
+    }
+  }
+
+  get(scopeKey: string, sessionId: string): SessionStatsCacheEntry | undefined {
+    if (!scopeKey || !sessionId) return undefined
+    const scope = this.store.scopes[scopeKey]
+    if (!scope) return undefined
+    const entry = normalizeEntry(scope[sessionId])
+    if (!entry) {
+      delete scope[sessionId]
+      if (Object.keys(scope).length === 0) {
+        delete this.store.scopes[scopeKey]
+      }
+      this.persist()
+      return undefined
+    }
+    return entry
+  }
+
+  set(scopeKey: string, sessionId: string, entry: SessionStatsCacheEntry): void {
+    if (!scopeKey || !sessionId) return
+    const normalized = normalizeEntry(entry)
+    if (!normalized) return
+
+    if (!this.store.scopes[scopeKey]) {
+      this.store.scopes[scopeKey] = {}
+    }
+    this.store.scopes[scopeKey][sessionId] = normalized
+
+    this.trimScope(scopeKey)
+    this.trimScopes()
+    this.persist()
+  }
+
+  delete(scopeKey: string, sessionId: string): void {
+    if (!scopeKey || !sessionId) return
+    const scope = this.store.scopes[scopeKey]
+    if (!scope) return
+    if (!(sessionId in scope)) return
+
+    delete scope[sessionId]
+    if (Object.keys(scope).length === 0) {
+      delete this.store.scopes[scopeKey]
+    }
+    this.persist()
+  }
+
+  clearScope(scopeKey: string): void {
+    if (!scopeKey) return
+    if (!this.store.scopes[scopeKey]) return
+    delete this.store.scopes[scopeKey]
+    this.persist()
+  }
+
+  clearAll(): void {
+    this.store = { version: CACHE_VERSION, scopes: {} }
+    try {
+      rmSync(this.cacheFilePath, { force: true })
+    } catch (error) {
+      console.error('SessionStatsCacheService: 清理缓存失败', error)
+    }
+  }
+
+  private trimScope(scopeKey: string): void {
+    const scope = this.store.scopes[scopeKey]
+    if (!scope) return
+    const entries = Object.entries(scope)
+    if (entries.length <= MAX_SESSION_ENTRIES_PER_SCOPE) return
+
+    entries.sort((a, b) => b[1].updatedAt - a[1].updatedAt)
+    const trimmed: SessionStatsScopeMap = {}
+    for (const [sessionId, entry] of entries.slice(0, MAX_SESSION_ENTRIES_PER_SCOPE)) {
+      trimmed[sessionId] = entry
+    }
+    this.store.scopes[scopeKey] = trimmed
+  }
+
+  private trimScopes(): void {
+    const scopeEntries = Object.entries(this.store.scopes)
+    if (scopeEntries.length <= MAX_SCOPE_ENTRIES) return
+
+    scopeEntries.sort((a, b) => {
+      const aUpdatedAt = Math.max(...Object.values(a[1]).map((entry) => entry.updatedAt), 0)
+      const bUpdatedAt = Math.max(...Object.values(b[1]).map((entry) => entry.updatedAt), 0)
+      return bUpdatedAt - aUpdatedAt
+    })
+
+    const trimmedScopes: Record<string, SessionStatsScopeMap> = {}
+    for (const [scopeKey, scopeMap] of scopeEntries.slice(0, MAX_SCOPE_ENTRIES)) {
+      trimmedScopes[scopeKey] = scopeMap
+    }
+    this.store.scopes = trimmedScopes
+  }
+
+  private persist(): void {
+    try {
+      writeFileSync(this.cacheFilePath, JSON.stringify(this.store), 'utf8')
+    } catch (error) {
+      console.error('SessionStatsCacheService: 保存缓存失败', error)
+    }
+  }
+}

electron/services/snsService.ts

@@ -44,6 +44,68 @@ export interface SnsPost {
     linkUrl?: string
 }
 
+interface SnsContactIdentity {
+    username: string
+    wxid: string
+    alias?: string
+    wechatId?: string
+    remark?: string
+    nickName?: string
+    displayName: string
+}
+
+interface ParsedLikeUser {
+    username?: string
+    nickname?: string
+}
+
+interface ParsedCommentItem {
+    id: string
+    nickname: string
+    username?: string
+    content: string
+    refCommentId: string
+    refUsername?: string
+    refNickname?: string
+    emojis?: { url: string; md5: string; width: number; height: number; encryptUrl?: string; aesKey?: string }[]
+}
+
+interface ArkmeLikeDetail {
+    nickname: string
+    username?: string
+    wxid?: string
+    alias?: string
+    wechatId?: string
+    remark?: string
+    nickName?: string
+    displayName: string
+    source: 'xml' | 'legacy'
+}
+
+interface ArkmeCommentDetail {
+    id: string
+    nickname: string
+    username?: string
+    wxid?: string
+    alias?: string
+    wechatId?: string
+    remark?: string
+    nickName?: string
+    displayName: string
+    content: string
+    refCommentId: string
+    refNickname?: string
+    refUsername?: string
+    refWxid?: string
+    refAlias?: string
+    refWechatId?: string
+    refRemark?: string
+    refNickName?: string
+    refDisplayName?: string
+    emojis?: { url: string; md5: string; width: number; height: number; encryptUrl?: string; aesKey?: string }[]
+    source: 'xml' | 'legacy'
+}
+
 
 
 const fixSnsUrl = (url: string, token?: string, isVideo: boolean = false) => {
@@ -127,7 +189,7 @@ const extractVideoKey = (xml: string): string | undefined => {
 /**
  * 从 XML 中解析评论信息（含表情包、回复关系）
  */
-function parseCommentsFromXml(xml: string): { id: string; nickname: string; content: string; refCommentId: string; refNickname?: string; emojis?: { url: string; md5: string; width: number; height: number; encryptUrl?: string; aesKey?: string }[] }[] {
+function parseCommentsFromXml(xml: string): ParsedCommentItem[] {
     if (!xml) return []
 
     type CommentItem = {
@@ -229,12 +291,262 @@ class SnsService {
     private configService: ConfigService
     private contactCache: ContactCacheService
     private imageCache = new Map<string, string>()
+    private exportStatsCache: { totalPosts: number; totalFriends: number; myPosts: number | null; updatedAt: number } | null = null
+    private readonly exportStatsCacheTtlMs = 5 * 60 * 1000
+    private lastTimelineFallbackAt = 0
+    private readonly timelineFallbackCooldownMs = 3 * 60 * 1000
 
     constructor() {
         this.configService = new ConfigService()
         this.contactCache = new ContactCacheService(this.configService.get('cachePath') as string)
     }
 
+    private toOptionalString(value: unknown): string | undefined {
+        if (typeof value !== 'string') return undefined
+        const trimmed = value.trim()
+        return trimmed.length > 0 ? trimmed : undefined
+    }
+
+    private async resolveContactIdentity(
+        username: string,
+        identityCache: Map<string, Promise<SnsContactIdentity | null>>
+    ): Promise<SnsContactIdentity | null> {
+        const normalized = String(username || '').trim()
+        if (!normalized) return null
+
+        let pending = identityCache.get(normalized)
+        if (!pending) {
+            pending = (async () => {
+                const cached = this.contactCache.get(normalized)
+                let alias: string | undefined
+                let remark: string | undefined
+                let nickName: string | undefined
+
+                try {
+                    const contactResult = await wcdbService.getContact(normalized)
+                    if (contactResult.success && contactResult.contact) {
+                        const contact = contactResult.contact
+                        alias = this.toOptionalString(contact.alias ?? contact.Alias)
+                        remark = this.toOptionalString(contact.remark ?? contact.Remark)
+                        nickName = this.toOptionalString(contact.nickName ?? contact.nick_name ?? contact.nickname ?? contact.NickName)
+                    }
+                } catch {
+                    // 联系人补全失败不影响导出
+                }
+
+                const displayName = remark || nickName || alias || cached?.displayName || normalized
+                return {
+                    username: normalized,
+                    wxid: normalized,
+                    alias,
+                    wechatId: alias,
+                    remark,
+                    nickName,
+                    displayName
+                }
+            })()
+            identityCache.set(normalized, pending)
+        }
+
+        return pending
+    }
+
+    private parseLikeUsersFromXml(xml: string): ParsedLikeUser[] {
+        if (!xml) return []
+        const likes: ParsedLikeUser[] = []
+        try {
+            let likeListMatch = xml.match(/<LikeUserList>([\s\S]*?)<\/LikeUserList>/i)
+            if (!likeListMatch) likeListMatch = xml.match(/<likeUserList>([\s\S]*?)<\/likeUserList>/i)
+            if (!likeListMatch) likeListMatch = xml.match(/<likeList>([\s\S]*?)<\/likeList>/i)
+            if (!likeListMatch) likeListMatch = xml.match(/<like_user_list>([\s\S]*?)<\/like_user_list>/i)
+            if (!likeListMatch) return likes
+
+            const likeUserRegex = /<(?:LikeUser|likeUser|user_comment)>([\s\S]*?)<\/(?:LikeUser|likeUser|user_comment)>/gi
+            let m: RegExpExecArray | null
+            while ((m = likeUserRegex.exec(likeListMatch[1])) !== null) {
+                const block = m[1]
+                const username = this.toOptionalString(block.match(/<username>([^<]*)<\/username>/i)?.[1])
+                const nickname = this.toOptionalString(
+                    block.match(/<nickname>([^<]*)<\/nickname>/i)?.[1]
+                    || block.match(/<nickName>([^<]*)<\/nickName>/i)?.[1]
+                )
+                if (username || nickname) {
+                    likes.push({ username, nickname })
+                }
+            }
+        } catch (e) {
+            console.error('[SnsService] 解析点赞用户失败:', e)
+        }
+        return likes
+    }
+
+    private async buildArkmeInteractionDetails(
+        post: SnsPost,
+        identityCache: Map<string, Promise<SnsContactIdentity | null>>
+    ): Promise<{ likesDetail: ArkmeLikeDetail[]; commentsDetail: ArkmeCommentDetail[] }> {
+        const xmlLikes = this.parseLikeUsersFromXml(post.rawXml || '')
+        const likeCandidates: ParsedLikeUser[] = xmlLikes.length > 0
+            ? xmlLikes
+            : (post.likes || []).map((nickname) => ({ nickname }))
+        const likeSource: 'xml' | 'legacy' = xmlLikes.length > 0 ? 'xml' : 'legacy'
+        const likesDetail: ArkmeLikeDetail[] = []
+        const likeSeen = new Set<string>()
+
+        for (const like of likeCandidates) {
+            const identity = like.username
+                ? await this.resolveContactIdentity(like.username, identityCache)
+                : null
+            const nickname = like.nickname || identity?.displayName || like.username || ''
+            const username = identity?.username || like.username
+            const key = `${username || ''}|${nickname}`
+            if (likeSeen.has(key)) continue
+            likeSeen.add(key)
+            likesDetail.push({
+                nickname,
+                username,
+                wxid: username,
+                alias: identity?.alias,
+                wechatId: identity?.wechatId,
+                remark: identity?.remark,
+                nickName: identity?.nickName,
+                displayName: identity?.displayName || nickname || username || '',
+                source: likeSource
+            })
+        }
+
+        const xmlComments = parseCommentsFromXml(post.rawXml || '')
+        const commentMap = new Map<string, SnsPost['comments'][number]>()
+        for (const comment of post.comments || []) {
+            if (comment.id) commentMap.set(comment.id, comment)
+        }
+
+        const commentsBase: ParsedCommentItem[] = xmlComments.length > 0
+            ? xmlComments.map((comment) => {
+                const fallback = comment.id ? commentMap.get(comment.id) : undefined
+                return {
+                    id: comment.id || fallback?.id || '',
+                    nickname: comment.nickname || fallback?.nickname || '',
+                    username: comment.username,
+                    content: comment.content || fallback?.content || '',
+                    refCommentId: comment.refCommentId || fallback?.refCommentId || '',
+                    refUsername: comment.refUsername,
+                    refNickname: comment.refNickname || fallback?.refNickname,
+                    emojis: comment.emojis && comment.emojis.length > 0 ? comment.emojis : fallback?.emojis
+                }
+            })
+            : (post.comments || []).map((comment) => ({
+                id: comment.id || '',
+                nickname: comment.nickname || '',
+                content: comment.content || '',
+                refCommentId: comment.refCommentId || '',
+                refNickname: comment.refNickname,
+                emojis: comment.emojis
+            }))
+
+        if (xmlComments.length > 0) {
+            const mappedIds = new Set(commentsBase.map((comment) => comment.id).filter(Boolean))
+            for (const comment of post.comments || []) {
+                if (comment.id && mappedIds.has(comment.id)) continue
+                commentsBase.push({
+                    id: comment.id || '',
+                    nickname: comment.nickname || '',
+                    content: comment.content || '',
+                    refCommentId: comment.refCommentId || '',
+                    refNickname: comment.refNickname,
+                    emojis: comment.emojis
+                })
+            }
+        }
+
+        const commentSource: 'xml' | 'legacy' = xmlComments.length > 0 ? 'xml' : 'legacy'
+        const commentsDetail: ArkmeCommentDetail[] = []
+
+        for (const comment of commentsBase) {
+            const actor = comment.username
+                ? await this.resolveContactIdentity(comment.username, identityCache)
+                : null
+            const refActor = comment.refUsername
+                ? await this.resolveContactIdentity(comment.refUsername, identityCache)
+                : null
+            const nickname = comment.nickname || actor?.displayName || comment.username || ''
+            const username = actor?.username || comment.username
+            const refUsername = refActor?.username || comment.refUsername
+            commentsDetail.push({
+                id: comment.id || '',
+                nickname,
+                username,
+                wxid: username,
+                alias: actor?.alias,
+                wechatId: actor?.wechatId,
+                remark: actor?.remark,
+                nickName: actor?.nickName,
+                displayName: actor?.displayName || nickname || username || '',
+                content: comment.content || '',
+                refCommentId: comment.refCommentId || '',
+                refNickname: comment.refNickname || refActor?.displayName,
+                refUsername,
+                refWxid: refUsername,
+                refAlias: refActor?.alias,
+                refWechatId: refActor?.wechatId,
+                refRemark: refActor?.remark,
+                refNickName: refActor?.nickName,
+                refDisplayName: refActor?.displayName,
+                emojis: comment.emojis,
+                source: commentSource
+            })
+        }
+
+        return { likesDetail, commentsDetail }
+    }
+
+    private parseCountValue(row: any): number {
+        if (!row || typeof row !== 'object') return 0
+        const raw = row.total ?? row.count ?? row.cnt ?? Object.values(row)[0]
+        const num = Number(raw)
+        return Number.isFinite(num) && num > 0 ? Math.floor(num) : 0
+    }
+
+    private pickTimelineUsername(post: any): string {
+        const raw = post?.username ?? post?.user_name ?? post?.userName ?? ''
+        if (typeof raw !== 'string') return ''
+        return raw.trim()
+    }
+
+    private async getExportStatsFromTimeline(myWxid?: string): Promise<{ totalPosts: number; totalFriends: number; myPosts: number | null }> {
+        const pageSize = 500
+        const uniqueUsers = new Set<string>()
+        let totalPosts = 0
+        let myPosts = 0
+        let offset = 0
+        const normalizedMyWxid = this.toOptionalString(myWxid)
+
+        for (let round = 0; round < 2000; round++) {
+            const result = await wcdbService.getSnsTimeline(pageSize, offset, undefined, undefined, 0, 0)
+            if (!result.success || !Array.isArray(result.timeline)) {
+                throw new Error(result.error || '获取朋友圈统计失败')
+            }
+
+            const rows = result.timeline
+            if (rows.length === 0) break
+
+            totalPosts += rows.length
+            for (const row of rows) {
+                const username = this.pickTimelineUsername(row)
+                if (username) uniqueUsers.add(username)
+                if (normalizedMyWxid && username === normalizedMyWxid) myPosts += 1
+            }
+
+            if (rows.length < pageSize) break
+            offset += rows.length
+        }
+
+        return {
+            totalPosts,
+            totalFriends: uniqueUsers.size,
+            myPosts: normalizedMyWxid ? myPosts : null
+        }
+    }
+
     private parseLikesFromXml(xml: string): string[] {
         if (!xml) return []
         const likes: string[] = []
@@ -349,14 +661,207 @@ class SnsService {
     }
 
     async getSnsUsernames(): Promise<{ success: boolean; usernames?: string[]; error?: string }> {
-        const result = await wcdbService.execQuery('sns', null, 'SELECT DISTINCT user_name FROM SnsTimeLine')
-        if (!result.success || !result.rows) {
-            // 尝试 userName 列名
-            const result2 = await wcdbService.execQuery('sns', null, 'SELECT DISTINCT userName FROM SnsTimeLine')
-            if (!result2.success || !result2.rows) return { success: false, error: result.error || result2.error }
-            return { success: true, usernames: result2.rows.map((r: any) => r.userName).filter(Boolean) }
+        const collect = (rows?: any[]): string[] => {
+            if (!Array.isArray(rows)) return []
+            const usernames: string[] = []
+            for (const row of rows) {
+                const raw = row?.user_name ?? row?.userName ?? row?.username ?? Object.values(row || {})[0]
+                const username = typeof raw === 'string' ? raw.trim() : String(raw || '').trim()
+                if (username) usernames.push(username)
+            }
+            return usernames
         }
-        return { success: true, usernames: result.rows.map((r: any) => r.user_name).filter(Boolean) }
+
+        const primary = await wcdbService.execQuery(
+            'sns',
+            null,
+            "SELECT DISTINCT user_name FROM SnsTimeLine WHERE user_name IS NOT NULL AND user_name <> ''"
+        )
+        const fallback = await wcdbService.execQuery(
+            'sns',
+            null,
+            "SELECT DISTINCT userName FROM SnsTimeLine WHERE userName IS NOT NULL AND userName <> ''"
+        )
+
+        const merged = Array.from(new Set([
+            ...collect(primary.rows),
+            ...collect(fallback.rows)
+        ]))
+
+        // 任一查询成功且拿到用户名即视为成功，避免因为列名差异导致误判为空。
+        if (merged.length > 0) {
+            return { success: true, usernames: merged }
+        }
+
+        // 两条查询都成功但无数据，说明确实没有朋友圈发布者。
+        if (primary.success || fallback.success) {
+            return { success: true, usernames: [] }
+        }
+
+        return { success: false, error: primary.error || fallback.error || '获取朋友圈联系人失败' }
+    }
+
+    private async getExportStatsFromTableCount(myWxid?: string): Promise<{ totalPosts: number; totalFriends: number; myPosts: number | null }> {
+        let totalPosts = 0
+        let totalFriends = 0
+        let myPosts: number | null = null
+
+        const postCountResult = await wcdbService.execQuery('sns', null, 'SELECT COUNT(1) AS total FROM SnsTimeLine')
+        if (postCountResult.success && postCountResult.rows && postCountResult.rows.length > 0) {
+            totalPosts = this.parseCountValue(postCountResult.rows[0])
+        }
+
+        if (totalPosts > 0) {
+            const friendCountPrimary = await wcdbService.execQuery(
+                'sns',
+                null,
+                "SELECT COUNT(DISTINCT user_name) AS total FROM SnsTimeLine WHERE user_name IS NOT NULL AND user_name <> ''"
+            )
+            if (friendCountPrimary.success && friendCountPrimary.rows && friendCountPrimary.rows.length > 0) {
+                totalFriends = this.parseCountValue(friendCountPrimary.rows[0])
+            } else {
+                const friendCountFallback = await wcdbService.execQuery(
+                    'sns',
+                    null,
+                    "SELECT COUNT(DISTINCT userName) AS total FROM SnsTimeLine WHERE userName IS NOT NULL AND userName <> ''"
+                )
+                if (friendCountFallback.success && friendCountFallback.rows && friendCountFallback.rows.length > 0) {
+                    totalFriends = this.parseCountValue(friendCountFallback.rows[0])
+                }
+            }
+        }
+
+        const normalizedMyWxid = this.toOptionalString(myWxid)
+        if (normalizedMyWxid) {
+            const myPostPrimary = await wcdbService.execQuery(
+                'sns',
+                null,
+                "SELECT COUNT(1) AS total FROM SnsTimeLine WHERE user_name = ?",
+                [normalizedMyWxid]
+            )
+            if (myPostPrimary.success && myPostPrimary.rows && myPostPrimary.rows.length > 0) {
+                myPosts = this.parseCountValue(myPostPrimary.rows[0])
+            } else {
+                const myPostFallback = await wcdbService.execQuery(
+                    'sns',
+                    null,
+                    "SELECT COUNT(1) AS total FROM SnsTimeLine WHERE userName = ?",
+                    [normalizedMyWxid]
+                )
+                if (myPostFallback.success && myPostFallback.rows && myPostFallback.rows.length > 0) {
+                    myPosts = this.parseCountValue(myPostFallback.rows[0])
+                }
+            }
+        }
+
+        return { totalPosts, totalFriends, myPosts }
+    }
+
+    async getExportStats(options?: {
+        allowTimelineFallback?: boolean
+        preferCache?: boolean
+    }): Promise<{ success: boolean; data?: { totalPosts: number; totalFriends: number; myPosts: number | null }; error?: string }> {
+        const allowTimelineFallback = options?.allowTimelineFallback ?? true
+        const preferCache = options?.preferCache ?? false
+        const now = Date.now()
+        const myWxid = this.toOptionalString(this.configService.get('myWxid'))
+
+        try {
+            if (preferCache && this.exportStatsCache && now - this.exportStatsCache.updatedAt <= this.exportStatsCacheTtlMs) {
+                return {
+                    success: true,
+                    data: {
+                        totalPosts: this.exportStatsCache.totalPosts,
+                        totalFriends: this.exportStatsCache.totalFriends,
+                        myPosts: this.exportStatsCache.myPosts
+                    }
+                }
+            }
+
+            let { totalPosts, totalFriends, myPosts } = await this.getExportStatsFromTableCount(myWxid)
+            let fallbackAttempted = false
+            let fallbackError = ''
+
+            // 某些环境下 SnsTimeLine 统计查询会返回 0，这里在允许时回退到与导出同源的 timeline 接口统计。
+            if (
+                allowTimelineFallback &&
+                (totalPosts <= 0 || totalFriends <= 0) &&
+                now - this.lastTimelineFallbackAt >= this.timelineFallbackCooldownMs
+            ) {
+                fallbackAttempted = true
+                try {
+                    const timelineStats = await this.getExportStatsFromTimeline(myWxid)
+                    this.lastTimelineFallbackAt = Date.now()
+                    if (timelineStats.totalPosts > 0) {
+                        totalPosts = timelineStats.totalPosts
+                    }
+                    if (timelineStats.totalFriends > 0) {
+                        totalFriends = timelineStats.totalFriends
+                    }
+                    if (timelineStats.myPosts !== null) {
+                        myPosts = timelineStats.myPosts
+                    }
+                } catch (error) {
+                    fallbackError = String(error)
+                    console.error('[SnsService] getExportStats timeline fallback failed:', error)
+                }
+            }
+
+            const normalizedStats = {
+                totalPosts: Math.max(0, Number(totalPosts || 0)),
+                totalFriends: Math.max(0, Number(totalFriends || 0)),
+                myPosts: myWxid
+                    ? (myPosts === null ? null : Math.max(0, Number(myPosts || 0)))
+                    : null
+            }
+            const computedHasData = normalizedStats.totalPosts > 0 || normalizedStats.totalFriends > 0
+            const cacheHasData = !!this.exportStatsCache && (this.exportStatsCache.totalPosts > 0 || this.exportStatsCache.totalFriends > 0)
+
+            // 计算结果全 0 时，优先使用已有非零缓存，避免瞬时异常覆盖有效统计。
+            if (!computedHasData && cacheHasData && this.exportStatsCache) {
+                return {
+                    success: true,
+                    data: {
+                        totalPosts: this.exportStatsCache.totalPosts,
+                        totalFriends: this.exportStatsCache.totalFriends,
+                        myPosts: this.exportStatsCache.myPosts
+                    }
+                }
+            }
+
+            // 当主查询结果全 0 且回退统计执行失败时，返回失败给前端显示明确状态（而非错误地展示 0）。
+            if (!computedHasData && fallbackAttempted && fallbackError) {
+                return { success: false, error: fallbackError }
+            }
+
+            this.exportStatsCache = {
+                totalPosts: normalizedStats.totalPosts,
+                totalFriends: normalizedStats.totalFriends,
+                myPosts: normalizedStats.myPosts,
+                updatedAt: Date.now()
+            }
+
+            return { success: true, data: normalizedStats }
+        } catch (e) {
+            if (this.exportStatsCache) {
+                return {
+                    success: true,
+                    data: {
+                        totalPosts: this.exportStatsCache.totalPosts,
+                        totalFriends: this.exportStatsCache.totalFriends,
+                        myPosts: this.exportStatsCache.myPosts
+                    }
+                }
+            }
+            return { success: false, error: String(e) }
+        }
+    }
+
+    async getExportStatsFast(): Promise<{ success: boolean; data?: { totalPosts: number; totalFriends: number; myPosts: number | null }; error?: string }> {
+        return this.getExportStats({
+            allowTimelineFallback: false,
+            preferCache: true
+        })
     }
 
     // 安装朋友圈删除拦截
@@ -563,14 +1068,44 @@ class SnsService {
      */
     async exportTimeline(options: {
         outputDir: string
-        format: 'json' | 'html'
+        format: 'json' | 'html' | 'arkmejson'
         usernames?: string[]
         keyword?: string
         exportMedia?: boolean
+        exportImages?: boolean
+        exportLivePhotos?: boolean
+        exportVideos?: boolean
         startTime?: number
         endTime?: number
-    }, progressCallback?: (progress: { current: number; total: number; status: string }) => void): Promise<{ success: boolean; filePath?: string; postCount?: number; mediaCount?: number; error?: string }> {
-        const { outputDir, format, usernames, keyword, exportMedia = false, startTime, endTime } = options
+    }, progressCallback?: (progress: { current: number; total: number; status: string }) => void, control?: {
+        shouldPause?: () => boolean
+        shouldStop?: () => boolean
+    }): Promise<{ success: boolean; filePath?: string; postCount?: number; mediaCount?: number; paused?: boolean; stopped?: boolean; error?: string }> {
+        const { outputDir, format, usernames, keyword, startTime, endTime } = options
+        const hasExplicitMediaSelection =
+            typeof options.exportImages === 'boolean' ||
+            typeof options.exportLivePhotos === 'boolean' ||
+            typeof options.exportVideos === 'boolean'
+        const shouldExportImages = hasExplicitMediaSelection
+            ? options.exportImages === true
+            : options.exportMedia === true
+        const shouldExportLivePhotos = hasExplicitMediaSelection
+            ? options.exportLivePhotos === true
+            : options.exportMedia === true
+        const shouldExportVideos = hasExplicitMediaSelection
+            ? options.exportVideos === true
+            : options.exportMedia === true
+        const shouldExportMedia = shouldExportImages || shouldExportLivePhotos || shouldExportVideos
+        const getControlState = (): 'paused' | 'stopped' | null => {
+            if (control?.shouldStop?.()) return 'stopped'
+            if (control?.shouldPause?.()) return 'paused'
+            return null
+        }
+        const buildInterruptedResult = (state: 'paused' | 'stopped', postCount: number, mediaCount: number) => (
+            state === 'stopped'
+                ? { success: true, stopped: true, filePath: '', postCount, mediaCount }
+                : { success: true, paused: true, filePath: '', postCount, mediaCount }
+        )
 
         try {
             // 确保输出目录存在
@@ -587,6 +1122,10 @@ class SnsService {
             progressCallback?.({ current: 0, total: 0, status: '正在加载朋友圈数据...' })
 
             while (hasMore) {
+                const controlState = getControlState()
+                if (controlState) {
+                    return buildInterruptedResult(controlState, allPosts.length, 0)
+                }
                 const result = await this.getTimeline(pageSize, 0, usernames, keyword, startTime, endTs)
                 if (result.success && result.timeline && result.timeline.length > 0) {
                     allPosts.push(...result.timeline)
@@ -614,15 +1153,54 @@ class SnsService {
             let mediaCount = 0
             const mediaDir = join(outputDir, 'media')
 
-            if (exportMedia) {
+            if (shouldExportMedia) {
                 if (!existsSync(mediaDir)) {
                     mkdirSync(mediaDir, { recursive: true })
                 }
 
                 // 收集所有媒体下载任务
-                const mediaTasks: { media: SnsMedia; postId: string; mi: number }[] = []
+                const mediaTasks: Array<{
+                    kind: 'image' | 'video' | 'livephoto'
+                    media: SnsMedia
+                    url: string
+                    key?: string
+                    postId: string
+                    mi: number
+                }> = []
                 for (const post of allPosts) {
-                    post.media.forEach((media, mi) => mediaTasks.push({ media, postId: post.id, mi }))
+                    post.media.forEach((media, mi) => {
+                        const isVideo = isVideoUrl(media.url)
+                        if (shouldExportImages && !isVideo && media.url) {
+                            mediaTasks.push({
+                                kind: 'image',
+                                media,
+                                url: media.url,
+                                key: media.key,
+                                postId: post.id,
+                                mi
+                            })
+                        }
+                        if (shouldExportVideos && isVideo && media.url) {
+                            mediaTasks.push({
+                                kind: 'video',
+                                media,
+                                url: media.url,
+                                key: media.key,
+                                postId: post.id,
+                                mi
+                            })
+                        }
+                        if (shouldExportLivePhotos && media.livePhoto?.url) {
+                            mediaTasks.push({
+                                kind: 'livephoto',
+                                media,
+                                url: media.livePhoto.url,
+                                key: media.livePhoto.key || media.key,
+                                postId: post.id,
+                                mi
+                            })
+                        }
+                    })
                 }
 
                 // 并发下载（5路）
@@ -631,29 +1209,42 @@ class SnsService {
                 const runTask = async (task: typeof mediaTasks[0]) => {
                     const { media, postId, mi } = task
                     try {
-                        const isVideo = isVideoUrl(media.url)
+                        const isVideo = task.kind === 'video' || task.kind === 'livephoto' || isVideoUrl(task.url)
                         const ext = isVideo ? 'mp4' : 'jpg'
-                        const fileName = `${postId}_${mi}.${ext}`
+                        const suffix = task.kind === 'livephoto' ? '_live' : ''
+                        const fileName = `${postId}_${mi}${suffix}.${ext}`
                         const filePath = join(mediaDir, fileName)
 
                         if (existsSync(filePath)) {
-                            ;(media as any).localPath = `media/${fileName}`
+                            if (task.kind === 'livephoto') {
+                                if (media.livePhoto) (media.livePhoto as any).localPath = `media/${fileName}`
+                            } else {
+                                ;(media as any).localPath = `media/${fileName}`
+                            }
                             mediaCount++
                         } else {
-                            const result = await this.fetchAndDecryptImage(media.url, media.key)
+                            const result = await this.fetchAndDecryptImage(task.url, task.key)
                             if (result.success && result.data) {
                                 await writeFile(filePath, result.data)
-                                ;(media as any).localPath = `media/${fileName}`
+                                if (task.kind === 'livephoto') {
+                                    if (media.livePhoto) (media.livePhoto as any).localPath = `media/${fileName}`
+                                } else {
+                                    ;(media as any).localPath = `media/${fileName}`
+                                }
                                 mediaCount++
                             } else if (result.success && result.cachePath) {
                                 const cachedData = await readFile(result.cachePath)
                                 await writeFile(filePath, cachedData)
-                                ;(media as any).localPath = `media/${fileName}`
+                                if (task.kind === 'livephoto') {
+                                    if (media.livePhoto) (media.livePhoto as any).localPath = `media/${fileName}`
+                                } else {
+                                    ;(media as any).localPath = `media/${fileName}`
+                                }
                                 mediaCount++
                             }
                         }
                     } catch (e) {
-                        console.warn(`[SnsExport] 媒体下载失败: ${task.media.url}`, e)
+                        console.warn(`[SnsExport] 媒体下载失败: ${task.url}`, e)
                     }
                     done++
                     progressCallback?.({ current: done, total: mediaTasks.length, status: `正在下载媒体 (${done}/${mediaTasks.length})...` })
@@ -663,11 +1254,18 @@ class SnsService {
                 const queue = [...mediaTasks]
                 const workers = Array.from({ length: Math.min(concurrency, queue.length) }, async () => {
                     while (queue.length > 0) {
+                        const controlState = getControlState()
+                        if (controlState) return controlState
                         const task = queue.shift()!
                         await runTask(task)
                     }
+                    return null
                 })
-                await Promise.all(workers)
+                const workerResults = await Promise.all(workers)
+                const interruptedState = workerResults.find(state => state === 'paused' || state === 'stopped')
+                if (interruptedState) {
+                    return buildInterruptedResult(interruptedState, allPosts.length, mediaCount)
+                }
             }
 
             // 2.5 下载头像
@@ -679,6 +1277,8 @@ class SnsService {
                 const avatarQueue = [...uniqueUsers]
                 const avatarWorkers = Array.from({ length: Math.min(5, avatarQueue.length) }, async () => {
                     while (avatarQueue.length > 0) {
+                        const controlState = getControlState()
+                        if (controlState) return controlState
                         const post = avatarQueue.shift()!
                         try {
                             const fileName = `avatar_${crypto.createHash('md5').update(post.username).digest('hex').slice(0, 8)}.jpg`
@@ -696,11 +1296,20 @@ class SnsService {
                         avatarDone++
                         progressCallback?.({ current: avatarDone, total: uniqueUsers.length, status: `正在下载头像 (${avatarDone}/${uniqueUsers.length})...` })
                     }
+                    return null
                 })
-                await Promise.all(avatarWorkers)
+                const avatarWorkerResults = await Promise.all(avatarWorkers)
+                const interruptedState = avatarWorkerResults.find(state => state === 'paused' || state === 'stopped')
+                if (interruptedState) {
+                    return buildInterruptedResult(interruptedState, allPosts.length, mediaCount)
+                }
             }
 
             // 3. 生成输出文件
+            const finalControlState = getControlState()
+            if (finalControlState) {
+                return buildInterruptedResult(finalControlState, allPosts.length, mediaCount)
+            }
             const timestamp = new Date().toISOString().replace(/[:.]/g, '-').slice(0, 19)
             let outputFilePath: string
 
@@ -733,6 +1342,92 @@ class SnsService {
                     }))
                 }
                 await writeFile(outputFilePath, JSON.stringify(exportData, null, 2), 'utf-8')
+            } else if (format === 'arkmejson') {
+                outputFilePath = join(outputDir, `朋友圈导出_${timestamp}.json`)
+                progressCallback?.({ current: 0, total: allPosts.length, status: '正在构建 ArkmeJSON 数据...' })
+
+                const identityCache = new Map<string, Promise<SnsContactIdentity | null>>()
+                const posts: any[] = []
+                let built = 0
+
+                for (const post of allPosts) {
+                    const controlState = getControlState()
+                    if (controlState) {
+                        return buildInterruptedResult(controlState, allPosts.length, mediaCount)
+                    }
+
+                    const authorIdentity = await this.resolveContactIdentity(post.username, identityCache)
+                    const { likesDetail, commentsDetail } = await this.buildArkmeInteractionDetails(post, identityCache)
+
+                    posts.push({
+                        id: post.id,
+                        username: post.username,
+                        nickname: post.nickname,
+                        author: authorIdentity
+                            ? {
+                                ...authorIdentity
+                            }
+                            : {
+                                username: post.username,
+                                wxid: post.username,
+                                displayName: post.nickname || post.username
+                            },
+                        createTime: post.createTime,
+                        createTimeStr: new Date(post.createTime * 1000).toLocaleString('zh-CN'),
+                        contentDesc: post.contentDesc,
+                        type: post.type,
+                        media: post.media.map(m => ({
+                            url: m.url,
+                            thumb: m.thumb,
+                            localPath: (m as any).localPath || undefined,
+                            livePhoto: m.livePhoto ? {
+                                url: m.livePhoto.url,
+                                thumb: m.livePhoto.thumb,
+                                localPath: (m.livePhoto as any).localPath || undefined
+                            } : undefined
+                        })),
+                        likes: post.likes,
+                        comments: post.comments,
+                        likesDetail,
+                        commentsDetail,
+                        linkTitle: (post as any).linkTitle,
+                        linkUrl: (post as any).linkUrl
+                    })
+
+                    built++
+                    if (built % 20 === 0 || built === allPosts.length) {
+                        progressCallback?.({ current: built, total: allPosts.length, status: `正在构建 ArkmeJSON 数据 (${built}/${allPosts.length})...` })
+                    }
+                }
+
+                const ownerWxid = this.toOptionalString(this.configService.get('myWxid'))
+                const ownerIdentity = ownerWxid
+                    ? await this.resolveContactIdentity(ownerWxid, identityCache)
+                    : null
+                const recordOwner = ownerIdentity
+                    ? { ...ownerIdentity }
+                    : ownerWxid
+                        ? { username: ownerWxid, wxid: ownerWxid, displayName: ownerWxid }
+                        : { username: '', wxid: '', displayName: '' }
+
+                const exportData = {
+                    exportTime: new Date().toISOString(),
+                    format: 'arkmejson',
+                    schemaVersion: '1.0.0',
+                    recordOwner,
+                    mediaSelection: {
+                        images: shouldExportImages,
+                        livePhotos: shouldExportLivePhotos,
+                        videos: shouldExportVideos
+                    },
+                    totalPosts: allPosts.length,
+                    filters: {
+                        usernames: usernames || [],
+                        keyword: keyword || ''
+                    },
+                    posts
+                }
+                await writeFile(outputFilePath, JSON.stringify(exportData, null, 2), 'utf-8')
             } else {
                 // HTML 格式
                 outputFilePath = join(outputDir, `朋友圈导出_${timestamp}.html`)

electron/services/wcdbCore.ts

@@ -1167,6 +1167,40 @@ export class WcdbCore {
     }
   }
 
+  async getMessageCounts(sessionIds: string[]): Promise<{ success: boolean; counts?: Record<string, number>; error?: string }> {
+    if (!this.ensureReady()) {
+      return { success: false, error: 'WCDB 未连接' }
+    }
+
+    const normalizedSessionIds = Array.from(
+      new Set(
+        (sessionIds || [])
+          .map((id) => String(id || '').trim())
+          .filter(Boolean)
+      )
+    )
+    if (normalizedSessionIds.length === 0) {
+      return { success: true, counts: {} }
+    }
+
+    try {
+      const counts: Record<string, number> = {}
+      for (let i = 0; i < normalizedSessionIds.length; i += 1) {
+        const sessionId = normalizedSessionIds[i]
+        const outCount = [0]
+        const result = this.wcdbGetMessageCount(this.handle, sessionId, outCount)
+        counts[sessionId] = result === 0 && Number.isFinite(outCount[0]) ? Math.max(0, Math.floor(outCount[0])) : 0
+
+        if (i > 0 && i % 160 === 0) {
+          await new Promise(resolve => setImmediate(resolve))
+        }
+      }
+      return { success: true, counts }
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
   async getDisplayNames(usernames: string[]): Promise<{ success: boolean; map?: Record<string, string>; error?: string }> {
     if (!this.ensureReady()) {
       return { success: false, error: 'WCDB 未连接' }
@@ -2165,4 +2199,3 @@ export class WcdbCore {
     })
   }
 }
-

electron/services/wcdbService.ts

@@ -218,6 +218,10 @@ export class WcdbService {
     return this.callWorker('getMessageCount', { sessionId })
   }
 
+  async getMessageCounts(sessionIds: string[]): Promise<{ success: boolean; counts?: Record<string, number>; error?: string }> {
+    return this.callWorker('getMessageCounts', { sessionIds })
+  }
+
   /**
    * 获取联系人昵称
    */

electron/wcdbWorker.ts

@@ -54,6 +54,9 @@ if (parentPort) {
                 case 'getMessageCount':
                     result = await core.getMessageCount(payload.sessionId)
                     break
+                case 'getMessageCounts':
+                    result = await core.getMessageCounts(payload.sessionIds)
+                    break
                 case 'getDisplayNames':
                     result = await core.getDisplayNames(payload.usernames)
                     break

package.json

@@ -13,6 +13,7 @@
     "postinstall": "electron-builder install-app-deps",
     "rebuild": "electron-rebuild",
     "dev": "vite",
+    "typecheck": "tsc --noEmit",
     "build": "tsc && vite build && electron-builder",
     "preview": "vite preview",
     "electron:dev": "vite --mode electron",

src/App.scss

@@ -69,6 +69,19 @@
   flex: 1;
   overflow: auto;
   padding: 24px;
+  position: relative;
+}
+
+.export-keepalive-page {
+  height: 100%;
+
+  &.hidden {
+    display: none;
+  }
+}
+
+.export-route-anchor {
+  display: none;
 }
 
 @keyframes appFadeIn {

src/App.tsx

@@ -61,7 +61,9 @@ function App() {
   const isOnboardingWindow = location.pathname === '/onboarding-window'
   const isVideoPlayerWindow = location.pathname === '/video-player-window'
   const isChatHistoryWindow = location.pathname.startsWith('/chat-history/')
+  const isStandaloneChatWindow = location.pathname === '/chat-window'
   const isNotificationWindow = location.pathname === '/notification-window'
+  const isExportRoute = location.pathname === '/export'
   const [themeHydrated, setThemeHydrated] = useState(false)
 
   // 锁定状态
@@ -398,6 +400,12 @@ function App() {
     return <ChatHistoryPage />
   }
 
+  // 独立会话聊天窗口（仅显示聊天内容区域）
+  if (isStandaloneChatWindow) {
+    const sessionId = new URLSearchParams(location.search).get('sessionId') || ''
+    return <ChatPage standaloneSessionWindow initialSessionId={sessionId} />
+  }
+
   // 独立通知窗口
   if (isNotificationWindow) {
     return <NotificationWindow />
@@ -528,6 +536,10 @@ function App() {
         <Sidebar />
         <main className="content">
           <RouteGuard>
+            <div className={`export-keepalive-page ${isExportRoute ? 'active' : 'hidden'}`} aria-hidden={!isExportRoute}>
+              <ExportPage />
+            </div>
+
             <Routes>
               <Route path="/" element={<HomePage />} />
               <Route path="/home" element={<HomePage />} />
@@ -542,7 +554,7 @@ function App() {
               <Route path="/dual-report/view" element={<DualReportWindow />} />
 
               <Route path="/settings" element={<SettingsPage />} />
-              <Route path="/export" element={<ExportPage />} />
+              <Route path="/export" element={<div className="export-route-anchor" aria-hidden="true" />} />
               <Route path="/sns" element={<SnsPage />} />
               <Route path="/contacts" element={<ContactsPage />} />
               <Route path="/chat-history/:sessionId/:messageId" element={<ChatHistoryPage />} />

src/components/GlobalSessionMonitor.tsx

@@ -198,11 +198,12 @@ export function GlobalSessionMonitor() {
                         // 尝试丰富或获取联系人详情
                         const contact = await window.electronAPI.chat.getContact(newSession.username)
                         if (contact) {
-                            if (contact.remark || contact.nickname) {
-                                title = contact.remark || contact.nickname
+                            if (contact.remark || contact.nickName) {
+                                title = contact.remark || contact.nickName
                             }
-                            if (contact.avatarUrl) {
-                                avatarUrl = contact.avatarUrl
+                            const avatarResult = await window.electronAPI.chat.getContactAvatar(newSession.username)
+                            if (avatarResult?.avatarUrl) {
+                                avatarUrl = avatarResult.avatarUrl
                             }
                         } else {
                             // 如果不在缓存/数据库中
@@ -222,8 +223,11 @@ export function GlobalSessionMonitor() {
                             if (title === newSession.username || title.startsWith('wxid_')) {
                                 const retried = await window.electronAPI.chat.getContact(newSession.username)
                                 if (retried) {
-                                    title = retried.remark || retried.nickname || title
-                                    avatarUrl = retried.avatarUrl || avatarUrl
+                                    title = retried.remark || retried.nickName || title
+                                    const retriedAvatar = await window.electronAPI.chat.getContactAvatar(newSession.username)
+                                    if (retriedAvatar?.avatarUrl) {
+                                        avatarUrl = retriedAvatar.avatarUrl
+                                    }
                                 }
                             }
                         }

src/components/JumpToDatePopover.scss

@@ -0,0 +1,166 @@
+.jump-date-popover {
+  position: absolute;
+  top: calc(100% + 10px);
+  right: 0;
+  width: 312px;
+  border-radius: 14px;
+  border: 1px solid var(--border-color);
+  background: none;
+  background-color: var(--bg-secondary-solid, #ffffff) !important;
+  opacity: 1;
+  backdrop-filter: none !important;
+  -webkit-backdrop-filter: none !important;
+  mix-blend-mode: normal;
+  isolation: isolate;
+  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
+  padding: 12px;
+  z-index: 1600;
+}
+
+.jump-date-popover .calendar-nav {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 10px;
+}
+
+.jump-date-popover .current-month {
+  font-size: 14px;
+  font-weight: 600;
+  color: var(--text-primary);
+}
+
+.jump-date-popover .nav-btn {
+  width: 28px;
+  height: 28px;
+  border: 1px solid var(--border-color);
+  border-radius: 8px;
+  background: none;
+  background-color: var(--bg-secondary-solid, #ffffff) !important;
+  color: var(--text-secondary);
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  transition: all 0.18s ease;
+}
+
+.jump-date-popover .nav-btn:hover {
+  border-color: var(--primary);
+  color: var(--primary);
+  background: var(--bg-hover);
+}
+
+.jump-date-popover .status-line {
+  min-height: 16px;
+  margin-bottom: 6px;
+}
+
+.jump-date-popover .status-item {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+  color: var(--text-tertiary);
+  font-size: 11px;
+}
+
+.jump-date-popover .calendar-grid .weekdays {
+  display: grid;
+  grid-template-columns: repeat(7, 1fr);
+  margin-bottom: 6px;
+}
+
+.jump-date-popover .calendar-grid .weekday {
+  text-align: center;
+  font-size: 11px;
+  color: var(--text-tertiary);
+}
+
+.jump-date-popover .calendar-grid .days {
+  display: grid;
+  grid-template-columns: repeat(7, 1fr);
+  grid-template-rows: repeat(6, 36px);
+  gap: 4px;
+}
+
+.jump-date-popover .day-cell {
+  position: relative;
+  border: 1px solid transparent;
+  border-radius: 8px;
+  background: transparent;
+  color: var(--text-primary);
+  cursor: pointer;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 1px;
+  padding: 0;
+  font-size: 13px;
+  transition: all 0.18s ease;
+}
+
+.jump-date-popover .day-cell .day-number {
+  position: relative;
+  z-index: 1;
+  font-size: 12px;
+  line-height: 1;
+  font-weight: 500;
+}
+
+.jump-date-popover .day-cell.empty {
+  cursor: default;
+  background: transparent;
+}
+
+.jump-date-popover .day-cell:not(.empty):not(.no-message):hover {
+  background: var(--bg-hover);
+}
+
+.jump-date-popover .day-cell.today {
+  border-color: var(--primary-light);
+  color: var(--primary);
+}
+
+.jump-date-popover .day-cell.selected {
+  background: var(--primary);
+  color: #fff;
+}
+
+.jump-date-popover .day-cell.no-message {
+  opacity: 0.5;
+  cursor: default;
+}
+
+.jump-date-popover .day-count {
+  position: static;
+  margin-top: 1px;
+  font-size: 13px;
+  line-height: 1;
+  color: #16a34a;
+  font-weight: 700;
+}
+
+.jump-date-popover .day-cell.selected .day-count {
+  color: #86efac;
+}
+
+.jump-date-popover .day-count-loading {
+  position: static;
+  margin-top: 1px;
+  color: #22c55e;
+}
+
+.jump-date-popover .spin {
+  animation: jump-date-spin 1s linear infinite;
+}
+
+@keyframes jump-date-spin {
+  from {
+    transform: rotate(0deg);
+  }
+
+  to {
+    transform: rotate(360deg);
+  }
+}

src/components/JumpToDatePopover.tsx

@@ -0,0 +1,185 @@
+import React, { useEffect, useState } from 'react'
+import { ChevronLeft, ChevronRight, Loader2 } from 'lucide-react'
+import './JumpToDatePopover.scss'
+
+interface JumpToDatePopoverProps {
+  isOpen: boolean
+  onClose: () => void
+  onSelect: (date: Date) => void
+  className?: string
+  style?: React.CSSProperties
+  currentDate?: Date
+  messageDates?: Set<string>
+  hasLoadedMessageDates?: boolean
+  messageDateCounts?: Record<string, number>
+  loadingDates?: boolean
+  loadingDateCounts?: boolean
+}
+
+const JumpToDatePopover: React.FC<JumpToDatePopoverProps> = ({
+  isOpen,
+  onClose,
+  onSelect,
+  className,
+  style,
+  currentDate = new Date(),
+  messageDates,
+  hasLoadedMessageDates = false,
+  messageDateCounts,
+  loadingDates = false,
+  loadingDateCounts = false
+}) => {
+  const [calendarDate, setCalendarDate] = useState<Date>(new Date(currentDate))
+  const [selectedDate, setSelectedDate] = useState<Date>(new Date(currentDate))
+
+  useEffect(() => {
+    if (!isOpen) return
+    const normalized = new Date(currentDate)
+    setCalendarDate(normalized)
+    setSelectedDate(normalized)
+  }, [isOpen, currentDate])
+
+  if (!isOpen) return null
+
+  const getDaysInMonth = (date: Date): number => {
+    const year = date.getFullYear()
+    const month = date.getMonth()
+    return new Date(year, month + 1, 0).getDate()
+  }
+
+  const getFirstDayOfMonth = (date: Date): number => {
+    const year = date.getFullYear()
+    const month = date.getMonth()
+    return new Date(year, month, 1).getDay()
+  }
+
+  const toDateKey = (day: number): string => {
+    const year = calendarDate.getFullYear()
+    const month = calendarDate.getMonth() + 1
+    return `${year}-${String(month).padStart(2, '0')}-${String(day).padStart(2, '0')}`
+  }
+
+  const hasMessage = (day: number): boolean => {
+    if (!hasLoadedMessageDates) return true
+    if (!messageDates || messageDates.size === 0) return false
+    return messageDates.has(toDateKey(day))
+  }
+
+  const isToday = (day: number): boolean => {
+    const today = new Date()
+    return day === today.getDate()
+      && calendarDate.getMonth() === today.getMonth()
+      && calendarDate.getFullYear() === today.getFullYear()
+  }
+
+  const isSelected = (day: number): boolean => {
+    return day === selectedDate.getDate()
+      && calendarDate.getMonth() === selectedDate.getMonth()
+      && calendarDate.getFullYear() === selectedDate.getFullYear()
+  }
+
+  const generateCalendar = (): Array<number | null> => {
+    const daysInMonth = getDaysInMonth(calendarDate)
+    const firstDay = getFirstDayOfMonth(calendarDate)
+    const days: Array<number | null> = []
+
+    for (let i = 0; i < firstDay; i++) {
+      days.push(null)
+    }
+    for (let i = 1; i <= daysInMonth; i++) {
+      days.push(i)
+    }
+    return days
+  }
+
+  const handleDateClick = (day: number) => {
+    if (hasLoadedMessageDates && !hasMessage(day)) return
+    const targetDate = new Date(calendarDate.getFullYear(), calendarDate.getMonth(), day)
+    setSelectedDate(targetDate)
+    onSelect(targetDate)
+    onClose()
+  }
+
+  const getDayClassName = (day: number | null): string => {
+    if (day === null) return 'day-cell empty'
+    const classes = ['day-cell']
+    if (isToday(day)) classes.push('today')
+    if (isSelected(day)) classes.push('selected')
+    if (hasLoadedMessageDates && !hasMessage(day)) classes.push('no-message')
+    return classes.join(' ')
+  }
+
+  const weekdays = ['日', '一', '二', '三', '四', '五', '六']
+  const days = generateCalendar()
+  const mergedClassName = ['jump-date-popover', className || ''].join(' ').trim()
+
+  return (
+    <div className={mergedClassName} style={style} role="dialog" aria-label="跳转日期">
+      <div className="calendar-nav">
+        <button
+          className="nav-btn"
+          onClick={() => setCalendarDate(new Date(calendarDate.getFullYear(), calendarDate.getMonth() - 1, 1))}
+          aria-label="上一月"
+        >
+          <ChevronLeft size={16} />
+        </button>
+        <span className="current-month">{calendarDate.getFullYear()}年{calendarDate.getMonth() + 1}月</span>
+        <button
+          className="nav-btn"
+          onClick={() => setCalendarDate(new Date(calendarDate.getFullYear(), calendarDate.getMonth() + 1, 1))}
+          aria-label="下一月"
+        >
+          <ChevronRight size={16} />
+        </button>
+      </div>
+
+      <div className="status-line">
+        {loadingDates && (
+          <span className="status-item">
+            <Loader2 size={12} className="spin" />
+            <span>日期加载中</span>
+          </span>
+        )}
+        {!loadingDates && loadingDateCounts && (
+          <span className="status-item">
+            <Loader2 size={12} className="spin" />
+            <span>条数加载中</span>
+          </span>
+        )}
+      </div>
+
+      <div className="calendar-grid">
+        <div className="weekdays">
+          {weekdays.map(day => (
+            <div key={day} className="weekday">{day}</div>
+          ))}
+        </div>
+        <div className="days">
+          {days.map((day, index) => {
+            if (day === null) return <div key={index} className="day-cell empty" />
+            const dateKey = toDateKey(day)
+            const hasMessageOnDay = hasMessage(day)
+            const count = Number(messageDateCounts?.[dateKey] || 0)
+            const showCount = count > 0
+            const showCountLoading = hasMessageOnDay && loadingDateCounts && !showCount
+            return (
+              <button
+                key={index}
+                className={getDayClassName(day)}
+                onClick={() => handleDateClick(day)}
+                disabled={hasLoadedMessageDates && !hasMessageOnDay}
+                type="button"
+              >
+                <span className="day-number">{day}</span>
+                {showCount && <span className="day-count">{count}</span>}
+                {showCountLoading && <Loader2 size={11} className="day-count-loading spin" />}
+              </button>
+            )
+          })}
+        </div>
+      </div>
+    </div>
+  )
+}
+
+export default JumpToDatePopover

src/components/Sidebar.scss

@@ -10,6 +10,19 @@
   &.collapsed {
     width: 64px;
 
+    .sidebar-user-card-wrap {
+      margin: 0 8px 8px;
+    }
+
+    .sidebar-user-card {
+      padding: 8px 0;
+      justify-content: center;
+
+      .user-meta {
+        display: none;
+      }
+    }
+
     .nav-menu,
     .sidebar-footer {
       padding: 0 8px;
@@ -27,6 +40,119 @@
   }
 }
 
+.sidebar-user-card-wrap {
+  position: relative;
+  margin: 0 12px 10px;
+}
+
+.sidebar-user-clear-trigger {
+  position: absolute;
+  left: 0;
+  right: 0;
+  bottom: calc(100% + 8px);
+  z-index: 12;
+  border: 1px solid rgba(255, 59, 48, 0.28);
+  border-radius: 10px;
+  background: var(--bg-secondary);
+  color: #d93025;
+  padding: 8px 10px;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 12px;
+  font-weight: 600;
+  cursor: pointer;
+  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
+  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
+
+  &:hover {
+    background: rgba(255, 59, 48, 0.08);
+    border-color: rgba(255, 59, 48, 0.46);
+  }
+}
+
+.sidebar-user-card {
+  width: 100%;
+  padding: 10px;
+  border: 1px solid var(--border-color);
+  border-radius: 12px;
+  background: var(--bg-secondary);
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-height: 56px;
+  cursor: pointer;
+  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
+
+  &:hover {
+    border-color: rgba(99, 102, 241, 0.32);
+    background: var(--bg-tertiary);
+  }
+
+  &.menu-open {
+    border-color: rgba(99, 102, 241, 0.44);
+    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.12);
+  }
+
+  .user-avatar {
+    width: 36px;
+    height: 36px;
+    border-radius: 10px;
+    overflow: hidden;
+    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    flex-shrink: 0;
+
+    img {
+      width: 100%;
+      height: 100%;
+      object-fit: cover;
+    }
+
+    span {
+      color: #fff;
+      font-size: 14px;
+      font-weight: 600;
+    }
+  }
+
+  .user-meta {
+    min-width: 0;
+    flex: 1;
+  }
+
+  .user-name {
+    font-size: 13px;
+    color: var(--text-primary);
+    font-weight: 600;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+
+  .user-wxid {
+    margin-top: 2px;
+    font-size: 11px;
+    color: var(--text-tertiary);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+
+  .user-menu-caret {
+    color: var(--text-tertiary);
+    display: inline-flex;
+    transition: transform 0.2s ease, color 0.2s ease;
+
+    &.open {
+      transform: rotate(180deg);
+      color: var(--text-secondary);
+    }
+  }
+}
+
 .nav-menu {
   flex: 1;
   display: flex;
@@ -70,11 +196,44 @@
   flex-shrink: 0;
 }
 
+.nav-icon-with-badge {
+  position: relative;
+}
+
 .nav-label {
   font-size: 14px;
   font-weight: 500;
 }
 
+.nav-badge {
+  margin-left: auto;
+  min-width: 20px;
+  height: 20px;
+  border-radius: 999px;
+  padding: 0 6px;
+  background: #ff3b30;
+  color: #ffffff;
+  font-size: 11px;
+  font-weight: 700;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  line-height: 1;
+  box-shadow: 0 0 0 2px rgba(255, 59, 48, 0.18);
+}
+
+.nav-badge.icon-badge {
+  position: absolute;
+  top: -7px;
+  right: -10px;
+  margin-left: 0;
+  min-width: 16px;
+  height: 16px;
+  padding: 0 4px;
+  font-size: 10px;
+  box-shadow: 0 0 0 2px var(--bg-secondary);
+}
+
 .sidebar-footer {
   padding: 0 12px;
   border-top: 1px solid var(--border-color);
@@ -105,6 +264,82 @@
   }
 }
 
+.sidebar-clear-dialog-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(15, 23, 42, 0.3);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 1100;
+  padding: 20px;
+}
+
+.sidebar-clear-dialog {
+  width: min(460px, 100%);
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-color);
+  border-radius: 16px;
+  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.24);
+  padding: 18px 18px 16px;
+
+  h3 {
+    margin: 0;
+    font-size: 16px;
+    color: var(--text-primary);
+  }
+
+  p {
+    margin: 10px 0 0;
+    font-size: 13px;
+    line-height: 1.6;
+    color: var(--text-secondary);
+  }
+}
+
+.sidebar-clear-options {
+  margin-top: 14px;
+  display: flex;
+  gap: 14px;
+  flex-wrap: wrap;
+
+  label {
+    display: inline-flex;
+    align-items: center;
+    gap: 6px;
+    font-size: 13px;
+    color: var(--text-primary);
+  }
+}
+
+.sidebar-clear-actions {
+  margin-top: 18px;
+  display: flex;
+  justify-content: flex-end;
+  gap: 10px;
+
+  button {
+    border: 1px solid var(--border-color);
+    border-radius: 10px;
+    padding: 8px 14px;
+    font-size: 13px;
+    cursor: pointer;
+    background: var(--bg-secondary);
+    color: var(--text-primary);
+  }
+
+  button:disabled {
+    cursor: not-allowed;
+    opacity: 0.6;
+  }
+
+  .danger {
+    border-color: #ef4444;
+    background: #ef4444;
+    color: #fff;
+  }
+}
+
 // 繁花如梦主题：侧边栏毛玻璃 + 激活项用主品牌色
 [data-theme="blossom-dream"] .sidebar {
   background: rgba(255, 255, 255, 0.6);
@@ -130,4 +365,4 @@
   background: rgba(209, 158, 187, 0.15);
   color: #D19EBB;
   border: 1px solid rgba(209, 158, 187, 0.2);
-}
+}

src/components/Sidebar.tsx

@@ -1,23 +1,325 @@
-import { useState, useEffect } from 'react'
+import { useState, useEffect, useRef } from 'react'
 import { NavLink, useLocation } from 'react-router-dom'
-import { Home, MessageSquare, BarChart3, Users, FileText, Database, Settings, ChevronLeft, ChevronRight, Download, Aperture, UserCircle, Lock } from 'lucide-react'
+import { Home, MessageSquare, BarChart3, Users, FileText, Settings, ChevronLeft, ChevronRight, Download, Aperture, UserCircle, Lock, ChevronUp, Trash2 } from 'lucide-react'
 import { useAppStore } from '../stores/appStore'
+import * as configService from '../services/config'
+import { onExportSessionStatus, requestExportSessionStatus } from '../services/exportBridge'
 
 import './Sidebar.scss'
 
+interface SidebarUserProfile {
+  wxid: string
+  displayName: string
+  avatarUrl?: string
+}
+
+const SIDEBAR_USER_PROFILE_CACHE_KEY = 'sidebar_user_profile_cache_v1'
+
+interface SidebarUserProfileCache extends SidebarUserProfile {
+  updatedAt: number
+}
+
+const readSidebarUserProfileCache = (): SidebarUserProfile | null => {
+  try {
+    const raw = window.localStorage.getItem(SIDEBAR_USER_PROFILE_CACHE_KEY)
+    if (!raw) return null
+    const parsed = JSON.parse(raw) as SidebarUserProfileCache
+    if (!parsed || typeof parsed !== 'object') return null
+    if (!parsed.wxid || !parsed.displayName) return null
+    return {
+      wxid: parsed.wxid,
+      displayName: parsed.displayName,
+      avatarUrl: parsed.avatarUrl
+    }
+  } catch {
+    return null
+  }
+}
+
+const writeSidebarUserProfileCache = (profile: SidebarUserProfile): void => {
+  if (!profile.wxid || !profile.displayName) return
+  try {
+    const payload: SidebarUserProfileCache = {
+      ...profile,
+      updatedAt: Date.now()
+    }
+    window.localStorage.setItem(SIDEBAR_USER_PROFILE_CACHE_KEY, JSON.stringify(payload))
+  } catch {
+    // 忽略本地缓存失败，不影响主流程
+  }
+}
+
+const normalizeAccountId = (value?: string | null): string => {
+  const trimmed = String(value || '').trim()
+  if (!trimmed) return ''
+  if (trimmed.toLowerCase().startsWith('wxid_')) {
+    const match = trimmed.match(/^(wxid_[^_]+)/i)
+    return match?.[1] || trimmed
+  }
+  const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
+  return suffixMatch ? suffixMatch[1] : trimmed
+}
+
 function Sidebar() {
   const location = useLocation()
   const [collapsed, setCollapsed] = useState(false)
   const [authEnabled, setAuthEnabled] = useState(false)
+  const [activeExportTaskCount, setActiveExportTaskCount] = useState(0)
+  const [userProfile, setUserProfile] = useState<SidebarUserProfile>({
+    wxid: '',
+    displayName: '未识别用户'
+  })
+  const [isAccountMenuOpen, setIsAccountMenuOpen] = useState(false)
+  const [showClearAccountDialog, setShowClearAccountDialog] = useState(false)
+  const [shouldClearCacheData, setShouldClearCacheData] = useState(false)
+  const [shouldClearExportData, setShouldClearExportData] = useState(false)
+  const [isClearingAccountData, setIsClearingAccountData] = useState(false)
+  const accountCardWrapRef = useRef<HTMLDivElement | null>(null)
   const setLocked = useAppStore(state => state.setLocked)
 
   useEffect(() => {
     window.electronAPI.auth.verifyEnabled().then(setAuthEnabled)
   }, [])
 
+  useEffect(() => {
+    const handleClickOutside = (event: MouseEvent) => {
+      if (!isAccountMenuOpen) return
+      const target = event.target as Node | null
+      if (accountCardWrapRef.current && target && !accountCardWrapRef.current.contains(target)) {
+        setIsAccountMenuOpen(false)
+      }
+    }
+    document.addEventListener('mousedown', handleClickOutside)
+    return () => document.removeEventListener('mousedown', handleClickOutside)
+  }, [isAccountMenuOpen])
+
+  useEffect(() => {
+    const unsubscribe = onExportSessionStatus((payload) => {
+      const countFromPayload = typeof payload?.activeTaskCount === 'number'
+        ? payload.activeTaskCount
+        : Array.isArray(payload?.inProgressSessionIds)
+          ? payload.inProgressSessionIds.length
+          : 0
+      const normalized = Math.max(0, Math.floor(countFromPayload))
+      setActiveExportTaskCount(normalized)
+    })
+
+    requestExportSessionStatus()
+    const timer = window.setTimeout(() => requestExportSessionStatus(), 120)
+
+    return () => {
+      unsubscribe()
+      window.clearTimeout(timer)
+    }
+  }, [])
+
+  useEffect(() => {
+    const loadCurrentUser = async () => {
+      const patchUserProfile = (patch: Partial<SidebarUserProfile>, expectedWxid?: string) => {
+        setUserProfile(prev => {
+          if (expectedWxid && prev.wxid && prev.wxid !== expectedWxid) {
+            return prev
+          }
+          const next: SidebarUserProfile = {
+            ...prev,
+            ...patch
+          }
+          if (!next.displayName) {
+            next.displayName = next.wxid || '未识别用户'
+          }
+          writeSidebarUserProfileCache(next)
+          return next
+        })
+      }
+
+      try {
+        const wxid = await configService.getMyWxid()
+        const resolvedWxidRaw = String(wxid || '').trim()
+        const cleanedWxid = normalizeAccountId(resolvedWxidRaw)
+        const resolvedWxid = cleanedWxid || resolvedWxidRaw
+        const wxidCandidates = new Set<string>([
+          resolvedWxidRaw.toLowerCase(),
+          resolvedWxid.trim().toLowerCase(),
+          cleanedWxid.trim().toLowerCase()
+        ].filter(Boolean))
+
+        const normalizeName = (value?: string | null): string | undefined => {
+          if (!value) return undefined
+          const trimmed = value.trim()
+          if (!trimmed) return undefined
+          const lowered = trimmed.toLowerCase()
+          if (lowered === 'self') return undefined
+          if (lowered.startsWith('wxid_')) return undefined
+          if (wxidCandidates.has(lowered)) return undefined
+          return trimmed
+        }
+
+        const pickFirstValidName = (...candidates: Array<string | null | undefined>): string | undefined => {
+          for (const candidate of candidates) {
+            const normalized = normalizeName(candidate)
+            if (normalized) return normalized
+          }
+          return undefined
+        }
+
+        const fallbackDisplayName = resolvedWxid || '未识别用户'
+
+        // 第一阶段：先把 wxid/名称打上，保证侧边栏第一时间可见。
+        patchUserProfile({
+          wxid: resolvedWxid,
+          displayName: fallbackDisplayName
+        })
+
+        if (!resolvedWxidRaw && !resolvedWxid) return
+
+        // 第二阶段：后台补齐名称（不会阻塞首屏）。
+        void (async () => {
+          try {
+            let myContact: Awaited<ReturnType<typeof window.electronAPI.chat.getContact>> | null = null
+            for (const candidate of Array.from(new Set([resolvedWxidRaw, resolvedWxid, cleanedWxid].filter(Boolean)))) {
+              const contact = await window.electronAPI.chat.getContact(candidate)
+              if (!contact) continue
+              if (!myContact) myContact = contact
+              if (contact.remark || contact.nickName || contact.alias) {
+                myContact = contact
+                break
+              }
+            }
+            const fromContact = pickFirstValidName(
+              myContact?.remark,
+              myContact?.nickName,
+              myContact?.alias
+            )
+
+            if (fromContact) {
+              patchUserProfile({ displayName: fromContact }, resolvedWxid)
+              return
+            }
+
+            const enrichTargets = Array.from(new Set([resolvedWxidRaw, resolvedWxid, cleanedWxid, 'self'].filter(Boolean)))
+            const enrichedResult = await window.electronAPI.chat.enrichSessionsContactInfo(enrichTargets)
+            const enrichedDisplayName = pickFirstValidName(
+              enrichedResult.contacts?.[resolvedWxidRaw]?.displayName,
+              enrichedResult.contacts?.[resolvedWxid]?.displayName,
+              enrichedResult.contacts?.[cleanedWxid]?.displayName,
+              enrichedResult.contacts?.self?.displayName,
+              myContact?.alias
+            )
+            const bestName = enrichedDisplayName
+            if (bestName) {
+              patchUserProfile({ displayName: bestName }, resolvedWxid)
+            }
+          } catch (nameError) {
+            console.error('加载侧边栏用户昵称失败:', nameError)
+          }
+        })()
+
+        // 第二阶段：后台补齐头像（不会阻塞首屏）。
+        void (async () => {
+          try {
+            const avatarResult = await window.electronAPI.chat.getMyAvatarUrl()
+            if (avatarResult.success && avatarResult.avatarUrl) {
+              patchUserProfile({ avatarUrl: avatarResult.avatarUrl }, resolvedWxid)
+            }
+          } catch (avatarError) {
+            console.error('加载侧边栏用户头像失败:', avatarError)
+          }
+        })()
+      } catch (error) {
+        console.error('加载侧边栏用户信息失败:', error)
+      }
+    }
+
+    const cachedProfile = readSidebarUserProfileCache()
+    if (cachedProfile) {
+      setUserProfile(prev => ({
+        ...prev,
+        ...cachedProfile
+      }))
+    }
+
+    void loadCurrentUser()
+    const onWxidChanged = () => { void loadCurrentUser() }
+    window.addEventListener('wxid-changed', onWxidChanged as EventListener)
+    return () => window.removeEventListener('wxid-changed', onWxidChanged as EventListener)
+  }, [])
+
+  const getAvatarLetter = (name: string): string => {
+    if (!name) return '?'
+    return [...name][0] || '?'
+  }
+
   const isActive = (path: string) => {
     return location.pathname === path || location.pathname.startsWith(`${path}/`)
   }
+  const exportTaskBadge = activeExportTaskCount > 99 ? '99+' : `${activeExportTaskCount}`
+  const canConfirmClear = shouldClearCacheData || shouldClearExportData
+
+  const resetClearDialogState = () => {
+    setShouldClearCacheData(false)
+    setShouldClearExportData(false)
+    setShowClearAccountDialog(false)
+  }
+
+  const openClearAccountDialog = () => {
+    setIsAccountMenuOpen(false)
+    setShouldClearCacheData(false)
+    setShouldClearExportData(false)
+    setShowClearAccountDialog(true)
+  }
+
+  const handleConfirmClearAccountData = async () => {
+    if (!canConfirmClear || isClearingAccountData) return
+    setIsClearingAccountData(true)
+    try {
+      const result = await window.electronAPI.chat.clearCurrentAccountData({
+        clearCache: shouldClearCacheData,
+        clearExports: shouldClearExportData
+      })
+      if (!result.success) {
+        window.alert(result.error || '清理失败，请稍后重试。')
+        return
+      }
+      window.localStorage.removeItem(SIDEBAR_USER_PROFILE_CACHE_KEY)
+      setUserProfile({ wxid: '', displayName: '未识别用户' })
+      window.dispatchEvent(new Event('wxid-changed'))
+
+      const removedPaths = Array.isArray(result.removedPaths) ? result.removedPaths : []
+      const selectedScopes = [
+        shouldClearCacheData ? '缓存数据' : '',
+        shouldClearExportData ? '导出数据' : ''
+      ].filter(Boolean)
+      const detailLines: string[] = [
+        `清理范围：${selectedScopes.join('、') || '未选择'}`,
+        `已清理项目：${removedPaths.length} 项`
+      ]
+      if (removedPaths.length > 0) {
+        detailLines.push('', '清理明细（最多显示 8 项）：')
+        for (const [index, path] of removedPaths.slice(0, 8).entries()) {
+          detailLines.push(`${index + 1}. ${path}`)
+        }
+        if (removedPaths.length > 8) {
+          detailLines.push(`... 其余 ${removedPaths.length - 8} 项已省略`)
+        }
+      }
+      if (result.warning) {
+        detailLines.push('', `注意：${result.warning}`)
+      }
+      const followupHint = shouldClearCacheData
+        ? '若需再次获取数据，请手动登录微信客户端并重新在 WeFlow 完成配置。'
+        : '你可以继续使用当前登录状态，无需重新登录。'
+      window.alert(`账号数据清理完成。\n\n${detailLines.join('\n')}\n\n为保障数据安全，WeFlow 已清除该账号本地缓存/导出相关数据。${followupHint}`)
+      resetClearDialogState()
+      if (shouldClearCacheData) {
+        window.location.reload()
+      }
+    } catch (error) {
+      console.error('清理账号数据失败:', error)
+      window.alert('清理失败，请稍后重试。')
+    } finally {
+      setIsClearingAccountData(false)
+    }
+  }
 
   return (
     <aside className={`sidebar ${collapsed ? 'collapsed' : ''}`}>
@@ -98,14 +400,61 @@ function Sidebar() {
           className={`nav-item ${isActive('/export') ? 'active' : ''}`}
           title={collapsed ? '导出' : undefined}
         >
-          <span className="nav-icon"><Download size={20} /></span>
+          <span className="nav-icon nav-icon-with-badge">
+            <Download size={20} />
+            {collapsed && activeExportTaskCount > 0 && (
+              <span className="nav-badge icon-badge">{exportTaskBadge}</span>
+            )}
+          </span>
           <span className="nav-label">导出</span>
+          {!collapsed && activeExportTaskCount > 0 && (
+            <span className="nav-badge">{exportTaskBadge}</span>
+          )}
         </NavLink>
 
 
       </nav>
 
       <div className="sidebar-footer">
+        <div className="sidebar-user-card-wrap" ref={accountCardWrapRef}>
+          {isAccountMenuOpen && (
+            <button
+              className="sidebar-user-clear-trigger"
+              onClick={openClearAccountDialog}
+              type="button"
+            >
+              <Trash2 size={14} />
+              <span>清除此账号所有数据</span>
+            </button>
+          )}
+          <div
+            className={`sidebar-user-card ${isAccountMenuOpen ? 'menu-open' : ''}`}
+            title={collapsed ? `${userProfile.displayName}${userProfile.wxid ? `\n${userProfile.wxid}` : ''}` : undefined}
+            onClick={() => setIsAccountMenuOpen(prev => !prev)}
+            role="button"
+            tabIndex={0}
+            onKeyDown={(event) => {
+              if (event.key === 'Enter' || event.key === ' ') {
+                event.preventDefault()
+                setIsAccountMenuOpen(prev => !prev)
+              }
+            }}
+          >
+            <div className="user-avatar">
+              {userProfile.avatarUrl ? <img src={userProfile.avatarUrl} alt="" /> : <span>{getAvatarLetter(userProfile.displayName)}</span>}
+            </div>
+            <div className="user-meta">
+              <div className="user-name">{userProfile.displayName}</div>
+              <div className="user-wxid">{userProfile.wxid || 'wxid 未识别'}</div>
+            </div>
+            {!collapsed && (
+              <span className={`user-menu-caret ${isAccountMenuOpen ? 'open' : ''}`}>
+                <ChevronUp size={14} />
+              </span>
+            )}
+          </div>
+        </div>
+
         {authEnabled && (
           <button
             className="nav-item"
@@ -136,6 +485,49 @@ function Sidebar() {
           {collapsed ? <ChevronRight size={18} /> : <ChevronLeft size={18} />}
         </button>
       </div>
+
+      {showClearAccountDialog && (
+        <div className="sidebar-clear-dialog-overlay" onClick={() => !isClearingAccountData && resetClearDialogState()}>
+          <div className="sidebar-clear-dialog" role="dialog" aria-modal="true" onClick={(event) => event.stopPropagation()}>
+            <h3>清除此账号所有数据</h3>
+            <p>
+              操作后可将该账户在 weflow 下产生的所有缓存文件、导出文件等彻底清除。
+              清除后必须手动登录微信客户端 weflow 才能再次获取，保障你的数据安全。
+            </p>
+            <div className="sidebar-clear-options">
+              <label>
+                <input
+                  type="checkbox"
+                  checked={shouldClearCacheData}
+                  onChange={(event) => setShouldClearCacheData(event.target.checked)}
+                  disabled={isClearingAccountData}
+                />
+                缓存数据
+              </label>
+              <label>
+                <input
+                  type="checkbox"
+                  checked={shouldClearExportData}
+                  onChange={(event) => setShouldClearExportData(event.target.checked)}
+                  disabled={isClearingAccountData}
+                />
+                导出数据
+              </label>
+            </div>
+            <div className="sidebar-clear-actions">
+              <button type="button" onClick={resetClearDialogState} disabled={isClearingAccountData}>取消</button>
+              <button
+                type="button"
+                className="danger"
+                disabled={!canConfirmClear || isClearingAccountData}
+                onClick={handleConfirmClearAccountData}
+              >
+                {isClearingAccountData ? '清除中...' : '确认清除'}
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
     </aside>
   )
 }

src/components/Sns/SnsFilterPanel.tsx

@@ -57,6 +57,16 @@ export const SnsFilterPanel: React.FC<SnsFilterPanelProps> = ({
         setJumpTargetDate(undefined)
     }
 
+    const getEmptyStateText = () => {
+        if (loading && contacts.length === 0) {
+            return '正在加载联系人...'
+        }
+        if (contacts.length === 0) {
+            return '暂无好友或曾经的好友'
+        }
+        return '没有找到联系人'
+    }
+
     return (
         <aside className="sns-filter-panel">
             <div className="filter-header">
@@ -143,18 +153,22 @@ export const SnsFilterPanel: React.FC<SnsFilterPanelProps> = ({
                     </div>
 
                     <div className="contact-list-scroll">
-                        {filteredContacts.map(contact => (
+                        {filteredContacts.map(contact => {
+                            return (
                             <div
                                 key={contact.username}
                                 className={`contact-row ${selectedUsernames.includes(contact.username) ? 'selected' : ''}`}
                                 onClick={() => toggleUserSelection(contact.username)}
                             >
                                 <Avatar src={contact.avatarUrl} name={contact.displayName} size={36} shape="rounded" />
-                                <span className="contact-name">{contact.displayName}</span>
+                                <div className="contact-meta">
+                                    <span className="contact-name">{contact.displayName}</span>
+                                </div>
                             </div>
-                        ))}
+                            )
+                        })}
                         {filteredContacts.length === 0 && (
-                            <div className="empty-state">没有找到联系人</div>
+                            <div className="empty-state">{getEmptyStateText()}</div>
                         )}
                     </div>
                 </div>

src/pages/AnnualReportPage.scss

@@ -26,6 +26,48 @@
   margin: 0 0 48px;
 }
 
+.page-desc.load-summary {
+  margin: 0 0 28px;
+}
+
+.page-desc.load-summary.complete {
+  color: var(--text-secondary);
+}
+
+.load-telemetry {
+  width: min(760px, 100%);
+  padding: 12px 14px;
+  margin: 0 0 28px;
+  border-radius: 12px;
+  border: 1px solid color-mix(in srgb, var(--border-color) 80%, transparent);
+  background: color-mix(in srgb, var(--card-bg) 92%, transparent);
+  text-align: left;
+  font-size: 13px;
+  color: var(--text-secondary);
+  line-height: 1.5;
+
+  p {
+    margin: 4px 0;
+  }
+
+  .label {
+    color: var(--text-tertiary);
+  }
+}
+
+.load-telemetry.loading {
+  border-color: color-mix(in srgb, var(--primary) 30%, var(--border-color));
+}
+
+.load-telemetry.complete {
+  border-color: color-mix(in srgb, var(--primary) 40%, var(--border-color));
+}
+
+.load-telemetry.compact {
+  margin: 12px 0 0;
+  width: min(560px, 100%);
+}
+
 .report-sections {
   display: flex;
   flex-direction: column;
@@ -83,6 +125,14 @@
   color: var(--text-tertiary);
 }
 
+.year-grid-with-status {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 16px;
+  margin-bottom: 24px;
+}
+
 .year-grid {
   display: flex;
   flex-wrap: wrap;
@@ -95,7 +145,39 @@
 .report-section .year-grid {
   justify-content: flex-start;
   max-width: none;
-  margin-bottom: 24px;
+  margin-bottom: 0;
+}
+
+.year-grid-with-status .year-grid {
+  flex: 1;
+}
+
+.year-load-status {
+  display: inline-flex;
+  align-items: center;
+  font-size: 12px;
+  color: var(--text-tertiary);
+  white-space: nowrap;
+  margin-top: 6px;
+  flex-shrink: 0;
+}
+
+.year-load-status.complete {
+  color: color-mix(in srgb, var(--primary) 80%, var(--text-secondary));
+}
+
+.dot-ellipsis {
+  display: inline-block;
+  width: 0;
+  overflow: hidden;
+  vertical-align: bottom;
+  animation: dot-ellipsis 1.2s steps(4, end) infinite;
+}
+
+.year-load-status.complete .dot-ellipsis,
+.page-desc.load-summary.complete .dot-ellipsis {
+  animation: none;
+  width: 0;
 }
 
 .year-card {
@@ -185,3 +267,7 @@
   from { transform: rotate(0deg); }
   to { transform: rotate(360deg); }
 }
+
+@keyframes dot-ellipsis {
+  to { width: 1.4em; }
+}

src/pages/AnnualReportPage.tsx

@@ -4,6 +4,28 @@ import { Calendar, Loader2, Sparkles, Users } from 'lucide-react'
 import './AnnualReportPage.scss'
 
 type YearOption = number | 'all'
+type YearsLoadPayload = {
+  years?: number[]
+  done: boolean
+  error?: string
+  canceled?: boolean
+  strategy?: 'cache' | 'native' | 'hybrid'
+  phase?: 'cache' | 'native' | 'scan' | 'done'
+  statusText?: string
+  nativeElapsedMs?: number
+  scanElapsedMs?: number
+  totalElapsedMs?: number
+  switched?: boolean
+  nativeTimedOut?: boolean
+}
+
+const formatLoadElapsed = (ms: number) => {
+  const totalSeconds = Math.max(0, ms) / 1000
+  if (totalSeconds < 60) return `${totalSeconds.toFixed(1)}s`
+  const minutes = Math.floor(totalSeconds / 60)
+  const seconds = Math.floor(totalSeconds % 60)
+  return `${minutes}m ${String(seconds).padStart(2, '0')}s`
+}
 
 function AnnualReportPage() {
   const navigate = useNavigate()
@@ -11,32 +33,117 @@ function AnnualReportPage() {
   const [selectedYear, setSelectedYear] = useState<YearOption | null>(null)
   const [selectedPairYear, setSelectedPairYear] = useState<YearOption | null>(null)
   const [isLoading, setIsLoading] = useState(true)
+  const [isLoadingMoreYears, setIsLoadingMoreYears] = useState(false)
+  const [hasYearsLoadFinished, setHasYearsLoadFinished] = useState(false)
+  const [loadStrategy, setLoadStrategy] = useState<'cache' | 'native' | 'hybrid'>('native')
+  const [loadPhase, setLoadPhase] = useState<'cache' | 'native' | 'scan' | 'done'>('native')
+  const [loadStatusText, setLoadStatusText] = useState('准备加载年份数据...')
+  const [nativeElapsedMs, setNativeElapsedMs] = useState(0)
+  const [scanElapsedMs, setScanElapsedMs] = useState(0)
+  const [totalElapsedMs, setTotalElapsedMs] = useState(0)
+  const [hasSwitchedStrategy, setHasSwitchedStrategy] = useState(false)
+  const [nativeTimedOut, setNativeTimedOut] = useState(false)
   const [isGenerating, setIsGenerating] = useState(false)
   const [loadError, setLoadError] = useState<string | null>(null)
 
   useEffect(() => {
-    loadAvailableYears()
-  }, [])
+    let disposed = false
+    let taskId = ''
 
-  const loadAvailableYears = async () => {
-    setIsLoading(true)
-    setLoadError(null)
-    try {
-      const result = await window.electronAPI.annualReport.getAvailableYears()
-      if (result.success && result.data && result.data.length > 0) {
-        setAvailableYears(result.data)
-        setSelectedYear((prev) => prev ?? result.data[0])
-        setSelectedPairYear((prev) => prev ?? result.data[0])
-      } else if (!result.success) {
-        setLoadError(result.error || '加载年度数据失败')
+    const applyLoadPayload = (payload: YearsLoadPayload) => {
+      if (payload.strategy) setLoadStrategy(payload.strategy)
+      if (payload.phase) setLoadPhase(payload.phase)
+      if (typeof payload.statusText === 'string' && payload.statusText) setLoadStatusText(payload.statusText)
+      if (typeof payload.nativeElapsedMs === 'number' && Number.isFinite(payload.nativeElapsedMs)) {
+        setNativeElapsedMs(Math.max(0, payload.nativeElapsedMs))
+      }
+      if (typeof payload.scanElapsedMs === 'number' && Number.isFinite(payload.scanElapsedMs)) {
+        setScanElapsedMs(Math.max(0, payload.scanElapsedMs))
+      }
+      if (typeof payload.totalElapsedMs === 'number' && Number.isFinite(payload.totalElapsedMs)) {
+        setTotalElapsedMs(Math.max(0, payload.totalElapsedMs))
+      }
+      if (typeof payload.switched === 'boolean') setHasSwitchedStrategy(payload.switched)
+      if (typeof payload.nativeTimedOut === 'boolean') setNativeTimedOut(payload.nativeTimedOut)
+
+      const years = Array.isArray(payload.years) ? payload.years : []
+      if (years.length > 0) {
+        setAvailableYears(years)
+        setSelectedYear((prev) => {
+          if (prev === 'all') return prev
+          if (typeof prev === 'number' && years.includes(prev)) return prev
+          return years[0]
+        })
+        setSelectedPairYear((prev) => {
+          if (prev === 'all') return prev
+          if (typeof prev === 'number' && years.includes(prev)) return prev
+          return years[0]
+        })
+        setIsLoading(false)
+      }
+
+      if (payload.error && !payload.canceled) {
+        setLoadError(payload.error || '加载年度数据失败')
+      }
+
+      if (payload.done) {
+        setIsLoading(false)
+        setIsLoadingMoreYears(false)
+        setHasYearsLoadFinished(true)
+        setLoadPhase('done')
+      } else {
+        setIsLoadingMoreYears(true)
+        setHasYearsLoadFinished(false)
       }
-    } catch (e) {
-      console.error(e)
-      setLoadError(String(e))
-    } finally {
-      setIsLoading(false)
     }
-  }
+
+    const stopListen = window.electronAPI.annualReport.onAvailableYearsProgress((payload) => {
+      if (disposed) return
+      if (taskId && payload.taskId !== taskId) return
+      if (!taskId) taskId = payload.taskId
+      applyLoadPayload(payload)
+    })
+
+    const startLoad = async () => {
+      setIsLoading(true)
+      setIsLoadingMoreYears(true)
+      setHasYearsLoadFinished(false)
+      setLoadStrategy('native')
+      setLoadPhase('native')
+      setLoadStatusText('准备使用原生快速模式加载年份...')
+      setNativeElapsedMs(0)
+      setScanElapsedMs(0)
+      setTotalElapsedMs(0)
+      setHasSwitchedStrategy(false)
+      setNativeTimedOut(false)
+      setLoadError(null)
+      try {
+        const startResult = await window.electronAPI.annualReport.startAvailableYearsLoad()
+        if (!startResult.success || !startResult.taskId) {
+          setLoadError(startResult.error || '加载年度数据失败')
+          setIsLoading(false)
+          setIsLoadingMoreYears(false)
+          return
+        }
+        taskId = startResult.taskId
+        if (startResult.snapshot) {
+          applyLoadPayload(startResult.snapshot)
+        }
+      } catch (e) {
+        console.error(e)
+        setLoadError(String(e))
+        setIsLoading(false)
+        setIsLoadingMoreYears(false)
+      }
+    }
+
+    void startLoad()
+
+    return () => {
+      disposed = true
+      stopListen()
+    }
+  }, [])
 
   const handleGenerateReport = async () => {
     if (selectedYear === null) return
@@ -57,16 +164,25 @@ function AnnualReportPage() {
     navigate(`/dual-report?year=${yearParam}`)
   }
 
-  if (isLoading) {
+  if (isLoading && availableYears.length === 0) {
     return (
       <div className="annual-report-page">
         <Loader2 size={32} className="spin" style={{ color: 'var(--text-tertiary)' }} />
-        <p style={{ color: 'var(--text-tertiary)', marginTop: 16 }}>正在加载年份数据...</p>
+        <p style={{ color: 'var(--text-tertiary)', marginTop: 16 }}>正在加载年份数据（首批）...</p>
+        <div className="load-telemetry compact">
+          <p><span className="label">加载方式：</span>{getStrategyLabel({ loadStrategy, loadPhase, hasYearsLoadFinished, hasSwitchedStrategy, nativeTimedOut })}</p>
+          <p><span className="label">状态：</span>{loadStatusText || '正在加载年份数据...'}</p>
+          <p>
+            <span className="label">原生耗时：</span>{formatLoadElapsed(nativeElapsedMs)}{nativeTimedOut ? '（超时）' : ''} ｜{' '}
+            <span className="label">扫表耗时：</span>{formatLoadElapsed(scanElapsedMs)} ｜{' '}
+            <span className="label">总耗时：</span>{formatLoadElapsed(totalElapsedMs)}
+          </p>
+        </div>
       </div>
     )
   }
 
-  if (availableYears.length === 0) {
+  if (availableYears.length === 0 && !isLoadingMoreYears) {
     return (
       <div className="annual-report-page">
         <Calendar size={64} style={{ color: 'var(--text-tertiary)', opacity: 0.5 }} />
@@ -87,11 +203,50 @@ function AnnualReportPage() {
     return value === 'all' ? '全部时间' : `${value} 年`
   }
 
+  const loadedYearCount = availableYears.length
+  const isYearStatusComplete = hasYearsLoadFinished
+  const strategyLabel = getStrategyLabel({ loadStrategy, loadPhase, hasYearsLoadFinished, hasSwitchedStrategy, nativeTimedOut })
+  const renderYearLoadStatus = () => (
+    <div className={`year-load-status ${isYearStatusComplete ? 'complete' : 'loading'}`}>
+      {isYearStatusComplete ? (
+        <>全部年份已加载完毕</>
+      ) : (
+        <>
+          更多年份加载中<span className="dot-ellipsis" aria-hidden="true">...</span>
+        </>
+      )}
+    </div>
+  )
+
   return (
     <div className="annual-report-page">
       <Sparkles size={32} className="header-icon" />
       <h1 className="page-title">年度报告</h1>
       <p className="page-desc">选择年份，回顾你在微信里的点点滴滴</p>
+      {loadedYearCount > 0 && (
+        <p className={`page-desc load-summary ${isYearStatusComplete ? 'complete' : 'loading'}`}>
+          {isYearStatusComplete ? (
+            <>已显示 {loadedYearCount} 个年份，年份数据已全部加载完毕。总耗时 {formatLoadElapsed(totalElapsedMs)}</>
+          ) : (
+            <>
+              已显示 {loadedYearCount} 个年份，正在补充更多年份<span className="dot-ellipsis" aria-hidden="true">...</span>
+              （已耗时 {formatLoadElapsed(totalElapsedMs)}）
+            </>
+          )}
+        </p>
+      )}
+      <div className={`load-telemetry ${isYearStatusComplete ? 'complete' : 'loading'}`}>
+        <p><span className="label">加载方式：</span>{strategyLabel}</p>
+        <p>
+          <span className="label">状态：</span>
+          {loadStatusText || (isYearStatusComplete ? '全部年份已加载完毕' : '正在加载年份数据...')}
+        </p>
+        <p>
+          <span className="label">原生耗时：</span>{formatLoadElapsed(nativeElapsedMs)}{nativeTimedOut ? '（超时）' : ''} ｜{' '}
+          <span className="label">扫表耗时：</span>{formatLoadElapsed(scanElapsedMs)} ｜{' '}
+          <span className="label">总耗时：</span>{formatLoadElapsed(totalElapsedMs)}
+        </p>
+      </div>
 
       <div className="report-sections">
         <section className="report-section">
@@ -102,17 +257,20 @@ function AnnualReportPage() {
             </div>
           </div>
 
-          <div className="year-grid">
-            {yearOptions.map(option => (
-              <div
-                key={option}
-                className={`year-card ${option === 'all' ? 'all-time' : ''} ${selectedYear === option ? 'selected' : ''}`}
-                onClick={() => setSelectedYear(option)}
-              >
-                <span className="year-number">{option === 'all' ? '全部' : option}</span>
-                <span className="year-label">{option === 'all' ? '时间' : '年'}</span>
-              </div>
-            ))}
+          <div className="year-grid-with-status">
+            <div className="year-grid">
+              {yearOptions.map(option => (
+                <div
+                  key={option}
+                  className={`year-card ${option === 'all' ? 'all-time' : ''} ${selectedYear === option ? 'selected' : ''}`}
+                  onClick={() => setSelectedYear(option)}
+                >
+                  <span className="year-number">{option === 'all' ? '全部' : option}</span>
+                  <span className="year-label">{option === 'all' ? '时间' : '年'}</span>
+                </div>
+              ))}
+            </div>
+            {renderYearLoadStatus()}
           </div>
 
           <button
@@ -146,17 +304,20 @@ function AnnualReportPage() {
             </div>
           </div>
 
-          <div className="year-grid">
-            {yearOptions.map(option => (
-              <div
-                key={`pair-${option}`}
-                className={`year-card ${option === 'all' ? 'all-time' : ''} ${selectedPairYear === option ? 'selected' : ''}`}
-                onClick={() => setSelectedPairYear(option)}
-              >
-                <span className="year-number">{option === 'all' ? '全部' : option}</span>
-                <span className="year-label">{option === 'all' ? '时间' : '年'}</span>
-              </div>
-            ))}
+          <div className="year-grid-with-status">
+            <div className="year-grid">
+              {yearOptions.map(option => (
+                <div
+                  key={`pair-${option}`}
+                  className={`year-card ${option === 'all' ? 'all-time' : ''} ${selectedPairYear === option ? 'selected' : ''}`}
+                  onClick={() => setSelectedPairYear(option)}
+                >
+                  <span className="year-number">{option === 'all' ? '全部' : option}</span>
+                  <span className="year-label">{option === 'all' ? '时间' : '年'}</span>
+                </div>
+              ))}
+            </div>
+            {renderYearLoadStatus()}
           </div>
 
           <button
@@ -174,4 +335,23 @@ function AnnualReportPage() {
   )
 }
 
+function getStrategyLabel(params: {
+  loadStrategy: 'cache' | 'native' | 'hybrid'
+  loadPhase: 'cache' | 'native' | 'scan' | 'done'
+  hasYearsLoadFinished: boolean
+  hasSwitchedStrategy: boolean
+  nativeTimedOut: boolean
+}): string {
+  const { loadStrategy, loadPhase, hasYearsLoadFinished, hasSwitchedStrategy, nativeTimedOut } = params
+  if (loadStrategy === 'cache') return '缓存模式（快速）'
+  if (hasYearsLoadFinished) {
+    if (loadStrategy === 'native') return '原生快速模式'
+    if (hasSwitchedStrategy || nativeTimedOut) return '混合策略（原生→扫表）'
+    return '扫表兼容模式'
+  }
+  if (loadPhase === 'native') return '原生快速模式（优先）'
+  if (loadPhase === 'scan') return '扫表兼容模式（回退）'
+  return '混合策略'
+}
+
 export default AnnualReportPage

src/pages/ChatPage.scss

@@ -490,6 +490,18 @@
           gap: 8px;
           -webkit-app-region: no-drag;
 
+          .jump-calendar-anchor {
+            position: relative;
+            display: flex;
+            align-items: center;
+            isolation: isolate;
+            z-index: 20;
+
+            .jump-date-popover {
+              z-index: 2600;
+            }
+          }
+
           .icon-btn {
             width: 34px;
             height: 34px;
@@ -534,6 +546,22 @@
         overflow: hidden;
       }
 
+      .export-prepare-hint {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        padding: 8px 24px;
+        font-size: 12px;
+        color: var(--text-secondary);
+        border-bottom: 1px solid var(--border-color);
+        background: var(--bg-tertiary);
+        -webkit-app-region: no-drag;
+
+        .spin {
+          animation: spin 1s linear infinite;
+        }
+      }
+
       .message-list {
         flex: 1;
         background: var(--chat-pattern);
@@ -815,6 +843,24 @@
     min-width: 0;
   }
 
+  .session-sync-indicator {
+    display: inline-flex;
+    align-items: center;
+    gap: 4px;
+    padding: 4px 8px;
+    border-radius: 999px;
+    background: var(--bg-primary);
+    color: var(--text-tertiary);
+    font-size: 11px;
+    white-space: nowrap;
+    border: 1px solid var(--border-color);
+    flex-shrink: 0;
+
+    .spin {
+      animation: spin 0.9s linear infinite;
+    }
+  }
+
   .search-box {
     flex: 1;
     display: flex;
@@ -1592,6 +1638,13 @@
     display: flex;
     align-items: center;
     gap: 8px;
+
+    .jump-calendar-anchor {
+      position: relative;
+      display: flex;
+      align-items: center;
+      isolation: isolate;
+    }
   }
 
   .icon-btn {
@@ -1624,6 +1677,10 @@
       opacity: 0.5;
       cursor: not-allowed;
     }
+
+    .spin {
+      animation: spin 1s linear infinite;
+    }
   }
 }
 
@@ -1651,6 +1708,33 @@
     opacity: 0;
     pointer-events: none;
   }
+
+  &.switching .message-list {
+    opacity: 0.42;
+    transform: scale(0.995);
+    filter: saturate(0.72) blur(1px);
+    pointer-events: none;
+  }
+
+  &.switching .loading-overlay {
+    background: rgba(127, 127, 127, 0.18);
+    backdrop-filter: blur(4px);
+  }
+}
+
+.export-prepare-hint {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 20px;
+  font-size: 12px;
+  color: var(--text-secondary);
+  border-bottom: 1px solid var(--border-color);
+  background: var(--bg-tertiary);
+
+  .spin {
+    animation: spin 1s linear infinite;
+  }
 }
 
 .message-list {
@@ -1666,7 +1750,7 @@
   background-color: var(--bg-tertiary);
   position: relative;
   -webkit-app-region: no-drag !important;
-  transition: opacity 240ms ease, transform 240ms ease;
+  transition: opacity 240ms ease, transform 240ms ease, filter 220ms ease;
 
   // 滚动条样式
   &::-webkit-scrollbar {
@@ -2662,6 +2746,13 @@
         opacity: 0.7;
       }
     }
+
+    .detail-stats-meta {
+      margin-top: -6px;
+      margin-bottom: 10px;
+      font-size: 12px;
+      color: var(--text-tertiary);
+    }
   }
 
   .detail-item {
@@ -2699,6 +2790,26 @@
       }
     }
 
+    .detail-inline-btn {
+      border: none;
+      background: var(--bg-secondary);
+      color: var(--primary);
+      border-radius: 6px;
+      padding: 4px 8px;
+      font-size: 12px;
+      line-height: 1;
+      cursor: pointer;
+
+      &:disabled {
+        cursor: not-allowed;
+        opacity: 0.7;
+      }
+
+      &:hover:not(:disabled) {
+        background: var(--bg-hover);
+      }
+    }
+
     .copy-btn {
       display: flex;
       align-items: center;
@@ -2736,6 +2847,14 @@
     gap: 8px;
   }
 
+  .detail-table-placeholder {
+    padding: 10px 12px;
+    background: var(--bg-secondary);
+    border-radius: 8px;
+    font-size: 12px;
+    color: var(--text-secondary);
+  }
+
   .table-item {
     display: flex;
     align-items: center;
@@ -2757,6 +2876,188 @@
   }
 }
 
+.group-members-panel {
+  .group-members-toolbar {
+    padding: 12px 16px 10px;
+    border-bottom: 1px solid var(--border-color);
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+  }
+
+  .group-members-count {
+    font-size: 12px;
+    color: var(--text-secondary);
+  }
+
+  .group-members-search {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    padding: 8px 10px;
+    border: 1px solid var(--border-color);
+    border-radius: 10px;
+    background: var(--bg-secondary);
+
+    svg {
+      color: var(--text-tertiary);
+      flex-shrink: 0;
+    }
+
+    input {
+      flex: 1;
+      border: none;
+      outline: none;
+      background: transparent;
+      color: var(--text-primary);
+      font-size: 13px;
+
+      &::placeholder {
+        color: var(--text-tertiary);
+      }
+    }
+  }
+
+  .group-members-status {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    padding: 6px 16px;
+    font-size: 12px;
+    color: var(--text-secondary);
+    border-bottom: 1px solid var(--border-color);
+    background: var(--bg-secondary);
+
+    .spin {
+      animation: spin 1s linear infinite;
+    }
+
+    &.warning {
+      color: #b45309;
+      background: color-mix(in srgb, #f59e0b 10%, transparent);
+    }
+  }
+
+  .group-members-list {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    padding: 4px 0;
+
+    &::-webkit-scrollbar {
+      width: 4px;
+    }
+
+    &::-webkit-scrollbar-thumb {
+      background: var(--text-tertiary);
+      border-radius: 2px;
+    }
+  }
+
+  .group-member-item {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 8px;
+    padding: 10px 16px;
+    border-bottom: 1px solid var(--border-color);
+
+    &:last-child {
+      border-bottom: none;
+    }
+  }
+
+  .group-member-main {
+    min-width: 0;
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    flex: 1;
+  }
+
+  .group-member-avatar {
+    flex-shrink: 0;
+  }
+
+  .group-member-meta {
+    min-width: 0;
+    display: flex;
+    flex-direction: column;
+    gap: 2px;
+  }
+
+  .group-member-name-row {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    min-width: 0;
+  }
+
+  .group-member-name {
+    font-size: 13px;
+    color: var(--text-primary);
+    max-width: 100%;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  .group-member-id {
+    font-size: 11px;
+    color: var(--text-tertiary);
+    max-width: 100%;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  .group-member-badges {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    flex-shrink: 0;
+  }
+
+  .member-flag {
+    width: 18px;
+    height: 18px;
+    border-radius: 9999px;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    border: 1px solid var(--border-color);
+
+    &.owner {
+      color: #f59e0b;
+      background: color-mix(in srgb, #f59e0b 16%, transparent);
+      border-color: color-mix(in srgb, #f59e0b 35%, var(--border-color));
+    }
+
+    &.friend {
+      color: var(--primary);
+      background: color-mix(in srgb, var(--primary) 14%, transparent);
+      border-color: color-mix(in srgb, var(--primary) 35%, var(--border-color));
+    }
+  }
+
+  .group-member-count {
+    flex-shrink: 0;
+    font-size: 12px;
+    font-weight: 600;
+    color: var(--text-secondary);
+
+    &.loading {
+      color: var(--text-tertiary);
+      font-weight: 500;
+    }
+
+    &.failed {
+      color: #b45309;
+      font-weight: 600;
+    }
+  }
+}
+
 @keyframes slideInRight {
   from {
     opacity: 0;
@@ -4133,7 +4434,6 @@
     font-weight: 500;
   }
 }
-
 // 消息信息弹窗
 .message-info-overlay {
   position: fixed;
@@ -4298,4 +4598,4 @@
       user-select: text;
     }
   }
-}
+}

src/pages/ContactsPage.scss

@@ -148,6 +148,17 @@
       svg {
         opacity: 0.7;
         transition: transform 0.2s;
+        flex-shrink: 0;
+      }
+
+      .chip-label {
+        min-width: 0;
+      }
+
+      .chip-count {
+        margin-left: auto;
+        text-align: right;
+        font-variant-numeric: tabular-nums;
       }
 
       &:hover {
@@ -177,6 +188,22 @@
     padding: 0 20px 12px;
     font-size: 13px;
     color: var(--text-secondary);
+
+    .contacts-cache-meta {
+      margin-left: 10px;
+      color: var(--text-tertiary);
+      font-size: 12px;
+
+      &.syncing {
+        color: var(--primary);
+      }
+    }
+
+    .avatar-enrich-progress {
+      margin-left: 10px;
+      color: var(--text-tertiary);
+      font-size: 12px;
+    }
   }
 
   .selection-toolbar {
@@ -213,10 +240,103 @@
     }
   }
 
+  .load-issue-state {
+    flex: 1;
+    padding: 14px 14px 18px;
+    overflow-y: auto;
+  }
+
+  .issue-card {
+    border: 1px solid color-mix(in srgb, var(--danger, #ef4444) 45%, var(--border-color));
+    background: color-mix(in srgb, var(--danger, #ef4444) 8%, var(--card-bg));
+    border-radius: 12px;
+    padding: 14px;
+    color: var(--text-primary);
+
+    .issue-title {
+      display: flex;
+      align-items: center;
+      gap: 8px;
+      font-size: 14px;
+      font-weight: 600;
+      color: color-mix(in srgb, var(--danger, #ef4444) 85%, var(--text-primary));
+      margin-bottom: 8px;
+    }
+
+    .issue-message {
+      margin: 0 0 8px;
+      font-size: 13px;
+      color: var(--text-secondary);
+      line-height: 1.5;
+    }
+
+    .issue-reason {
+      margin: 0;
+      font-size: 13px;
+      color: var(--text-secondary);
+      line-height: 1.5;
+    }
+
+    .issue-hints {
+      margin: 10px 0 0;
+      padding-left: 18px;
+      font-size: 12px;
+      color: var(--text-tertiary);
+      line-height: 1.6;
+    }
+
+    .issue-actions {
+      margin-top: 12px;
+      display: flex;
+      flex-wrap: wrap;
+      gap: 8px;
+    }
+
+    .issue-btn {
+      border: 1px solid var(--border-color);
+      background: var(--bg-secondary);
+      border-radius: 8px;
+      padding: 7px 10px;
+      font-size: 12px;
+      color: var(--text-secondary);
+      display: inline-flex;
+      align-items: center;
+      gap: 6px;
+      cursor: pointer;
+      transition: all 0.2s ease;
+
+      &:hover {
+        color: var(--text-primary);
+        border-color: var(--text-tertiary);
+        background: var(--bg-hover);
+      }
+
+      &.primary {
+        background: color-mix(in srgb, var(--primary) 14%, var(--bg-secondary));
+        border-color: color-mix(in srgb, var(--primary) 42%, var(--border-color));
+        color: var(--primary);
+      }
+    }
+
+    .issue-diagnostics {
+      margin-top: 12px;
+      border-radius: 8px;
+      background: var(--bg-primary);
+      border: 1px dashed var(--border-color);
+      padding: 10px;
+      font-size: 12px;
+      line-height: 1.5;
+      color: var(--text-secondary);
+      white-space: pre-wrap;
+      word-break: break-word;
+    }
+  }
+
   .contacts-list {
     flex: 1;
     overflow-y: auto;
     padding: 0 12px 12px;
+    position: relative;
 
     &::-webkit-scrollbar {
       width: 6px;
@@ -229,15 +349,31 @@
     }
   }
 
+  .contacts-list-virtual {
+    position: relative;
+    min-height: 100%;
+  }
+
+  .contact-row {
+    position: absolute;
+    left: 0;
+    right: 0;
+    height: 76px;
+    padding-bottom: 4px;
+    will-change: transform;
+  }
+
   .contact-item {
     display: flex;
     align-items: center;
     gap: 12px;
     padding: 12px;
+    height: 72px;
+    box-sizing: border-box;
     border-radius: 10px;
     transition: all 0.2s;
     cursor: pointer;
-    margin-bottom: 4px;
+    margin-bottom: 0;
 
     &:hover {
       background: var(--bg-hover);

src/pages/ContactsPage.tsx

@@ -1,7 +1,9 @@
-import { useState, useEffect, useCallback, useRef } from 'react'
+import { useState, useEffect, useCallback, useMemo, useRef, type UIEvent } from 'react'
 import { useNavigate } from 'react-router-dom'
-import { Search, RefreshCw, X, User, Users, MessageSquare, Loader2, FolderOpen, Download, ChevronDown, MessageCircle, UserX } from 'lucide-react'
+import { Search, RefreshCw, X, User, Users, MessageSquare, Loader2, FolderOpen, Download, ChevronDown, MessageCircle, UserX, AlertTriangle, ClipboardList } from 'lucide-react'
 import { useChatStore } from '../stores/chatStore'
+import { toContactTypeCardCounts, useContactTypeCountsStore } from '../stores/contactTypeCountsStore'
+import * as configService from '../services/config'
 import './ContactsPage.scss'
 
 interface ContactInfo {
@@ -13,12 +15,43 @@ interface ContactInfo {
     type: 'friend' | 'group' | 'official' | 'former_friend' | 'other'
 }
 
+interface ContactEnrichInfo {
+    displayName?: string
+    avatarUrl?: string
+}
+
+const AVATAR_ENRICH_BATCH_SIZE = 80
+const SEARCH_DEBOUNCE_MS = 120
+const VIRTUAL_ROW_HEIGHT = 76
+const VIRTUAL_OVERSCAN = 10
+const DEFAULT_CONTACTS_LOAD_TIMEOUT_MS = 3000
+const AVATAR_RECHECK_INTERVAL_MS = 24 * 60 * 60 * 1000
+
+interface ContactsLoadSession {
+    requestId: string
+    startedAt: number
+    attempt: number
+    timeoutMs: number
+}
+
+interface ContactsLoadIssue {
+    kind: 'timeout' | 'error'
+    title: string
+    message: string
+    reason: string
+    errorDetail?: string
+    occurredAt: number
+    elapsedMs: number
+}
+
+type ContactsDataSource = 'cache' | 'network' | null
+
 function ContactsPage() {
     const [contacts, setContacts] = useState<ContactInfo[]>([])
-    const [filteredContacts, setFilteredContacts] = useState<ContactInfo[]>([])
     const [selectedUsernames, setSelectedUsernames] = useState<Set<string>>(new Set())
     const [isLoading, setIsLoading] = useState(true)
     const [searchKeyword, setSearchKeyword] = useState('')
+    const [debouncedSearchKeyword, setDebouncedSearchKeyword] = useState('')
     const [contactTypes, setContactTypes] = useState({
         friends: true,
         groups: false,
@@ -39,79 +72,495 @@ function ContactsPage() {
     const [isExporting, setIsExporting] = useState(false)
     const [showFormatSelect, setShowFormatSelect] = useState(false)
     const formatDropdownRef = useRef<HTMLDivElement>(null)
+    const listRef = useRef<HTMLDivElement>(null)
+    const loadVersionRef = useRef(0)
+    const [avatarEnrichProgress, setAvatarEnrichProgress] = useState({
+        loaded: 0,
+        total: 0,
+        running: false
+    })
+    const [scrollTop, setScrollTop] = useState(0)
+    const [listViewportHeight, setListViewportHeight] = useState(480)
+    const sharedTabCounts = useContactTypeCountsStore(state => state.tabCounts)
+    const syncContactTypeCounts = useContactTypeCountsStore(state => state.syncFromContacts)
+    const loadAttemptRef = useRef(0)
+    const loadTimeoutTimerRef = useRef<number | null>(null)
+    const [contactsLoadTimeoutMs, setContactsLoadTimeoutMs] = useState(DEFAULT_CONTACTS_LOAD_TIMEOUT_MS)
+    const [loadSession, setLoadSession] = useState<ContactsLoadSession | null>(null)
+    const [loadIssue, setLoadIssue] = useState<ContactsLoadIssue | null>(null)
+    const [showDiagnostics, setShowDiagnostics] = useState(false)
+    const [diagnosticTick, setDiagnosticTick] = useState(Date.now())
+    const [contactsDataSource, setContactsDataSource] = useState<ContactsDataSource>(null)
+    const [contactsUpdatedAt, setContactsUpdatedAt] = useState<number | null>(null)
+    const [avatarCacheUpdatedAt, setAvatarCacheUpdatedAt] = useState<number | null>(null)
+    const contactsLoadTimeoutMsRef = useRef(DEFAULT_CONTACTS_LOAD_TIMEOUT_MS)
+    const contactsCacheScopeRef = useRef('default')
+    const contactsAvatarCacheRef = useRef<Record<string, configService.ContactsAvatarCacheEntry>>({})
 
-    // 加载通讯录
-    const loadContacts = useCallback(async () => {
-        setIsLoading(true)
-        try {
-            const result = await window.electronAPI.chat.connect()
-            if (!result.success) {
-                console.error('连接失败:', result.error)
-                setIsLoading(false)
-                return
-            }
-            const contactsResult = await window.electronAPI.chat.getContacts()
-            
-            if (contactsResult.success && contactsResult.contacts) {
-                
-                
+    const ensureContactsCacheScope = useCallback(async () => {
+        if (contactsCacheScopeRef.current !== 'default') {
+            return contactsCacheScopeRef.current
+        }
+        const [dbPath, myWxid] = await Promise.all([
+            configService.getDbPath(),
+            configService.getMyWxid()
+        ])
+        const scopeKey = dbPath || myWxid
+            ? `${dbPath || ''}::${myWxid || ''}`
+            : 'default'
+        contactsCacheScopeRef.current = scopeKey
+        return scopeKey
+    }, [])
 
-                // 获取头像URL
-                const usernames = contactsResult.contacts.map((c: ContactInfo) => c.username)
-                if (usernames.length > 0) {
-                    const avatarResult = await window.electronAPI.chat.enrichSessionsContactInfo(usernames)
-                    if (avatarResult.success && avatarResult.contacts) {
-                        contactsResult.contacts.forEach((contact: ContactInfo) => {
-                            const enriched = avatarResult.contacts?.[contact.username]
-                            if (enriched?.avatarUrl) {
-                                contact.avatarUrl = enriched.avatarUrl
-                            }
-                        })
-                    }
+    useEffect(() => {
+        let cancelled = false
+        void (async () => {
+            try {
+                const value = await configService.getContactsLoadTimeoutMs()
+                if (!cancelled) {
+                    setContactsLoadTimeoutMs(value)
                 }
-
-                setContacts(contactsResult.contacts)
-                setFilteredContacts(contactsResult.contacts)
-                setSelectedUsernames(new Set())
+            } catch (error) {
+                console.error('读取通讯录超时配置失败:', error)
             }
-        } catch (e) {
-            console.error('加载通讯录失败:', e)
-        } finally {
-            setIsLoading(false)
+        })()
+        return () => {
+            cancelled = true
         }
     }, [])
 
     useEffect(() => {
-        loadContacts()
-    }, [loadContacts])
+        contactsLoadTimeoutMsRef.current = contactsLoadTimeoutMs
+    }, [contactsLoadTimeoutMs])
+
+    const mergeAvatarCacheIntoContacts = useCallback((sourceContacts: ContactInfo[]): ContactInfo[] => {
+        const avatarCache = contactsAvatarCacheRef.current
+        if (!sourceContacts.length || Object.keys(avatarCache).length === 0) {
+            return sourceContacts
+        }
+        let changed = false
+        const merged = sourceContacts.map((contact) => {
+            const cachedAvatar = avatarCache[contact.username]?.avatarUrl
+            if (!cachedAvatar || contact.avatarUrl) {
+                return contact
+            }
+            changed = true
+            return {
+                ...contact,
+                avatarUrl: cachedAvatar
+            }
+        })
+        return changed ? merged : sourceContacts
+    }, [])
+
+    const upsertAvatarCacheFromContacts = useCallback((
+        scopeKey: string,
+        sourceContacts: ContactInfo[],
+        options?: { prune?: boolean; markCheckedUsernames?: string[] }
+    ) => {
+        if (!scopeKey) return
+        const nextCache = { ...contactsAvatarCacheRef.current }
+        const now = Date.now()
+        const markCheckedSet = new Set((options?.markCheckedUsernames || []).filter(Boolean))
+        const usernamesInSource = new Set<string>()
+        let changed = false
+
+        for (const contact of sourceContacts) {
+            const username = String(contact.username || '').trim()
+            if (!username) continue
+            usernamesInSource.add(username)
+            const prev = nextCache[username]
+            const avatarUrl = String(contact.avatarUrl || '').trim()
+            if (!avatarUrl) continue
+            const updatedAt = !prev || prev.avatarUrl !== avatarUrl ? now : prev.updatedAt
+            const checkedAt = markCheckedSet.has(username) ? now : (prev?.checkedAt || now)
+            if (!prev || prev.avatarUrl !== avatarUrl || prev.updatedAt !== updatedAt || prev.checkedAt !== checkedAt) {
+                nextCache[username] = {
+                    avatarUrl,
+                    updatedAt,
+                    checkedAt
+                }
+                changed = true
+            }
+        }
+
+        for (const username of markCheckedSet) {
+            const prev = nextCache[username]
+            if (!prev) continue
+            if (prev.checkedAt !== now) {
+                nextCache[username] = {
+                    ...prev,
+                    checkedAt: now
+                }
+                changed = true
+            }
+        }
+
+        if (options?.prune) {
+            for (const username of Object.keys(nextCache)) {
+                if (usernamesInSource.has(username)) continue
+                delete nextCache[username]
+                changed = true
+            }
+        }
+
+        if (!changed) return
+        contactsAvatarCacheRef.current = nextCache
+        setAvatarCacheUpdatedAt(now)
+        void configService.setContactsAvatarCache(scopeKey, nextCache).catch((error) => {
+            console.error('写入通讯录头像缓存失败:', error)
+        })
+    }, [])
+
+    const applyEnrichedContacts = useCallback((enrichedMap: Record<string, ContactEnrichInfo>) => {
+        if (!enrichedMap || Object.keys(enrichedMap).length === 0) return
+
+        setContacts(prev => {
+            let changed = false
+            const next = prev.map(contact => {
+                const enriched = enrichedMap[contact.username]
+                if (!enriched) return contact
+                const displayName = enriched.displayName || contact.displayName
+                const avatarUrl = enriched.avatarUrl || contact.avatarUrl
+                if (displayName === contact.displayName && avatarUrl === contact.avatarUrl) {
+                    return contact
+                }
+                changed = true
+                return {
+                    ...contact,
+                    displayName,
+                    avatarUrl
+                }
+            })
+            return changed ? next : prev
+        })
+
+        setSelectedContact(prev => {
+            if (!prev) return prev
+            const enriched = enrichedMap[prev.username]
+            if (!enriched) return prev
+            const displayName = enriched.displayName || prev.displayName
+            const avatarUrl = enriched.avatarUrl || prev.avatarUrl
+            if (displayName === prev.displayName && avatarUrl === prev.avatarUrl) {
+                return prev
+            }
+            return {
+                ...prev,
+                displayName,
+                avatarUrl
+            }
+        })
+    }, [])
+
+    const enrichContactsInBackground = useCallback(async (
+        sourceContacts: ContactInfo[],
+        loadVersion: number,
+        scopeKey: string
+    ) => {
+        const sourceByUsername = new Map<string, ContactInfo>()
+        for (const contact of sourceContacts) {
+            if (!contact.username) continue
+            sourceByUsername.set(contact.username, contact)
+        }
+        const now = Date.now()
+        const usernames = sourceContacts
+            .map(contact => contact.username)
+            .filter(Boolean)
+            .filter((username) => {
+                const currentContact = sourceByUsername.get(username)
+                if (!currentContact) return false
+                const cacheEntry = contactsAvatarCacheRef.current[username]
+                if (!cacheEntry || !cacheEntry.avatarUrl) {
+                    return !currentContact.avatarUrl
+                }
+                if (currentContact.avatarUrl && currentContact.avatarUrl !== cacheEntry.avatarUrl) {
+                    return true
+                }
+                const checkedAt = cacheEntry.checkedAt || 0
+                return now - checkedAt >= AVATAR_RECHECK_INTERVAL_MS
+            })
+
+        const total = usernames.length
+        setAvatarEnrichProgress({
+            loaded: 0,
+            total,
+            running: total > 0
+        })
+        if (total === 0) return
+
+        for (let i = 0; i < total; i += AVATAR_ENRICH_BATCH_SIZE) {
+            if (loadVersionRef.current !== loadVersion) return
+            const batch = usernames.slice(i, i + AVATAR_ENRICH_BATCH_SIZE)
+            if (batch.length === 0) continue
+
+            try {
+                const avatarResult = await window.electronAPI.chat.enrichSessionsContactInfo(batch)
+                if (loadVersionRef.current !== loadVersion) return
+                if (avatarResult.success && avatarResult.contacts) {
+                    applyEnrichedContacts(avatarResult.contacts)
+                    for (const [username, enriched] of Object.entries(avatarResult.contacts)) {
+                        const prev = sourceByUsername.get(username)
+                        if (!prev) continue
+                        sourceByUsername.set(username, {
+                            ...prev,
+                            displayName: enriched.displayName || prev.displayName,
+                            avatarUrl: enriched.avatarUrl || prev.avatarUrl
+                        })
+                    }
+                }
+                const batchContacts = batch
+                    .map(username => sourceByUsername.get(username))
+                    .filter((contact): contact is ContactInfo => Boolean(contact))
+                upsertAvatarCacheFromContacts(scopeKey, batchContacts, {
+                    markCheckedUsernames: batch
+                })
+            } catch (e) {
+                console.error('分批补全头像失败:', e)
+            }
+
+            const loaded = Math.min(i + batch.length, total)
+            setAvatarEnrichProgress({
+                loaded,
+                total,
+                running: loaded < total
+            })
+
+            await new Promise(resolve => setTimeout(resolve, 0))
+        }
+    }, [applyEnrichedContacts, upsertAvatarCacheFromContacts])
+
+    // 加载通讯录
+    const loadContacts = useCallback(async (options?: { scopeKey?: string }) => {
+        const scopeKey = options?.scopeKey || await ensureContactsCacheScope()
+        const loadVersion = loadVersionRef.current + 1
+        loadVersionRef.current = loadVersion
+        loadAttemptRef.current += 1
+        const startedAt = Date.now()
+        const timeoutMs = contactsLoadTimeoutMsRef.current
+        const requestId = `contacts-${startedAt}-${loadAttemptRef.current}`
+        setLoadSession({
+            requestId,
+            startedAt,
+            attempt: loadAttemptRef.current,
+            timeoutMs
+        })
+        setLoadIssue(null)
+        setShowDiagnostics(false)
+        if (loadTimeoutTimerRef.current) {
+            window.clearTimeout(loadTimeoutTimerRef.current)
+            loadTimeoutTimerRef.current = null
+        }
+        const timeoutTimerId = window.setTimeout(() => {
+            if (loadVersionRef.current !== loadVersion) return
+            const elapsedMs = Date.now() - startedAt
+            setLoadIssue({
+                kind: 'timeout',
+                title: '通讯录加载超时',
+                message: `等待超过 ${timeoutMs}ms，联系人列表仍未返回。`,
+                reason: 'chat.getContacts 长时间未返回，可能是数据库查询繁忙或连接异常。',
+                occurredAt: Date.now(),
+                elapsedMs
+            })
+        }, timeoutMs)
+        loadTimeoutTimerRef.current = timeoutTimerId
+
+        setIsLoading(true)
+        setAvatarEnrichProgress({
+            loaded: 0,
+            total: 0,
+            running: false
+        })
+        try {
+            const contactsResult = await window.electronAPI.chat.getContacts()
+
+            if (loadVersionRef.current !== loadVersion) return
+            if (contactsResult.success && contactsResult.contacts) {
+                if (loadTimeoutTimerRef.current === timeoutTimerId) {
+                    window.clearTimeout(loadTimeoutTimerRef.current)
+                    loadTimeoutTimerRef.current = null
+                }
+                const contactsWithAvatarCache = mergeAvatarCacheIntoContacts(contactsResult.contacts)
+                setContacts(contactsWithAvatarCache)
+                syncContactTypeCounts(contactsWithAvatarCache)
+                setSelectedUsernames(new Set())
+                setSelectedContact(prev => {
+                    if (!prev) return prev
+                    return contactsWithAvatarCache.find(contact => contact.username === prev.username) || null
+                })
+                const now = Date.now()
+                setContactsDataSource('network')
+                setContactsUpdatedAt(now)
+                setLoadIssue(null)
+                setIsLoading(false)
+                upsertAvatarCacheFromContacts(scopeKey, contactsWithAvatarCache, { prune: true })
+                void configService.setContactsListCache(
+                    scopeKey,
+                    contactsWithAvatarCache.map(contact => ({
+                        username: contact.username,
+                        displayName: contact.displayName,
+                        remark: contact.remark,
+                        nickname: contact.nickname,
+                        type: contact.type
+                    }))
+                ).catch((error) => {
+                    console.error('写入通讯录缓存失败:', error)
+                })
+                void enrichContactsInBackground(contactsWithAvatarCache, loadVersion, scopeKey)
+                return
+            }
+            const elapsedMs = Date.now() - startedAt
+            setLoadIssue({
+                kind: 'error',
+                title: '通讯录加载失败',
+                message: '联系人接口返回失败，未拿到联系人列表。',
+                reason: 'chat.getContacts 返回 success=false。',
+                errorDetail: contactsResult.error || '未知错误',
+                occurredAt: Date.now(),
+                elapsedMs
+            })
+        } catch (e) {
+            console.error('加载通讯录失败:', e)
+            const elapsedMs = Date.now() - startedAt
+            setLoadIssue({
+                kind: 'error',
+                title: '通讯录加载失败',
+                message: '联系人请求执行异常。',
+                reason: '调用 chat.getContacts 发生异常。',
+                errorDetail: String(e),
+                occurredAt: Date.now(),
+                elapsedMs
+            })
+        } finally {
+            if (loadTimeoutTimerRef.current === timeoutTimerId) {
+                window.clearTimeout(loadTimeoutTimerRef.current)
+                loadTimeoutTimerRef.current = null
+            }
+            if (loadVersionRef.current === loadVersion) {
+                setIsLoading(false)
+            }
+        }
+    }, [
+        ensureContactsCacheScope,
+        enrichContactsInBackground,
+        mergeAvatarCacheIntoContacts,
+        syncContactTypeCounts,
+        upsertAvatarCacheFromContacts
+    ])
 
-    // 搜索和类型过滤
     useEffect(() => {
-        let filtered = contacts
+        let cancelled = false
+        void (async () => {
+            const scopeKey = await ensureContactsCacheScope()
+            if (cancelled) return
+            try {
+                const [cacheItem, avatarCacheItem] = await Promise.all([
+                    configService.getContactsListCache(scopeKey),
+                    configService.getContactsAvatarCache(scopeKey)
+                ])
+                const avatarCacheMap = avatarCacheItem?.avatars || {}
+                contactsAvatarCacheRef.current = avatarCacheMap
+                setAvatarCacheUpdatedAt(avatarCacheItem?.updatedAt || null)
+                if (!cancelled && cacheItem && Array.isArray(cacheItem.contacts) && cacheItem.contacts.length > 0) {
+                    const cachedContacts: ContactInfo[] = cacheItem.contacts.map(contact => ({
+                        ...contact,
+                        avatarUrl: avatarCacheMap[contact.username]?.avatarUrl
+                    }))
+                    setContacts(cachedContacts)
+                    syncContactTypeCounts(cachedContacts)
+                    setContactsDataSource('cache')
+                    setContactsUpdatedAt(cacheItem.updatedAt || null)
+                    setIsLoading(false)
+                }
+            } catch (error) {
+                console.error('读取通讯录缓存失败:', error)
+            }
+            if (!cancelled) {
+                void loadContacts({ scopeKey })
+            }
+        })()
+        return () => {
+            cancelled = true
+        }
+    }, [ensureContactsCacheScope, loadContacts, syncContactTypeCounts])
 
-        // 类型过滤
-        filtered = filtered.filter(c => {
-            if (c.type === 'friend' && !contactTypes.friends) return false
-            if (c.type === 'group' && !contactTypes.groups) return false
-            if (c.type === 'official' && !contactTypes.officials) return false
-            if (c.type === 'former_friend' && !contactTypes.deletedFriends) return false
+    useEffect(() => {
+        return () => {
+            if (loadTimeoutTimerRef.current) {
+                window.clearTimeout(loadTimeoutTimerRef.current)
+                loadTimeoutTimerRef.current = null
+            }
+            loadVersionRef.current += 1
+        }
+    }, [])
+
+    useEffect(() => {
+        if (!loadIssue || contacts.length > 0) return
+        if (!(isLoading && loadIssue.kind === 'timeout')) return
+        const timer = window.setInterval(() => {
+            setDiagnosticTick(Date.now())
+        }, 500)
+        return () => window.clearInterval(timer)
+    }, [contacts.length, isLoading, loadIssue])
+
+    useEffect(() => {
+        const timer = window.setTimeout(() => {
+            setDebouncedSearchKeyword(searchKeyword.trim().toLowerCase())
+        }, SEARCH_DEBOUNCE_MS)
+        return () => window.clearTimeout(timer)
+    }, [searchKeyword])
+
+    const filteredContacts = useMemo(() => {
+        let filtered = contacts.filter(contact => {
+            if (contact.type === 'friend' && !contactTypes.friends) return false
+            if (contact.type === 'group' && !contactTypes.groups) return false
+            if (contact.type === 'official' && !contactTypes.officials) return false
+            if (contact.type === 'former_friend' && !contactTypes.deletedFriends) return false
             return true
         })
 
-        // 关键词过滤
-        if (searchKeyword.trim()) {
-            const lower = searchKeyword.toLowerCase()
-            filtered = filtered.filter(c =>
-                c.displayName?.toLowerCase().includes(lower) ||
-                c.remark?.toLowerCase().includes(lower) ||
-                c.username.toLowerCase().includes(lower)
+        if (debouncedSearchKeyword) {
+            filtered = filtered.filter(contact =>
+                contact.displayName?.toLowerCase().includes(debouncedSearchKeyword) ||
+                contact.remark?.toLowerCase().includes(debouncedSearchKeyword) ||
+                contact.username.toLowerCase().includes(debouncedSearchKeyword)
             )
         }
 
-        setFilteredContacts(filtered)
-    }, [searchKeyword, contacts, contactTypes])
+        return filtered
+    }, [contacts, contactTypes, debouncedSearchKeyword])
 
-    // 点击外部关闭下拉菜单
+    const contactTypeCounts = useMemo(() => toContactTypeCardCounts(sharedTabCounts), [sharedTabCounts])
+
+    useEffect(() => {
+        if (!listRef.current) return
+        listRef.current.scrollTop = 0
+        setScrollTop(0)
+    }, [debouncedSearchKeyword, contactTypes])
+
+    useEffect(() => {
+        const node = listRef.current
+        if (!node) return
+
+        const updateViewportHeight = () => {
+            setListViewportHeight(Math.max(node.clientHeight, VIRTUAL_ROW_HEIGHT))
+        }
+        updateViewportHeight()
+
+        const observer = new ResizeObserver(() => updateViewportHeight())
+        observer.observe(node)
+        return () => observer.disconnect()
+    }, [filteredContacts.length, isLoading])
+
+    useEffect(() => {
+        const maxScroll = Math.max(0, filteredContacts.length * VIRTUAL_ROW_HEIGHT - listViewportHeight)
+        if (scrollTop <= maxScroll) return
+        setScrollTop(maxScroll)
+        if (listRef.current) {
+            listRef.current.scrollTop = maxScroll
+        }
+    }, [filteredContacts.length, listViewportHeight, scrollTop])
+
+    // 搜索和类型过滤
     useEffect(() => {
         const handleClickOutside = (event: MouseEvent) => {
             const target = event.target as Node
@@ -123,11 +572,85 @@ function ContactsPage() {
         return () => document.removeEventListener('mousedown', handleClickOutside)
     }, [showFormatSelect])
 
-    const selectedInFilteredCount = filteredContacts.reduce((count, contact) => {
-        return selectedUsernames.has(contact.username) ? count + 1 : count
-    }, 0)
+    const selectedInFilteredCount = useMemo(() => {
+        return filteredContacts.reduce((count, contact) => {
+            return selectedUsernames.has(contact.username) ? count + 1 : count
+        }, 0)
+    }, [filteredContacts, selectedUsernames])
     const allFilteredSelected = filteredContacts.length > 0 && selectedInFilteredCount === filteredContacts.length
 
+    const { startIndex, endIndex } = useMemo(() => {
+        if (filteredContacts.length === 0) {
+            return { startIndex: 0, endIndex: 0 }
+        }
+        const baseStart = Math.floor(scrollTop / VIRTUAL_ROW_HEIGHT)
+        const visibleCount = Math.ceil(listViewportHeight / VIRTUAL_ROW_HEIGHT)
+        const nextStart = Math.max(0, baseStart - VIRTUAL_OVERSCAN)
+        const nextEnd = Math.min(filteredContacts.length, nextStart + visibleCount + VIRTUAL_OVERSCAN * 2)
+        return {
+            startIndex: nextStart,
+            endIndex: nextEnd
+        }
+    }, [filteredContacts.length, listViewportHeight, scrollTop])
+
+    const visibleContacts = useMemo(() => {
+        return filteredContacts.slice(startIndex, endIndex)
+    }, [filteredContacts, startIndex, endIndex])
+
+    const onContactsListScroll = useCallback((event: UIEvent<HTMLDivElement>) => {
+        setScrollTop(event.currentTarget.scrollTop)
+    }, [])
+
+    const issueElapsedMs = useMemo(() => {
+        if (!loadIssue) return 0
+        if (isLoading && loadSession) {
+            return Math.max(loadIssue.elapsedMs, diagnosticTick - loadSession.startedAt)
+        }
+        return loadIssue.elapsedMs
+    }, [diagnosticTick, isLoading, loadIssue, loadSession])
+
+    const diagnosticsText = useMemo(() => {
+        if (!loadIssue || !loadSession) return ''
+        return [
+            `请求ID: ${loadSession.requestId}`,
+            `请求序号: 第 ${loadSession.attempt} 次`,
+            `阈值配置: ${loadSession.timeoutMs}ms`,
+            `当前状态: ${loadIssue.kind === 'timeout' ? '超时等待中' : '请求失败'}`,
+            `累计耗时: ${(issueElapsedMs / 1000).toFixed(1)}s`,
+            `发生时间: ${new Date(loadIssue.occurredAt).toLocaleString()}`,
+            `阶段: chat.getContacts`,
+            `原因: ${loadIssue.reason}`,
+            `错误详情: ${loadIssue.errorDetail || '无'}`
+        ].join('\n')
+    }, [issueElapsedMs, loadIssue, loadSession])
+
+    const copyDiagnostics = useCallback(async () => {
+        if (!diagnosticsText) return
+        try {
+            await navigator.clipboard.writeText(diagnosticsText)
+            alert('诊断信息已复制')
+        } catch (error) {
+            console.error('复制诊断信息失败:', error)
+            alert('复制失败，请手动复制诊断信息')
+        }
+    }, [diagnosticsText])
+
+    const contactsUpdatedAtLabel = useMemo(() => {
+        if (!contactsUpdatedAt) return ''
+        return new Date(contactsUpdatedAt).toLocaleString()
+    }, [contactsUpdatedAt])
+
+    const avatarCachedCount = useMemo(() => {
+        return contacts.reduce((count, contact) => (
+            contact.avatarUrl ? count + 1 : count
+        ), 0)
+    }, [contacts])
+
+    const avatarCacheUpdatedAtLabel = useMemo(() => {
+        if (!avatarCacheUpdatedAt) return ''
+        return new Date(avatarCacheUpdatedAt).toLocaleString()
+    }, [avatarCacheUpdatedAt])
+
     const toggleContactSelected = (username: string, checked: boolean) => {
         setSelectedUsernames(prev => {
             const next = new Set(prev)
@@ -256,7 +779,7 @@ function ContactsPage() {
                         >
                             <Download size={18} />
                         </button>
-                        <button className="icon-btn" onClick={loadContacts} disabled={isLoading}>
+                        <button className="icon-btn" onClick={() => void loadContacts()} disabled={isLoading}>
                             <RefreshCw size={18} className={isLoading ? 'spin' : ''} />
                         </button>
                     </div>
@@ -280,24 +803,51 @@ function ContactsPage() {
                 <div className="type-filters">
                     <label className={`filter-chip ${contactTypes.friends ? 'active' : ''}`}>
                         <input type="checkbox" checked={contactTypes.friends} onChange={e => setContactTypes({ ...contactTypes, friends: e.target.checked })} />
-                        <User size={16} /><span>好友</span>
+                        <User size={16} />
+                        <span className="chip-label">好友</span>
+                        <span className="chip-count">{contactTypeCounts.friends}</span>
                     </label>
                     <label className={`filter-chip ${contactTypes.groups ? 'active' : ''}`}>
                         <input type="checkbox" checked={contactTypes.groups} onChange={e => setContactTypes({ ...contactTypes, groups: e.target.checked })} />
-                        <Users size={16} /><span>群聊</span>
+                        <Users size={16} />
+                        <span className="chip-label">群聊</span>
+                        <span className="chip-count">{contactTypeCounts.groups}</span>
                     </label>
                     <label className={`filter-chip ${contactTypes.officials ? 'active' : ''}`}>
                         <input type="checkbox" checked={contactTypes.officials} onChange={e => setContactTypes({ ...contactTypes, officials: e.target.checked })} />
-                        <MessageSquare size={16} /><span>公众号</span>
+                        <MessageSquare size={16} />
+                        <span className="chip-label">公众号</span>
+                        <span className="chip-count">{contactTypeCounts.officials}</span>
                     </label>
                     <label className={`filter-chip ${contactTypes.deletedFriends ? 'active' : ''}`}>
                         <input type="checkbox" checked={contactTypes.deletedFriends} onChange={e => setContactTypes({ ...contactTypes, deletedFriends: e.target.checked })} />
-                        <UserX size={16} /><span>曾经的好友</span>
+                        <UserX size={16} />
+                        <span className="chip-label">曾经的好友</span>
+                        <span className="chip-count">{contactTypeCounts.deletedFriends}</span>
                     </label>
                 </div>
 
                 <div className="contacts-count">
-                    共 {filteredContacts.length} 个联系人
+                    共 {filteredContacts.length} / {contacts.length} 个联系人
+                    {contactsUpdatedAt && (
+                        <span className="contacts-cache-meta">
+                            {contactsDataSource === 'cache' ? '缓存' : '最新'} · 更新于 {contactsUpdatedAtLabel}
+                        </span>
+                    )}
+                    {contacts.length > 0 && (
+                        <span className="contacts-cache-meta">
+                            头像缓存 {avatarCachedCount}/{contacts.length}
+                            {avatarCacheUpdatedAtLabel ? ` · 更新于 ${avatarCacheUpdatedAtLabel}` : ''}
+                        </span>
+                    )}
+                    {isLoading && contacts.length > 0 && (
+                        <span className="contacts-cache-meta syncing">后台同步中...</span>
+                    )}
+                    {avatarEnrichProgress.running && (
+                        <span className="avatar-enrich-progress">
+                            头像补全中 {avatarEnrichProgress.loaded}/{avatarEnrichProgress.total}
+                        </span>
+                    )}
                 </div>
 
                 {exportMode && (
@@ -315,61 +865,105 @@ function ContactsPage() {
                     </div>
                 )}
 
-                {isLoading ? (
+                {contacts.length === 0 && loadIssue ? (
+                    <div className="load-issue-state">
+                        <div className="issue-card">
+                            <div className="issue-title">
+                                <AlertTriangle size={18} />
+                                <span>{loadIssue.title}</span>
+                            </div>
+                            <p className="issue-message">{loadIssue.message}</p>
+                            <p className="issue-reason">{loadIssue.reason}</p>
+                            <ul className="issue-hints">
+                                <li>可能原因1：数据库当前仍在执行高开销查询（例如导出页后台统计）。</li>
+                                <li>可能原因2：contact.db 数据量较大，首次查询时间过长。</li>
+                                <li>可能原因3：数据库连接状态异常或 IPC 调用卡住。</li>
+                            </ul>
+                            <div className="issue-actions">
+                                <button className="issue-btn primary" onClick={() => void loadContacts()}>
+                                    <RefreshCw size={14} />
+                                    <span>重试加载</span>
+                                </button>
+                                <button className="issue-btn" onClick={() => setShowDiagnostics(prev => !prev)}>
+                                    <ClipboardList size={14} />
+                                    <span>{showDiagnostics ? '收起诊断详情' : '查看诊断详情'}</span>
+                                </button>
+                                <button className="issue-btn" onClick={copyDiagnostics}>
+                                    <span>复制诊断信息</span>
+                                </button>
+                            </div>
+                            {showDiagnostics && (
+                                <pre className="issue-diagnostics">{diagnosticsText}</pre>
+                            )}
+                        </div>
+                    </div>
+                ) : isLoading && contacts.length === 0 ? (
                     <div className="loading-state">
                         <Loader2 size={32} className="spin" />
-                        <span>加载中...</span>
+                        <span>联系人加载中...</span>
                     </div>
                 ) : filteredContacts.length === 0 ? (
                     <div className="empty-state">
                         <span>暂无联系人</span>
                     </div>
                 ) : (
-                    <div className="contacts-list">
-                        {filteredContacts.map(contact => {
+                    <div className="contacts-list" ref={listRef} onScroll={onContactsListScroll}>
+                        <div
+                            className="contacts-list-virtual"
+                            style={{ height: filteredContacts.length * VIRTUAL_ROW_HEIGHT }}
+                        >
+                            {visibleContacts.map((contact, idx) => {
+                            const absoluteIndex = startIndex + idx
+                            const top = absoluteIndex * VIRTUAL_ROW_HEIGHT
                             const isChecked = selectedUsernames.has(contact.username)
                             const isActive = !exportMode && selectedContact?.username === contact.username
                             return (
                                 <div
                                     key={contact.username}
-                                    className={`contact-item ${exportMode && isChecked ? 'selected' : ''} ${isActive ? 'active' : ''}`}
-                                    onClick={() => {
-                                        if (exportMode) {
-                                            toggleContactSelected(contact.username, !isChecked)
-                                        } else {
-                                            setSelectedContact(isActive ? null : contact)
-                                        }
-                                    }}
+                                    className="contact-row"
+                                    style={{ transform: `translateY(${top}px)` }}
                                 >
-                                    {exportMode && (
-                                        <label className="contact-select" onClick={e => e.stopPropagation()}>
-                                            <input
-                                                type="checkbox"
-                                                checked={isChecked}
-                                                onChange={e => toggleContactSelected(contact.username, e.target.checked)}
-                                            />
-                                        </label>
-                                    )}
-                                    <div className="contact-avatar">
-                                        {contact.avatarUrl ? (
-                                            <img src={contact.avatarUrl} alt="" />
-                                        ) : (
-                                            <span>{getAvatarLetter(contact.displayName)}</span>
+                                    <div
+                                        className={`contact-item ${exportMode && isChecked ? 'selected' : ''} ${isActive ? 'active' : ''}`}
+                                        onClick={() => {
+                                            if (exportMode) {
+                                                toggleContactSelected(contact.username, !isChecked)
+                                            } else {
+                                                setSelectedContact(isActive ? null : contact)
+                                            }
+                                        }}
+                                    >
+                                        {exportMode && (
+                                            <label className="contact-select" onClick={e => e.stopPropagation()}>
+                                                <input
+                                                    type="checkbox"
+                                                    checked={isChecked}
+                                                    onChange={e => toggleContactSelected(contact.username, e.target.checked)}
+                                                />
+                                            </label>
                                         )}
-                                    </div>
-                                    <div className="contact-info">
-                                        <div className="contact-name">{contact.displayName}</div>
-                                        {contact.remark && contact.remark !== contact.displayName && (
-                                            <div className="contact-remark">备注: {contact.remark}</div>
-                                        )}
-                                    </div>
-                                    <div className={`contact-type ${contact.type}`}>
-                                        {getContactTypeIcon(contact.type)}
-                                        <span>{getContactTypeName(contact.type)}</span>
+                                        <div className="contact-avatar">
+                                            {contact.avatarUrl ? (
+                                                <img src={contact.avatarUrl} alt="" loading="lazy" />
+                                            ) : (
+                                                <span>{getAvatarLetter(contact.displayName)}</span>
+                                            )}
+                                        </div>
+                                        <div className="contact-info">
+                                            <div className="contact-name">{contact.displayName}</div>
+                                            {contact.remark && contact.remark !== contact.displayName && (
+                                                <div className="contact-remark">备注: {contact.remark}</div>
+                                            )}
+                                        </div>
+                                        <div className={`contact-type ${contact.type}`}>
+                                            {getContactTypeIcon(contact.type)}
+                                            <span>{getContactTypeName(contact.type)}</span>
+                                        </div>
                                     </div>
                                 </div>
                             )
-                        })}
+                            })}
+                        </div>
                     </div>
                 )}
             </div>

src/pages/DualReportWindow.tsx

@@ -107,7 +107,16 @@ function DualReportWindow() {
       setLoadingStage('完成')
 
       if (result.success && result.data) {
-        setReportData(result.data)
+        const normalizedResponse = result.data.response
+          ? {
+            ...result.data.response,
+            slowest: result.data.response.slowest ?? result.data.response.avg
+          }
+          : undefined
+        setReportData({
+          ...result.data,
+          response: normalizedResponse
+        })
         setIsLoading(false)
       } else {
         setError(result.error || '生成报告失败')

src/pages/GroupAnalyticsPage.tsx

@@ -30,7 +30,7 @@ interface GroupMessageRank {
 }
 
 type AnalysisFunction = 'members' | 'memberExport' | 'ranking' | 'activeHours' | 'mediaStats'
-type MemberExportFormat = 'chatlab' | 'chatlab-jsonl' | 'json' | 'html' | 'txt' | 'excel' | 'weclone'
+type MemberExportFormat = 'chatlab' | 'chatlab-jsonl' | 'json' | 'arkme-json' | 'html' | 'txt' | 'excel' | 'weclone'
 
 interface MemberMessageExportOptions {
   format: MemberExportFormat
@@ -119,6 +119,7 @@ function GroupAnalyticsPage() {
     { value: 'excel', label: 'Excel', desc: '电子表格，适合统计分析' },
     { value: 'txt', label: 'TXT', desc: '纯文本，通用格式' },
     { value: 'json', label: 'JSON', desc: '详细格式，包含完整消息信息' },
+    { value: 'arkme-json', label: 'Arkme JSON', desc: '紧凑 JSON，支持 sender 去重与关系统计' },
     { value: 'chatlab', label: 'ChatLab', desc: '标准格式，支持其他软件导入' },
     { value: 'chatlab-jsonl', label: 'ChatLab JSONL', desc: '流式格式，适合大量消息' },
     { value: 'html', label: 'HTML', desc: '网页格式，可直接浏览' },

src/pages/SettingsPage.tsx

@@ -36,6 +36,18 @@ interface WxidOption {
   modifiedTime: number
 }
 
+const formatDbKeyFailureMessage = (error?: string, logs?: string[]): string => {
+  const base = String(error || '自动获取密钥失败').trim()
+  const tailLogs = Array.isArray(logs)
+    ? logs
+      .map(item => String(item || '').trim())
+      .filter(Boolean)
+      .slice(-6)
+    : []
+  if (tailLogs.length === 0) return base
+  return `${base}；最近状态：${tailLogs.join(' | ')}`
+}
+
 function SettingsPage() {
   const {
     isDbConnected,
@@ -103,12 +115,12 @@ function SettingsPage() {
 
   const [autoTranscribeVoice, setAutoTranscribeVoice] = useState(false)
   const [transcribeLanguages, setTranscribeLanguages] = useState<string[]>(['zh'])
-  const [exportDefaultFormat, setExportDefaultFormat] = useState('excel')
+  const [exportDefaultFormat, setExportDefaultFormat] = useState('json')
   const [exportDefaultDateRange, setExportDefaultDateRange] = useState('today')
   const [exportDefaultMedia, setExportDefaultMedia] = useState(false)
   const [exportDefaultVoiceAsText, setExportDefaultVoiceAsText] = useState(false)
   const [exportDefaultExcelCompactColumns, setExportDefaultExcelCompactColumns] = useState(true)
-  const [exportDefaultConcurrency, setExportDefaultConcurrency] = useState(2)
+  const [exportDefaultConcurrency, setExportDefaultConcurrency] = useState(4)
 
   const [notificationEnabled, setNotificationEnabled] = useState(true)
   const [notificationPosition, setNotificationPosition] = useState<'top-right' | 'top-left' | 'bottom-right' | 'bottom-left'>('top-right')
@@ -286,7 +298,6 @@ function SettingsPage() {
       const savedWhisperModelDir = await configService.getWhisperModelDir()
       const savedAutoTranscribe = await configService.getAutoTranscribeVoice()
       const savedTranscribeLanguages = await configService.getTranscribeLanguages()
-      const savedExportDefaultFormat = await configService.getExportDefaultFormat()
       const savedExportDefaultDateRange = await configService.getExportDefaultDateRange()
       const savedExportDefaultMedia = await configService.getExportDefaultMedia()
       const savedExportDefaultVoiceAsText = await configService.getExportDefaultVoiceAsText()
@@ -327,12 +338,13 @@ function SettingsPage() {
       setLogEnabled(savedLogEnabled)
       setAutoTranscribeVoice(savedAutoTranscribe)
       setTranscribeLanguages(savedTranscribeLanguages)
-      setExportDefaultFormat(savedExportDefaultFormat || 'excel')
+      setExportDefaultFormat('json')
+      await configService.setExportDefaultFormat('json')
       setExportDefaultDateRange(savedExportDefaultDateRange || 'today')
       setExportDefaultMedia(savedExportDefaultMedia ?? false)
       setExportDefaultVoiceAsText(savedExportDefaultVoiceAsText ?? false)
       setExportDefaultExcelCompactColumns(savedExportDefaultExcelCompactColumns ?? true)
-      setExportDefaultConcurrency(savedExportDefaultConcurrency ?? 2)
+      setExportDefaultConcurrency(savedExportDefaultConcurrency ?? 4)
 
       setNotificationEnabled(savedNotificationEnabled)
       setNotificationPosition(savedNotificationPosition)
@@ -725,7 +737,10 @@ function SettingsPage() {
           setIsManualStartPrompt(true)
           setDbKeyStatus('需要手动启动微信')
         } else {
-          showMessage(result.error || '自动获取密钥失败', false)
+          if (result.error?.includes('尚未完成登录')) {
+            setDbKeyStatus('请先在微信完成登录后重试')
+          }
+          showMessage(formatDbKeyFailureMessage(result.error, result.logs), false)
         }
       }
     } catch (e: any) {
@@ -1542,6 +1557,7 @@ function SettingsPage() {
     { value: 'chatlab', label: 'ChatLab', desc: '标准格式，支持其他软件导入' },
     { value: 'chatlab-jsonl', label: 'ChatLab JSONL', desc: '流式格式，适合大量消息' },
     { value: 'json', label: 'JSON', desc: '详细格式，包含完整消息信息' },
+    { value: 'arkme-json', label: 'Arkme JSON', desc: '紧凑 JSON，支持 sender 去重与关系统计' },
     { value: 'html', label: 'HTML', desc: '网页格式，可直接浏览' },
     { value: 'txt', label: 'TXT', desc: '纯文本，通用格式' },
     { value: 'weclone', label: 'WeClone CSV', desc: 'WeClone 兼容字段格式（CSV）' },

src/pages/SnsPage.scss

@@ -23,7 +23,7 @@
    ========================================= */
 .sns-main-viewport {
     flex: 1;
-    overflow-y: scroll;
+    overflow: hidden;
     position: relative;
     display: flex;
     justify-content: center;
@@ -35,7 +35,9 @@
     padding: 20px 24px 60px 24px;
     display: flex;
     flex-direction: column;
-    gap: 24px;
+    gap: 0;
+    min-height: 0;
+    height: 100%;
 }
 
 .feed-header {
@@ -44,12 +46,50 @@
     justify-content: space-between;
     margin-bottom: 8px;
     padding: 0 4px;
+    z-index: 2;
+    background: var(--sns-bg-color);
+    border-bottom: 1px solid var(--border-color);
+    padding-top: 10px;
+    padding-bottom: 10px;
 
-    h2 {
-        font-size: 20px;
-        font-weight: 700;
-        margin: 0;
-        color: var(--text-primary);
+    .feed-header-main {
+        display: flex;
+        flex-direction: column;
+        gap: 6px;
+        min-width: 0;
+
+        h2 {
+            font-size: 20px;
+            font-weight: 700;
+            margin: 0;
+            color: var(--text-primary);
+        }
+    }
+
+    .feed-stats-line {
+        font-size: 13px;
+        color: var(--text-secondary);
+        line-height: 1.4;
+
+        &.loading {
+            opacity: 0.7;
+        }
+
+        &.error {
+            color: #d94f45;
+        }
+    }
+
+    .feed-stats-retry {
+        border: none;
+        background: transparent;
+        color: inherit;
+        font-size: 13px;
+        padding: 0;
+        line-height: 1.4;
+        cursor: pointer;
+        text-decoration: underline;
+        text-underline-offset: 2px;
     }
 
     .header-actions {
@@ -85,6 +125,13 @@
     }
 }
 
+.sns-posts-scroll {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    padding-top: 16px;
+}
+
 .posts-list {
     display: flex;
     flex-direction: column;
@@ -1031,9 +1078,11 @@
                     margin-bottom: 0;
                     /* Remove margin to merge */
 
-                    .contact-name {
-                        color: var(--primary);
-                        font-weight: 600;
+                    .contact-meta {
+                        .contact-name {
+                            color: var(--primary);
+                            font-weight: 600;
+                        }
                     }
 
                     /* If the NEXT item is also selected */
@@ -1056,13 +1105,20 @@
                     /* Compensate for missing border */
                 }
 
-                .contact-name {
+                .contact-meta {
                     flex: 1;
-                    font-size: 14px;
-                    color: var(--text-secondary);
-                    white-space: nowrap;
-                    overflow: hidden;
-                    text-overflow: ellipsis;
+                    min-width: 0;
+                    display: flex;
+                    flex-direction: column;
+                    gap: 2px;
+
+                    .contact-name {
+                        font-size: 14px;
+                        color: var(--text-secondary);
+                        white-space: nowrap;
+                        overflow: hidden;
+                        text-overflow: ellipsis;
+                    }
                 }
             }
         }
@@ -1909,10 +1965,31 @@
     font-size: 12px;
     color: var(--text-tertiary);
     margin: 0;
-    padding-left: 24px;
     line-height: 1.4;
 }
 
+.export-media-check-grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
+    gap: 8px;
+
+    label {
+        display: inline-flex;
+        align-items: center;
+        gap: 6px;
+        font-size: 13px;
+        color: var(--text-primary);
+        padding: 8px 10px;
+        border: 1px solid var(--border-color);
+        border-radius: 8px;
+        background: var(--bg-secondary);
+    }
+
+    input[type='checkbox'] {
+        margin: 0;
+    }
+}
+
 .export-progress {
     display: flex;
     flex-direction: column;
@@ -2091,4 +2168,4 @@
             cursor: not-allowed;
         }
     }
-}
+}

src/pages/SnsPage.tsx

@@ -5,6 +5,11 @@ import './SnsPage.scss'
 import { SnsPost } from '../types/sns'
 import { SnsPostItem } from '../components/Sns/SnsPostItem'
 import { SnsFilterPanel } from '../components/Sns/SnsFilterPanel'
+import * as configService from '../services/config'
+
+const SNS_PAGE_CACHE_TTL_MS = 24 * 60 * 60 * 1000
+const SNS_PAGE_CACHE_POST_LIMIT = 200
+const SNS_PAGE_CACHE_SCOPE_FALLBACK = '__default__'
 
 interface Contact {
     username: string
@@ -13,11 +18,29 @@ interface Contact {
     type?: 'friend' | 'former_friend' | 'sns_only'
 }
 
+interface SnsOverviewStats {
+    totalPosts: number
+    totalFriends: number
+    myPosts: number | null
+    earliestTime: number | null
+    latestTime: number | null
+}
+
+type OverviewStatsStatus = 'loading' | 'ready' | 'error'
+
 export default function SnsPage() {
     const [posts, setPosts] = useState<SnsPost[]>([])
     const [loading, setLoading] = useState(false)
     const [hasMore, setHasMore] = useState(true)
     const loadingRef = useRef(false)
+    const [overviewStats, setOverviewStats] = useState<SnsOverviewStats>({
+        totalPosts: 0,
+        totalFriends: 0,
+        myPosts: null,
+        earliestTime: null,
+        latestTime: null
+    })
+    const [overviewStatsStatus, setOverviewStatsStatus] = useState<OverviewStatsStatus>('loading')
 
     // Filter states
     const [searchKeyword, setSearchKeyword] = useState('')
@@ -35,9 +58,11 @@ export default function SnsPage() {
 
     // 导出相关状态
     const [showExportDialog, setShowExportDialog] = useState(false)
-    const [exportFormat, setExportFormat] = useState<'json' | 'html'>('html')
+    const [exportFormat, setExportFormat] = useState<'json' | 'html' | 'arkmejson'>('html')
     const [exportFolder, setExportFolder] = useState('')
-    const [exportMedia, setExportMedia] = useState(false)
+    const [exportImages, setExportImages] = useState(false)
+    const [exportLivePhotos, setExportLivePhotos] = useState(false)
+    const [exportVideos, setExportVideos] = useState(false)
     const [exportDateRange, setExportDateRange] = useState<{ start: string; end: string }>({ start: '', end: '' })
     const [isExporting, setIsExporting] = useState(false)
     const [exportProgress, setExportProgress] = useState<{ current: number; total: number; status: string } | null>(null)
@@ -56,12 +81,34 @@ export default function SnsPage() {
     const [hasNewer, setHasNewer] = useState(false)
     const [loadingNewer, setLoadingNewer] = useState(false)
     const postsRef = useRef<SnsPost[]>([])
+    const overviewStatsRef = useRef<SnsOverviewStats>(overviewStats)
+    const overviewStatsStatusRef = useRef<OverviewStatsStatus>(overviewStatsStatus)
+    const selectedUsernamesRef = useRef<string[]>(selectedUsernames)
+    const searchKeywordRef = useRef(searchKeyword)
+    const jumpTargetDateRef = useRef<Date | undefined>(jumpTargetDate)
+    const cacheScopeKeyRef = useRef('')
     const scrollAdjustmentRef = useRef<{ scrollHeight: number; scrollTop: number } | null>(null)
+    const contactsLoadTokenRef = useRef(0)
 
     // Sync posts ref
     useEffect(() => {
         postsRef.current = posts
     }, [posts])
+    useEffect(() => {
+        overviewStatsRef.current = overviewStats
+    }, [overviewStats])
+    useEffect(() => {
+        overviewStatsStatusRef.current = overviewStatsStatus
+    }, [overviewStatsStatus])
+    useEffect(() => {
+        selectedUsernamesRef.current = selectedUsernames
+    }, [selectedUsernames])
+    useEffect(() => {
+        searchKeywordRef.current = searchKeyword
+    }, [searchKeyword])
+    useEffect(() => {
+        jumpTargetDateRef.current = jumpTargetDate
+    }, [jumpTargetDate])
     // 在 DOM 更新后、浏览器绘制前同步调整滚动位置，防止向上加载时页面跳动
     useLayoutEffect(() => {
         const snapshot = scrollAdjustmentRef.current;
@@ -75,6 +122,163 @@ export default function SnsPage() {
         }
     }, [posts])
 
+    const formatDateOnly = (timestamp: number | null): string => {
+        if (!timestamp || timestamp <= 0) return '--'
+        const date = new Date(timestamp * 1000)
+        if (Number.isNaN(date.getTime())) return '--'
+        const year = date.getFullYear()
+        const month = String(date.getMonth() + 1).padStart(2, '0')
+        const day = String(date.getDate()).padStart(2, '0')
+        return `${year}-${month}-${day}`
+    }
+
+    const isDefaultViewNow = useCallback(() => {
+        return selectedUsernamesRef.current.length === 0 && !searchKeywordRef.current.trim() && !jumpTargetDateRef.current
+    }, [])
+
+    const ensureSnsCacheScopeKey = useCallback(async () => {
+        if (cacheScopeKeyRef.current) return cacheScopeKeyRef.current
+        const wxid = (await configService.getMyWxid())?.trim() || SNS_PAGE_CACHE_SCOPE_FALLBACK
+        const scopeKey = `sns_page:${wxid}`
+        cacheScopeKeyRef.current = scopeKey
+        return scopeKey
+    }, [])
+
+    const persistSnsPageCache = useCallback(async (patch?: { posts?: SnsPost[]; overviewStats?: SnsOverviewStats }) => {
+        if (!isDefaultViewNow()) return
+        try {
+            const scopeKey = await ensureSnsCacheScopeKey()
+            if (!scopeKey) return
+            const existingCache = await configService.getSnsPageCache(scopeKey)
+            let postsToStore = patch?.posts ?? postsRef.current
+            if (!patch?.posts && postsToStore.length === 0) {
+                if (existingCache && Array.isArray(existingCache.posts) && existingCache.posts.length > 0) {
+                    postsToStore = existingCache.posts as SnsPost[]
+                }
+            }
+            const overviewToStore = patch?.overviewStats
+                ?? (overviewStatsStatusRef.current === 'ready'
+                    ? overviewStatsRef.current
+                    : existingCache?.overviewStats ?? overviewStatsRef.current)
+            await configService.setSnsPageCache(scopeKey, {
+                overviewStats: overviewToStore,
+                posts: postsToStore.slice(0, SNS_PAGE_CACHE_POST_LIMIT)
+            })
+        } catch (error) {
+            console.error('Failed to persist SNS page cache:', error)
+        }
+    }, [ensureSnsCacheScopeKey, isDefaultViewNow])
+
+    const hydrateSnsPageCache = useCallback(async () => {
+        try {
+            const scopeKey = await ensureSnsCacheScopeKey()
+            const cached = await configService.getSnsPageCache(scopeKey)
+            if (!cached) return
+            if (Date.now() - cached.updatedAt > SNS_PAGE_CACHE_TTL_MS) return
+
+            const cachedOverview = cached.overviewStats
+            if (cachedOverview) {
+                const cachedTotalPosts = Math.max(0, Number(cachedOverview.totalPosts || 0))
+                const cachedTotalFriends = Math.max(0, Number(cachedOverview.totalFriends || 0))
+                const hasCachedPosts = Array.isArray(cached.posts) && cached.posts.length > 0
+                const hasOverviewData = cachedTotalPosts > 0 || cachedTotalFriends > 0
+                setOverviewStats({
+                    totalPosts: cachedTotalPosts,
+                    totalFriends: cachedTotalFriends,
+                    myPosts: typeof cachedOverview.myPosts === 'number' && Number.isFinite(cachedOverview.myPosts) && cachedOverview.myPosts >= 0
+                        ? Math.floor(cachedOverview.myPosts)
+                        : null,
+                    earliestTime: cachedOverview.earliestTime ?? null,
+                    latestTime: cachedOverview.latestTime ?? null
+                })
+                // 只有明确有统计值（或确实无帖子）时才把缓存视为 ready，避免历史异常 0 卡住显示。
+                setOverviewStatsStatus(hasOverviewData || !hasCachedPosts ? 'ready' : 'loading')
+            }
+
+            if (Array.isArray(cached.posts) && cached.posts.length > 0) {
+                const cachedPosts = cached.posts
+                    .filter((raw): raw is SnsPost => {
+                        if (!raw || typeof raw !== 'object') return false
+                        const row = raw as Record<string, unknown>
+                        return typeof row.id === 'string' && typeof row.createTime === 'number'
+                    })
+                    .slice(0, SNS_PAGE_CACHE_POST_LIMIT)
+                    .sort((a, b) => b.createTime - a.createTime)
+
+                if (cachedPosts.length > 0) {
+                    setPosts(cachedPosts)
+                    setHasMore(true)
+                    setHasNewer(false)
+                }
+            }
+        } catch (error) {
+            console.error('Failed to hydrate SNS page cache:', error)
+        }
+    }, [ensureSnsCacheScopeKey])
+
+    const loadOverviewStats = useCallback(async () => {
+        setOverviewStatsStatus('loading')
+        try {
+            const statsResult = await window.electronAPI.sns.getExportStats()
+            if (!statsResult.success || !statsResult.data) {
+                throw new Error(statsResult.error || '获取朋友圈统计失败')
+            }
+
+            const totalPosts = Math.max(0, Number(statsResult.data.totalPosts || 0))
+            const totalFriends = Math.max(0, Number(statsResult.data.totalFriends || 0))
+            const myPosts = (typeof statsResult.data.myPosts === 'number' && Number.isFinite(statsResult.data.myPosts) && statsResult.data.myPosts >= 0)
+                ? Math.floor(statsResult.data.myPosts)
+                : null
+            let earliestTime: number | null = null
+            let latestTime: number | null = null
+
+            if (totalPosts > 0) {
+                const [latestResult, earliestResult] = await Promise.all([
+                    window.electronAPI.sns.getTimeline(1, 0),
+                    window.electronAPI.sns.getTimeline(1, Math.max(totalPosts - 1, 0))
+                ])
+                const latestTs = Number(latestResult.timeline?.[0]?.createTime || 0)
+                const earliestTs = Number(earliestResult.timeline?.[0]?.createTime || 0)
+
+                if (latestResult.success && Number.isFinite(latestTs) && latestTs > 0) {
+                    latestTime = Math.floor(latestTs)
+                }
+                if (earliestResult.success && Number.isFinite(earliestTs) && earliestTs > 0) {
+                    earliestTime = Math.floor(earliestTs)
+                }
+            }
+
+            const nextOverviewStats = {
+                totalPosts,
+                totalFriends,
+                myPosts,
+                earliestTime,
+                latestTime
+            }
+            setOverviewStats(nextOverviewStats)
+            setOverviewStatsStatus('ready')
+            void persistSnsPageCache({ overviewStats: nextOverviewStats })
+        } catch (error) {
+            console.error('Failed to load SNS overview stats:', error)
+            setOverviewStatsStatus('error')
+        }
+    }, [persistSnsPageCache])
+
+    const renderOverviewStats = () => {
+        if (overviewStatsStatus === 'error') {
+            return (
+                <button type="button" className="feed-stats-retry" onClick={() => { void loadOverviewStats() }}>
+                    统计失败，点击重试
+                </button>
+            )
+        }
+        if (overviewStatsStatus === 'loading') {
+            return '统计中...'
+        }
+        const myPostsLabel = overviewStats.myPosts === null ? '--' : String(overviewStats.myPosts)
+        return `共 ${overviewStats.totalPosts} 条 ｜ 我的朋友圈 ${myPostsLabel} 条 ｜ ${formatDateOnly(overviewStats.earliestTime)} ~ ${formatDateOnly(overviewStats.latestTime)} ｜ ${overviewStats.totalFriends} 位好友`
+    }
+
     const loadPosts = useCallback(async (options: { reset?: boolean, direction?: 'older' | 'newer' } = {}) => {
         const { reset = false, direction = 'older' } = options
         if (loadingRef.current) return
@@ -119,7 +323,9 @@ export default function SnsPage() {
                         const uniqueNewer = result.timeline.filter((p: SnsPost) => !existingIds.has(p.id));
 
                         if (uniqueNewer.length > 0) {
-                            setPosts(prev => [...uniqueNewer, ...prev].sort((a, b) => b.createTime - a.createTime));
+                            const merged = [...uniqueNewer, ...currentPosts].sort((a, b) => b.createTime - a.createTime)
+                            setPosts(merged);
+                            void persistSnsPageCache({ posts: merged })
                         }
                         setHasNewer(result.timeline.length >= limit);
                     } else {
@@ -149,6 +355,7 @@ export default function SnsPage() {
             if (result.success && result.timeline) {
                 if (reset) {
                     setPosts(result.timeline)
+                    void persistSnsPageCache({ posts: result.timeline })
                     setHasMore(result.timeline.length >= limit)
 
                     // Check for newer items above topTs
@@ -165,7 +372,9 @@ export default function SnsPage() {
                     }
                 } else {
                     if (result.timeline.length > 0) {
-                        setPosts(prev => [...prev, ...result.timeline!].sort((a, b) => b.createTime - a.createTime))
+                        const merged = [...postsRef.current, ...result.timeline!].sort((a, b) => b.createTime - a.createTime)
+                        setPosts(merged)
+                        void persistSnsPageCache({ posts: merged })
                     }
                     if (result.timeline.length < limit) {
                         setHasMore(false)
@@ -179,22 +388,16 @@ export default function SnsPage() {
             setLoadingNewer(false)
             loadingRef.current = false
         }
-    }, [selectedUsernames, searchKeyword, jumpTargetDate])
+    }, [jumpTargetDate, persistSnsPageCache, searchKeyword, selectedUsernames])
 
-    // Load Contacts（合并好友+曾经好友+朋友圈发布者，enrichSessionsContactInfo 补充头像）
+    // Load Contacts（仅加载好友/曾经好友，不再统计朋友圈条数）
     const loadContacts = useCallback(async () => {
+        const requestToken = ++contactsLoadTokenRef.current
         setContactsLoading(true)
         try {
-            // 并行获取联系人列表和朋友圈发布者列表
-            const [contactsResult, snsResult] = await Promise.all([
-                window.electronAPI.chat.getContacts(),
-                window.electronAPI.sns.getSnsUsernames()
-            ])
-
-            // 以联系人为基础，按 username 去重
+            const contactsResult = await window.electronAPI.chat.getContacts()
             const contactMap = new Map<string, Contact>()
 
-            // 好友和曾经的好友
             if (contactsResult.success && contactsResult.contacts) {
                 for (const c of contactsResult.contacts) {
                     if (c.type === 'friend' || c.type === 'former_friend') {
@@ -208,55 +411,61 @@ export default function SnsPage() {
                 }
             }
 
-            // 朋友圈发布者（补充不在联系人列表中的用户）
-            if (snsResult.success && snsResult.usernames) {
-                for (const u of snsResult.usernames) {
-                    if (!contactMap.has(u)) {
-                        contactMap.set(u, { username: u, displayName: u, type: 'sns_only' })
-                    }
-                }
-            }
+            let contactsList = Array.from(contactMap.values())
 
-            const allUsernames = Array.from(contactMap.keys())
+            if (requestToken !== contactsLoadTokenRef.current) return
+            setContacts(contactsList)
+
+            const allUsernames = contactsList.map(c => c.username)
 
             // 用 enrichSessionsContactInfo 统一补充头像和显示名
             if (allUsernames.length > 0) {
                 const enriched = await window.electronAPI.chat.enrichSessionsContactInfo(allUsernames)
                 if (enriched.success && enriched.contacts) {
-                    for (const [username, extra] of Object.entries(enriched.contacts) as [string, { displayName?: string; avatarUrl?: string }][]) {
-                        const c = contactMap.get(username)
-                        if (c) {
-                            c.displayName = extra.displayName || c.displayName
-                            c.avatarUrl = extra.avatarUrl || c.avatarUrl
+                    contactsList = contactsList.map(contact => {
+                        const extra = enriched.contacts?.[contact.username]
+                        if (!extra) return contact
+                        return {
+                            ...contact,
+                            displayName: extra.displayName || contact.displayName,
+                            avatarUrl: extra.avatarUrl || contact.avatarUrl
                         }
-                    }
+                    })
+                    if (requestToken !== contactsLoadTokenRef.current) return
+                    setContacts(contactsList)
                 }
             }
-
-            setContacts(Array.from(contactMap.values()))
         } catch (error) {
+            if (requestToken !== contactsLoadTokenRef.current) return
             console.error('Failed to load contacts:', error)
         } finally {
-            setContactsLoading(false)
+            if (requestToken === contactsLoadTokenRef.current) {
+                setContactsLoading(false)
+            }
         }
     }, [])
 
     // Initial Load & Listeners
     useEffect(() => {
+        void hydrateSnsPageCache()
         loadContacts()
-    }, [loadContacts])
+        loadOverviewStats()
+    }, [hydrateSnsPageCache, loadContacts, loadOverviewStats])
 
     useEffect(() => {
         const handleChange = () => {
+            cacheScopeKeyRef.current = ''
             // wxid changed, reset everything
             setPosts([]); setHasMore(true); setHasNewer(false);
             setSelectedUsernames([]); setSearchKeyword(''); setJumpTargetDate(undefined);
+            void hydrateSnsPageCache()
             loadContacts();
+            loadOverviewStats();
             loadPosts({ reset: true });
         }
         window.addEventListener('wxid-changed', handleChange as EventListener)
         return () => window.removeEventListener('wxid-changed', handleChange as EventListener)
-    }, [loadContacts, loadPosts])
+    }, [hydrateSnsPageCache, loadContacts, loadOverviewStats, loadPosts])
 
     useEffect(() => {
         const timer = setTimeout(() => {
@@ -285,10 +494,15 @@ export default function SnsPage() {
 
     return (
         <div className="sns-page-layout">
-            <div className="sns-main-viewport" onScroll={handleScroll} onWheel={handleWheel} ref={postsContainerRef}>
+            <div className="sns-main-viewport">
                 <div className="sns-feed-container">
                     <div className="feed-header">
-                        <h2>朋友圈</h2>
+                        <div className="feed-header-main">
+                            <h2>朋友圈</h2>
+                            <div className={`feed-stats-line ${overviewStatsStatus}`}>
+                                {renderOverviewStats()}
+                            </div>
+                        </div>
                         <div className="header-actions">
                             <button
                                 onClick={async () => {
@@ -325,6 +539,7 @@ export default function SnsPage() {
                                 onClick={() => {
                                     setRefreshSpin(true)
                                     loadPosts({ reset: true })
+                                    loadOverviewStats()
                                     setTimeout(() => setRefreshSpin(false), 800)
                                 }}
                                 disabled={loading || loadingNewer}
@@ -336,75 +551,84 @@ export default function SnsPage() {
                         </div>
                     </div>
 
-                    {loadingNewer && (
-                        <div className="status-indicator loading-newer">
-                            <RefreshCw size={16} className="spinning" />
-                            <span>正在检查更新的动态...</span>
-                        </div>
-                    )}
-
-                    {!loadingNewer && hasNewer && (
-                        <div className="status-indicator newer-hint" onClick={() => loadPosts({ direction: 'newer' })}>
-                            有新动态，点击查看
-                        </div>
-                    )}
-
-                    <div className="posts-list">
-                        {posts.map(post => (
-                            <SnsPostItem
-                                key={post.id}
-                                post={{ ...post, isProtected: triggerInstalled === true }}
-                                onPreview={(src, isVideo, liveVideoPath) => {
-                                    if (isVideo) {
-                                        void window.electronAPI.window.openVideoPlayerWindow(src)
-                                    } else {
-                                        void window.electronAPI.window.openImageViewerWindow(src, liveVideoPath || undefined)
-                                    }
-                                }}
-                                onDebug={(p) => setDebugPost(p)}
-                                onDelete={(postId) => setPosts(prev => prev.filter(p => p.id !== postId))}
-                            />
-                        ))}
-                    </div>
-
-                    {loading && posts.length === 0 && (
-                        <div className="initial-loading">
-                            <div className="loading-pulse">
-                                <div className="pulse-circle"></div>
-                                <span>正在加载朋友圈...</span>
+                    <div className="sns-posts-scroll" onScroll={handleScroll} onWheel={handleWheel} ref={postsContainerRef}>
+                        {loadingNewer && (
+                            <div className="status-indicator loading-newer">
+                                <RefreshCw size={16} className="spinning" />
+                                <span>正在检查更新的动态...</span>
                             </div>
-                        </div>
-                    )}
+                        )}
 
-                    {loading && posts.length > 0 && (
-                        <div className="status-indicator loading-more">
-                            <RefreshCw size={16} className="spinning" />
-                            <span>正在加载更多...</span>
-                        </div>
-                    )}
+                        {!loadingNewer && hasNewer && (
+                            <div className="status-indicator newer-hint" onClick={() => loadPosts({ direction: 'newer' })}>
+                                有新动态，点击查看
+                            </div>
+                        )}
 
-                    {!hasMore && posts.length > 0 && (
-                        <div className="status-indicator no-more">{
-                            selectedUsernames.length === 1 &&
-                            contacts.find(c => c.username === selectedUsernames[0])?.type === 'former_friend'
-                                ? '在时间的长河里刻舟求剑'
-                                : '或许过往已无可溯洄，但好在还有可以与你相遇的明天'
-                        }</div>
-                    )}
-
-                    {!loading && posts.length === 0 && (
-                        <div className="no-results">
-                            <div className="no-results-icon"><Search size={48} /></div>
-                            <p>未找到相关动态</p>
-                            {(selectedUsernames.length > 0 || searchKeyword || jumpTargetDate) && (
-                                <button onClick={() => {
-                                    setSearchKeyword(''); setSelectedUsernames([]); setJumpTargetDate(undefined);
-                                }} className="reset-inline">
-                                    重置筛选条件
-                                </button>
-                            )}
+                        <div className="posts-list">
+                            {posts.map(post => (
+                                <SnsPostItem
+                                    key={post.id}
+                                    post={{ ...post, isProtected: triggerInstalled === true }}
+                                    onPreview={(src, isVideo, liveVideoPath) => {
+                                        if (isVideo) {
+                                            void window.electronAPI.window.openVideoPlayerWindow(src)
+                                        } else {
+                                            void window.electronAPI.window.openImageViewerWindow(src, liveVideoPath || undefined)
+                                        }
+                                    }}
+                                    onDebug={(p) => setDebugPost(p)}
+                                    onDelete={(postId) => {
+                                        setPosts(prev => {
+                                            const next = prev.filter(p => p.id !== postId)
+                                            void persistSnsPageCache({ posts: next })
+                                            return next
+                                        })
+                                        loadOverviewStats()
+                                    }}
+                                />
+                            ))}
                         </div>
-                    )}
+
+                        {loading && posts.length === 0 && (
+                            <div className="initial-loading">
+                                <div className="loading-pulse">
+                                    <div className="pulse-circle"></div>
+                                    <span>正在加载朋友圈...</span>
+                                </div>
+                            </div>
+                        )}
+
+                        {loading && posts.length > 0 && (
+                            <div className="status-indicator loading-more">
+                                <RefreshCw size={16} className="spinning" />
+                                <span>正在加载更多...</span>
+                            </div>
+                        )}
+
+                        {!hasMore && posts.length > 0 && (
+                            <div className="status-indicator no-more">{
+                                selectedUsernames.length === 1 &&
+                                contacts.find(c => c.username === selectedUsernames[0])?.type === 'former_friend'
+                                    ? '在时间的长河里刻舟求剑'
+                                    : '或许过往已无可溯洄，但好在还有可以与你相遇的明天'
+                            }</div>
+                        )}
+
+                        {!loading && posts.length === 0 && (
+                            <div className="no-results">
+                                <div className="no-results-icon"><Search size={48} /></div>
+                                <p>未找到相关动态</p>
+                                {(selectedUsernames.length > 0 || searchKeyword || jumpTargetDate) && (
+                                    <button onClick={() => {
+                                        setSearchKeyword(''); setSelectedUsernames([]); setJumpTargetDate(undefined);
+                                    }} className="reset-inline">
+                                        重置筛选条件
+                                    </button>
+                                )}
+                            </div>
+                        )}
+                    </div>
                 </div>
             </div>
 
@@ -597,6 +821,15 @@ export default function SnsPage() {
                                                 <span>JSON</span>
                                                 <small>结构化数据</small>
                                             </button>
+                                            <button
+                                                className={`format-option ${exportFormat === 'arkmejson' ? 'active' : ''}`}
+                                                onClick={() => setExportFormat('arkmejson')}
+                                                disabled={isExporting}
+                                            >
+                                                <FileJson size={20} />
+                                                <span>ArkmeJSON</span>
+                                                <small>结构化数据（含互动身份）</small>
+                                            </button>
                                         </div>
                                     </div>
 
@@ -658,22 +891,40 @@ export default function SnsPage() {
 
                                     {/* 媒体导出 */}
                                     <div className="export-section">
-                                        <div className="export-toggle-row">
-                                            <div className="toggle-label">
-                                                <Image size={16} />
-                                                <span>导出媒体文件（图片/视频）</span>
-                                            </div>
-                                            <button
-                                                className={`toggle-switch${exportMedia ? ' active' : ''}`}
-                                                onClick={() => !isExporting && setExportMedia(!exportMedia)}
-                                                disabled={isExporting}
-                                            >
-                                                <span className="toggle-knob" />
-                                            </button>
+                                        <label className="export-label">
+                                            <Image size={14} />
+                                            媒体文件（可多选）
+                                        </label>
+                                        <div className="export-media-check-grid">
+                                            <label>
+                                                <input
+                                                    type="checkbox"
+                                                    checked={exportImages}
+                                                    onChange={(e) => setExportImages(e.target.checked)}
+                                                    disabled={isExporting}
+                                                />
+                                                图片
+                                            </label>
+                                            <label>
+                                                <input
+                                                    type="checkbox"
+                                                    checked={exportLivePhotos}
+                                                    onChange={(e) => setExportLivePhotos(e.target.checked)}
+                                                    disabled={isExporting}
+                                                />
+                                                实况图
+                                            </label>
+                                            <label>
+                                                <input
+                                                    type="checkbox"
+                                                    checked={exportVideos}
+                                                    onChange={(e) => setExportVideos(e.target.checked)}
+                                                    disabled={isExporting}
+                                                />
+                                                视频
+                                            </label>
                                         </div>
-                                        {exportMedia && (
-                                            <p className="export-media-hint">媒体文件将保存到输出目录的 media 子目录中，可能需要较长时间</p>
-                                        )}
+                                        <p className="export-media-hint">全不勾选时仅导出文本信息，不导出媒体文件</p>
                                     </div>
 
                                     {/* 同步提示 */}
@@ -723,7 +974,9 @@ export default function SnsPage() {
                                                         format: exportFormat,
                                                         usernames: selectedUsernames.length > 0 ? selectedUsernames : undefined,
                                                         keyword: searchKeyword || undefined,
-                                                        exportMedia,
+                                                        exportImages,
+                                                        exportLivePhotos,
+                                                        exportVideos,
                                                         startTime: exportDateRange.start ? Math.floor(new Date(exportDateRange.start).getTime() / 1000) : undefined,
                                                         endTime: exportDateRange.end ? Math.floor(new Date(exportDateRange.end + 'T23:59:59').getTime() / 1000) : undefined
                                                     })

src/pages/WelcomePage.tsx

@@ -23,6 +23,18 @@ interface WelcomePageProps {
   standalone?: boolean
 }
 
+const formatDbKeyFailureMessage = (error?: string, logs?: string[]): string => {
+  const base = String(error || '自动获取密钥失败').trim()
+  const tailLogs = Array.isArray(logs)
+    ? logs
+      .map(item => String(item || '').trim())
+      .filter(Boolean)
+      .slice(-6)
+    : []
+  if (tailLogs.length === 0) return base
+  return `${base}；最近状态：${tailLogs.join(' | ')}`
+}
+
 function WelcomePage({ standalone = false }: WelcomePageProps) {
   const navigate = useNavigate()
   const { isDbConnected, setDbConnected, setLoading } = useAppStore()
@@ -292,7 +304,10 @@ function WelcomePage({ standalone = false }: WelcomePageProps) {
           setIsManualStartPrompt(true)
           setDbKeyStatus('需要手动启动微信')
         } else {
-          setError(result.error || '自动获取密钥失败')
+          if (result.error?.includes('尚未完成登录')) {
+            setDbKeyStatus('请先在微信完成登录后重试')
+          }
+          setError(formatDbKeyFailureMessage(result.error, result.logs))
         }
       }
     } catch (e) {

src/services/config.ts

@@ -32,6 +32,19 @@ export const CONFIG_KEYS = {
   EXPORT_DEFAULT_EXCEL_COMPACT_COLUMNS: 'exportDefaultExcelCompactColumns',
   EXPORT_DEFAULT_TXT_COLUMNS: 'exportDefaultTxtColumns',
   EXPORT_DEFAULT_CONCURRENCY: 'exportDefaultConcurrency',
+  EXPORT_WRITE_LAYOUT: 'exportWriteLayout',
+  EXPORT_SESSION_NAME_PREFIX_ENABLED: 'exportSessionNamePrefixEnabled',
+  EXPORT_LAST_SESSION_RUN_MAP: 'exportLastSessionRunMap',
+  EXPORT_LAST_CONTENT_RUN_MAP: 'exportLastContentRunMap',
+  EXPORT_SESSION_RECORD_MAP: 'exportSessionRecordMap',
+  EXPORT_LAST_SNS_POST_COUNT: 'exportLastSnsPostCount',
+  EXPORT_SESSION_MESSAGE_COUNT_CACHE_MAP: 'exportSessionMessageCountCacheMap',
+  EXPORT_SESSION_CONTENT_METRIC_CACHE_MAP: 'exportSessionContentMetricCacheMap',
+  EXPORT_SNS_STATS_CACHE_MAP: 'exportSnsStatsCacheMap',
+  SNS_PAGE_CACHE_MAP: 'snsPageCacheMap',
+  CONTACTS_LOAD_TIMEOUT_MS: 'contactsLoadTimeoutMs',
+  CONTACTS_LIST_CACHE_MAP: 'contactsListCacheMap',
+  CONTACTS_AVATAR_CACHE_MAP: 'contactsAvatarCacheMap',
 
   // 安全
   AUTH_ENABLED: 'authEnabled',
@@ -389,6 +402,594 @@ export async function setExportDefaultConcurrency(concurrency: number): Promise<
   await config.set(CONFIG_KEYS.EXPORT_DEFAULT_CONCURRENCY, concurrency)
 }
 
+export type ExportWriteLayout = 'A' | 'B' | 'C'
+
+export async function getExportWriteLayout(): Promise<ExportWriteLayout> {
+  const value = await config.get(CONFIG_KEYS.EXPORT_WRITE_LAYOUT)
+  if (value === 'A' || value === 'B' || value === 'C') return value
+  return 'B'
+}
+
+export async function setExportWriteLayout(layout: ExportWriteLayout): Promise<void> {
+  await config.set(CONFIG_KEYS.EXPORT_WRITE_LAYOUT, layout)
+}
+
+export async function getExportSessionNamePrefixEnabled(): Promise<boolean> {
+  const value = await config.get(CONFIG_KEYS.EXPORT_SESSION_NAME_PREFIX_ENABLED)
+  if (typeof value === 'boolean') return value
+  return true
+}
+
+export async function setExportSessionNamePrefixEnabled(enabled: boolean): Promise<void> {
+  await config.set(CONFIG_KEYS.EXPORT_SESSION_NAME_PREFIX_ENABLED, enabled)
+}
+
+export async function getExportLastSessionRunMap(): Promise<Record<string, number>> {
+  const value = await config.get(CONFIG_KEYS.EXPORT_LAST_SESSION_RUN_MAP)
+  if (!value || typeof value !== 'object') return {}
+  const entries = Object.entries(value as Record<string, unknown>)
+  const map: Record<string, number> = {}
+  for (const [sessionId, raw] of entries) {
+    if (typeof raw === 'number' && Number.isFinite(raw)) {
+      map[sessionId] = raw
+    }
+  }
+  return map
+}
+
+export async function setExportLastSessionRunMap(map: Record<string, number>): Promise<void> {
+  await config.set(CONFIG_KEYS.EXPORT_LAST_SESSION_RUN_MAP, map)
+}
+
+export async function getExportLastContentRunMap(): Promise<Record<string, number>> {
+  const value = await config.get(CONFIG_KEYS.EXPORT_LAST_CONTENT_RUN_MAP)
+  if (!value || typeof value !== 'object') return {}
+  const entries = Object.entries(value as Record<string, unknown>)
+  const map: Record<string, number> = {}
+  for (const [key, raw] of entries) {
+    if (typeof raw === 'number' && Number.isFinite(raw)) {
+      map[key] = raw
+    }
+  }
+  return map
+}
+
+export async function setExportLastContentRunMap(map: Record<string, number>): Promise<void> {
+  await config.set(CONFIG_KEYS.EXPORT_LAST_CONTENT_RUN_MAP, map)
+}
+
+export interface ExportSessionRecordEntry {
+  exportTime: number
+  content: string
+  outputDir: string
+}
+
+export async function getExportSessionRecordMap(): Promise<Record<string, ExportSessionRecordEntry[]>> {
+  const value = await config.get(CONFIG_KEYS.EXPORT_SESSION_RECORD_MAP)
+  if (!value || typeof value !== 'object') return {}
+  const map: Record<string, ExportSessionRecordEntry[]> = {}
+  const entries = Object.entries(value as Record<string, unknown>)
+  for (const [sessionId, rawList] of entries) {
+    if (!Array.isArray(rawList)) continue
+    const normalizedList: ExportSessionRecordEntry[] = []
+    for (const rawItem of rawList) {
+      if (!rawItem || typeof rawItem !== 'object') continue
+      const exportTime = Number((rawItem as Record<string, unknown>).exportTime)
+      const content = String((rawItem as Record<string, unknown>).content || '').trim()
+      const outputDir = String((rawItem as Record<string, unknown>).outputDir || '').trim()
+      if (!Number.isFinite(exportTime) || exportTime <= 0) continue
+      if (!content || !outputDir) continue
+      normalizedList.push({
+        exportTime: Math.floor(exportTime),
+        content,
+        outputDir
+      })
+    }
+    if (normalizedList.length > 0) {
+      map[sessionId] = normalizedList
+    }
+  }
+  return map
+}
+
+export async function setExportSessionRecordMap(map: Record<string, ExportSessionRecordEntry[]>): Promise<void> {
+  await config.set(CONFIG_KEYS.EXPORT_SESSION_RECORD_MAP, map)
+}
+
+export async function getExportLastSnsPostCount(): Promise<number> {
+  const value = await config.get(CONFIG_KEYS.EXPORT_LAST_SNS_POST_COUNT)
+  if (typeof value === 'number' && Number.isFinite(value) && value >= 0) {
+    return Math.floor(value)
+  }
+  return 0
+}
+
+export async function setExportLastSnsPostCount(count: number): Promise<void> {
+  const normalized = Number.isFinite(count) ? Math.max(0, Math.floor(count)) : 0
+  await config.set(CONFIG_KEYS.EXPORT_LAST_SNS_POST_COUNT, normalized)
+}
+
+export interface ExportSessionMessageCountCacheItem {
+  updatedAt: number
+  counts: Record<string, number>
+}
+
+export interface ExportSessionContentMetricCacheEntry {
+  totalMessages?: number
+  voiceMessages?: number
+  imageMessages?: number
+  videoMessages?: number
+  emojiMessages?: number
+}
+
+export interface ExportSessionContentMetricCacheItem {
+  updatedAt: number
+  metrics: Record<string, ExportSessionContentMetricCacheEntry>
+}
+
+export interface ExportSnsStatsCacheItem {
+  updatedAt: number
+  totalPosts: number
+  totalFriends: number
+}
+
+export interface SnsPageOverviewCache {
+  totalPosts: number
+  totalFriends: number
+  myPosts: number | null
+  earliestTime: number | null
+  latestTime: number | null
+}
+
+export interface SnsPageCacheItem {
+  updatedAt: number
+  overviewStats: SnsPageOverviewCache
+  posts: unknown[]
+}
+
+export interface ContactsListCacheContact {
+  username: string
+  displayName: string
+  remark?: string
+  nickname?: string
+  type: 'friend' | 'group' | 'official' | 'former_friend' | 'other'
+}
+
+export interface ContactsListCacheItem {
+  updatedAt: number
+  contacts: ContactsListCacheContact[]
+}
+
+export interface ContactsAvatarCacheEntry {
+  avatarUrl: string
+  updatedAt: number
+  checkedAt: number
+}
+
+export interface ContactsAvatarCacheItem {
+  updatedAt: number
+  avatars: Record<string, ContactsAvatarCacheEntry>
+}
+
+export async function getExportSessionMessageCountCache(scopeKey: string): Promise<ExportSessionMessageCountCacheItem | null> {
+  if (!scopeKey) return null
+  const value = await config.get(CONFIG_KEYS.EXPORT_SESSION_MESSAGE_COUNT_CACHE_MAP)
+  if (!value || typeof value !== 'object') return null
+  const rawMap = value as Record<string, unknown>
+  const rawItem = rawMap[scopeKey]
+  if (!rawItem || typeof rawItem !== 'object') return null
+
+  const rawUpdatedAt = (rawItem as Record<string, unknown>).updatedAt
+  const rawCounts = (rawItem as Record<string, unknown>).counts
+  if (!rawCounts || typeof rawCounts !== 'object') return null
+
+  const counts: Record<string, number> = {}
+  for (const [sessionId, countRaw] of Object.entries(rawCounts as Record<string, unknown>)) {
+    if (typeof countRaw === 'number' && Number.isFinite(countRaw) && countRaw >= 0) {
+      counts[sessionId] = Math.floor(countRaw)
+    }
+  }
+
+  return {
+    updatedAt: typeof rawUpdatedAt === 'number' && Number.isFinite(rawUpdatedAt) ? rawUpdatedAt : 0,
+    counts
+  }
+}
+
+export async function setExportSessionMessageCountCache(scopeKey: string, counts: Record<string, number>): Promise<void> {
+  if (!scopeKey) return
+  const current = await config.get(CONFIG_KEYS.EXPORT_SESSION_MESSAGE_COUNT_CACHE_MAP)
+  const map = current && typeof current === 'object'
+    ? { ...(current as Record<string, unknown>) }
+    : {}
+
+  const normalized: Record<string, number> = {}
+  for (const [sessionId, countRaw] of Object.entries(counts || {})) {
+    if (typeof countRaw === 'number' && Number.isFinite(countRaw) && countRaw >= 0) {
+      normalized[sessionId] = Math.floor(countRaw)
+    }
+  }
+
+  map[scopeKey] = {
+    updatedAt: Date.now(),
+    counts: normalized
+  }
+  await config.set(CONFIG_KEYS.EXPORT_SESSION_MESSAGE_COUNT_CACHE_MAP, map)
+}
+
+export async function getExportSessionContentMetricCache(scopeKey: string): Promise<ExportSessionContentMetricCacheItem | null> {
+  if (!scopeKey) return null
+  const value = await config.get(CONFIG_KEYS.EXPORT_SESSION_CONTENT_METRIC_CACHE_MAP)
+  if (!value || typeof value !== 'object') return null
+  const rawMap = value as Record<string, unknown>
+  const rawItem = rawMap[scopeKey]
+  if (!rawItem || typeof rawItem !== 'object') return null
+
+  const rawUpdatedAt = (rawItem as Record<string, unknown>).updatedAt
+  const rawMetrics = (rawItem as Record<string, unknown>).metrics
+  if (!rawMetrics || typeof rawMetrics !== 'object') return null
+
+  const metrics: Record<string, ExportSessionContentMetricCacheEntry> = {}
+  for (const [sessionId, rawMetric] of Object.entries(rawMetrics as Record<string, unknown>)) {
+    if (!rawMetric || typeof rawMetric !== 'object') continue
+    const source = rawMetric as Record<string, unknown>
+    const metric: ExportSessionContentMetricCacheEntry = {}
+    if (typeof source.totalMessages === 'number' && Number.isFinite(source.totalMessages) && source.totalMessages >= 0) {
+      metric.totalMessages = Math.floor(source.totalMessages)
+    }
+    if (typeof source.voiceMessages === 'number' && Number.isFinite(source.voiceMessages) && source.voiceMessages >= 0) {
+      metric.voiceMessages = Math.floor(source.voiceMessages)
+    }
+    if (typeof source.imageMessages === 'number' && Number.isFinite(source.imageMessages) && source.imageMessages >= 0) {
+      metric.imageMessages = Math.floor(source.imageMessages)
+    }
+    if (typeof source.videoMessages === 'number' && Number.isFinite(source.videoMessages) && source.videoMessages >= 0) {
+      metric.videoMessages = Math.floor(source.videoMessages)
+    }
+    if (typeof source.emojiMessages === 'number' && Number.isFinite(source.emojiMessages) && source.emojiMessages >= 0) {
+      metric.emojiMessages = Math.floor(source.emojiMessages)
+    }
+    if (Object.keys(metric).length === 0) continue
+    metrics[sessionId] = metric
+  }
+
+  return {
+    updatedAt: typeof rawUpdatedAt === 'number' && Number.isFinite(rawUpdatedAt) ? rawUpdatedAt : 0,
+    metrics
+  }
+}
+
+export async function setExportSessionContentMetricCache(
+  scopeKey: string,
+  metrics: Record<string, ExportSessionContentMetricCacheEntry>
+): Promise<void> {
+  if (!scopeKey) return
+  const current = await config.get(CONFIG_KEYS.EXPORT_SESSION_CONTENT_METRIC_CACHE_MAP)
+  const map = current && typeof current === 'object'
+    ? { ...(current as Record<string, unknown>) }
+    : {}
+
+  const normalized: Record<string, ExportSessionContentMetricCacheEntry> = {}
+  for (const [sessionId, rawMetric] of Object.entries(metrics || {})) {
+    if (!rawMetric || typeof rawMetric !== 'object') continue
+    const metric: ExportSessionContentMetricCacheEntry = {}
+    if (typeof rawMetric.totalMessages === 'number' && Number.isFinite(rawMetric.totalMessages) && rawMetric.totalMessages >= 0) {
+      metric.totalMessages = Math.floor(rawMetric.totalMessages)
+    }
+    if (typeof rawMetric.voiceMessages === 'number' && Number.isFinite(rawMetric.voiceMessages) && rawMetric.voiceMessages >= 0) {
+      metric.voiceMessages = Math.floor(rawMetric.voiceMessages)
+    }
+    if (typeof rawMetric.imageMessages === 'number' && Number.isFinite(rawMetric.imageMessages) && rawMetric.imageMessages >= 0) {
+      metric.imageMessages = Math.floor(rawMetric.imageMessages)
+    }
+    if (typeof rawMetric.videoMessages === 'number' && Number.isFinite(rawMetric.videoMessages) && rawMetric.videoMessages >= 0) {
+      metric.videoMessages = Math.floor(rawMetric.videoMessages)
+    }
+    if (typeof rawMetric.emojiMessages === 'number' && Number.isFinite(rawMetric.emojiMessages) && rawMetric.emojiMessages >= 0) {
+      metric.emojiMessages = Math.floor(rawMetric.emojiMessages)
+    }
+    if (Object.keys(metric).length === 0) continue
+    normalized[sessionId] = metric
+  }
+
+  map[scopeKey] = {
+    updatedAt: Date.now(),
+    metrics: normalized
+  }
+  await config.set(CONFIG_KEYS.EXPORT_SESSION_CONTENT_METRIC_CACHE_MAP, map)
+}
+
+export async function getExportSnsStatsCache(scopeKey: string): Promise<ExportSnsStatsCacheItem | null> {
+  if (!scopeKey) return null
+  const value = await config.get(CONFIG_KEYS.EXPORT_SNS_STATS_CACHE_MAP)
+  if (!value || typeof value !== 'object') return null
+  const rawMap = value as Record<string, unknown>
+  const rawItem = rawMap[scopeKey]
+  if (!rawItem || typeof rawItem !== 'object') return null
+
+  const raw = rawItem as Record<string, unknown>
+  const totalPosts = typeof raw.totalPosts === 'number' && Number.isFinite(raw.totalPosts) && raw.totalPosts >= 0
+    ? Math.floor(raw.totalPosts)
+    : 0
+  const totalFriends = typeof raw.totalFriends === 'number' && Number.isFinite(raw.totalFriends) && raw.totalFriends >= 0
+    ? Math.floor(raw.totalFriends)
+    : 0
+  const updatedAt = typeof raw.updatedAt === 'number' && Number.isFinite(raw.updatedAt)
+    ? raw.updatedAt
+    : 0
+
+  return { updatedAt, totalPosts, totalFriends }
+}
+
+export async function setExportSnsStatsCache(
+  scopeKey: string,
+  stats: { totalPosts: number; totalFriends: number }
+): Promise<void> {
+  if (!scopeKey) return
+  const current = await config.get(CONFIG_KEYS.EXPORT_SNS_STATS_CACHE_MAP)
+  const map = current && typeof current === 'object'
+    ? { ...(current as Record<string, unknown>) }
+    : {}
+
+  map[scopeKey] = {
+    updatedAt: Date.now(),
+    totalPosts: Number.isFinite(stats.totalPosts) ? Math.max(0, Math.floor(stats.totalPosts)) : 0,
+    totalFriends: Number.isFinite(stats.totalFriends) ? Math.max(0, Math.floor(stats.totalFriends)) : 0
+  }
+
+  await config.set(CONFIG_KEYS.EXPORT_SNS_STATS_CACHE_MAP, map)
+}
+
+export async function getSnsPageCache(scopeKey: string): Promise<SnsPageCacheItem | null> {
+  if (!scopeKey) return null
+  const value = await config.get(CONFIG_KEYS.SNS_PAGE_CACHE_MAP)
+  if (!value || typeof value !== 'object') return null
+  const rawMap = value as Record<string, unknown>
+  const rawItem = rawMap[scopeKey]
+  if (!rawItem || typeof rawItem !== 'object') return null
+
+  const raw = rawItem as Record<string, unknown>
+  const rawOverview = raw.overviewStats
+  const rawPosts = raw.posts
+  if (!rawOverview || typeof rawOverview !== 'object' || !Array.isArray(rawPosts)) return null
+
+  const overviewObj = rawOverview as Record<string, unknown>
+  const normalizeNumber = (v: unknown) => (typeof v === 'number' && Number.isFinite(v) ? Math.floor(v) : 0)
+  const normalizeNullableTimestamp = (v: unknown) => {
+    if (v === null || v === undefined) return null
+    if (typeof v === 'number' && Number.isFinite(v) && v > 0) return Math.floor(v)
+    return null
+  }
+  const normalizeNullableCount = (v: unknown) => {
+    if (v === null || v === undefined) return null
+    if (typeof v === 'number' && Number.isFinite(v) && v >= 0) return Math.floor(v)
+    return null
+  }
+
+  return {
+    updatedAt: typeof raw.updatedAt === 'number' && Number.isFinite(raw.updatedAt) ? raw.updatedAt : 0,
+    overviewStats: {
+      totalPosts: Math.max(0, normalizeNumber(overviewObj.totalPosts)),
+      totalFriends: Math.max(0, normalizeNumber(overviewObj.totalFriends)),
+      myPosts: normalizeNullableCount(overviewObj.myPosts),
+      earliestTime: normalizeNullableTimestamp(overviewObj.earliestTime),
+      latestTime: normalizeNullableTimestamp(overviewObj.latestTime)
+    },
+    posts: rawPosts
+  }
+}
+
+export async function setSnsPageCache(
+  scopeKey: string,
+  payload: { overviewStats: SnsPageOverviewCache; posts: unknown[] }
+): Promise<void> {
+  if (!scopeKey) return
+  const current = await config.get(CONFIG_KEYS.SNS_PAGE_CACHE_MAP)
+  const map = current && typeof current === 'object'
+    ? { ...(current as Record<string, unknown>) }
+    : {}
+
+  const normalizeNumber = (v: unknown) => (typeof v === 'number' && Number.isFinite(v) ? Math.max(0, Math.floor(v)) : 0)
+  const normalizeNullableTimestamp = (v: unknown) => {
+    if (v === null || v === undefined) return null
+    if (typeof v === 'number' && Number.isFinite(v) && v > 0) return Math.floor(v)
+    return null
+  }
+  const normalizeNullableCount = (v: unknown) => {
+    if (v === null || v === undefined) return null
+    if (typeof v === 'number' && Number.isFinite(v) && v >= 0) return Math.floor(v)
+    return null
+  }
+
+  map[scopeKey] = {
+    updatedAt: Date.now(),
+    overviewStats: {
+      totalPosts: normalizeNumber(payload?.overviewStats?.totalPosts),
+      totalFriends: normalizeNumber(payload?.overviewStats?.totalFriends),
+      myPosts: normalizeNullableCount(payload?.overviewStats?.myPosts),
+      earliestTime: normalizeNullableTimestamp(payload?.overviewStats?.earliestTime),
+      latestTime: normalizeNullableTimestamp(payload?.overviewStats?.latestTime)
+    },
+    posts: Array.isArray(payload?.posts) ? payload.posts : []
+  }
+
+  await config.set(CONFIG_KEYS.SNS_PAGE_CACHE_MAP, map)
+}
+
+// 获取通讯录加载超时阈值（毫秒）
+export async function getContactsLoadTimeoutMs(): Promise<number> {
+  const value = await config.get(CONFIG_KEYS.CONTACTS_LOAD_TIMEOUT_MS)
+  if (typeof value === 'number' && Number.isFinite(value) && value >= 1000 && value <= 60000) {
+    return Math.floor(value)
+  }
+  return 3000
+}
+
+// 设置通讯录加载超时阈值（毫秒）
+export async function setContactsLoadTimeoutMs(timeoutMs: number): Promise<void> {
+  const normalized = Number.isFinite(timeoutMs)
+    ? Math.min(60000, Math.max(1000, Math.floor(timeoutMs)))
+    : 3000
+  await config.set(CONFIG_KEYS.CONTACTS_LOAD_TIMEOUT_MS, normalized)
+}
+
+export async function getContactsListCache(scopeKey: string): Promise<ContactsListCacheItem | null> {
+  if (!scopeKey) return null
+  const value = await config.get(CONFIG_KEYS.CONTACTS_LIST_CACHE_MAP)
+  if (!value || typeof value !== 'object') return null
+  const rawMap = value as Record<string, unknown>
+  const rawItem = rawMap[scopeKey]
+  if (!rawItem || typeof rawItem !== 'object') return null
+
+  const rawUpdatedAt = (rawItem as Record<string, unknown>).updatedAt
+  const rawContacts = (rawItem as Record<string, unknown>).contacts
+  if (!Array.isArray(rawContacts)) return null
+
+  const contacts: ContactsListCacheContact[] = []
+  for (const raw of rawContacts) {
+    if (!raw || typeof raw !== 'object') continue
+    const item = raw as Record<string, unknown>
+    const username = typeof item.username === 'string' ? item.username.trim() : ''
+    if (!username) continue
+    const displayName = typeof item.displayName === 'string' ? item.displayName : username
+    const type = typeof item.type === 'string' ? item.type : 'other'
+    contacts.push({
+      username,
+      displayName,
+      remark: typeof item.remark === 'string' ? item.remark : undefined,
+      nickname: typeof item.nickname === 'string' ? item.nickname : undefined,
+      type: (type === 'friend' || type === 'group' || type === 'official' || type === 'former_friend' || type === 'other')
+        ? type
+        : 'other'
+    })
+  }
+
+  return {
+    updatedAt: typeof rawUpdatedAt === 'number' && Number.isFinite(rawUpdatedAt) ? rawUpdatedAt : 0,
+    contacts
+  }
+}
+
+export async function setContactsListCache(scopeKey: string, contacts: ContactsListCacheContact[]): Promise<void> {
+  if (!scopeKey) return
+  const current = await config.get(CONFIG_KEYS.CONTACTS_LIST_CACHE_MAP)
+  const map = current && typeof current === 'object'
+    ? { ...(current as Record<string, unknown>) }
+    : {}
+
+  const normalized: ContactsListCacheContact[] = []
+  for (const contact of contacts || []) {
+    const username = String(contact?.username || '').trim()
+    if (!username) continue
+    const displayName = String(contact?.displayName || username)
+    const type = contact?.type || 'other'
+    if (type !== 'friend' && type !== 'group' && type !== 'official' && type !== 'former_friend' && type !== 'other') {
+      continue
+    }
+    normalized.push({
+      username,
+      displayName,
+      remark: contact?.remark ? String(contact.remark) : undefined,
+      nickname: contact?.nickname ? String(contact.nickname) : undefined,
+      type
+    })
+  }
+
+  map[scopeKey] = {
+    updatedAt: Date.now(),
+    contacts: normalized
+  }
+  await config.set(CONFIG_KEYS.CONTACTS_LIST_CACHE_MAP, map)
+}
+
+export async function getContactsAvatarCache(scopeKey: string): Promise<ContactsAvatarCacheItem | null> {
+  if (!scopeKey) return null
+  const value = await config.get(CONFIG_KEYS.CONTACTS_AVATAR_CACHE_MAP)
+  if (!value || typeof value !== 'object') return null
+  const rawMap = value as Record<string, unknown>
+  const rawItem = rawMap[scopeKey]
+  if (!rawItem || typeof rawItem !== 'object') return null
+
+  const rawUpdatedAt = (rawItem as Record<string, unknown>).updatedAt
+  const rawAvatars = (rawItem as Record<string, unknown>).avatars
+  if (!rawAvatars || typeof rawAvatars !== 'object') return null
+
+  const avatars: Record<string, ContactsAvatarCacheEntry> = {}
+  for (const [rawUsername, rawEntry] of Object.entries(rawAvatars as Record<string, unknown>)) {
+    const username = rawUsername.trim()
+    if (!username) continue
+
+    if (typeof rawEntry === 'string') {
+      const avatarUrl = rawEntry.trim()
+      if (!avatarUrl) continue
+      avatars[username] = {
+        avatarUrl,
+        updatedAt: typeof rawUpdatedAt === 'number' && Number.isFinite(rawUpdatedAt) ? rawUpdatedAt : 0,
+        checkedAt: typeof rawUpdatedAt === 'number' && Number.isFinite(rawUpdatedAt) ? rawUpdatedAt : 0
+      }
+      continue
+    }
+
+    if (!rawEntry || typeof rawEntry !== 'object') continue
+    const entry = rawEntry as Record<string, unknown>
+    const avatarUrl = typeof entry.avatarUrl === 'string' ? entry.avatarUrl.trim() : ''
+    if (!avatarUrl) continue
+    const updatedAt = typeof entry.updatedAt === 'number' && Number.isFinite(entry.updatedAt)
+      ? entry.updatedAt
+      : 0
+    const checkedAt = typeof entry.checkedAt === 'number' && Number.isFinite(entry.checkedAt)
+      ? entry.checkedAt
+      : updatedAt
+
+    avatars[username] = {
+      avatarUrl,
+      updatedAt,
+      checkedAt
+    }
+  }
+
+  return {
+    updatedAt: typeof rawUpdatedAt === 'number' && Number.isFinite(rawUpdatedAt) ? rawUpdatedAt : 0,
+    avatars
+  }
+}
+
+export async function setContactsAvatarCache(
+  scopeKey: string,
+  avatars: Record<string, ContactsAvatarCacheEntry>
+): Promise<void> {
+  if (!scopeKey) return
+  const current = await config.get(CONFIG_KEYS.CONTACTS_AVATAR_CACHE_MAP)
+  const map = current && typeof current === 'object'
+    ? { ...(current as Record<string, unknown>) }
+    : {}
+
+  const normalized: Record<string, ContactsAvatarCacheEntry> = {}
+  for (const [rawUsername, rawEntry] of Object.entries(avatars || {})) {
+    const username = String(rawUsername || '').trim()
+    if (!username || !rawEntry || typeof rawEntry !== 'object') continue
+    const avatarUrl = String(rawEntry.avatarUrl || '').trim()
+    if (!avatarUrl) continue
+    const updatedAt = Number.isFinite(rawEntry.updatedAt)
+      ? Math.max(0, Math.floor(rawEntry.updatedAt))
+      : Date.now()
+    const checkedAt = Number.isFinite(rawEntry.checkedAt)
+      ? Math.max(0, Math.floor(rawEntry.checkedAt))
+      : updatedAt
+    normalized[username] = {
+      avatarUrl,
+      updatedAt,
+      checkedAt
+    }
+  }
+
+  map[scopeKey] = {
+    updatedAt: Date.now(),
+    avatars: normalized
+  }
+  await config.set(CONFIG_KEYS.CONTACTS_AVATAR_CACHE_MAP, map)
+}
+
 // === 安全相关 ===
 
 export async function getAuthEnabled(): Promise<boolean> {

src/services/exportBridge.ts

@@ -0,0 +1,85 @@
+export interface OpenSingleExportPayload {
+  sessionId: string
+  sessionName?: string
+  requestId?: string
+}
+
+export interface ExportSessionStatusPayload {
+  inProgressSessionIds: string[]
+  activeTaskCount: number
+}
+
+export interface SingleExportDialogStatusPayload {
+  requestId: string
+  status: 'initializing' | 'opened' | 'failed'
+  message?: string
+}
+
+const OPEN_SINGLE_EXPORT_EVENT = 'weflow:open-single-export'
+const EXPORT_SESSION_STATUS_EVENT = 'weflow:export-session-status'
+const EXPORT_SESSION_STATUS_REQUEST_EVENT = 'weflow:export-session-status-request'
+const SINGLE_EXPORT_DIALOG_STATUS_EVENT = 'weflow:single-export-dialog-status'
+
+export const emitOpenSingleExport = (payload: OpenSingleExportPayload) => {
+  window.dispatchEvent(new CustomEvent<OpenSingleExportPayload>(OPEN_SINGLE_EXPORT_EVENT, {
+    detail: payload
+  }))
+}
+
+export const onOpenSingleExport = (
+  listener: (payload: OpenSingleExportPayload) => void
+): (() => void) => {
+  const handler = (event: Event) => {
+    const customEvent = event as CustomEvent<OpenSingleExportPayload>
+    listener(customEvent.detail)
+  }
+
+  window.addEventListener(OPEN_SINGLE_EXPORT_EVENT, handler as EventListener)
+  return () => window.removeEventListener(OPEN_SINGLE_EXPORT_EVENT, handler as EventListener)
+}
+
+export const emitExportSessionStatus = (payload: ExportSessionStatusPayload) => {
+  window.dispatchEvent(new CustomEvent<ExportSessionStatusPayload>(EXPORT_SESSION_STATUS_EVENT, {
+    detail: payload
+  }))
+}
+
+export const onExportSessionStatus = (
+  listener: (payload: ExportSessionStatusPayload) => void
+): (() => void) => {
+  const handler = (event: Event) => {
+    const customEvent = event as CustomEvent<ExportSessionStatusPayload>
+    listener(customEvent.detail)
+  }
+
+  window.addEventListener(EXPORT_SESSION_STATUS_EVENT, handler as EventListener)
+  return () => window.removeEventListener(EXPORT_SESSION_STATUS_EVENT, handler as EventListener)
+}
+
+export const requestExportSessionStatus = () => {
+  window.dispatchEvent(new CustomEvent(EXPORT_SESSION_STATUS_REQUEST_EVENT))
+}
+
+export const onExportSessionStatusRequest = (listener: () => void): (() => void) => {
+  const handler = () => listener()
+  window.addEventListener(EXPORT_SESSION_STATUS_REQUEST_EVENT, handler)
+  return () => window.removeEventListener(EXPORT_SESSION_STATUS_REQUEST_EVENT, handler)
+}
+
+export const emitSingleExportDialogStatus = (payload: SingleExportDialogStatusPayload) => {
+  window.dispatchEvent(new CustomEvent<SingleExportDialogStatusPayload>(SINGLE_EXPORT_DIALOG_STATUS_EVENT, {
+    detail: payload
+  }))
+}
+
+export const onSingleExportDialogStatus = (
+  listener: (payload: SingleExportDialogStatusPayload) => void
+): (() => void) => {
+  const handler = (event: Event) => {
+    const customEvent = event as CustomEvent<SingleExportDialogStatusPayload>
+    listener(customEvent.detail)
+  }
+
+  window.addEventListener(SINGLE_EXPORT_DIALOG_STATUS_EVENT, handler as EventListener)
+  return () => window.removeEventListener(SINGLE_EXPORT_DIALOG_STATUS_EVENT, handler as EventListener)
+}

src/stores/chatStore.ts

@@ -32,7 +32,7 @@ export interface ChatState {
   setConnectionError: (error: string | null) => void
   setSessions: (sessions: ChatSession[]) => void
   setFilteredSessions: (sessions: ChatSession[]) => void
-  setCurrentSession: (sessionId: string | null) => void
+  setCurrentSession: (sessionId: string | null, options?: { preserveMessages?: boolean }) => void
   setLoadingSessions: (loading: boolean) => void
   setMessages: (messages: Message[]) => void
   appendMessages: (messages: Message[], prepend?: boolean) => void
@@ -69,12 +69,12 @@ export const useChatStore = create<ChatState>((set, get) => ({
   setSessions: (sessions) => set({ sessions, filteredSessions: sessions }),
   setFilteredSessions: (sessions) => set({ filteredSessions: sessions }),
 
-  setCurrentSession: (sessionId) => set({
+  setCurrentSession: (sessionId, options) => set((state) => ({
     currentSessionId: sessionId,
-    messages: [],
+    messages: options?.preserveMessages ? state.messages : [],
     hasMoreMessages: true,
     hasMoreLater: false
-  }),
+  })),
 
   setLoadingSessions: (loading) => set({ isLoadingSessions: loading }),
 

src/stores/contactTypeCountsStore.ts

@@ -0,0 +1,115 @@
+import { create } from 'zustand'
+import type { ContactInfo } from '../types/models'
+
+export interface ContactTypeTabCounts {
+  private: number
+  group: number
+  official: number
+  former_friend: number
+}
+
+export interface ContactTypeCardCounts {
+  friends: number
+  groups: number
+  officials: number
+  deletedFriends: number
+}
+
+const emptyTabCounts: ContactTypeTabCounts = {
+  private: 0,
+  group: 0,
+  official: 0,
+  former_friend: 0
+}
+
+let inflightPromise: Promise<ContactTypeTabCounts> | null = null
+
+const normalizeCounts = (counts?: Partial<ContactTypeTabCounts> | null): ContactTypeTabCounts => {
+  return {
+    private: Number.isFinite(counts?.private) ? Math.max(0, Math.floor(Number(counts?.private))) : 0,
+    group: Number.isFinite(counts?.group) ? Math.max(0, Math.floor(Number(counts?.group))) : 0,
+    official: Number.isFinite(counts?.official) ? Math.max(0, Math.floor(Number(counts?.official))) : 0,
+    former_friend: Number.isFinite(counts?.former_friend) ? Math.max(0, Math.floor(Number(counts?.former_friend))) : 0
+  }
+}
+
+export const toContactTypeTabCountsFromContacts = (contacts: ContactInfo[]): ContactTypeTabCounts => {
+  const next = { ...emptyTabCounts }
+  for (const contact of contacts || []) {
+    if (contact.type === 'friend') next.private += 1
+    if (contact.type === 'group') next.group += 1
+    if (contact.type === 'official') next.official += 1
+    if (contact.type === 'former_friend') next.former_friend += 1
+  }
+  return next
+}
+
+export const toContactTypeCardCounts = (counts: ContactTypeTabCounts): ContactTypeCardCounts => {
+  return {
+    friends: counts.private,
+    groups: counts.group,
+    officials: counts.official,
+    deletedFriends: counts.former_friend
+  }
+}
+
+interface ContactTypeCountsState {
+  tabCounts: ContactTypeTabCounts
+  isLoading: boolean
+  isReady: boolean
+  updatedAt: number
+  setTabCounts: (counts: ContactTypeTabCounts) => void
+  syncFromContacts: (contacts: ContactInfo[]) => void
+  ensureLoaded: (options?: { force?: boolean }) => Promise<ContactTypeTabCounts>
+}
+
+export const useContactTypeCountsStore = create<ContactTypeCountsState>((set, get) => ({
+  tabCounts: { ...emptyTabCounts },
+  isLoading: false,
+  isReady: false,
+  updatedAt: 0,
+  setTabCounts: (counts) => {
+    const normalized = normalizeCounts(counts)
+    set({
+      tabCounts: normalized,
+      isReady: true,
+      updatedAt: Date.now()
+    })
+  },
+  syncFromContacts: (contacts) => {
+    const fromContacts = toContactTypeTabCountsFromContacts(contacts || [])
+    get().setTabCounts(fromContacts)
+  },
+  ensureLoaded: async (options) => {
+    if (!options?.force && get().isReady) {
+      return get().tabCounts
+    }
+    if (inflightPromise) {
+      return inflightPromise
+    }
+
+    set({ isLoading: true })
+    inflightPromise = (async () => {
+      try {
+        const result = await window.electronAPI.chat.getContactTypeCounts()
+        if (result?.success && result.counts) {
+          const normalized = normalizeCounts(result.counts)
+          set({
+            tabCounts: normalized,
+            isReady: true,
+            updatedAt: Date.now()
+          })
+          return normalized
+        }
+      } catch (error) {
+        console.error('加载联系人类型计数失败:', error)
+      }
+      return get().tabCounts
+    })().finally(() => {
+      inflightPromise = null
+      set({ isLoading: false })
+    })
+
+    return inflightPromise
+  }
+}))

src/types/electron.d.ts

@@ -13,6 +13,7 @@ export interface ElectronAPI {
     resizeToFitVideo: (videoWidth: number, videoHeight: number) => Promise<void>
     openImageViewerWindow: (imagePath: string, liveVideoPath?: string) => Promise<void>
     openChatHistoryWindow: (sessionId: string, messageId: number) => Promise<boolean>
+    openSessionChatWindow: (sessionId: string) => Promise<boolean>
   }
   config: {
     get: (key: string) => Promise<unknown>
@@ -48,9 +49,65 @@ export interface ElectronAPI {
     onDownloadProgress: (callback: (progress: number) => void) => () => void
     onUpdateAvailable: (callback: (info: { version: string; releaseNotes: string }) => void) => () => void
   }
+  notification: {
+    show: (data: { title: string; content: string; avatarUrl?: string; sessionId: string }) => Promise<{ success?: boolean; error?: string } | void>
+    close: () => Promise<void>
+    click: (sessionId: string) => void
+    ready: () => void
+    resize: (width: number, height: number) => void
+    onShow: (callback: (event: any, data: any) => void) => () => void
+  }
   log: {
     getPath: () => Promise<string>
     read: () => Promise<{ success: boolean; content?: string; error?: string }>
+    debug: (data: any) => void
+  }
+  diagnostics: {
+    getExportCardLogs: (options?: { limit?: number }) => Promise<{
+      logs: Array<{
+        id: string
+        ts: number
+        source: 'frontend' | 'main' | 'backend' | 'worker'
+        level: 'debug' | 'info' | 'warn' | 'error'
+        message: string
+        traceId?: string
+        stepId?: string
+        stepName?: string
+        status?: 'running' | 'done' | 'failed' | 'timeout'
+        durationMs?: number
+        data?: Record<string, unknown>
+      }>
+      activeSteps: Array<{
+        traceId: string
+        stepId: string
+        stepName: string
+        source: 'frontend' | 'main' | 'backend' | 'worker'
+        elapsedMs: number
+        stallMs: number
+        startedAt: number
+        lastUpdatedAt: number
+        message?: string
+      }>
+      summary: {
+        totalLogs: number
+        activeStepCount: number
+        errorCount: number
+        warnCount: number
+        timeoutCount: number
+        lastUpdatedAt: number
+      }
+    }>
+    clearExportCardLogs: () => Promise<{ success: boolean }>
+    exportExportCardLogs: (payload: {
+      filePath: string
+      frontendLogs?: unknown[]
+    }) => Promise<{
+      success: boolean
+      filePath?: string
+      summaryPath?: string
+      count?: number
+      error?: string
+    }>
   }
   dbPath: {
     autoDetect: () => Promise<{ success: boolean; path?: string; error?: string }>
@@ -74,7 +131,40 @@ export interface ElectronAPI {
   chat: {
     connect: () => Promise<{ success: boolean; error?: string }>
     getSessions: () => Promise<{ success: boolean; sessions?: ChatSession[]; error?: string }>
-    enrichSessionsContactInfo: (usernames: string[]) => Promise<{
+    getSessionStatuses: (usernames: string[]) => Promise<{
+      success: boolean
+      map?: Record<string, { isFolded?: boolean; isMuted?: boolean }>
+      error?: string
+    }>
+    getExportTabCounts: () => Promise<{
+      success: boolean
+      counts?: {
+        private: number
+        group: number
+        official: number
+        former_friend: number
+      }
+      error?: string
+    }>
+    getContactTypeCounts: () => Promise<{
+      success: boolean
+      counts?: {
+        private: number
+        group: number
+        official: number
+        former_friend: number
+      }
+      error?: string
+    }>
+    getSessionMessageCounts: (sessionIds: string[]) => Promise<{
+      success: boolean
+      counts?: Record<string, number>
+      error?: string
+    }>
+    enrichSessionsContactInfo: (
+      usernames: string[],
+      options?: { skipDisplayName?: boolean; onlyMissingAvatar?: boolean }
+    ) => Promise<{
       success: boolean
       contacts?: Record<string, { displayName?: string; avatarUrl?: string }>
       error?: string
@@ -88,6 +178,7 @@ export interface ElectronAPI {
     getLatestMessages: (sessionId: string, limit?: number) => Promise<{
       success: boolean
       messages?: Message[]
+      hasMore?: boolean
       error?: string
     }>
     getNewMessages: (sessionId: string, minTime: number, limit?: number) => Promise<{
@@ -95,6 +186,17 @@ export interface ElectronAPI {
       messages?: Message[]
       error?: string
     }>
+    getCachedMessages: (sessionId: string) => Promise<{
+      success: boolean
+      messages?: Message[]
+      error?: string
+    }>
+    clearCurrentAccountData: (options: { clearCache?: boolean; clearExports?: boolean }) => Promise<{
+      success: boolean
+      removedPaths?: string[]
+      warning?: string
+      error?: string
+    }>
     getContact: (username: string) => Promise<Contact | null>
     getContactAvatar: (username: string) => Promise<{ avatarUrl?: string; displayName?: string } | null>
     updateMessage: (sessionId: string, localId: number, createTime: number, newContent: string) => Promise<{ success: boolean; error?: string }>
@@ -124,6 +226,66 @@ export interface ElectronAPI {
       }
       error?: string
     }>
+    getSessionDetailFast: (sessionId: string) => Promise<{
+      success: boolean
+      detail?: {
+        wxid: string
+        displayName: string
+        remark?: string
+        nickName?: string
+        alias?: string
+        avatarUrl?: string
+        messageCount: number
+      }
+      error?: string
+    }>
+    getSessionDetailExtra: (sessionId: string) => Promise<{
+      success: boolean
+      detail?: {
+        firstMessageTime?: number
+        latestMessageTime?: number
+        messageTables: { dbName: string; tableName: string; count: number }[]
+      }
+      error?: string
+    }>
+    getExportSessionStats: (
+      sessionIds: string[],
+      options?: { includeRelations?: boolean; forceRefresh?: boolean; allowStaleCache?: boolean; preferAccurateSpecialTypes?: boolean }
+    ) => Promise<{
+      success: boolean
+      data?: Record<string, {
+        totalMessages: number
+        voiceMessages: number
+        imageMessages: number
+        videoMessages: number
+        emojiMessages: number
+        transferMessages: number
+        redPacketMessages: number
+        callMessages: number
+        firstTimestamp?: number
+        lastTimestamp?: number
+        privateMutualGroups?: number
+        groupMemberCount?: number
+        groupMyMessages?: number
+        groupActiveSpeakers?: number
+        groupMutualFriends?: number
+      }>
+      cache?: Record<string, {
+        updatedAt: number
+        stale: boolean
+        includeRelations: boolean
+        source: 'memory' | 'disk' | 'fresh'
+      }>
+      needsRefresh?: string[]
+      error?: string
+    }>
+    getGroupMyMessageCountHint: (chatroomId: string) => Promise<{
+      success: boolean
+      count?: number
+      updatedAt?: number
+      source?: 'memory' | 'disk'
+      error?: string
+    }>
     getImageData: (sessionId: string, msgId: string) => Promise<{ success: boolean; data?: string; error?: string }>
     getVoiceData: (sessionId: string, msgId: string, createTime?: number, serverId?: string | number) => Promise<{ success: boolean; data?: string; error?: string }>
     getAllVoiceMessages: (sessionId: string) => Promise<{ success: boolean; messages?: Message[]; error?: string }>
@@ -132,6 +294,8 @@ export interface ElectronAPI {
       images?: { imageMd5?: string; imageDatName?: string; createTime?: number }[]
       error?: string
     }>
+    getMessageDates: (sessionId: string) => Promise<{ success: boolean; dates?: string[]; error?: string }>
+    getMessageDateCounts: (sessionId: string) => Promise<{ success: boolean; counts?: Record<string, number>; error?: string }>
     resolveVoiceCache: (sessionId: string, msgId: string) => Promise<{ success: boolean; hasCache: boolean; data?: string }>
     getVoiceTranscript: (sessionId: string, msgId: string, createTime?: number) => Promise<{ success: boolean; transcript?: string; error?: string }>
     onVoiceTranscriptPartial: (callback: (payload: { msgId: string; text: string }) => void) => () => void
@@ -141,7 +305,7 @@ export interface ElectronAPI {
   }
 
   image: {
-    decrypt: (payload: { sessionId?: string; imageMd5?: string; imageDatName?: string; force?: boolean }) => Promise<{ success: boolean; localPath?: string; error?: string }>
+    decrypt: (payload: { sessionId?: string; imageMd5?: string; imageDatName?: string; force?: boolean }) => Promise<{ success: boolean; localPath?: string; liveVideoPath?: string; error?: string }>
     resolveCache: (payload: { sessionId?: string; imageMd5?: string; imageDatName?: string }) => Promise<{ success: boolean; localPath?: string; hasUpdate?: boolean; liveVideoPath?: string; error?: string }>
     preload: (payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }>) => Promise<boolean>
     onUpdateAvailable: (callback: (payload: { cacheKey: string; imageMd5?: string; imageDatName?: string }) => void) => () => void
@@ -253,9 +417,31 @@ export interface ElectronAPI {
         alias?: string
         remark?: string
         groupNickname?: string
+        isOwner?: boolean
       }>
       error?: string
     }>
+    getGroupMembersPanelData: (
+      chatroomId: string,
+      options?: { forceRefresh?: boolean; includeMessageCounts?: boolean }
+    ) => Promise<{
+      success: boolean
+      data?: Array<{
+        username: string
+        displayName: string
+        avatarUrl?: string
+        nickname?: string
+        alias?: string
+        remark?: string
+        groupNickname?: string
+        isOwner?: boolean
+        isFriend: boolean
+        messageCount: number
+      }>
+      fromCache?: boolean
+      updatedAt?: number
+      error?: string
+    }>
     getGroupMessageRanking: (chatroomId: string, limit?: number, startTime?: number, endTime?: number) => Promise<{
       success: boolean
       data?: Array<{
@@ -310,6 +496,30 @@ export interface ElectronAPI {
       data?: number[]
       error?: string
     }>
+    startAvailableYearsLoad: () => Promise<{
+      success: boolean
+      taskId?: string
+      reused?: boolean
+      snapshot?: {
+        years?: number[]
+        done: boolean
+        error?: string
+        canceled?: boolean
+        strategy?: 'cache' | 'native' | 'hybrid'
+        phase?: 'cache' | 'native' | 'scan' | 'done'
+        statusText?: string
+        nativeElapsedMs?: number
+        scanElapsedMs?: number
+        totalElapsedMs?: number
+        switched?: boolean
+        nativeTimedOut?: boolean
+      }
+      error?: string
+    }>
+    cancelAvailableYearsLoad: (taskId: string) => Promise<{
+      success: boolean
+      error?: string
+    }>
     generateReport: (year: number) => Promise<{
       success: boolean
       data?: {
@@ -372,6 +582,20 @@ export interface ElectronAPI {
           phrase: string
           count: number
         }>
+        snsStats?: {
+          totalPosts: number
+          typeCounts?: Record<string, number>
+          topLikers: { username: string; displayName: string; avatarUrl?: string; count: number }[]
+          topLiked: { username: string; displayName: string; avatarUrl?: string; count: number }[]
+        }
+        lostFriend: {
+          username: string
+          displayName: string
+          avatarUrl?: string
+          earlyCount: number
+          lateCount: number
+          periodDesc: string
+        } | null
       }
       error?: string
     }>
@@ -380,6 +604,21 @@ export interface ElectronAPI {
       dir?: string
       error?: string
     }>
+    onAvailableYearsProgress: (callback: (payload: {
+      taskId: string
+      years?: number[]
+      done: boolean
+      error?: string
+      canceled?: boolean
+      strategy?: 'cache' | 'native' | 'hybrid'
+      phase?: 'cache' | 'native' | 'scan' | 'done'
+      statusText?: string
+      nativeElapsedMs?: number
+      scanElapsedMs?: number
+      totalElapsedMs?: number
+      switched?: boolean
+      nativeTimedOut?: boolean
+    }) => void) => () => void
     onProgress: (callback: (payload: { status: string; progress: number }) => void) => () => void
   }
   dualReport: {
@@ -427,15 +666,26 @@ export interface ElectronAPI {
           myTopEmojiMd5?: string
           friendTopEmojiMd5?: string
           myTopEmojiUrl?: string
+          friendTopEmojiUrl?: string
+          myTopEmojiCount?: number
+          friendTopEmojiCount?: number
           topPhrases: Array<{ phrase: string; count: number }>
           myExclusivePhrases: Array<{ phrase: string; count: number }>
           friendExclusivePhrases: Array<{ phrase: string; count: number }>
           heatmap?: number[][]
           initiative?: { initiated: number; received: number }
-          response?: { avg: number; fastest: number; count: number }
+          response?: { avg: number; fastest: number; slowest?: number; count: number }
           monthly?: Record<string, number>
           streak?: { days: number; startDate: string; endDate: string }
         }
+        topPhrases: Array<{ phrase: string; count: number }>
+        myExclusivePhrases: Array<{ phrase: string; count: number }>
+        friendExclusivePhrases: Array<{ phrase: string; count: number }>
+        heatmap?: number[][]
+        initiative?: { initiated: number; received: number }
+        response?: { avg: number; fastest: number; slowest?: number; count: number }
+        monthly?: Record<string, number>
+        streak?: { days: number; startDate: string; endDate: string }
       }
       error?: string
     }>
@@ -455,6 +705,9 @@ export interface ElectronAPI {
       success: boolean
       successCount?: number
       failCount?: number
+      pendingSessionIds?: string[]
+      successSessionIds?: string[]
+      failedSessionIds?: string[]
       error?: string
     }>
     exportSession: (sessionId: string, outputPath: string, options: ExportOptions) => Promise<{
@@ -507,20 +760,24 @@ export interface ElectronAPI {
       error?: string
     }>
     debugResource: (url: string) => Promise<{ success: boolean; status?: number; headers?: any; error?: string }>
-    proxyImage: (payload: { url: string; key?: string | number }) => Promise<{ success: boolean; dataUrl?: string; error?: string }>
+    proxyImage: (payload: { url: string; key?: string | number }) => Promise<{ success: boolean; dataUrl?: string; videoPath?: string; error?: string }>
     downloadImage: (payload: { url: string; key?: string | number }) => Promise<{ success: boolean; data?: any; contentType?: string; error?: string }>
     exportTimeline: (options: {
       outputDir: string
-      format: 'json' | 'html'
+      format: 'json' | 'html' | 'arkmejson'
       usernames?: string[]
       keyword?: string
-      exportMedia?: boolean
+      exportImages?: boolean
+      exportLivePhotos?: boolean
+      exportVideos?: boolean
       startTime?: number
       endTime?: number
     }) => Promise<{ success: boolean; filePath?: string; postCount?: number; mediaCount?: number; error?: string }>
     onExportProgress: (callback: (payload: { current: number; total: number; status: string }) => void) => () => void
     selectExportDir: () => Promise<{ canceled: boolean; filePath?: string }>
     getSnsUsernames: () => Promise<{ success: boolean; usernames?: string[]; error?: string }>
+    getExportStatsFast: () => Promise<{ success: boolean; data?: { totalPosts: number; totalFriends: number; myPosts: number | null }; error?: string }>
+    getExportStats: () => Promise<{ success: boolean; data?: { totalPosts: number; totalFriends: number; myPosts: number | null }; error?: string }>
     installBlockDeleteTrigger: () => Promise<{ success: boolean; alreadyInstalled?: boolean; error?: string }>
     uninstallBlockDeleteTrigger: () => Promise<{ success: boolean; error?: string }>
     checkBlockDeleteTrigger: () => Promise<{ success: boolean; installed?: boolean; error?: string }>
@@ -540,7 +797,8 @@ export interface ElectronAPI {
 }
 
 export interface ExportOptions {
-  format: 'chatlab' | 'chatlab-jsonl' | 'json' | 'html' | 'txt' | 'excel' | 'weclone' | 'sql'
+  format: 'chatlab' | 'chatlab-jsonl' | 'json' | 'arkme-json' | 'html' | 'txt' | 'excel' | 'weclone' | 'sql'
+  contentType?: 'text' | 'voice' | 'image' | 'video' | 'emoji'
   dateRange?: { start: number; end: number } | null
   senderUsername?: string
   fileNameSuffix?: string
@@ -554,6 +812,7 @@ export interface ExportOptions {
   excelCompactColumns?: boolean
   txtColumns?: string[]
   sessionLayout?: 'shared' | 'per-session'
+  sessionNameWithTypePrefix?: boolean
   displayNamePreference?: 'group-nickname' | 'remark' | 'nickname'
   exportConcurrency?: number
 }
@@ -562,6 +821,7 @@ export interface ExportProgress {
   current: number
   total: number
   currentSession: string
+  currentSessionId?: string
   phase: 'preparing' | 'exporting' | 'exporting-media' | 'exporting-voice' | 'writing' | 'complete'
   phaseProgress?: number
   phaseTotal?: number

src/types/models.ts

@@ -7,6 +7,7 @@ export interface ChatSession {
   sortTimestamp: number  // 用于排序
   lastTimestamp: number  // 用于显示时间
   lastMsgType: number
+  messageCountHint?: number // 会话总消息数提示（若底层直接可取）
   displayName?: string
   avatarUrl?: string
   lastMsgSender?: string

src/vite-env.d.ts

@@ -1,22 +1 @@
 /// <reference types="vite/client" />
-
-interface Window {
-    electronAPI: {
-        // ... other methods ...
-        auth: {
-            hello: (message?: string) => Promise<{ success: boolean; error?: string }>
-            verifyEnabled: () => Promise<boolean>
-            unlock: (password: string) => Promise<{ success: boolean; error?: string }>
-            enableLock: (password: string) => Promise<{ success: boolean; error?: string }>
-            disableLock: (password: string) => Promise<{ success: boolean; error?: string }>
-            changePassword: (oldPassword: string, newPassword: string) => Promise<{ success: boolean; error?: string }>
-            setHelloSecret: (password: string) => Promise<{ success: boolean }>
-            clearHelloSecret: () => Promise<{ success: boolean }>
-            isLockMode: () => Promise<boolean>
-        }
-        // For brevity, using 'any' for other parts or properly importing types if available.
-        // In a real scenario, you'd likely want to keep the full interface definition consistent with preload.ts
-        // or import a shared type definition.
-        [key: string]: any
-    }
-}