Merge pull request #495 from hicccc77/dev

Dev
2026-03-24 23:06:51 +00:00 · 2026-03-20 00:03:20 +08:00
parent fee8c3f0ee f9c574ddd9
commit 4423c895c7
50 changed files with 8960 additions and 3079 deletions
--- a/.github/ISSUE_TEMPLATE/bug.yml
+++ b/.github/ISSUE_TEMPLATE/bug.yml
@@ -19,6 +19,17 @@ body:
          required: true
        - label: 我已阅读过相关文档
          required: true
+  - type: dropdown
+    id: platform
+    attributes:
+      label: 使用平台
+      description: 选择出现问题的平台
+      options:
+        - Windows
+        - macOS
+        - Linux
+    validations:
+      required: true
  - type: dropdown
    id: severity
    attributes:
@@ -76,9 +87,9 @@ body:
  - type: input
    id: os
    attributes:
-      label: 操作系统
-      description: 例如：Windows 11、macOS 14.2、Ubuntu 22.04
-      placeholder: Windows 11
+      label: 操作系统版本
+      description: 例如：Windows 11 24H2、macOS 15.0、Ubuntu 24.04
+      placeholder: Windows 11 24H2
    validations:
      required: true
  - type: input
--- a/.github/workflows/issue-auto-assign.yml
+++ b/.github/workflows/issue-auto-assign.yml
@@ -0,0 +1,84 @@
+name: Issue Auto Assign
+
+on:
+  issues:
+    types: [opened, edited, reopened]
+
+permissions:
+  issues: write
+
+jobs:
+  assign-by-platform:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Assign issue by selected platform
+        uses: actions/github-script@v7
+        env:
+          ASSIGNEE_WINDOWS: ${{ vars.ISSUE_ASSIGNEE_WINDOWS }}
+          ASSIGNEE_MACOS: ${{ vars.ISSUE_ASSIGNEE_MACOS }}
+          ASSIGNEE_LINUX: ${{ vars.ISSUE_ASSIGNEE_LINUX || 'H3CoF6' }}
+        with:
+          script: |
+            const issue = context.payload.issue;
+            if (!issue) {
+              core.info("No issue payload.");
+              return;
+            }
+
+            const labels = (issue.labels || []).map((l) => l.name);
+            if (!labels.includes("type: bug")) {
+              core.info("Skip non-bug issue.");
+              return;
+            }
+
+            const body = issue.body || "";
+            const match = body.match(/###\s*(?:使用平台|平台|Platform)\s*\r?\n+([^\r\n]+)/i);
+            if (!match) {
+              core.info("No platform field found in issue body.");
+              return;
+            }
+
+            const rawPlatform = match[1].trim().toLowerCase();
+            let platformKey = null;
+            if (rawPlatform.includes("windows")) platformKey = "windows";
+            if (rawPlatform.includes("macos")) platformKey = "macos";
+            if (rawPlatform.includes("linux")) platformKey = "linux";
+
+            if (!platformKey) {
+              core.info(`Unrecognized platform value: ${rawPlatform}`);
+              return;
+            }
+
+            const parseAssignees = (value) =>
+              (value || "")
+                .split(",")
+                .map((v) => v.trim())
+                .filter(Boolean);
+
+            const assigneeMap = {
+              windows: parseAssignees(process.env.ASSIGNEE_WINDOWS),
+              macos: parseAssignees(process.env.ASSIGNEE_MACOS),
+              linux: parseAssignees(process.env.ASSIGNEE_LINUX),
+            };
+
+            const candidates = assigneeMap[platformKey] || [];
+            if (candidates.length === 0) {
+              core.info(`No assignee configured for platform: ${platformKey}`);
+              return;
+            }
+
+            const existing = new Set((issue.assignees || []).map((a) => a.login));
+            const toAdd = candidates.filter((u) => !existing.has(u));
+            if (toAdd.length === 0) {
+              core.info("All configured assignees already assigned.");
+              return;
+            }
+
+            await github.rest.issues.addAssignees({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: issue.number,
+              assignees: toAdd,
+            });
+
+            core.info(`Assigned issue #${issue.number} to: ${toAdd.join(", ")}`);
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -49,20 +49,41 @@ jobs:
        run: |
          npx electron-builder --mac dmg --arm64 --publish always

-      - name: Update Release Notes
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  release-linux:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out git repository
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 24
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm ci
+
+      - name: Sync version with tag
        shell: bash
        run: |
-          cat <<EOF > release_notes.md
-          ## 更新日志
-          修复了一些已知问题
+          VERSION=${GITHUB_REF_NAME#v}
+          echo "Syncing package.json version to $VERSION"
+          npm version $VERSION --no-git-tag-version --allow-same-version

-          ## 查看更多日志/获取最新动态
-          [点击加入 Telegram 频道](https://t.me/weflow_cc)
-          EOF
+      - name: Build Frontend & Type Check
+        run: |
+          npx tsc
+          npx vite build

-          gh release edit "$GITHUB_REF_NAME" --notes-file release_notes.md
+      - name: Package and Publish Linux
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          npx electron-builder --linux --publish always

  release:
    runs-on: windows-latest
@@ -100,17 +121,66 @@ jobs:
        run: |
          npx electron-builder --publish always

-      - name: Update Release Notes
+  update-release-notes:
+    runs-on: ubuntu-latest
+    needs:
+      - release-mac-arm64
+      - release-linux
+      - release
+
+    steps:
+      - name: Generate release notes with platform download links
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        shell: bash
        run: |
-          cat <<EOF > release_notes.md
+          set -euo pipefail
+
+          TAG="$GITHUB_REF_NAME"
+          REPO="$GITHUB_REPOSITORY"
+          RELEASE_PAGE="https://github.com/$REPO/releases/tag/$TAG"
+
+          ASSETS_JSON="$(gh release view "$TAG" --repo "$REPO" --json assets)"
+
+          pick_asset() {
+            local pattern="$1"
+            echo "$ASSETS_JSON" | jq -r --arg p "$pattern" '[.assets[].name | select(test($p))][0] // ""'
+          }
+
+          WINDOWS_ASSET="$(pick_asset "\\.exe$")"
+          MAC_ASSET="$(pick_asset "\\.dmg$")"
+          LINUX_DEB_ASSET="$(pick_asset "\\.deb$")"
+          LINUX_TAR_ASSET="$(pick_asset "\\.tar\\.gz$")"
+          LINUX_PACMAN_ASSET="$(pick_asset "\\.pacman$")"
+
+          build_link() {
+            local name="$1"
+            if [ -n "$name" ]; then
+              echo "https://github.com/$REPO/releases/download/$TAG/$name"
+            fi
+          }
+
+          WINDOWS_URL="$(build_link "$WINDOWS_ASSET")"
+          MAC_URL="$(build_link "$MAC_ASSET")"
+          LINUX_DEB_URL="$(build_link "$LINUX_DEB_ASSET")"
+          LINUX_TAR_URL="$(build_link "$LINUX_TAR_ASSET")"
+          LINUX_PACMAN_URL="$(build_link "$LINUX_PACMAN_ASSET")"
+
+          cat > release_notes.md <<EOF
          ## 更新日志
          修复了一些已知问题

          ## 查看更多日志/获取最新动态
          [点击加入 Telegram 频道](https://t.me/weflow_cc)
+
+          ## 下载
+          - Windows （Win10+）: ${WINDOWS_URL:-$RELEASE_PAGE}
+          - macOS（M系列芯片）: ${MAC_URL:-$RELEASE_PAGE}
+          - Linux (.deb): ${LINUX_DEB_URL:-$RELEASE_PAGE}
+          - Linux (.tar.gz): ${LINUX_TAR_URL:-$RELEASE_PAGE}
+          - Linux (pacman): ${LINUX_PACMAN_URL:-$RELEASE_PAGE}
+
+          > 如果某个平台链接暂时未生成，可进入完整发布页查看全部资源：$RELEASE_PAGE
          EOF
-          
-          gh release edit "$GITHUB_REF_NAME" --notes-file release_notes.md
+
+          gh release edit "$TAG" --repo "$REPO" --notes-file release_notes.md
--- a/.gitignore
+++ b/.gitignore
@@ -62,9 +62,11 @@ server/
 chatlab-format.md
 *.bak
 AGENTS.md
+AGENT.md
 .claude/
 CLAUDE.md
 .agents/
 resources/wx_send
 概述.md
 pnpm-lock.yaml
+/pnpm-workspace.yaml
--- a/.npmrc
+++ b/.npmrc
@@ -1,3 +1,3 @@
 registry=https://registry.npmmirror.com
-electron_mirror=https://npmmirror.com/mirrors/electron/
-electron_builder_binaries_mirror=https://npmmirror.com/mirrors/electron-builder-binaries/
+electron-mirror=https://npmmirror.com/mirrors/electron/
+electron-builder-binaries-mirror=https://npmmirror.com/mirrors/electron-builder-binaries/
--- a/docs/HTTP-API.md
+++ b/docs/HTTP-API.md
@@ -1,6 +1,6 @@
-# WeFlow HTTP API 文档
+# WeFlow HTTP API / Push 文档

-WeFlow 提供本地 HTTP API，便于外部脚本或工具读取聊天记录、会话、联系人、群成员和导出的媒体文件。
+WeFlow 提供本地 HTTP API，便于外部脚本或工具读取聊天记录、会话、联系人、群成员和导出的媒体文件；也支持在检测到新消息后通过固定 SSE 地址主动推送消息事件。

 ## 启用方式

@@ -9,12 +9,15 @@ WeFlow 提供本地 HTTP API，便于外部脚本或工具读取聊天记录、
 - 默认监听地址：`127.0.0.1`
 - 默认端口：`5031`
 - 基础地址：`http://127.0.0.1:5031`
+- 可选开启 `主动推送`，检测到新收到的消息后会通过 `GET /api/v1/push/messages` 推送给 SSE 订阅端

 ## 接口列表

 - `GET /health`
 - `GET /api/v1/health`
+- `GET /api/v1/push/messages`
 - `GET /api/v1/messages`
+- `GET /api/v1/messages/new`
 - `GET /api/v1/sessions`
 - `GET /api/v1/contacts`
 - `GET /api/v1/group-members`
@@ -46,7 +49,50 @@ GET /api/v1/health

 ---

-## 2. 获取消息
+## 2. 主动推送
+
+通过 SSE 长连接接收新消息事件，端口与 HTTP API 共用。
+
+**请求**
+
+```http
+GET /api/v1/push/messages
+```
+
+### 说明
+
+- 需要先在设置页开启 `HTTP API 服务`
+- 同时需要开启 `主动推送`
+- 响应类型为 `text/event-stream`
+- 新消息事件名固定为 `message.new`
+- 建议接收端按 `messageKey` 去重
+
+### 事件字段
+
+- `event`
+- `sessionId`
+- `messageKey`
+- `avatarUrl`
+- `sourceName`
+- `groupName`（仅群聊）
+- `content`
+
+### 示例
+
+```bash
+curl -N "http://127.0.0.1:5031/api/v1/push/messages"
+```
+
+示例事件：
+
+```text
+event: message.new
+data: {"event":"message.new","sessionId":"xxx@chatroom","messageKey":"server:123456:1760000123:1760000123000:321:wxid_member:1","avatarUrl":"https://example.com/group.jpg","sourceName":"李四","groupName":"项目群","content":"[图片]"}
+```
+
+---
+
+## 3. 获取消息

 读取指定会话的消息，支持原始 JSON 和 ChatLab 格式。

@@ -183,7 +229,7 @@ curl "http://127.0.0.1:5031/api/v1/messages?talker=xxx@chatroom&media=1&image=1&

 ---

-## 3. 获取会话列表
+## 4. 获取会话列表

 **请求**

@@ -228,7 +274,7 @@ GET /api/v1/sessions

 ---

-## 4. 获取联系人列表
+## 5. 获取联系人列表

 **请求**

@@ -277,7 +323,7 @@ GET /api/v1/contacts

 ---

-## 5. 获取群成员列表
+## 6. 获取群成员列表

 返回群成员的 `wxid`、群昵称、备注、微信号等信息。

@@ -369,7 +415,7 @@ curl "http://127.0.0.1:5031/api/v1/group-members?chatroomId=xxx@chatroom&include

 ---

-## 6. 访问导出媒体
+## 7. 访问导出媒体

 通过消息接口启用 `media=1` 后，接口会先把图片、语音、视频、表情导出到本地缓存目录，再返回可访问的 HTTP 地址。

@@ -410,7 +456,7 @@ curl "http://127.0.0.1:5031/api/v1/media/xxx@chatroom/emojis/emoji_300.gif"

 ---

-## 7. 使用示例
+## 8. 使用示例

 ### PowerShell

@@ -453,7 +499,7 @@ print(members)

 ---

-## 8. 注意事项
+## 9. 注意事项

 1. API 仅监听本机 `127.0.0.1`，不对外网开放。
 2. 使用前需要先在 WeFlow 中完成数据库连接。
--- a/electron/exportWorker.ts
+++ b/electron/exportWorker.ts
@@ -0,0 +1,56 @@
+import { parentPort, workerData } from 'worker_threads'
+import type { ExportOptions } from './services/exportService'
+
+interface ExportWorkerConfig {
+  sessionIds: string[]
+  outputDir: string
+  options: ExportOptions
+  resourcesPath?: string
+  userDataPath?: string
+  logEnabled?: boolean
+}
+
+const config = workerData as ExportWorkerConfig
+process.env.WEFLOW_WORKER = '1'
+if (config.resourcesPath) {
+  process.env.WCDB_RESOURCES_PATH = config.resourcesPath
+}
+if (config.userDataPath) {
+  process.env.WEFLOW_USER_DATA_PATH = config.userDataPath
+  process.env.WEFLOW_CONFIG_CWD = config.userDataPath
+}
+process.env.WEFLOW_PROJECT_NAME = process.env.WEFLOW_PROJECT_NAME || 'WeFlow'
+
+async function run() {
+  const [{ wcdbService }, { exportService }] = await Promise.all([
+    import('./services/wcdbService'),
+    import('./services/exportService')
+  ])
+
+  wcdbService.setPaths(config.resourcesPath || '', config.userDataPath || '')
+  wcdbService.setLogEnabled(config.logEnabled === true)
+
+  const result = await exportService.exportSessions(
+    Array.isArray(config.sessionIds) ? config.sessionIds : [],
+    String(config.outputDir || ''),
+    config.options || { format: 'json' },
+    (progress) => {
+      parentPort?.postMessage({
+        type: 'export:progress',
+        data: progress
+      })
+    }
+  )
+
+  parentPort?.postMessage({
+    type: 'export:result',
+    data: result
+  })
+}
+
+run().catch((error) => {
+  parentPort?.postMessage({
+    type: 'export:error',
+    error: String(error)
+  })
+})
--- a/electron/main.ts
+++ b/electron/main.ts
@@ -1,6 +1,7 @@
 import './preload-env'
 import { app, BrowserWindow, ipcMain, nativeTheme, session, Tray, Menu, nativeImage } from 'electron'
 import { Worker } from 'worker_threads'
+import { randomUUID } from 'crypto'
 import { join, dirname } from 'path'
 import { autoUpdater } from 'electron-updater'
 import { readFile, writeFile, mkdir, rm, readdir } from 'fs/promises'
@@ -16,6 +17,7 @@ import { groupAnalyticsService } from './services/groupAnalyticsService'
 import { annualReportService } from './services/annualReportService'
 import { exportService, ExportOptions, ExportProgress } from './services/exportService'
 import { KeyService } from './services/keyService'
+import { KeyServiceLinux } from './services/keyServiceLinux'
 import { KeyServiceMac } from './services/keyServiceMac'
 import { voiceTranscribeService } from './services/voiceTranscribeService'
 import { videoService } from './services/videoService'
@@ -27,6 +29,7 @@ import { cloudControlService } from './services/cloudControlService'

 import { destroyNotificationWindow, registerNotificationHandlers, showNotification } from './windows/notificationWindow'
 import { httpService } from './services/httpService'
+import { messagePushService } from './services/messagePushService'


 // 配置自动更新
@@ -89,15 +92,28 @@ let onboardingWindow: BrowserWindow | null = null
 let splashWindow: BrowserWindow | null = null
 const sessionChatWindows = new Map<string, BrowserWindow>()
 const sessionChatWindowSources = new Map<string, 'chat' | 'export'>()
-const keyService = process.platform === 'darwin' 
-  ? new KeyServiceMac() as any 
-  : new KeyService()
+
+let keyService: any
+if (process.platform === 'darwin') {
+  keyService = new KeyServiceMac()
+} else if (process.platform === 'linux') {
+  // const { KeyServiceLinux } = require('./services/keyServiceLinux')
+  // keyService = new KeyServiceLinux()
+
+  import('./services/keyServiceLinux').then(({ KeyServiceLinux }) => {
+    keyService = new KeyServiceLinux();
+  });
+
+} else {
+  keyService = new KeyService()
+}

 let mainWindowReady = false
 let shouldShowMain = true
 let isAppQuitting = false
 let tray: Tray | null = null
 let isClosePromptVisible = false
+const chatHistoryPayloadStore = new Map<string, { sessionId: string; title?: string; recordList: any[] }>()

 type WindowCloseBehavior = 'ask' | 'tray' | 'quit'

@@ -272,12 +288,18 @@ const requestMainWindowCloseConfirmation = (win: BrowserWindow): void => {
 function createWindow(options: { autoShow?: boolean } = {}) {
  // 获取图标路径 - 打包后在 resources 目录
  const { autoShow = true } = options
+  let iconName = 'icon.ico';
+  if (process.platform === 'linux') {
+    iconName = 'icon.png';
+  } else if (process.platform === 'darwin') {
+    iconName = 'icon.icns';
+  }
+
  const isDev = !!process.env.VITE_DEV_SERVER_URL
+
  const iconPath = isDev
-    ? join(__dirname, '../public/icon.ico')
-    : (process.platform === 'darwin' 
-        ? join(process.resourcesPath, 'icon.icns')
-        : join(process.resourcesPath, 'icon.ico'))
+      ? join(__dirname, `../public/${iconName}`)
+      : join(process.resourcesPath, iconName);

  const win = new BrowserWindow({
    width: 1400,
@@ -749,6 +771,14 @@ function createImageViewerWindow(imagePath: string, liveVideoPath?: string) {
 * 创建独立的聊天记录窗口
 */
 function createChatHistoryWindow(sessionId: string, messageId: number) {
+  return createChatHistoryRouteWindow(`/chat-history/${sessionId}/${messageId}`)
+}
+
+function createChatHistoryPayloadWindow(payloadId: string) {
+  return createChatHistoryRouteWindow(`/chat-history-inline/${payloadId}`)
+}
+
+function createChatHistoryRouteWindow(route: string) {
  const isDev = !!process.env.VITE_DEV_SERVER_URL
  const iconPath = isDev
    ? join(__dirname, '../public/icon.ico')
@@ -783,7 +813,7 @@ function createChatHistoryWindow(sessionId: string, messageId: number) {
  })

  if (process.env.VITE_DEV_SERVER_URL) {
-    win.loadURL(`${process.env.VITE_DEV_SERVER_URL}#/chat-history/${sessionId}/${messageId}`)
+    win.loadURL(`${process.env.VITE_DEV_SERVER_URL}#${route}`)

    win.webContents.on('before-input-event', (event, input) => {
      if (input.key === 'F12' || (input.control && input.shift && input.key === 'I')) {
@@ -797,7 +827,7 @@ function createChatHistoryWindow(sessionId: string, messageId: number) {
    })
  } else {
    win.loadFile(join(__dirname, '../dist/index.html'), {
-      hash: `/chat-history/${sessionId}/${messageId}`
+      hash: route
    })
  }

@@ -965,11 +995,14 @@ function registerIpcHandlers() {
  })

  ipcMain.handle('config:set', async (_, key: string, value: any) => {
-    return configService?.set(key as any, value)
+    const result = configService?.set(key as any, value)
+    void messagePushService.handleConfigChanged(key)
+    return result
  })

  ipcMain.handle('config:clear', async () => {
    configService?.clear()
+    messagePushService.handleConfigCleared()
    return true
  })

@@ -1237,6 +1270,23 @@ function registerIpcHandlers() {
    return true
  })

+  ipcMain.handle('window:openChatHistoryPayloadWindow', (_, payload: { sessionId: string; title?: string; recordList: any[] }) => {
+    const payloadId = randomUUID()
+    chatHistoryPayloadStore.set(payloadId, {
+      sessionId: String(payload?.sessionId || '').trim(),
+      title: String(payload?.title || '').trim() || '聊天记录',
+      recordList: Array.isArray(payload?.recordList) ? payload.recordList : []
+    })
+    createChatHistoryPayloadWindow(payloadId)
+    return true
+  })
+
+  ipcMain.handle('window:getChatHistoryPayload', (_, payloadId: string) => {
+    const payload = chatHistoryPayloadStore.get(String(payloadId || '').trim())
+    if (!payload) return { success: false, error: '聊天记录载荷不存在或已失效' }
+    return { success: true, payload }
+  })
+
  // 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, options?: OpenSessionChatWindowOptions) => {
    const win = createSessionChatWindow(sessionId, options)
@@ -1611,7 +1661,7 @@ function registerIpcHandlers() {

  ipcMain.handle('chat:getVoiceTranscript', async (event, sessionId: string, msgId: string, createTime?: number) => {
    return chatService.getVoiceTranscript(sessionId, msgId, createTime, (text) => {
-      event.sender.send('chat:voiceTranscriptPartial', { msgId, text })
+      event.sender.send('chat:voiceTranscriptPartial', { sessionId, msgId, createTime, text })
    })
  })

@@ -1623,10 +1673,6 @@ function registerIpcHandlers() {
    return chatService.searchMessages(keyword, sessionId, limit, offset, beginTimestamp, endTimestamp)
  })

-  ipcMain.handle('chat:execQuery', async (_, kind: string, path: string | null, sql: string) => {
-    return chatService.execQuery(kind, path, sql)
-  })
-
  ipcMain.handle('sns:getTimeline', async (_, limit: number, offset: number, usernames?: string[], keyword?: string, startTime?: number, endTime?: number) => {
    return snsService.getTimeline(limit, offset, usernames, keyword, startTime, endTime)
  })
@@ -1838,7 +1884,83 @@ function registerIpcHandlers() {
      }
    }

-    return exportService.exportSessions(sessionIds, outputDir, options, onProgress)
+    const runMainFallback = async (reason: string) => {
+      console.warn(`[fallback-export-main] ${reason}`)
+      return exportService.exportSessions(sessionIds, outputDir, options, onProgress)
+    }
+
+    const cfg = configService || new ConfigService()
+    configService = cfg
+    const logEnabled = cfg.get('logEnabled')
+    const resourcesPath = app.isPackaged
+      ? join(process.resourcesPath, 'resources')
+      : join(app.getAppPath(), 'resources')
+    const userDataPath = app.getPath('userData')
+    const workerPath = join(__dirname, 'exportWorker.js')
+
+    const runWorker = async () => {
+      return await new Promise<any>((resolve, reject) => {
+        const worker = new Worker(workerPath, {
+          workerData: {
+            sessionIds,
+            outputDir,
+            options,
+            resourcesPath,
+            userDataPath,
+            logEnabled
+          }
+        })
+
+        let settled = false
+        const finalizeResolve = (value: any) => {
+          if (settled) return
+          settled = true
+          worker.removeAllListeners()
+          void worker.terminate()
+          resolve(value)
+        }
+        const finalizeReject = (error: Error) => {
+          if (settled) return
+          settled = true
+          worker.removeAllListeners()
+          void worker.terminate()
+          reject(error)
+        }
+
+        worker.on('message', (msg: any) => {
+          if (msg && msg.type === 'export:progress') {
+            onProgress(msg.data as ExportProgress)
+            return
+          }
+          if (msg && msg.type === 'export:result') {
+            finalizeResolve(msg.data)
+            return
+          }
+          if (msg && msg.type === 'export:error') {
+            finalizeReject(new Error(String(msg.error || '导出 Worker 执行失败')))
+          }
+        })
+
+        worker.on('error', (error) => {
+          finalizeReject(error instanceof Error ? error : new Error(String(error)))
+        })
+
+        worker.on('exit', (code) => {
+          if (settled) return
+          if (code === 0) {
+            finalizeResolve({ success: false, successCount: 0, failCount: 0, error: '导出 Worker 未返回结果' })
+          } else {
+            finalizeReject(new Error(`导出 Worker 异常退出: ${code}`))
+          }
+        })
+      })
+    }
+
+    try {
+      return await runWorker()
+    } catch (error) {
+      return runMainFallback(error instanceof Error ? error.message : String(error))
+    }
  })

  ipcMain.handle('export:exportSession', async (_, sessionId: string, outputPath: string, options: ExportOptions) => {
@@ -2508,6 +2630,10 @@ app.whenReady().then(async () => {
  // 注册 IPC 处理器
  updateSplashProgress(25, '正在初始化...')
  registerIpcHandlers()
+  chatService.addDbMonitorListener((type, json) => {
+    messagePushService.handleDbMonitorChange(type, json)
+  })
+  messagePushService.start()
  await delay(200)

  // 检查配置状态
@@ -2518,12 +2644,20 @@ app.whenReady().then(async () => {
  updateSplashProgress(30, '正在加载界面...')
  mainWindow = createWindow({ autoShow: false })

-  // 初始化系统托盘图标（与其他窗口 icon 路径逻辑保持一致）
-  const resolvedTrayIcon = process.platform === 'win32'
-    ? join(__dirname, '../public/icon.ico')
-    : (process.platform === 'darwin'
-        ? join(process.resourcesPath, 'icon.icns')
-        : join(process.resourcesPath, 'icon.ico'))
+  let iconName = 'icon.ico';
+  if (process.platform === 'linux') {
+    iconName = 'icon.png';
+  } else if (process.platform === 'darwin') {
+    iconName = 'icon.icns';
+  }
+
+  const isDev = !!process.env.VITE_DEV_SERVER_URL
+
+  const resolvedTrayIcon = isDev
+      ? join(__dirname, `../public/${iconName}`)
+      : join(process.resourcesPath, iconName);
+
+
  try {
    tray = new Tray(resolvedTrayIcon)
    tray.setToolTip('WeFlow')
--- a/electron/preload.ts
+++ b/electron/preload.ts
@@ -113,6 +113,10 @@ contextBridge.exposeInMainWorld('electronAPI', {
      ipcRenderer.invoke('window:openImageViewerWindow', imagePath, liveVideoPath),
    openChatHistoryWindow: (sessionId: string, messageId: number) =>
      ipcRenderer.invoke('window:openChatHistoryWindow', sessionId, messageId),
+    openChatHistoryPayloadWindow: (payload: { sessionId: string; title?: string; recordList: any[] }) =>
+      ipcRenderer.invoke('window:openChatHistoryPayloadWindow', payload),
+    getChatHistoryPayload: (payloadId: string) =>
+      ipcRenderer.invoke('window:getChatHistoryPayload', payloadId),
    openSessionChatWindow: (
      sessionId: string,
      options?: {
@@ -215,13 +219,11 @@ contextBridge.exposeInMainWorld('electronAPI', {
    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) => {
-      const listener = (_: any, payload: { msgId: string; text: string }) => callback(payload)
+    onVoiceTranscriptPartial: (callback: (payload: { sessionId?: string; msgId: string; createTime?: number; text: string }) => void) => {
+      const listener = (_: any, payload: { sessionId?: string; msgId: string; createTime?: number; text: string }) => callback(payload)
      ipcRenderer.on('chat:voiceTranscriptPartial', listener)
      return () => ipcRenderer.removeListener('chat:voiceTranscriptPartial', listener)
    },
-    execQuery: (kind: string, path: string | null, sql: string) =>
-      ipcRenderer.invoke('chat:execQuery', kind, path, sql),
    getContacts: () => ipcRenderer.invoke('chat:getContacts'),
    getMessage: (sessionId: string, localId: number) =>
      ipcRenderer.invoke('chat:getMessage', sessionId, localId),
@@ -244,12 +246,14 @@ contextBridge.exposeInMainWorld('electronAPI', {
    preload: (payloads: Array<{ sessionId?: string; imageMd5?: string; imageDatName?: string }>) =>
      ipcRenderer.invoke('image:preload', payloads),
    onUpdateAvailable: (callback: (payload: { cacheKey: string; imageMd5?: string; imageDatName?: string }) => void) => {
-      ipcRenderer.on('image:updateAvailable', (_, payload) => callback(payload))
-      return () => ipcRenderer.removeAllListeners('image:updateAvailable')
+      const listener = (_: unknown, payload: { cacheKey: string; imageMd5?: string; imageDatName?: string }) => callback(payload)
+      ipcRenderer.on('image:updateAvailable', listener)
+      return () => ipcRenderer.removeListener('image:updateAvailable', listener)
    },
    onCacheResolved: (callback: (payload: { cacheKey: string; imageMd5?: string; imageDatName?: string; localPath: string }) => void) => {
-      ipcRenderer.on('image:cacheResolved', (_, payload) => callback(payload))
-      return () => ipcRenderer.removeAllListeners('image:cacheResolved')
+      const listener = (_: unknown, payload: { cacheKey: string; imageMd5?: string; imageDatName?: string; localPath: string }) => callback(payload)
+      ipcRenderer.on('image:cacheResolved', listener)
+      return () => ipcRenderer.removeListener('image:cacheResolved', listener)
    }
  },

@@ -352,7 +356,20 @@ 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; currentSessionId?: string; phase: string }) => void) => {
+    onProgress: (callback: (payload: {
+      current: number
+      total: number
+      currentSession: string
+      currentSessionId?: string
+      phase: string
+      phaseProgress?: number
+      phaseTotal?: number
+      phaseLabel?: string
+      collectedMessages?: number
+      exportedMessages?: number
+      estimatedTotalMessages?: number
+      writtenFiles?: number
+    }) => void) => {
      ipcRenderer.on('export:progress', (_, payload) => callback(payload))
      return () => ipcRenderer.removeAllListeners('export:progress')
    }
--- a/electron/services/analyticsService.ts
+++ b/electron/services/analyticsService.ts
@@ -68,29 +68,14 @@ class AnalyticsService {
    return new Set(this.getExcludedUsernamesList())
  }

-  private escapeSqlValue(value: string): string {
-    return value.replace(/'/g, "''")
-  }
-
  private async getAliasMap(usernames: string[]): Promise<Record<string, string>> {
    const map: Record<string, string> = {}
    if (usernames.length === 0) return map

-    // C++ 层不支持参数绑定，直接内联转义后的字符串值
-    const chunkSize = 200
-    for (let i = 0; i < usernames.length; i += chunkSize) {
-      const chunk = usernames.slice(i, i + chunkSize)
-      const inList = chunk.map((u) => `'${this.escapeSqlValue(u)}'`).join(',')
-      const sql = `SELECT username, alias FROM contact WHERE username IN (${inList})`
-      const result = await wcdbService.execQuery('contact', null, sql)
-      if (!result.success || !result.rows) continue
-      for (const row of result.rows as Record<string, any>[]) {
-        const username = row.username || ''
-        const alias = row.alias || ''
-        if (username && alias) {
-          map[username] = alias
-        }
-      }
+    const result = await wcdbService.getContactAliasMap(usernames)
+    if (!result.success || !result.map) return map
+    for (const [username, alias] of Object.entries(result.map)) {
+      if (username && alias) map[username] = alias
    }

    return map
--- a/electron/services/annualReportService.ts
+++ b/electron/services/annualReportService.ts
@@ -278,16 +278,16 @@ class AnnualReportService {
      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) {
+    const result = await wcdbService.getMessageTableColumns(dbPath, tableName)
+    if (!result.success || !Array.isArray(result.columns) || result.columns.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()
+    for (const columnName of result.columns) {
+      const name = String(columnName || '').trim().toLowerCase()
      if (name) columns.add(name)
    }

@@ -309,10 +309,11 @@ class AnnualReportService {
    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 result = await wcdbService.getMessageTableTimeRange(dbPath, tableName)
+      if (!result.success || !result.data) return null
+      const row = result.data as Record<string, any>
+      const actualColumn = String(row.column || '').trim().toLowerCase()
+      if (column && actualColumn && column.toLowerCase() !== actualColumn) return null
      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 }
--- a/electron/services/chatService.ts
+++ b/electron/services/chatService.ts
--- a/electron/services/cloudControlService.ts
+++ b/electron/services/cloudControlService.ts
@@ -14,6 +14,7 @@ class CloudControlService {
  private deviceId: string = ''
  private timer: NodeJS.Timeout | null = null
  private pages: Set<string> = new Set()
+  private platformVersionCache: string | null = null

  async init() {
    this.deviceId = this.getDeviceId()
@@ -47,7 +48,12 @@ class CloudControlService {
  }

  private getPlatformVersion(): string {
+    if (this.platformVersionCache) {
+      return this.platformVersionCache
+    }
+
    const os = require('os')
+    const fs = require('fs')
    const platform = process.platform

    if (platform === 'win32') {
@@ -59,21 +65,79 @@ class CloudControlService {

      // Windows 11 是 10.0.22000+，且主版本必须是 10.0
      if (major === 10 && minor === 0 && build >= 22000) {
-        return 'Windows 11'
+        this.platformVersionCache = 'Windows 11'
+        return this.platformVersionCache
      } else if (major === 10) {
-        return 'Windows 10'
+        this.platformVersionCache = 'Windows 10'
+        return this.platformVersionCache
      }
-      return `Windows ${release}`
+      this.platformVersionCache = `Windows ${release}`
+      return this.platformVersionCache
    }

    if (platform === 'darwin') {
      // `os.release()` returns Darwin kernel version (e.g. 25.3.0),
      // while cloud reporting expects the macOS product version (e.g. 26.3).
      const macVersion = typeof process.getSystemVersion === 'function' ? process.getSystemVersion() : os.release()
-      return `macOS ${macVersion}`
+      this.platformVersionCache = `macOS ${macVersion}`
+      return this.platformVersionCache
    }

-    return platform
+    if (platform === 'linux') {
+      try {
+        const osReleasePaths = ['/etc/os-release', '/usr/lib/os-release']
+        for (const filePath of osReleasePaths) {
+          if (!fs.existsSync(filePath)) {
+            continue
+          }
+
+          const content = fs.readFileSync(filePath, 'utf8')
+          const values: Record<string, string> = {}
+
+          for (const line of content.split('\n')) {
+            const trimmed = line.trim()
+            if (!trimmed || trimmed.startsWith('#')) {
+              continue
+            }
+
+            const separatorIndex = trimmed.indexOf('=')
+            if (separatorIndex <= 0) {
+              continue
+            }
+
+            const key = trimmed.slice(0, separatorIndex)
+            let value = trimmed.slice(separatorIndex + 1).trim()
+            if ((value.startsWith('"') && value.endsWith('"')) || (value.startsWith('\'') && value.endsWith('\''))) {
+              value = value.slice(1, -1)
+            }
+            values[key] = value
+          }
+
+          if (values.PRETTY_NAME) {
+            this.platformVersionCache = values.PRETTY_NAME
+            return this.platformVersionCache
+          }
+
+          if (values.NAME && values.VERSION_ID) {
+            this.platformVersionCache = `${values.NAME} ${values.VERSION_ID}`
+            return this.platformVersionCache
+          }
+
+          if (values.NAME) {
+            this.platformVersionCache = values.NAME
+            return this.platformVersionCache
+          }
+        }
+      } catch (error) {
+        console.warn('[CloudControl] Failed to detect Linux distro version:', error)
+      }
+
+      this.platformVersionCache = `Linux ${os.release()}`
+      return this.platformVersionCache
+    }
+
+    this.platformVersionCache = platform
+    return this.platformVersionCache
  }

  recordPage(pageName: string) {
--- a/electron/services/config.ts
+++ b/electron/services/config.ts
@@ -16,7 +16,7 @@ interface ConfigSchema {
  imageXorKey: number
  imageAesKey: string
  wxidConfigs: Record<string, { decryptKey?: string; imageXorKey?: number; imageAesKey?: string; updatedAt?: number }>
-
+  exportPath?: string;
  // 缓存相关
  cachePath: string
  lastOpenedDb: string
@@ -50,6 +50,7 @@ interface ConfigSchema {
  notificationPosition: 'top-right' | 'top-left' | 'bottom-right' | 'bottom-left' | 'top-center'
  notificationFilterMode: 'all' | 'whitelist' | 'blacklist'
  notificationFilterList: string[]
+  messagePushEnabled: boolean
  windowCloseBehavior: 'ask' | 'tray' | 'quit'
  wordCloudExcludeWords: string[]
 }
@@ -83,44 +84,71 @@ export class ConfigService {
      return ConfigService.instance
    }
    ConfigService.instance = this
-    this.store = new Store<ConfigSchema>({
+    const defaults: ConfigSchema = {
+      dbPath: '',
+      decryptKey: '',
+      myWxid: '',
+      onboardingDone: false,
+      imageXorKey: 0,
+      imageAesKey: '',
+      wxidConfigs: {},
+      cachePath: '',
+      lastOpenedDb: '',
+      lastSession: '',
+      theme: 'system',
+      themeId: 'cloud-dancer',
+      language: 'zh-CN',
+      logEnabled: false,
+      llmModelPath: '',
+      whisperModelName: 'base',
+      whisperModelDir: '',
+      whisperDownloadSource: 'tsinghua',
+      autoTranscribeVoice: false,
+      transcribeLanguages: ['zh'],
+      exportDefaultConcurrency: 4,
+      analyticsExcludedUsernames: [],
+      authEnabled: false,
+      authPassword: '',
+      authUseHello: false,
+      authHelloSecret: '',
+      ignoredUpdateVersion: '',
+      notificationEnabled: true,
+      notificationPosition: 'top-right',
+      notificationFilterMode: 'all',
+      notificationFilterList: [],
+      messagePushEnabled: false,
+      windowCloseBehavior: 'ask',
+      wordCloudExcludeWords: []
+    }
+
+    const storeOptions: any = {
      name: 'WeFlow-config',
-      defaults: {
-        dbPath: '',
-        decryptKey: '',
-        myWxid: '',
-        onboardingDone: false,
-        imageXorKey: 0,
-        imageAesKey: '',
-        wxidConfigs: {},
-        cachePath: '',
-        lastOpenedDb: '',
-        lastSession: '',
-        theme: 'system',
-        themeId: 'cloud-dancer',
-        language: 'zh-CN',
-        logEnabled: false,
-        llmModelPath: '',
-        whisperModelName: 'base',
-        whisperModelDir: '',
-        whisperDownloadSource: 'tsinghua',
-        autoTranscribeVoice: false,
-        transcribeLanguages: ['zh'],
-        exportDefaultConcurrency: 4,
-        analyticsExcludedUsernames: [],
-        authEnabled: false,
-        authPassword: '',
-        authUseHello: false,
-        authHelloSecret: '',
-        ignoredUpdateVersion: '',
-        notificationEnabled: true,
-        notificationPosition: 'top-right',
-        notificationFilterMode: 'all',
-        notificationFilterList: [],
-        windowCloseBehavior: 'ask',
-        wordCloudExcludeWords: []
+      defaults,
+      projectName: String(process.env.WEFLOW_PROJECT_NAME || 'WeFlow').trim() || 'WeFlow'
+    }
+    const runningInWorker = process.env.WEFLOW_WORKER === '1'
+    if (runningInWorker) {
+      const cwd = String(process.env.WEFLOW_CONFIG_CWD || process.env.WEFLOW_USER_DATA_PATH || '').trim()
+      if (cwd) {
+        storeOptions.cwd = cwd
      }
-    })
+    }
+
+    try {
+      this.store = new Store<ConfigSchema>(storeOptions)
+    } catch (error) {
+      const message = String((error as Error)?.message || error || '')
+      if (message.includes('projectName')) {
+        const fallbackOptions = {
+          ...storeOptions,
+          projectName: 'WeFlow',
+          cwd: storeOptions.cwd || process.env.WEFLOW_CONFIG_CWD || process.env.WEFLOW_USER_DATA_PATH || process.cwd()
+        }
+        this.store = new Store<ConfigSchema>(fallbackOptions)
+      } else {
+        throw error
+      }
+    }
    this.migrateAuthFields()
  }

--- a/electron/services/exportService.ts
+++ b/electron/services/exportService.ts
--- a/electron/services/groupAnalyticsService.ts
+++ b/electron/services/groupAnalyticsService.ts
@@ -230,10 +230,9 @@ class GroupAnalyticsService {
    }

    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])
+      const roomExt = await wcdbService.getChatRoomExtBuffer(chatroomId)
+      if (roomExt.success && roomExt.extBuffer) {
+        const owner = tryResolve({ ext_buffer: roomExt.extBuffer })
        if (owner) return owner
      }
    } catch {
@@ -273,13 +272,12 @@ class GroupAnalyticsService {
    }

    try {
-      const sql = 'SELECT ext_buffer FROM chat_room WHERE username = ? LIMIT 1'
-      const result = await wcdbService.execQuery('contact', null, sql, [chatroomId])
-      if (!result.success || !result.rows || result.rows.length === 0) {
+      const result = await wcdbService.getChatRoomExtBuffer(chatroomId)
+      if (!result.success || !result.extBuffer) {
        return nicknameMap
      }

-      const extBuffer = this.decodeExtBuffer((result.rows[0] as any).ext_buffer)
+      const extBuffer = this.decodeExtBuffer(result.extBuffer)
      if (!extBuffer) return nicknameMap
      this.mergeGroupNicknameEntries(nicknameMap, this.parseGroupNicknamesFromExtBuffer(extBuffer, candidates).entries())
      return nicknameMap
@@ -583,19 +581,9 @@ class GroupAnalyticsService {
      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>[])
+      const result = await wcdbService.getContactsCompact(batch)
+      if (!result.success || !result.contacts) continue
+      appendContactsToLookup(result.contacts as Record<string, unknown>[])
    }
    return lookup
  }
@@ -774,31 +762,111 @@ class GroupAnalyticsService {
    return ''
  }

+  private normalizeCursorTimestamp(value: number): number {
+    if (!Number.isFinite(value) || value <= 0) return 0
+    const normalized = Math.floor(value)
+    return normalized > 10000000000 ? Math.floor(normalized / 1000) : normalized
+  }
+
+  private extractRowSenderUsername(row: Record<string, any>): string {
+    const candidates = [
+      row.sender_username,
+      row.senderUsername,
+      row.sender,
+      row.WCDB_CT_sender_username
+    ]
+    for (const candidate of candidates) {
+      const value = String(candidate || '').trim()
+      if (value) return value
+    }
+    for (const [key, value] of Object.entries(row)) {
+      const normalizedKey = key.toLowerCase()
+      if (
+        normalizedKey === 'sender_username' ||
+        normalizedKey === 'senderusername' ||
+        normalizedKey === 'sender' ||
+        normalizedKey === 'wcdb_ct_sender_username'
+      ) {
+        const normalizedValue = String(value || '').trim()
+        if (normalizedValue) return normalizedValue
+      }
+    }
+    return ''
+  }
+
+  private parseSingleMessageRow(row: Record<string, any>): Message | null {
+    try {
+      const mapped = chatService.mapRowsToMessagesForApi([row])
+      return Array.isArray(mapped) && mapped.length > 0 ? mapped[0] : null
+    } catch {
+      return null
+    }
+  }
+
+  private async openMemberMessageCursor(
+    chatroomId: string,
+    batchSize: number,
+    ascending: boolean,
+    startTime: number,
+    endTime: number
+  ): Promise<{ success: boolean; cursor?: number; error?: string }> {
+    const beginTimestamp = this.normalizeCursorTimestamp(startTime)
+    const endTimestamp = this.normalizeCursorTimestamp(endTime)
+    const liteResult = await wcdbService.openMessageCursorLite(chatroomId, batchSize, ascending, beginTimestamp, endTimestamp)
+    if (liteResult.success && liteResult.cursor) return liteResult
+    return wcdbService.openMessageCursor(chatroomId, batchSize, ascending, beginTimestamp, endTimestamp)
+  }
+
  private async collectMessagesByMember(
    chatroomId: string,
    memberUsername: string,
    startTime: number,
    endTime: number
  ): Promise<{ success: boolean; data?: Message[]; error?: string }> {
-    const batchSize = 500
+    const batchSize = 800
    const matchedMessages: Message[] = []
-    let offset = 0
+    const senderMatchCache = new Map<string, boolean>()
+    const matchesTargetSender = (sender: string | null | undefined): boolean => {
+      const key = String(sender || '').trim().toLowerCase()
+      if (!key) return false
+      const cached = senderMatchCache.get(key)
+      if (typeof cached === 'boolean') return cached
+      const matched = this.isSameAccountIdentity(memberUsername, sender)
+      senderMatchCache.set(key, matched)
+      return matched
+    }

-    while (true) {
-      const batch = await chatService.getMessages(chatroomId, offset, batchSize, startTime, endTime, true)
-      if (!batch.success || !batch.messages) {
-        return { success: false, error: batch.error || '获取群消息失败' }
-      }
+    const cursorResult = await this.openMemberMessageCursor(chatroomId, batchSize, true, startTime, endTime)
+    if (!cursorResult.success || !cursorResult.cursor) {
+      return { success: false, error: cursorResult.error || '创建群消息游标失败' }
+    }

-      for (const message of batch.messages) {
-        if (this.isSameAccountIdentity(memberUsername, message.senderUsername)) {
-          matchedMessages.push(message)
+    const cursor = cursorResult.cursor
+    try {
+      while (true) {
+        const batch = await wcdbService.fetchMessageBatch(cursor)
+        if (!batch.success) {
+          return { success: false, error: batch.error || '获取群消息失败' }
        }
-      }
+        const rows = Array.isArray(batch.rows) ? batch.rows as Record<string, any>[] : []
+        if (rows.length === 0) break

-      const fetchedCount = batch.messages.length
-      if (fetchedCount <= 0 || !batch.hasMore) break
-      offset += fetchedCount
+        for (const row of rows) {
+          const senderFromRow = this.extractRowSenderUsername(row)
+          if (senderFromRow && !matchesTargetSender(senderFromRow)) {
+            continue
+          }
+          const message = this.parseSingleMessageRow(row)
+          if (!message) continue
+          if (matchesTargetSender(message.senderUsername)) {
+            matchedMessages.push(message)
+          }
+        }
+
+        if (!batch.hasMore) break
+      }
+    } finally {
+      await wcdbService.closeMessageCursor(cursor)
    }

    return { success: true, data: matchedMessages }
@@ -832,57 +900,93 @@ class GroupAnalyticsService {
        : 0

      const matchedMessages: Message[] = []
-      const batchSize = Math.max(limit * 2, 100)
+      const senderMatchCache = new Map<string, boolean>()
+      const matchesTargetSender = (sender: string | null | undefined): boolean => {
+        const key = String(sender || '').trim().toLowerCase()
+        if (!key) return false
+        const cached = senderMatchCache.get(key)
+        if (typeof cached === 'boolean') return cached
+        const matched = this.isSameAccountIdentity(normalizedMemberUsername, sender)
+        senderMatchCache.set(key, matched)
+        return matched
+      }
+      const batchSize = Math.max(limit * 4, 240)
      let hasMore = false

-      while (matchedMessages.length < limit) {
-        const batch = await chatService.getMessages(
-          normalizedChatroomId,
-          cursor,
-          batchSize,
-          startTimeValue,
-          endTimeValue,
-          false
-        )
-        if (!batch.success || !batch.messages) {
-          return { success: false, error: batch.error || '获取群成员消息失败' }
-        }
+      const cursorResult = await this.openMemberMessageCursor(
+        normalizedChatroomId,
+        batchSize,
+        false,
+        startTimeValue,
+        endTimeValue
+      )
+      if (!cursorResult.success || !cursorResult.cursor) {
+        return { success: false, error: cursorResult.error || '创建群成员消息游标失败' }
+      }

-        const currentMessages = batch.messages
-        const nextCursor = typeof batch.nextOffset === 'number'
-          ? Math.max(cursor, Math.floor(batch.nextOffset))
-          : cursor + currentMessages.length
+      let consumedRows = 0
+      const dbCursor = cursorResult.cursor

-        let overflowMatchFound = false
-        for (const message of currentMessages) {
-          if (!this.isSameAccountIdentity(normalizedMemberUsername, message.senderUsername)) {
-            continue
+      try {
+        while (matchedMessages.length < limit) {
+          const batch = await wcdbService.fetchMessageBatch(dbCursor)
+          if (!batch.success) {
+            return { success: false, error: batch.error || '获取群成员消息失败' }
          }

-          if (matchedMessages.length < limit) {
+          const rows = Array.isArray(batch.rows) ? batch.rows as Record<string, any>[] : []
+          if (rows.length === 0) {
+            hasMore = false
+            break
+          }
+
+          let startIndex = 0
+          if (cursor > consumedRows) {
+            const skipCount = Math.min(cursor - consumedRows, rows.length)
+            consumedRows += skipCount
+            startIndex = skipCount
+            if (startIndex >= rows.length) {
+              if (!batch.hasMore) {
+                hasMore = false
+                break
+              }
+              continue
+            }
+          }
+
+          for (let index = startIndex; index < rows.length; index += 1) {
+            const row = rows[index]
+            consumedRows += 1
+
+            const senderFromRow = this.extractRowSenderUsername(row)
+            if (senderFromRow && !matchesTargetSender(senderFromRow)) {
+              continue
+            }
+
+            const message = this.parseSingleMessageRow(row)
+            if (!message) continue
+            if (!matchesTargetSender(message.senderUsername)) {
+              continue
+            }
+
            matchedMessages.push(message)
-          } else {
-            overflowMatchFound = true
+            if (matchedMessages.length >= limit) {
+              cursor = consumedRows
+              hasMore = index < rows.length - 1 || batch.hasMore === true
+              break
+            }
+          }
+
+          if (matchedMessages.length >= limit) break
+
+          cursor = consumedRows
+          if (!batch.hasMore) {
+            hasMore = false
            break
          }
        }
-
-        cursor = nextCursor
-
-        if (overflowMatchFound) {
-          hasMore = true
-          break
-        }
-
-        if (currentMessages.length === 0 || !batch.hasMore) {
-          hasMore = false
-          break
-        }
-
-        if (matchedMessages.length >= limit) {
-          hasMore = true
-          break
-        }
+      } finally {
+        await wcdbService.closeMessageCursor(dbCursor)
      }

      return {
--- a/electron/services/httpService.ts
+++ b/electron/services/httpService.ts
@@ -103,6 +103,8 @@ class HttpService {
  private port: number = 5031
  private running: boolean = false
  private connections: Set<import('net').Socket> = new Set()
+  private messagePushClients: Set<http.ServerResponse> = new Set()
+  private messagePushHeartbeatTimer: ReturnType<typeof setInterval> | null = null
  private connectionMutex: boolean = false

  constructor() {
@@ -153,6 +155,7 @@ class HttpService {

      this.server.listen(this.port, '127.0.0.1', () => {
        this.running = true
+        this.startMessagePushHeartbeat()
        console.log(`[HttpService] HTTP API server started on http://127.0.0.1:${this.port}`)
        resolve({ success: true, port: this.port })
      })
@@ -165,6 +168,16 @@ class HttpService {
  async stop(): Promise<void> {
    return new Promise((resolve) => {
      if (this.server) {
+        for (const client of this.messagePushClients) {
+          try {
+            client.end()
+          } catch {}
+        }
+        this.messagePushClients.clear()
+        if (this.messagePushHeartbeatTimer) {
+          clearInterval(this.messagePushHeartbeatTimer)
+          this.messagePushHeartbeatTimer = null
+        }
        // 使用互斥锁保护连接集合操作
        this.connectionMutex = true
        const socketsToClose = Array.from(this.connections)
@@ -211,6 +224,28 @@ class HttpService {
    return this.getApiMediaExportPath()
  }

+  getMessagePushStreamUrl(): string {
+    return `http://127.0.0.1:${this.port}/api/v1/push/messages`
+  }
+
+  broadcastMessagePush(payload: Record<string, unknown>): void {
+    if (!this.running || this.messagePushClients.size === 0) return
+    const eventBody = `event: message.new\ndata: ${JSON.stringify(payload)}\n\n`
+
+    for (const client of Array.from(this.messagePushClients)) {
+      try {
+        if (client.writableEnded || client.destroyed) {
+          this.messagePushClients.delete(client)
+          continue
+        }
+        client.write(eventBody)
+      } catch {
+        this.messagePushClients.delete(client)
+        try { client.end() } catch {}
+      }
+    }
+  }
+
  /**
   * 处理 HTTP 请求
   */
@@ -233,6 +268,8 @@ class HttpService {
      // 路由处理
      if (pathname === '/health' || pathname === '/api/v1/health') {
        this.sendJson(res, { status: 'ok' })
+      } else if (pathname === '/api/v1/push/messages') {
+        this.handleMessagePushStream(req, res)
      } else if (pathname === '/api/v1/messages') {
        await this.handleMessages(url, res)
      } else if (pathname === '/api/v1/sessions') {
@@ -252,6 +289,50 @@ class HttpService {
    }
  }

+  private startMessagePushHeartbeat(): void {
+    if (this.messagePushHeartbeatTimer) return
+    this.messagePushHeartbeatTimer = setInterval(() => {
+      for (const client of Array.from(this.messagePushClients)) {
+        try {
+          if (client.writableEnded || client.destroyed) {
+            this.messagePushClients.delete(client)
+            continue
+          }
+          client.write(': ping\n\n')
+        } catch {
+          this.messagePushClients.delete(client)
+          try { client.end() } catch {}
+        }
+      }
+    }, 25000)
+  }
+
+  private handleMessagePushStream(req: http.IncomingMessage, res: http.ServerResponse): void {
+    if (this.configService.get('messagePushEnabled') !== true) {
+      this.sendError(res, 403, 'Message push is disabled')
+      return
+    }
+
+    res.writeHead(200, {
+      'Content-Type': 'text/event-stream; charset=utf-8',
+      'Cache-Control': 'no-cache, no-transform',
+      Connection: 'keep-alive',
+      'X-Accel-Buffering': 'no'
+    })
+    res.flushHeaders?.()
+    res.write(`event: ready\ndata: ${JSON.stringify({ success: true, stream: this.getMessagePushStreamUrl() })}\n\n`)
+
+    this.messagePushClients.add(res)
+
+    const cleanup = () => {
+      this.messagePushClients.delete(res)
+    }
+
+    req.on('close', cleanup)
+    res.on('close', cleanup)
+    res.on('error', cleanup)
+  }
+
  private handleMediaRequest(pathname: string, res: http.ServerResponse): void {
    const mediaBasePath = this.getApiMediaExportPath()
    const relativePath = pathname.replace('/api/v1/media/', '')
--- a/electron/services/imageDecryptService.ts
+++ b/electron/services/imageDecryptService.ts
@@ -55,14 +55,19 @@ type DecryptResult = {
  isThumb?: boolean  // 是否是缩略图（没有高清图时返回缩略图）
 }

-type HardlinkState = {
-  imageTable?: string
-  dirTable?: string
+type CachedImagePayload = {
+  sessionId?: string
+  imageMd5?: string
+  imageDatName?: string
+  preferFilePath?: boolean
+}
+
+type DecryptImagePayload = CachedImagePayload & {
+  force?: boolean
 }

 export class ImageDecryptService {
  private configService = new ConfigService()
-  private hardlinkCache = new Map<string, HardlinkState>()
  private resolvedCache = new Map<string, string>()
  private pending = new Map<string, Promise<DecryptResult>>()
  private readonly defaultV1AesKey = 'cfcd208495d565ef'
@@ -106,7 +111,7 @@ export class ImageDecryptService {
    }
  }

-  async resolveCachedImage(payload: { sessionId?: string; imageMd5?: string; imageDatName?: string }): Promise<DecryptResult & { hasUpdate?: boolean }> {
+  async resolveCachedImage(payload: CachedImagePayload): Promise<DecryptResult & { hasUpdate?: boolean }> {
    await this.ensureCacheIndexed()
    const cacheKeys = this.getCacheKeys(payload)
    const cacheKey = cacheKeys[0]
@@ -116,7 +121,7 @@ export class ImageDecryptService {
    for (const key of cacheKeys) {
      const cached = this.resolvedCache.get(key)
      if (cached && existsSync(cached) && this.isImageFile(cached)) {
-        const dataUrl = this.fileToDataUrl(cached)
+        const localPath = this.resolveLocalPathForPayload(cached, payload.preferFilePath)
        const isThumb = this.isThumbnailPath(cached)
        const hasUpdate = isThumb ? (this.updateFlags.get(key) ?? false) : false
        if (isThumb) {
@@ -124,8 +129,8 @@ export class ImageDecryptService {
        } else {
          this.updateFlags.delete(key)
        }
-        this.emitCacheResolved(payload, key, dataUrl || this.filePathToUrl(cached))
-        return { success: true, localPath: dataUrl || this.filePathToUrl(cached), hasUpdate }
+        this.emitCacheResolved(payload, key, this.resolveEmitPath(cached, payload.preferFilePath))
+        return { success: true, localPath, hasUpdate }
      }
      if (cached && !this.isImageFile(cached)) {
        this.resolvedCache.delete(key)
@@ -136,7 +141,7 @@ export class ImageDecryptService {
      const existing = this.findCachedOutput(key, false, payload.sessionId)
      if (existing) {
        this.cacheResolvedPaths(key, payload.imageMd5, payload.imageDatName, existing)
-        const dataUrl = this.fileToDataUrl(existing)
+        const localPath = this.resolveLocalPathForPayload(existing, payload.preferFilePath)
        const isThumb = this.isThumbnailPath(existing)
        const hasUpdate = isThumb ? (this.updateFlags.get(key) ?? false) : false
        if (isThumb) {
@@ -144,27 +149,53 @@ export class ImageDecryptService {
        } else {
          this.updateFlags.delete(key)
        }
-        this.emitCacheResolved(payload, key, dataUrl || this.filePathToUrl(existing))
-        return { success: true, localPath: dataUrl || this.filePathToUrl(existing), hasUpdate }
+        this.emitCacheResolved(payload, key, this.resolveEmitPath(existing, payload.preferFilePath))
+        return { success: true, localPath, hasUpdate }
      }
    }
    this.logInfo('未找到缓存', { md5: payload.imageMd5, datName: payload.imageDatName })
    return { success: false, error: '未找到缓存图片' }
  }

-  async decryptImage(payload: { sessionId?: string; imageMd5?: string; imageDatName?: string; force?: boolean }): Promise<DecryptResult> {
+  async decryptImage(payload: DecryptImagePayload): Promise<DecryptResult> {
    await this.ensureCacheIndexed()
-    const cacheKey = payload.imageMd5 || payload.imageDatName
+    const cacheKeys = this.getCacheKeys(payload)
+    const cacheKey = cacheKeys[0]
    if (!cacheKey) {
      return { success: false, error: '缺少图片标识' }
    }

+    if (payload.force) {
+      for (const key of cacheKeys) {
+        const cached = this.resolvedCache.get(key)
+        if (cached && existsSync(cached) && this.isImageFile(cached) && !this.isThumbnailPath(cached)) {
+          this.cacheResolvedPaths(cacheKey, payload.imageMd5, payload.imageDatName, cached)
+          this.clearUpdateFlags(cacheKey, payload.imageMd5, payload.imageDatName)
+          const localPath = this.resolveLocalPathForPayload(cached, payload.preferFilePath)
+          this.emitCacheResolved(payload, cacheKey, this.resolveEmitPath(cached, payload.preferFilePath))
+          return { success: true, localPath }
+        }
+        if (cached && !this.isImageFile(cached)) {
+          this.resolvedCache.delete(key)
+        }
+      }
+
+      for (const key of cacheKeys) {
+        const existingHd = this.findCachedOutput(key, true, payload.sessionId)
+        if (!existingHd || this.isThumbnailPath(existingHd)) continue
+        this.cacheResolvedPaths(cacheKey, payload.imageMd5, payload.imageDatName, existingHd)
+        this.clearUpdateFlags(cacheKey, payload.imageMd5, payload.imageDatName)
+        const localPath = this.resolveLocalPathForPayload(existingHd, payload.preferFilePath)
+        this.emitCacheResolved(payload, cacheKey, this.resolveEmitPath(existingHd, payload.preferFilePath))
+        return { success: true, localPath }
+      }
+    }
+
    if (!payload.force) {
      const cached = this.resolvedCache.get(cacheKey)
      if (cached && existsSync(cached) && this.isImageFile(cached)) {
-        const dataUrl = this.fileToDataUrl(cached)
-        const localPath = dataUrl || this.filePathToUrl(cached)
-        this.emitCacheResolved(payload, cacheKey, localPath)
+        const localPath = this.resolveLocalPathForPayload(cached, payload.preferFilePath)
+        this.emitCacheResolved(payload, cacheKey, this.resolveEmitPath(cached, payload.preferFilePath))
        return { success: true, localPath }
      }
      if (cached && !this.isImageFile(cached)) {
@@ -184,8 +215,44 @@ export class ImageDecryptService {
    }
  }

+  async preloadImageHardlinkMd5s(md5List: string[]): Promise<void> {
+    const normalizedList = Array.from(
+      new Set((md5List || []).map((item) => String(item || '').trim().toLowerCase()).filter(Boolean))
+    )
+    if (normalizedList.length === 0) return
+
+    const wxid = this.configService.get('myWxid')
+    const dbPath = this.configService.get('dbPath')
+    if (!wxid || !dbPath) return
+
+    const accountDir = this.resolveAccountDir(dbPath, wxid)
+    if (!accountDir) return
+
+    try {
+      const ready = await this.ensureWcdbReady()
+      if (!ready) return
+      const requests = normalizedList.map((md5) => ({ md5, accountDir }))
+      const result = await wcdbService.resolveImageHardlinkBatch(requests)
+      if (!result.success || !Array.isArray(result.rows)) return
+
+      for (const row of result.rows) {
+        const md5 = String(row?.md5 || '').trim().toLowerCase()
+        if (!md5) continue
+        const fullPath = String(row?.data?.full_path || '').trim()
+        if (!fullPath || !existsSync(fullPath)) continue
+        this.cacheDatPath(accountDir, md5, fullPath)
+        const fileName = String(row?.data?.file_name || '').trim().toLowerCase()
+        if (fileName) {
+          this.cacheDatPath(accountDir, fileName, fullPath)
+        }
+      }
+    } catch {
+      // ignore preload failures
+    }
+  }
+
  private async decryptImageInternal(
-    payload: { sessionId?: string; imageMd5?: string; imageDatName?: string; force?: boolean },
+    payload: DecryptImagePayload,
    cacheKey: string
  ): Promise<DecryptResult> {
    this.logInfo('开始解密图片', { md5: payload.imageMd5, datName: payload.imageDatName, force: payload.force })
@@ -225,10 +292,9 @@ export class ImageDecryptService {

      if (!extname(datPath).toLowerCase().includes('dat')) {
        this.cacheResolvedPaths(cacheKey, payload.imageMd5, payload.imageDatName, datPath)
-        const dataUrl = this.fileToDataUrl(datPath)
-        const localPath = dataUrl || this.filePathToUrl(datPath)
+        const localPath = this.resolveLocalPathForPayload(datPath, payload.preferFilePath)
        const isThumb = this.isThumbnailPath(datPath)
-        this.emitCacheResolved(payload, cacheKey, localPath)
+        this.emitCacheResolved(payload, cacheKey, this.resolveEmitPath(datPath, payload.preferFilePath))
        return { success: true, localPath, isThumb }
      }

@@ -240,10 +306,9 @@ export class ImageDecryptService {
        // 如果要求高清但找到的是缩略图，继续解密高清图
        if (!(payload.force && !isHd)) {
          this.cacheResolvedPaths(cacheKey, payload.imageMd5, payload.imageDatName, existing)
-          const dataUrl = this.fileToDataUrl(existing)
-          const localPath = dataUrl || this.filePathToUrl(existing)
+          const localPath = this.resolveLocalPathForPayload(existing, payload.preferFilePath)
          const isThumb = this.isThumbnailPath(existing)
-          this.emitCacheResolved(payload, cacheKey, localPath)
+          this.emitCacheResolved(payload, cacheKey, this.resolveEmitPath(existing, payload.preferFilePath))
          return { success: true, localPath, isThumb }
        }
      }
@@ -303,9 +368,11 @@ export class ImageDecryptService {
      if (!isThumb) {
        this.clearUpdateFlags(cacheKey, payload.imageMd5, payload.imageDatName)
      }
-      const dataUrl = this.bufferToDataUrl(decrypted, finalExt)
-      const localPath = dataUrl || this.filePathToUrl(outputPath)
-      this.emitCacheResolved(payload, cacheKey, localPath)
+      const localPath = payload.preferFilePath
+        ? outputPath
+        : (this.bufferToDataUrl(decrypted, finalExt) || this.filePathToUrl(outputPath))
+      const emitPath = this.resolveEmitPath(outputPath, payload.preferFilePath)
+      this.emitCacheResolved(payload, cacheKey, emitPath)
      return { success: true, localPath, isThumb }
    } catch (e) {
      this.logError('解密失败', e, { md5: payload.imageMd5, datName: payload.imageDatName })
@@ -654,45 +721,19 @@ export class ImageDecryptService {

  private async resolveHardlinkPath(accountDir: string, md5: string, _sessionId?: string): Promise<string | null> {
    try {
-      const hardlinkPath = this.resolveHardlinkDbPath(accountDir)
-      if (!hardlinkPath) {
-        return null
-      }
-
      const ready = await this.ensureWcdbReady()
      if (!ready) {
        this.logInfo('[ImageDecrypt] hardlink db not ready')
        return null
      }

-      const state = await this.getHardlinkState(accountDir, hardlinkPath)
-      if (!state.imageTable) {
-        this.logInfo('[ImageDecrypt] hardlink table missing', { hardlinkPath })
-        return null
-      }
+      const resolveResult = await wcdbService.resolveImageHardlink(md5, accountDir)
+      if (!resolveResult.success || !resolveResult.data) return null
+      const fileName = String(resolveResult.data.file_name || '').trim()
+      const fullPath = String(resolveResult.data.full_path || '').trim()
+      if (!fileName) return null

-      const escapedMd5 = this.escapeSqlString(md5)
-      const rowResult = await wcdbService.execQuery(
-        'media',
-        hardlinkPath,
-        `SELECT dir1, dir2, file_name FROM ${state.imageTable} WHERE lower(md5) = lower('${escapedMd5}') LIMIT 1`
-      )
-      const row = rowResult.success && rowResult.rows ? rowResult.rows[0] : null
-
-      if (!row) {
-        this.logInfo('[ImageDecrypt] hardlink row miss', { md5, table: state.imageTable })
-        return null
-      }
-
-      const dir1 = this.getRowValue(row, 'dir1')
-      const dir2 = this.getRowValue(row, 'dir2')
-      const fileName = this.getRowValue(row, 'file_name') ?? this.getRowValue(row, 'fileName')
-      if (dir1 === undefined || dir2 === undefined || !fileName) {
-        this.logInfo('[ImageDecrypt] hardlink row incomplete', { row })
-        return null
-      }
-
-      const lowerFileName = fileName.toLowerCase()
+      const lowerFileName = String(fileName).toLowerCase()
      if (lowerFileName.endsWith('.dat')) {
        const baseLower = lowerFileName.slice(0, -4)
        if (!this.isLikelyImageDatBase(baseLower) && !this.looksLikeMd5(baseLower)) {
@@ -701,57 +742,11 @@ export class ImageDecryptService {
        }
      }

-      // dir1 和 dir2 是 rowid，需要从 dir2id 表查询对应的目录名
-      let dir1Name: string | null = null
-      let dir2Name: string | null = null
-
-      if (state.dirTable) {
-        try {
-          // 通过 rowid 查询目录名
-          const dir1Result = await wcdbService.execQuery(
-            'media',
-            hardlinkPath,
-            `SELECT username FROM ${state.dirTable} WHERE rowid = ${Number(dir1)} LIMIT 1`
-          )
-          if (dir1Result.success && dir1Result.rows && dir1Result.rows.length > 0) {
-            const value = this.getRowValue(dir1Result.rows[0], 'username')
-            if (value) dir1Name = String(value)
-          }
-
-          const dir2Result = await wcdbService.execQuery(
-            'media',
-            hardlinkPath,
-            `SELECT username FROM ${state.dirTable} WHERE rowid = ${Number(dir2)} LIMIT 1`
-          )
-          if (dir2Result.success && dir2Result.rows && dir2Result.rows.length > 0) {
-            const value = this.getRowValue(dir2Result.rows[0], 'username')
-            if (value) dir2Name = String(value)
-          }
-        } catch {
-          // ignore
-        }
+      if (fullPath && existsSync(fullPath)) {
+        this.logInfo('[ImageDecrypt] hardlink path hit', { fullPath })
+        return fullPath
      }
-
-      if (!dir1Name || !dir2Name) {
-        this.logInfo('[ImageDecrypt] hardlink dir resolve miss', { dir1, dir2, dir1Name, dir2Name })
-        return null
-      }
-
-      // 构建路径: msg/attach/{dir1Name}/{dir2Name}/Img/{fileName}
-      const possiblePaths = [
-        join(accountDir, 'msg', 'attach', dir1Name, dir2Name, 'Img', fileName),
-        join(accountDir, 'msg', 'attach', dir1Name, dir2Name, 'mg', fileName),
-        join(accountDir, 'msg', 'attach', dir1Name, dir2Name, fileName),
-      ]
-
-      for (const fullPath of possiblePaths) {
-        if (existsSync(fullPath)) {
-          this.logInfo('[ImageDecrypt] hardlink path hit', { fullPath })
-          return fullPath
-        }
-      }
-
-      this.logInfo('[ImageDecrypt] hardlink path miss', { possiblePaths })
+      this.logInfo('[ImageDecrypt] hardlink path miss', { fullPath, md5 })
      return null
    } catch {
      // ignore
@@ -759,35 +754,6 @@ export class ImageDecryptService {
    return null
  }

-  private async getHardlinkState(accountDir: string, hardlinkPath: string): Promise<HardlinkState> {
-    const cached = this.hardlinkCache.get(hardlinkPath)
-    if (cached) return cached
-
-    const imageResult = await wcdbService.execQuery(
-      'media',
-      hardlinkPath,
-      "SELECT name FROM sqlite_master WHERE type='table' AND name LIKE 'image_hardlink_info%' ORDER BY name DESC LIMIT 1"
-    )
-    const dirResult = await wcdbService.execQuery(
-      'media',
-      hardlinkPath,
-      "SELECT name FROM sqlite_master WHERE type='table' AND name LIKE 'dir2id%' LIMIT 1"
-    )
-    const imageTable = imageResult.success && imageResult.rows && imageResult.rows.length > 0
-      ? this.getRowValue(imageResult.rows[0], 'name')
-      : undefined
-    const dirTable = dirResult.success && dirResult.rows && dirResult.rows.length > 0
-      ? this.getRowValue(dirResult.rows[0], 'name')
-      : undefined
-    const state: HardlinkState = {
-      imageTable: imageTable ? String(imageTable) : undefined,
-      dirTable: dirTable ? String(dirTable) : undefined
-    }
-    this.logInfo('[ImageDecrypt] hardlink state', { hardlinkPath, imageTable: state.imageTable, dirTable: state.dirTable })
-    this.hardlinkCache.set(hardlinkPath, state)
-    return state
-  }
-
  private async ensureWcdbReady(): Promise<boolean> {
    if (wcdbService.isReady()) return true
    const dbPath = this.configService.get('dbPath')
@@ -1572,6 +1538,16 @@ export class ImageDecryptService {
    return `data:${mimeType};base64,${buffer.toString('base64')}`
  }

+  private resolveLocalPathForPayload(filePath: string, preferFilePath?: boolean): string {
+    if (preferFilePath) return filePath
+    return this.resolveEmitPath(filePath, false)
+  }
+
+  private resolveEmitPath(filePath: string, preferFilePath?: boolean): string {
+    if (preferFilePath) return this.filePathToUrl(filePath)
+    return this.fileToDataUrl(filePath) || this.filePathToUrl(filePath)
+  }
+
  private fileToDataUrl(filePath: string): string | null {
    try {
      const ext = extname(filePath).toLowerCase()
@@ -1963,7 +1939,6 @@ export class ImageDecryptService {

  async clearCache(): Promise<{ success: boolean; error?: string }> {
    this.resolvedCache.clear()
-    this.hardlinkCache.clear()
    this.pending.clear()
    this.updateFlags.clear()
    this.cacheIndexed = false
--- a/electron/services/keyServiceLinux.ts
+++ b/electron/services/keyServiceLinux.ts
@@ -0,0 +1,292 @@
+import { app } from 'electron'
+import { join } from 'path'
+import { existsSync, readdirSync, statSync, readFileSync } from 'fs'
+import { execFile, exec } from 'child_process'
+import { promisify } from 'util'
+import { createRequire } from 'module';
+const require = createRequire(import.meta.url);
+
+const execFileAsync = promisify(execFile)
+const execAsync = promisify(exec)
+
+type DbKeyResult = { success: boolean; key?: string; error?: string; logs?: string[] }
+type ImageKeyResult = { success: boolean; xorKey?: number; aesKey?: string; error?: string }
+
+export class KeyServiceLinux {
+  private sudo: any
+
+  constructor() {
+    try {
+      this.sudo = require('sudo-prompt');
+    } catch (e) {
+      console.error('Failed to load sudo-prompt', e);
+    }
+  }
+
+  private getHelperPath(): string {
+    const isPackaged = app.isPackaged
+    const candidates: string[] = []
+    if (process.env.WX_KEY_HELPER_PATH) candidates.push(process.env.WX_KEY_HELPER_PATH)
+    if (isPackaged) {
+      candidates.push(join(process.resourcesPath, 'resources', 'xkey_helper_linux'))
+      candidates.push(join(process.resourcesPath, 'xkey_helper_linux'))
+    } else {
+      candidates.push(join(app.getAppPath(), 'resources', 'xkey_helper_linux'))
+      candidates.push(join(app.getAppPath(), '..', 'Xkey', 'build', 'xkey_helper_linux'))
+    }
+    for (const p of candidates) {
+      if (existsSync(p)) return p
+    }
+    throw new Error('找不到 xkey_helper_linux，请检查路径')
+  }
+
+  public async autoGetDbKey(
+      timeoutMs = 60_000,
+      onStatus?: (message: string, level: number) => void
+  ): Promise<DbKeyResult> {
+    try {
+      onStatus?.('正在尝试结束当前微信进程...', 0)
+      await execAsync('killall -9 wechat wechat-bin xwechat').catch(() => {})
+      // 稍微等待进程完全退出
+      await new Promise(r => setTimeout(r, 1000))
+
+      onStatus?.('正在尝试拉起微信...', 0)
+      const startCmds = [
+        'nohup wechat >/dev/null 2>&1 &',
+        'nohup wechat-bin >/dev/null 2>&1 &',
+        'nohup xwechat >/dev/null 2>&1 &'
+      ]
+      for (const cmd of startCmds) execAsync(cmd).catch(() => {})
+
+      onStatus?.('等待微信进程出现...', 0)
+      let pid = 0
+      for (let i = 0; i < 15; i++) { // 最多等 15 秒
+        await new Promise(r => setTimeout(r, 1000))
+        const { stdout } = await execAsync('pidof wechat wechat-bin xwechat').catch(() => ({ stdout: '' }))
+        const pids = stdout.trim().split(/\s+/).filter(p => p)
+        if (pids.length > 0) {
+          pid = parseInt(pids[0], 10)
+          break
+        }
+      }
+
+      if (!pid) {
+        const err = '未能自动启动微信，请手动启动并登录。'
+        onStatus?.(err, 2)
+        return { success: false, error: err }
+      }
+
+      onStatus?.(`捕获到微信 PID: ${pid}，准备获取密钥...`, 0)
+
+      await new Promise(r => setTimeout(r, 2000))
+
+      return await this.getDbKey(pid, onStatus)
+    } catch (err: any) {
+      const errMsg = '自动获取微信 PID 失败: ' + err.message
+      onStatus?.(errMsg, 2)
+      return { success: false, error: errMsg }
+    }
+  }
+
+  public async getDbKey(pid: number, onStatus?: (message: string, level: number) => void): Promise<DbKeyResult> {
+    try {
+      const helperPath = this.getHelperPath()
+
+      onStatus?.('正在扫描数据库基址...', 0)
+      const { stdout: scanOut } = await execFileAsync(helperPath, ['db_scan', pid.toString()])
+      const scanRes = JSON.parse(scanOut.trim())
+
+      if (!scanRes.success) {
+        const err = scanRes.result || '扫描失败，请确保微信已完全登录'
+        onStatus?.(err, 2)
+        return { success: false, error: err }
+      }
+
+      const targetAddr = scanRes.target_addr
+      onStatus?.('基址扫描成功，正在请求管理员权限进行内存 Hook...', 0)
+
+      return await new Promise((resolve) => {
+        const options = { name: 'WeFlow' }
+        const command = `"${helperPath}" db_hook ${pid} ${targetAddr}`
+
+        this.sudo.exec(command, options, (error, stdout) => {
+          execAsync(`kill -CONT ${pid}`).catch(() => {})
+          if (error) {
+            onStatus?.('授权失败或被取消', 2)
+            resolve({ success: false, error: `授权失败或被取消: ${error.message}` })
+            return
+          }
+          try {
+            const hookRes = JSON.parse((stdout as string).trim())
+            if (hookRes.success) {
+              onStatus?.('密钥获取成功', 1)
+              resolve({ success: true, key: hookRes.key })
+            } else {
+              onStatus?.(hookRes.result, 2)
+              resolve({ success: false, error: hookRes.result })
+            }
+          } catch (e) {
+            onStatus?.('解析 Hook 结果失败', 2)
+            resolve({ success: false, error: '解析 Hook 结果失败' })
+          }
+        })
+      })
+    } catch (err: any) {
+      onStatus?.(err.message, 2)
+      return { success: false, error: err.message }
+    }
+  }
+
+  public async autoGetImageKey(
+      accountPath?: string,
+      onProgress?: (msg: string) => void,
+      wxid?: string
+  ): Promise<ImageKeyResult> {
+    try {
+      onProgress?.('正在初始化缓存扫描...');
+      const helperPath = this.getHelperPath()
+      const { stdout } = await execFileAsync(helperPath, ['image_local'])
+      const res = JSON.parse(stdout.trim())
+      if (!res.success) return { success: false, error: res.result }
+
+      const accounts = res.data.accounts || []
+      let account = accounts.find((a: any) => a.wxid === wxid)
+      if (!account && accounts.length > 0) account = accounts[0]
+
+      if (account && account.keys && account.keys.length > 0) {
+        onProgress?.(`已找到匹配的图片密钥 (wxid: ${account.wxid})`);
+        const keyObj = account.keys[0]
+        return { success: true, xorKey: keyObj.xorKey, aesKey: keyObj.aesKey }
+      }
+      return { success: false, error: '未在缓存中找到匹配的图片密钥' }
+    } catch (err: any) {
+      return { success: false, error: err.message }
+    }
+  }
+
+  public async autoGetImageKeyByMemoryScan(
+      accountPath: string,
+      onProgress?: (msg: string) => void
+  ): Promise<ImageKeyResult> {
+    try {
+      onProgress?.('正在查找模板文件...')
+      let result = await this._findTemplateData(accountPath, 32)
+      let { ciphertext, xorKey } = result
+
+      if (ciphertext && xorKey === null) {
+        onProgress?.('未找到有效密钥，尝试扫描更多文件...')
+        result = await this._findTemplateData(accountPath, 100)
+        xorKey = result.xorKey
+      }
+
+      if (!ciphertext) return { success: false, error: '未找到 V2 模板文件，请先在微信中查看几张图片' }
+      if (xorKey === null) return { success: false, error: '未能从模板文件中计算出有效的 XOR 密钥' }
+
+      onProgress?.(`XOR 密钥: 0x${xorKey.toString(16).padStart(2, '0')}，正在查找微信进程...`)
+
+      // 2. 找微信 PID
+      const { stdout } = await execAsync('pidof wechat wechat-bin xwechat').catch(() => ({ stdout: '' }))
+      const pids = stdout.trim().split(/\s+/).filter(p => p)
+      if (pids.length === 0) return { success: false, error: '微信未运行，无法扫描内存' }
+      const pid = parseInt(pids[0], 10)
+
+      onProgress?.(`已找到微信进程 PID=${pid}，正在提权扫描进程内存...`);
+
+      // 3. 将 Buffer 转换为 hex 传递给 helper
+      const ciphertextHex = ciphertext.toString('hex')
+      const helperPath = this.getHelperPath()
+
+      try {
+        console.log(`[Debug] 准备执行 Helper: ${helperPath} image_mem ${pid} ${ciphertextHex}`);
+
+        const { stdout: memOut, stderr } = await execFileAsync(helperPath, ['image_mem', pid.toString(), ciphertextHex])
+
+        console.log(`[Debug] Helper stdout: ${memOut}`);
+        if (stderr) {
+          console.warn(`[Debug] Helper stderr: ${stderr}`);
+        }
+
+        if (!memOut || memOut.trim() === '') {
+          return { success: false, error: 'Helper 返回为空，请检查是否有足够的权限(如需sudo)读取进程内存。' }
+        }
+
+        const res = JSON.parse(memOut.trim())
+
+        if (res.success) {
+          onProgress?.('内存扫描成功');
+          return { success: true, xorKey, aesKey: res.key }
+        }
+        return { success: false, error: res.result || '未知错误' }
+
+      } catch (err: any) {
+        console.error('[Debug] 执行或解析 Helper 时发生崩溃:', err);
+        return {
+          success: false,
+          error: `内存扫描失败: ${err.message}\nstdout: ${err.stdout || '无'}\nstderr: ${err.stderr || '无'}`
+        }
+      }
+    } catch (err: any) {
+      return { success: false, error: `内存扫描失败: ${err.message}` }
+    }
+  }
+
+  private async _findTemplateData(userDir: string, limit: number = 32): Promise<{ ciphertext: Buffer | null; xorKey: number | null }> {
+    const V2_MAGIC = Buffer.from([0x07, 0x08, 0x56, 0x32, 0x08, 0x07])
+
+    // 递归收集 *_t.dat 文件
+    const collect = (dir: string, results: string[], maxFiles: number) => {
+      if (results.length >= maxFiles) return
+      try {
+        for (const entry of readdirSync(dir, { withFileTypes: true })) {
+          if (results.length >= maxFiles) break
+          const full = join(dir, entry.name)
+          if (entry.isDirectory()) collect(full, results, maxFiles)
+          else if (entry.isFile() && entry.name.endsWith('_t.dat')) results.push(full)
+        }
+      } catch { /* 忽略无权限目录 */ }
+    }
+
+    const files: string[] = []
+    collect(userDir, files, limit)
+
+    // 按修改时间降序
+    files.sort((a, b) => {
+      try { return statSync(b).mtimeMs - statSync(a).mtimeMs } catch { return 0 }
+    })
+
+    let ciphertext: Buffer | null = null
+    const tailCounts: Record<string, number> = {}
+
+    for (const f of files.slice(0, 32)) {
+      try {
+        const data = readFileSync(f)
+        if (data.length < 8) continue
+
+        // 统计末尾两字节用于 XOR 密钥
+        if (data.subarray(0, 6).equals(V2_MAGIC) && data.length >= 2) {
+          const key = `${data[data.length - 2]}_${data[data.length - 1]}`
+          tailCounts[key] = (tailCounts[key] ?? 0) + 1
+        }
+
+        // 提取密文（取第一个有效的）
+        if (!ciphertext && data.subarray(0, 6).equals(V2_MAGIC) && data.length >= 0x1F) {
+          ciphertext = data.subarray(0xF, 0x1F)
+        }
+      } catch { /* 忽略 */ }
+    }
+
+    // 计算 XOR 密钥
+    let xorKey: number | null = null
+    let maxCount = 0
+    for (const [key, count] of Object.entries(tailCounts)) {
+      if (count > maxCount) {
+        maxCount = count
+        const [x, y] = key.split('_').map(Number)
+        const k = x ^ 0xFF
+        if (k === (y ^ 0xD9)) xorKey = k
+      }
+    }
+
+    return { ciphertext, xorKey }
+  }
+}
--- a/electron/services/keyServiceMac.ts
+++ b/electron/services/keyServiceMac.ts
@@ -136,7 +136,7 @@ export class KeyServiceMac {
      if (sipStatus.enabled) {
        return {
          success: false,
-          error: 'SIP (系统完整性保护) 已开启，无法获取密钥。请关闭 SIP 后重试。\n\n关闭方法：\n1. 重启 Mac 并按住 Command + R 进入恢复模式\n2. 打开终端，输入: csrutil disable\n3. 重启电脑'
+          error: 'SIP (系统完整性保护) 已开启，无法获取密钥。请关闭 SIP 后重试。\n\n关闭方法：\n1. Intel 芯片：重启 Mac 并按住 Command + R 进入恢复模式\n2. Apple 芯片（M 系列）：关机后长按开机（指纹）键，选择“设置（选项）”进入恢复模式\n3. 打开终端，输入: csrutil disable\n4. 重启电脑'
        }
      }

--- a/electron/services/messagePushService.ts
+++ b/electron/services/messagePushService.ts
@@ -0,0 +1,371 @@
+import { ConfigService } from './config'
+import { chatService, type ChatSession, type Message } from './chatService'
+import { wcdbService } from './wcdbService'
+import { httpService } from './httpService'
+
+interface SessionBaseline {
+  lastTimestamp: number
+  unreadCount: number
+}
+
+interface MessagePushPayload {
+  event: 'message.new'
+  sessionId: string
+  messageKey: string
+  avatarUrl?: string
+  sourceName: string
+  groupName?: string
+  content: string | null
+}
+
+const PUSH_CONFIG_KEYS = new Set([
+  'messagePushEnabled',
+  'dbPath',
+  'decryptKey',
+  'myWxid'
+])
+
+class MessagePushService {
+  private readonly configService: ConfigService
+  private readonly sessionBaseline = new Map<string, SessionBaseline>()
+  private readonly recentMessageKeys = new Map<string, number>()
+  private readonly groupNicknameCache = new Map<string, { nicknames: Record<string, string>; updatedAt: number }>()
+  private readonly debounceMs = 350
+  private readonly recentMessageTtlMs = 10 * 60 * 1000
+  private readonly groupNicknameCacheTtlMs = 5 * 60 * 1000
+  private debounceTimer: ReturnType<typeof setTimeout> | null = null
+  private processing = false
+  private rerunRequested = false
+  private started = false
+  private baselineReady = false
+
+  constructor() {
+    this.configService = ConfigService.getInstance()
+  }
+
+  start(): void {
+    if (this.started) return
+    this.started = true
+    void this.refreshConfiguration('startup')
+  }
+
+  handleDbMonitorChange(type: string, json: string): void {
+    if (!this.started) return
+    if (!this.isPushEnabled()) return
+
+    let payload: Record<string, unknown> | null = null
+    try {
+      payload = JSON.parse(json)
+    } catch {
+      payload = null
+    }
+
+    const tableName = String(payload?.table || '').trim().toLowerCase()
+    if (tableName && tableName !== 'session') {
+      return
+    }
+
+    this.scheduleSync()
+  }
+
+  async handleConfigChanged(key: string): Promise<void> {
+    if (!PUSH_CONFIG_KEYS.has(String(key || '').trim())) return
+    if (key === 'dbPath' || key === 'decryptKey' || key === 'myWxid') {
+      this.resetRuntimeState()
+      chatService.close()
+    }
+    await this.refreshConfiguration(`config:${key}`)
+  }
+
+  handleConfigCleared(): void {
+    this.resetRuntimeState()
+    chatService.close()
+  }
+
+  private isPushEnabled(): boolean {
+    return this.configService.get('messagePushEnabled') === true
+  }
+
+  private resetRuntimeState(): void {
+    this.sessionBaseline.clear()
+    this.recentMessageKeys.clear()
+    this.groupNicknameCache.clear()
+    this.baselineReady = false
+    if (this.debounceTimer) {
+      clearTimeout(this.debounceTimer)
+      this.debounceTimer = null
+    }
+  }
+
+  private async refreshConfiguration(reason: string): Promise<void> {
+    if (!this.isPushEnabled()) {
+      this.resetRuntimeState()
+      return
+    }
+
+    const connectResult = await chatService.connect()
+    if (!connectResult.success) {
+      console.warn(`[MessagePushService] Bootstrap connect failed (${reason}):`, connectResult.error)
+      return
+    }
+
+    await this.bootstrapBaseline()
+  }
+
+  private async bootstrapBaseline(): Promise<void> {
+    const sessionsResult = await chatService.getSessions()
+    if (!sessionsResult.success || !sessionsResult.sessions) {
+      return
+    }
+    this.setBaseline(sessionsResult.sessions as ChatSession[])
+    this.baselineReady = true
+  }
+
+  private scheduleSync(): void {
+    if (this.debounceTimer) {
+      clearTimeout(this.debounceTimer)
+    }
+
+    this.debounceTimer = setTimeout(() => {
+      this.debounceTimer = null
+      void this.flushPendingChanges()
+    }, this.debounceMs)
+  }
+
+  private async flushPendingChanges(): Promise<void> {
+    if (this.processing) {
+      this.rerunRequested = true
+      return
+    }
+
+    this.processing = true
+    try {
+      if (!this.isPushEnabled()) return
+
+      const connectResult = await chatService.connect()
+      if (!connectResult.success) {
+        console.warn('[MessagePushService] Sync connect failed:', connectResult.error)
+        return
+      }
+
+      const sessionsResult = await chatService.getSessions()
+      if (!sessionsResult.success || !sessionsResult.sessions) {
+        return
+      }
+
+      const sessions = sessionsResult.sessions as ChatSession[]
+      if (!this.baselineReady) {
+        this.setBaseline(sessions)
+        this.baselineReady = true
+        return
+      }
+
+      const previousBaseline = new Map(this.sessionBaseline)
+      this.setBaseline(sessions)
+
+      const candidates = sessions.filter((session) => this.shouldInspectSession(previousBaseline.get(session.username), session))
+      for (const session of candidates) {
+        await this.pushSessionMessages(session, previousBaseline.get(session.username))
+      }
+    } finally {
+      this.processing = false
+      if (this.rerunRequested) {
+        this.rerunRequested = false
+        this.scheduleSync()
+      }
+    }
+  }
+
+  private setBaseline(sessions: ChatSession[]): void {
+    this.sessionBaseline.clear()
+    for (const session of sessions) {
+      this.sessionBaseline.set(session.username, {
+        lastTimestamp: Number(session.lastTimestamp || 0),
+        unreadCount: Number(session.unreadCount || 0)
+      })
+    }
+  }
+
+  private shouldInspectSession(previous: SessionBaseline | undefined, session: ChatSession): boolean {
+    const sessionId = String(session.username || '').trim()
+    if (!sessionId || sessionId.toLowerCase().includes('placeholder_foldgroup')) {
+      return false
+    }
+
+    const summary = String(session.summary || '').trim()
+    if (Number(session.lastMsgType || 0) === 10002 || summary.includes('撤回了一条消息')) {
+      return false
+    }
+
+    const lastTimestamp = Number(session.lastTimestamp || 0)
+    const unreadCount = Number(session.unreadCount || 0)
+
+    if (!previous) {
+      return unreadCount > 0 && lastTimestamp > 0
+    }
+
+    if (lastTimestamp <= previous.lastTimestamp) {
+      return false
+    }
+
+    // unread 未增长时，大概率是自己发送、其他设备已读或状态同步，不作为主动推送
+    return unreadCount > previous.unreadCount
+  }
+
+  private async pushSessionMessages(session: ChatSession, previous: SessionBaseline | undefined): Promise<void> {
+    const since = Math.max(0, Number(previous?.lastTimestamp || 0) - 1)
+    const newMessagesResult = await chatService.getNewMessages(session.username, since, 1000)
+    if (!newMessagesResult.success || !newMessagesResult.messages || newMessagesResult.messages.length === 0) {
+      return
+    }
+
+    for (const message of newMessagesResult.messages) {
+      const messageKey = String(message.messageKey || '').trim()
+      if (!messageKey) continue
+      if (message.isSend === 1) continue
+
+      if (previous && Number(message.createTime || 0) < Number(previous.lastTimestamp || 0)) {
+        continue
+      }
+
+      if (this.isRecentMessage(messageKey)) {
+        continue
+      }
+
+      const payload = await this.buildPayload(session, message)
+      if (!payload) continue
+
+      httpService.broadcastMessagePush(payload)
+      this.rememberMessageKey(messageKey)
+    }
+  }
+
+  private async buildPayload(session: ChatSession, message: Message): Promise<MessagePushPayload | null> {
+    const sessionId = String(session.username || '').trim()
+    const messageKey = String(message.messageKey || '').trim()
+    if (!sessionId || !messageKey) return null
+
+    const isGroup = sessionId.endsWith('@chatroom')
+    const content = this.getMessageDisplayContent(message)
+
+    if (isGroup) {
+      const groupInfo = await chatService.getContactAvatar(sessionId)
+      const groupName = session.displayName || groupInfo?.displayName || sessionId
+      const sourceName = await this.resolveGroupSourceName(sessionId, message, session)
+      return {
+        event: 'message.new',
+        sessionId,
+        messageKey,
+        avatarUrl: session.avatarUrl || groupInfo?.avatarUrl,
+        groupName,
+        sourceName,
+        content
+      }
+    }
+
+    const contactInfo = await chatService.getContactAvatar(sessionId)
+    return {
+      event: 'message.new',
+      sessionId,
+      messageKey,
+      avatarUrl: session.avatarUrl || contactInfo?.avatarUrl,
+      sourceName: session.displayName || contactInfo?.displayName || sessionId,
+      content
+    }
+  }
+
+  private getMessageDisplayContent(message: Message): string | null {
+    switch (Number(message.localType || 0)) {
+      case 1:
+        return message.rawContent || null
+      case 3:
+        return '[图片]'
+      case 34:
+        return '[语音]'
+      case 43:
+        return '[视频]'
+      case 47:
+        return '[表情]'
+      case 42:
+        return message.cardNickname || '[名片]'
+      case 48:
+        return '[位置]'
+      case 49:
+        return message.linkTitle || message.fileName || '[消息]'
+      default:
+        return message.parsedContent || message.rawContent || null
+    }
+  }
+
+  private async resolveGroupSourceName(chatroomId: string, message: Message, session: ChatSession): Promise<string> {
+    const senderUsername = String(message.senderUsername || '').trim()
+    if (!senderUsername) {
+      return session.lastSenderDisplayName || '未知发送者'
+    }
+
+    const groupNicknames = await this.getGroupNicknames(chatroomId)
+    const normalizedSender = this.normalizeAccountId(senderUsername)
+    const nickname = groupNicknames[senderUsername]
+      || groupNicknames[senderUsername.toLowerCase()]
+      || groupNicknames[normalizedSender]
+      || groupNicknames[normalizedSender.toLowerCase()]
+
+    if (nickname) {
+      return nickname
+    }
+
+    const contactInfo = await chatService.getContactAvatar(senderUsername)
+    return contactInfo?.displayName || senderUsername
+  }
+
+  private async getGroupNicknames(chatroomId: string): Promise<Record<string, string>> {
+    const cacheKey = String(chatroomId || '').trim()
+    if (!cacheKey) return {}
+
+    const cached = this.groupNicknameCache.get(cacheKey)
+    if (cached && Date.now() - cached.updatedAt < this.groupNicknameCacheTtlMs) {
+      return cached.nicknames
+    }
+
+    const result = await wcdbService.getGroupNicknames(cacheKey)
+    const nicknames = result.success && result.nicknames ? result.nicknames : {}
+    this.groupNicknameCache.set(cacheKey, { nicknames, updatedAt: Date.now() })
+    return nicknames
+  }
+
+  private normalizeAccountId(value: string): string {
+    const trimmed = String(value || '').trim()
+    if (!trimmed) return trimmed
+
+    if (trimmed.toLowerCase().startsWith('wxid_')) {
+      const match = trimmed.match(/^(wxid_[^_]+)/i)
+      return match ? match[1] : trimmed
+    }
+
+    const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
+    return suffixMatch ? suffixMatch[1] : trimmed
+  }
+
+  private isRecentMessage(messageKey: string): boolean {
+    this.pruneRecentMessageKeys()
+    const timestamp = this.recentMessageKeys.get(messageKey)
+    return typeof timestamp === 'number' && Date.now() - timestamp < this.recentMessageTtlMs
+  }
+
+  private rememberMessageKey(messageKey: string): void {
+    this.recentMessageKeys.set(messageKey, Date.now())
+    this.pruneRecentMessageKeys()
+  }
+
+  private pruneRecentMessageKeys(): void {
+    const now = Date.now()
+    for (const [key, timestamp] of this.recentMessageKeys.entries()) {
+      if (now - timestamp > this.recentMessageTtlMs) {
+        this.recentMessageKeys.delete(key)
+      }
+    }
+  }
+
+}
+
+export const messagePushService = new MessagePushService()
--- a/electron/services/snsService.ts
+++ b/electron/services/snsService.ts
@@ -663,100 +663,24 @@ class SnsService {
    }

    async getSnsUsernames(): Promise<{ success: boolean; usernames?: string[]; error?: string }> {
-        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
+        const result = await wcdbService.getSnsUsernames()
+        if (!result.success) {
+            return { success: false, error: result.error || '获取朋友圈联系人失败' }
        }
-
-        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' }
+        return { success: true, usernames: result.usernames || [] }
    }

    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])
-                }
-            }
+        const result = await wcdbService.getSnsExportStats(normalizedMyWxid || undefined)
+        if (!result.success || !result.data) {
+            return { totalPosts: 0, totalFriends: 0, myPosts: normalizedMyWxid ? 0 : null }
+        }
+        return {
+            totalPosts: Number(result.data.totalPosts || 0),
+            totalFriends: Number(result.data.totalFriends || 0),
+            myPosts: result.data.myPosts === null || result.data.myPosts === undefined ? null : Number(result.data.myPosts || 0)
        }
-
-        return { totalPosts, totalFriends, myPosts }
    }

    async getExportStats(options?: {
--- a/electron/services/videoService.ts
+++ b/electron/services/videoService.ts
@@ -5,316 +5,553 @@ import { ConfigService } from './config'
 import { wcdbService } from './wcdbService'

 export interface VideoInfo {
-    videoUrl?: string       // 视频文件路径（用于 readFile）
-    coverUrl?: string       // 封面 data URL
-    thumbUrl?: string       // 缩略图 data URL
-    exists: boolean
+  videoUrl?: string       // 视频文件路径（用于 readFile）
+  coverUrl?: string       // 封面 data URL
+  thumbUrl?: string       // 缩略图 data URL
+  exists: boolean
+}
+
+interface TimedCacheEntry<T> {
+  value: T
+  expiresAt: number
+}
+
+interface VideoIndexEntry {
+  videoPath?: string
+  coverPath?: string
+  thumbPath?: string
 }

 class VideoService {
-    private configService: ConfigService
+  private configService: ConfigService
+  private hardlinkResolveCache = new Map<string, TimedCacheEntry<string | null>>()
+  private videoInfoCache = new Map<string, TimedCacheEntry<VideoInfo>>()
+  private videoDirIndexCache = new Map<string, TimedCacheEntry<Map<string, VideoIndexEntry>>>()
+  private pendingVideoInfo = new Map<string, Promise<VideoInfo>>()
+  private readonly hardlinkCacheTtlMs = 10 * 60 * 1000
+  private readonly videoInfoCacheTtlMs = 2 * 60 * 1000
+  private readonly videoIndexCacheTtlMs = 90 * 1000
+  private readonly maxCacheEntries = 2000
+  private readonly maxIndexEntries = 6

-    constructor() {
-        this.configService = new ConfigService()
+  constructor() {
+    this.configService = new ConfigService()
+  }
+
+  private log(message: string, meta?: Record<string, unknown>): void {
+    try {
+      const timestamp = new Date().toISOString()
+      const metaStr = meta ? ` ${JSON.stringify(meta)}` : ''
+      const logDir = join(app.getPath('userData'), 'logs')
+      if (!existsSync(logDir)) mkdirSync(logDir, { recursive: true })
+      appendFileSync(join(logDir, 'wcdb.log'), `[${timestamp}] [VideoService] ${message}${metaStr}\n`, 'utf8')
+    } catch { }
+  }
+
+  private readTimedCache<T>(cache: Map<string, TimedCacheEntry<T>>, key: string): T | undefined {
+    const hit = cache.get(key)
+    if (!hit) return undefined
+    if (hit.expiresAt <= Date.now()) {
+      cache.delete(key)
+      return undefined
+    }
+    return hit.value
+  }
+
+  private writeTimedCache<T>(
+    cache: Map<string, TimedCacheEntry<T>>,
+    key: string,
+    value: T,
+    ttlMs: number,
+    maxEntries: number
+  ): void {
+    cache.set(key, { value, expiresAt: Date.now() + ttlMs })
+    if (cache.size <= maxEntries) return
+
+    const now = Date.now()
+    for (const [cacheKey, entry] of cache) {
+      if (entry.expiresAt <= now) {
+        cache.delete(cacheKey)
+      }
    }

-    private log(message: string, meta?: Record<string, unknown>): void {
-        try {
-            const timestamp = new Date().toISOString()
-            const metaStr = meta ? ` ${JSON.stringify(meta)}` : ''
-            const logDir = join(app.getPath('userData'), 'logs')
-            if (!existsSync(logDir)) mkdirSync(logDir, { recursive: true })
-            appendFileSync(join(logDir, 'wcdb.log'), `[${timestamp}] [VideoService] ${message}${metaStr}\n`, 'utf8')
-        } catch {}
+    while (cache.size > maxEntries) {
+      const oldestKey = cache.keys().next().value as string | undefined
+      if (!oldestKey) break
+      cache.delete(oldestKey)
+    }
+  }
+
+  /**
+   * 获取数据库根目录
+   */
+  private getDbPath(): string {
+    return this.configService.get('dbPath') || ''
+  }
+
+  /**
+   * 获取当前用户的wxid
+   */
+  private getMyWxid(): string {
+    return this.configService.get('myWxid') || ''
+  }
+
+  /**
+   * 清理 wxid 目录名（去掉后缀）
+   */
+  private cleanWxid(wxid: string): string {
+    const trimmed = wxid.trim()
+    if (!trimmed) return trimmed
+
+    if (trimmed.toLowerCase().startsWith('wxid_')) {
+      const match = trimmed.match(/^(wxid_[^_]+)/i)
+      if (match) return match[1]
+      return trimmed
    }

-    /**
-     * 获取数据库根目录
-     */
-    private getDbPath(): string {
-        return this.configService.get('dbPath') || ''
+    const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
+    if (suffixMatch) return suffixMatch[1]
+
+    return trimmed
+  }
+
+  private getScopeKey(dbPath: string, wxid: string): string {
+    return `${dbPath}::${this.cleanWxid(wxid)}`.toLowerCase()
+  }
+
+  private resolveVideoBaseDir(dbPath: string, wxid: string): string {
+    const cleanedWxid = this.cleanWxid(wxid)
+    const dbPathLower = dbPath.toLowerCase()
+    const wxidLower = wxid.toLowerCase()
+    const cleanedWxidLower = cleanedWxid.toLowerCase()
+    const dbPathContainsWxid = dbPathLower.includes(wxidLower) || dbPathLower.includes(cleanedWxidLower)
+    if (dbPathContainsWxid) {
+      return join(dbPath, 'msg', 'video')
+    }
+    return join(dbPath, wxid, 'msg', 'video')
+  }
+
+  private getHardlinkDbPaths(dbPath: string, wxid: string, cleanedWxid: string): string[] {
+    const dbPathLower = dbPath.toLowerCase()
+    const wxidLower = wxid.toLowerCase()
+    const cleanedWxidLower = cleanedWxid.toLowerCase()
+    const dbPathContainsWxid = dbPathLower.includes(wxidLower) || dbPathLower.includes(cleanedWxidLower)
+
+    if (dbPathContainsWxid) {
+      return [join(dbPath, 'db_storage', 'hardlink', 'hardlink.db')]
    }

-    /**
-     * 获取当前用户的wxid
-     */
-    private getMyWxid(): string {
-        return this.configService.get('myWxid') || ''
+    return [
+      join(dbPath, wxid, 'db_storage', 'hardlink', 'hardlink.db'),
+      join(dbPath, cleanedWxid, 'db_storage', 'hardlink', 'hardlink.db')
+    ]
+  }
+
+  /**
+   * 从 video_hardlink_info_v4 表查询视频文件名
+   * 使用 wcdb 专属接口查询加密的 hardlink.db
+   */
+  private async resolveVideoHardlinks(
+    md5List: string[],
+    dbPath: string,
+    wxid: string,
+    cleanedWxid: string
+  ): Promise<Map<string, string>> {
+    const scopeKey = this.getScopeKey(dbPath, wxid)
+    const normalizedList = Array.from(
+      new Set((md5List || []).map((item) => String(item || '').trim().toLowerCase()).filter(Boolean))
+    )
+    const resolvedMap = new Map<string, string>()
+    const unresolvedSet = new Set(normalizedList)
+
+    for (const md5 of normalizedList) {
+      const cacheKey = `${scopeKey}|${md5}`
+      const cached = this.readTimedCache(this.hardlinkResolveCache, cacheKey)
+      if (cached === undefined) continue
+      if (cached) resolvedMap.set(md5, cached)
+      unresolvedSet.delete(md5)
    }

-    /**
-     * 获取缓存目录（解密后的数据库存放位置）
-     */
-    private getCachePath(): string {
-        return this.configService.getCacheBasePath()
-    }
+    if (unresolvedSet.size === 0) return resolvedMap

-    /**
-     * 清理 wxid 目录名（去掉后缀）
-     */
-    private cleanWxid(wxid: string): string {
-        const trimmed = wxid.trim()
-        if (!trimmed) return trimmed
-
-        if (trimmed.toLowerCase().startsWith('wxid_')) {
-            const match = trimmed.match(/^(wxid_[^_]+)/i)
-            if (match) return match[1]
-            return trimmed
-        }
-
-        const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
-        if (suffixMatch) return suffixMatch[1]
-
-        return trimmed
-    }
-
-    /**
-     * 从 video_hardlink_info_v4 表查询视频文件名
-     * 使用 wcdbService.execQuery 查询加密的 hardlink.db
-     */
-    private async queryVideoFileName(md5: string): Promise<string | undefined> {
-        const dbPath = this.getDbPath()
-        const wxid = this.getMyWxid()
-        const cleanedWxid = this.cleanWxid(wxid)
-
-        this.log('queryVideoFileName 开始', { md5, wxid, cleanedWxid, dbPath })
-
-        if (!wxid) {
-            this.log('queryVideoFileName: wxid 为空')
-            return undefined
-        }
-
-        // 使用 wcdbService.execQuery 查询加密的 hardlink.db
-        if (dbPath) {
-            const dbPathLower = dbPath.toLowerCase()
-            const wxidLower = wxid.toLowerCase()
-            const cleanedWxidLower = cleanedWxid.toLowerCase()
-            const dbPathContainsWxid = dbPathLower.includes(wxidLower) || dbPathLower.includes(cleanedWxidLower)
-
-            const encryptedDbPaths: string[] = []
-            if (dbPathContainsWxid) {
-                encryptedDbPaths.push(join(dbPath, 'db_storage', 'hardlink', 'hardlink.db'))
-            } else {
-                encryptedDbPaths.push(join(dbPath, wxid, 'db_storage', 'hardlink', 'hardlink.db'))
-                encryptedDbPaths.push(join(dbPath, cleanedWxid, 'db_storage', 'hardlink', 'hardlink.db'))
-            }
-
-            for (const p of encryptedDbPaths) {
-                if (existsSync(p)) {
-                    try {
-                        this.log('尝试加密 hardlink.db', { path: p })
-                        const escapedMd5 = md5.replace(/'/g, "''")
-                        const sql = `SELECT file_name FROM video_hardlink_info_v4 WHERE md5 = '${escapedMd5}' LIMIT 1`
-                        const result = await wcdbService.execQuery('media', p, sql)
-
-                        if (result.success && result.rows && result.rows.length > 0) {
-                            const row = result.rows[0]
-                            if (row?.file_name) {
-                                const realMd5 = String(row.file_name).replace(/\.[^.]+$/, '')
-                                this.log('加密 hardlink.db 命中', { file_name: row.file_name, realMd5 })
-                                return realMd5
-                            }
-                        }
-                        this.log('加密 hardlink.db 未命中', { path: p, result: JSON.stringify(result).slice(0, 200) })
-                    } catch (e) {
-                        this.log('加密 hardlink.db 查询失败', { path: p, error: String(e) })
-                    }
-                } else {
-                    this.log('加密 hardlink.db 不存在', { path: p })
-                }
-            }
-        }
-        this.log('queryVideoFileName: 所有方法均未找到', { md5 })
-        return undefined
-    }
-
-    /**
-     * 将文件转换为 data URL
-     */
-    private fileToDataUrl(filePath: string, mimeType: string): string | undefined {
-        try {
-            if (!existsSync(filePath)) return undefined
-            const buffer = readFileSync(filePath)
-            return `data:${mimeType};base64,${buffer.toString('base64')}`
-        } catch {
-            return undefined
-        }
-    }
-
-    /**
-     * 根据视频MD5获取视频文件信息
-     * 视频存放在: {数据库根目录}/{用户wxid}/msg/video/{年月}/
-     * 文件命名: {md5}.mp4, {md5}.jpg, {md5}_thumb.jpg
-     */
-    async getVideoInfo(videoMd5: string): Promise<VideoInfo> {
-        const dbPath = this.getDbPath()
-        const wxid = this.getMyWxid()
-
-        this.log('getVideoInfo 开始', { videoMd5, dbPath, wxid })
-
-        if (!dbPath || !wxid || !videoMd5) {
-            this.log('getVideoInfo: 参数缺失', { dbPath: !!dbPath, wxid: !!wxid, videoMd5: !!videoMd5 })
-            return { exists: false }
-        }
-
-        // 先尝试从数据库查询真正的视频文件名
-        const realVideoMd5 = await this.queryVideoFileName(videoMd5) || videoMd5
-        this.log('realVideoMd5', { input: videoMd5, resolved: realVideoMd5, changed: realVideoMd5 !== videoMd5 })
-
-        // 检查 dbPath 是否已经包含 wxid，避免重复拼接
-        const dbPathLower = dbPath.toLowerCase()
-        const wxidLower = wxid.toLowerCase()
-        const cleanedWxid = this.cleanWxid(wxid)
-
-        let videoBaseDir: string
-        if (dbPathLower.includes(wxidLower) || dbPathLower.includes(cleanedWxid.toLowerCase())) {
-            videoBaseDir = join(dbPath, 'msg', 'video')
+    const encryptedDbPaths = this.getHardlinkDbPaths(dbPath, wxid, cleanedWxid)
+    for (const p of encryptedDbPaths) {
+      if (!existsSync(p) || unresolvedSet.size === 0) continue
+      const unresolved = Array.from(unresolvedSet)
+      const requests = unresolved.map((md5) => ({ md5, dbPath: p }))
+      try {
+        const batchResult = await wcdbService.resolveVideoHardlinkMd5Batch(requests)
+        if (batchResult.success && Array.isArray(batchResult.rows)) {
+          for (const row of batchResult.rows) {
+            const index = Number.isFinite(Number(row?.index)) ? Math.floor(Number(row?.index)) : -1
+            const inputMd5 = index >= 0 && index < requests.length
+              ? requests[index].md5
+              : String(row?.md5 || '').trim().toLowerCase()
+            if (!inputMd5) continue
+            const resolvedMd5 = row?.success && row?.data?.resolved_md5
+              ? String(row.data.resolved_md5).trim().toLowerCase()
+              : ''
+            if (!resolvedMd5) continue
+            const cacheKey = `${scopeKey}|${inputMd5}`
+            this.writeTimedCache(this.hardlinkResolveCache, cacheKey, resolvedMd5, this.hardlinkCacheTtlMs, this.maxCacheEntries)
+            resolvedMap.set(inputMd5, resolvedMd5)
+            unresolvedSet.delete(inputMd5)
+          }
        } else {
-            videoBaseDir = join(dbPath, wxid, 'msg', 'video')
+          // 兼容不支持批量接口的版本，回退单条请求。
+          for (const req of requests) {
+            try {
+              const single = await wcdbService.resolveVideoHardlinkMd5(req.md5, req.dbPath)
+              const resolvedMd5 = single.success && single.data?.resolved_md5
+                ? String(single.data.resolved_md5).trim().toLowerCase()
+                : ''
+              if (!resolvedMd5) continue
+              const cacheKey = `${scopeKey}|${req.md5}`
+              this.writeTimedCache(this.hardlinkResolveCache, cacheKey, resolvedMd5, this.hardlinkCacheTtlMs, this.maxCacheEntries)
+              resolvedMap.set(req.md5, resolvedMd5)
+              unresolvedSet.delete(req.md5)
+            } catch { }
+          }
        }
-
-        this.log('videoBaseDir', { videoBaseDir, exists: existsSync(videoBaseDir) })
-
-        if (!existsSync(videoBaseDir)) {
-            this.log('getVideoInfo: videoBaseDir 不存在')
-            return { exists: false }
-        }
-
-        // 遍历年月目录查找视频文件
-        try {
-            const allDirs = readdirSync(videoBaseDir)
-            const yearMonthDirs = allDirs
-                .filter(dir => {
-                    const dirPath = join(videoBaseDir, dir)
-                    return statSync(dirPath).isDirectory()
-                })
-                .sort((a, b) => b.localeCompare(a))
-
-            this.log('扫描目录', { dirs: yearMonthDirs })
-
-            for (const yearMonth of yearMonthDirs) {
-                const dirPath = join(videoBaseDir, yearMonth)
-                const videoPath = join(dirPath, `${realVideoMd5}.mp4`)
-
-                if (existsSync(videoPath)) {
-                    // 封面/缩略图使用不带 _raw 后缀的基础名（自己发的视频文件名带 _raw，但封面不带）
-                    const baseMd5 = realVideoMd5.replace(/_raw$/, '')
-                    const coverPath = join(dirPath, `${baseMd5}.jpg`)
-                    const thumbPath = join(dirPath, `${baseMd5}_thumb.jpg`)
-
-                    // 列出同目录下与该 md5 相关的所有文件，帮助排查封面命名
-                    const allFiles = readdirSync(dirPath)
-                    const relatedFiles = allFiles.filter(f => f.toLowerCase().startsWith(realVideoMd5.slice(0, 8).toLowerCase()))
-                    this.log('找到视频，相关文件列表', {
-                        videoPath,
-                        coverExists: existsSync(coverPath),
-                        thumbExists: existsSync(thumbPath),
-                        relatedFiles,
-                        coverPath,
-                        thumbPath
-                    })
-
-                    return {
-                        videoUrl: videoPath,
-                        coverUrl: this.fileToDataUrl(coverPath, 'image/jpeg'),
-                        thumbUrl: this.fileToDataUrl(thumbPath, 'image/jpeg'),
-                        exists: true
-                    }
-                }
-            }
-
-            // 没找到，列出所有目录里的 mp4 文件帮助排查（最多每目录 10 个）
-            this.log('未找到视频，开始全目录扫描', {
-                lookingForOriginal: `${videoMd5}.mp4`,
-                lookingForResolved: `${realVideoMd5}.mp4`,
-                hardlinkResolved: realVideoMd5 !== videoMd5
-            })
-            for (const yearMonth of yearMonthDirs) {
-                const dirPath = join(videoBaseDir, yearMonth)
-                try {
-                    const allFiles = readdirSync(dirPath)
-                    const mp4Files = allFiles.filter(f => f.endsWith('.mp4')).slice(0, 10)
-                    // 检查原始 md5 是否部分匹配（前8位）
-                    const partialMatch = mp4Files.filter(f => f.toLowerCase().startsWith(videoMd5.slice(0, 8).toLowerCase()))
-                    this.log(`目录 ${yearMonth} 扫描结果`, {
-                        totalFiles: allFiles.length,
-                        mp4Count: allFiles.filter(f => f.endsWith('.mp4')).length,
-                        sampleMp4: mp4Files,
-                        partialMatchByOriginalMd5: partialMatch
-                    })
-                } catch (e) {
-                    this.log(`目录 ${yearMonth} 读取失败`, { error: String(e) })
-                }
-            }
-        } catch (e) {
-            this.log('getVideoInfo 遍历出错', { error: String(e) })
-        }
-
-        this.log('getVideoInfo: 未找到视频', { videoMd5, realVideoMd5 })
-        return { exists: false }
+      } catch (e) {
+        this.log('resolveVideoHardlinks 批量查询失败', { path: p, error: String(e) })
+      }
    }

-    /**
-     * 根据消息内容解析视频MD5
-     */
-    parseVideoMd5(content: string): string | undefined {
-        if (!content) return undefined
+    for (const md5 of unresolvedSet) {
+      const cacheKey = `${scopeKey}|${md5}`
+      this.writeTimedCache(this.hardlinkResolveCache, cacheKey, null, this.hardlinkCacheTtlMs, this.maxCacheEntries)
+    }

-        // 打印原始 XML 前 800 字符，帮助排查自己发的视频结构
-        this.log('parseVideoMd5 原始内容', { preview: content.slice(0, 800) })
+    return resolvedMap
+  }

+  private async queryVideoFileName(md5: string): Promise<string | undefined> {
+    const normalizedMd5 = String(md5 || '').trim().toLowerCase()
+    const dbPath = this.getDbPath()
+    const wxid = this.getMyWxid()
+    const cleanedWxid = this.cleanWxid(wxid)
+
+    this.log('queryVideoFileName 开始', { md5: normalizedMd5, wxid, cleanedWxid, dbPath })
+
+    if (!normalizedMd5 || !wxid || !dbPath) {
+      this.log('queryVideoFileName: 参数缺失', { hasMd5: !!normalizedMd5, hasWxid: !!wxid, hasDbPath: !!dbPath })
+      return undefined
+    }
+
+    const resolvedMap = await this.resolveVideoHardlinks([normalizedMd5], dbPath, wxid, cleanedWxid)
+    const resolved = resolvedMap.get(normalizedMd5)
+    if (resolved) {
+      this.log('queryVideoFileName 命中', { input: normalizedMd5, resolved })
+      return resolved
+    }
+    return undefined
+  }
+
+  async preloadVideoHardlinkMd5s(md5List: string[]): Promise<void> {
+    const dbPath = this.getDbPath()
+    const wxid = this.getMyWxid()
+    const cleanedWxid = this.cleanWxid(wxid)
+    if (!dbPath || !wxid) return
+    await this.resolveVideoHardlinks(md5List, dbPath, wxid, cleanedWxid)
+  }
+
+  /**
+   * 将文件转换为 data URL
+   */
+  private fileToDataUrl(filePath: string | undefined, mimeType: string): string | undefined {
+    try {
+      if (!filePath || !existsSync(filePath)) return undefined
+      const buffer = readFileSync(filePath)
+      return `data:${mimeType};base64,${buffer.toString('base64')}`
+    } catch {
+      return undefined
+    }
+  }
+
+  private getOrBuildVideoIndex(videoBaseDir: string): Map<string, VideoIndexEntry> {
+    const cached = this.readTimedCache(this.videoDirIndexCache, videoBaseDir)
+    if (cached) return cached
+
+    const index = new Map<string, VideoIndexEntry>()
+    const ensureEntry = (key: string): VideoIndexEntry => {
+      let entry = index.get(key)
+      if (!entry) {
+        entry = {}
+        index.set(key, entry)
+      }
+      return entry
+    }
+
+    try {
+      const yearMonthDirs = readdirSync(videoBaseDir)
+        .filter((dir) => {
+          const dirPath = join(videoBaseDir, dir)
+          try {
+            return statSync(dirPath).isDirectory()
+          } catch {
+            return false
+          }
+        })
+        .sort((a, b) => b.localeCompare(a))
+
+      for (const yearMonth of yearMonthDirs) {
+        const dirPath = join(videoBaseDir, yearMonth)
+        let files: string[] = []
        try {
-            // 收集所有 md5 相关属性，方便对比
-            const allMd5Attrs: string[] = []
-            const md5Regex = /(?:md5|rawmd5|newmd5|originsourcemd5)\s*=\s*['"]([a-fA-F0-9]*)['"]/gi
-            let match
-            while ((match = md5Regex.exec(content)) !== null) {
-                allMd5Attrs.push(match[0])
-            }
-            this.log('parseVideoMd5 所有 md5 属性', { attrs: allMd5Attrs })
-
-            // 方法1：从 <videomsg md5="..."> 提取（收到的视频）
-            const videoMsgMd5Match = /<videomsg[^>]*\smd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
-            if (videoMsgMd5Match) {
-                this.log('parseVideoMd5 命中 videomsg md5 属性', { md5: videoMsgMd5Match[1] })
-                return videoMsgMd5Match[1].toLowerCase()
-            }
-
-            // 方法2：从 <videomsg rawmd5="..."> 提取（自己发的视频，没有 md5 只有 rawmd5）
-            const rawMd5Match = /<videomsg[^>]*\srawmd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
-            if (rawMd5Match) {
-                this.log('parseVideoMd5 命中 videomsg rawmd5 属性（自发视频）', { rawmd5: rawMd5Match[1] })
-                return rawMd5Match[1].toLowerCase()
-            }
-
-            // 方法3：任意属性 md5="..."（非 rawmd5/cdnthumbaeskey 等）
-            const attrMatch = /(?<![a-z])md5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
-            if (attrMatch) {
-                this.log('parseVideoMd5 命中通用 md5 属性', { md5: attrMatch[1] })
-                return attrMatch[1].toLowerCase()
-            }
-
-            // 方法4：<md5>...</md5> 标签
-            const md5TagMatch = /<md5>([a-fA-F0-9]+)<\/md5>/i.exec(content)
-            if (md5TagMatch) {
-                this.log('parseVideoMd5 命中 md5 标签', { md5: md5TagMatch[1] })
-                return md5TagMatch[1].toLowerCase()
-            }
-
-            // 方法5：兜底取 rawmd5 属性（任意位置）
-            const rawMd5Fallback = /\srawmd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
-            if (rawMd5Fallback) {
-                this.log('parseVideoMd5 兜底命中 rawmd5', { rawmd5: rawMd5Fallback[1] })
-                return rawMd5Fallback[1].toLowerCase()
-            }
-
-            this.log('parseVideoMd5 未提取到任何 md5', { contentLength: content.length })
-        } catch (e) {
-            this.log('parseVideoMd5 异常', { error: String(e) })
+          files = readdirSync(dirPath)
+        } catch {
+          continue
        }

-        return undefined
+        for (const file of files) {
+          const lower = file.toLowerCase()
+          const fullPath = join(dirPath, file)
+
+          if (lower.endsWith('.mp4')) {
+            const md5 = lower.slice(0, -4)
+            const entry = ensureEntry(md5)
+            if (!entry.videoPath) entry.videoPath = fullPath
+            if (md5.endsWith('_raw')) {
+              const baseMd5 = md5.replace(/_raw$/, '')
+              const baseEntry = ensureEntry(baseMd5)
+              if (!baseEntry.videoPath) baseEntry.videoPath = fullPath
+            }
+            continue
+          }
+
+          if (!lower.endsWith('.jpg')) continue
+          const jpgBase = lower.slice(0, -4)
+          if (jpgBase.endsWith('_thumb')) {
+            const baseMd5 = jpgBase.slice(0, -6)
+            const entry = ensureEntry(baseMd5)
+            if (!entry.thumbPath) entry.thumbPath = fullPath
+          } else {
+            const entry = ensureEntry(jpgBase)
+            if (!entry.coverPath) entry.coverPath = fullPath
+          }
+        }
+      }
+
+      for (const [key, entry] of index) {
+        if (!key.endsWith('_raw')) continue
+        const baseKey = key.replace(/_raw$/, '')
+        const baseEntry = index.get(baseKey)
+        if (!baseEntry) continue
+        if (!entry.coverPath) entry.coverPath = baseEntry.coverPath
+        if (!entry.thumbPath) entry.thumbPath = baseEntry.thumbPath
+      }
+    } catch (e) {
+      this.log('构建视频索引失败', { videoBaseDir, error: String(e) })
    }
+
+    this.writeTimedCache(
+      this.videoDirIndexCache,
+      videoBaseDir,
+      index,
+      this.videoIndexCacheTtlMs,
+      this.maxIndexEntries
+    )
+    return index
+  }
+
+  private getVideoInfoFromIndex(index: Map<string, VideoIndexEntry>, md5: string, includePoster = true): VideoInfo | null {
+    const normalizedMd5 = String(md5 || '').trim().toLowerCase()
+    if (!normalizedMd5) return null
+
+    const candidates = [normalizedMd5]
+    const baseMd5 = normalizedMd5.replace(/_raw$/, '')
+    if (baseMd5 !== normalizedMd5) {
+      candidates.push(baseMd5)
+    } else {
+      candidates.push(`${normalizedMd5}_raw`)
+    }
+
+    for (const key of candidates) {
+      const entry = index.get(key)
+      if (!entry?.videoPath) continue
+      if (!existsSync(entry.videoPath)) continue
+      if (!includePoster) {
+        return {
+          videoUrl: entry.videoPath,
+          exists: true
+        }
+      }
+      return {
+        videoUrl: entry.videoPath,
+        coverUrl: this.fileToDataUrl(entry.coverPath, 'image/jpeg'),
+        thumbUrl: this.fileToDataUrl(entry.thumbPath, 'image/jpeg'),
+        exists: true
+      }
+    }
+
+    return null
+  }
+
+  private fallbackScanVideo(videoBaseDir: string, realVideoMd5: string, includePoster = true): VideoInfo | null {
+    try {
+      const yearMonthDirs = readdirSync(videoBaseDir)
+        .filter((dir) => {
+          const dirPath = join(videoBaseDir, dir)
+          try {
+            return statSync(dirPath).isDirectory()
+          } catch {
+            return false
+          }
+        })
+        .sort((a, b) => b.localeCompare(a))
+
+      for (const yearMonth of yearMonthDirs) {
+        const dirPath = join(videoBaseDir, yearMonth)
+        const videoPath = join(dirPath, `${realVideoMd5}.mp4`)
+        if (!existsSync(videoPath)) continue
+        if (!includePoster) {
+          return {
+            videoUrl: videoPath,
+            exists: true
+          }
+        }
+        const baseMd5 = realVideoMd5.replace(/_raw$/, '')
+        const coverPath = join(dirPath, `${baseMd5}.jpg`)
+        const thumbPath = join(dirPath, `${baseMd5}_thumb.jpg`)
+        return {
+          videoUrl: videoPath,
+          coverUrl: this.fileToDataUrl(coverPath, 'image/jpeg'),
+          thumbUrl: this.fileToDataUrl(thumbPath, 'image/jpeg'),
+          exists: true
+        }
+      }
+    } catch (e) {
+      this.log('fallback 扫描视频目录失败', { error: String(e) })
+    }
+    return null
+  }
+
+  /**
+   * 根据视频MD5获取视频文件信息
+   * 视频存放在: {数据库根目录}/{用户wxid}/msg/video/{年月}/
+   * 文件命名: {md5}.mp4, {md5}.jpg, {md5}_thumb.jpg
+   */
+  async getVideoInfo(videoMd5: string, options?: { includePoster?: boolean }): Promise<VideoInfo> {
+    const normalizedMd5 = String(videoMd5 || '').trim().toLowerCase()
+    const includePoster = options?.includePoster !== false
+    const dbPath = this.getDbPath()
+    const wxid = this.getMyWxid()
+
+    this.log('getVideoInfo 开始', { videoMd5: normalizedMd5, dbPath, wxid })
+
+    if (!dbPath || !wxid || !normalizedMd5) {
+      this.log('getVideoInfo: 参数缺失', { hasDbPath: !!dbPath, hasWxid: !!wxid, hasVideoMd5: !!normalizedMd5 })
+      return { exists: false }
+    }
+
+    const scopeKey = this.getScopeKey(dbPath, wxid)
+    const cacheKey = `${scopeKey}|${normalizedMd5}|poster=${includePoster ? 1 : 0}`
+
+    const cachedInfo = this.readTimedCache(this.videoInfoCache, cacheKey)
+    if (cachedInfo) return cachedInfo
+
+    const pending = this.pendingVideoInfo.get(cacheKey)
+    if (pending) return pending
+
+    const task = (async (): Promise<VideoInfo> => {
+      const realVideoMd5 = await this.queryVideoFileName(normalizedMd5) || normalizedMd5
+      const videoBaseDir = this.resolveVideoBaseDir(dbPath, wxid)
+
+      if (!existsSync(videoBaseDir)) {
+        const miss = { exists: false }
+        this.writeTimedCache(this.videoInfoCache, cacheKey, miss, this.videoInfoCacheTtlMs, this.maxCacheEntries)
+        return miss
+      }
+
+      const index = this.getOrBuildVideoIndex(videoBaseDir)
+      const indexed = this.getVideoInfoFromIndex(index, realVideoMd5, includePoster)
+      if (indexed) {
+        this.writeTimedCache(this.videoInfoCache, cacheKey, indexed, this.videoInfoCacheTtlMs, this.maxCacheEntries)
+        return indexed
+      }
+
+      const fallback = this.fallbackScanVideo(videoBaseDir, realVideoMd5, includePoster)
+      if (fallback) {
+        this.writeTimedCache(this.videoInfoCache, cacheKey, fallback, this.videoInfoCacheTtlMs, this.maxCacheEntries)
+        return fallback
+      }
+
+      const miss = { exists: false }
+      this.writeTimedCache(this.videoInfoCache, cacheKey, miss, this.videoInfoCacheTtlMs, this.maxCacheEntries)
+      this.log('getVideoInfo: 未找到视频', { inputMd5: normalizedMd5, resolvedMd5: realVideoMd5 })
+      return miss
+    })()
+
+    this.pendingVideoInfo.set(cacheKey, task)
+    try {
+      return await task
+    } finally {
+      this.pendingVideoInfo.delete(cacheKey)
+    }
+  }
+
+  /**
+   * 根据消息内容解析视频MD5
+   */
+  parseVideoMd5(content: string): string | undefined {
+    if (!content) return undefined
+
+    // 打印原始 XML 前 800 字符，帮助排查自己发的视频结构
+    this.log('parseVideoMd5 原始内容', { preview: content.slice(0, 800) })
+
+    try {
+      // 收集所有 md5 相关属性，方便对比
+      const allMd5Attrs: string[] = []
+      const md5Regex = /(?:md5|rawmd5|newmd5|originsourcemd5)\s*=\s*['"]([a-fA-F0-9]*)['"]/gi
+      let match
+      while ((match = md5Regex.exec(content)) !== null) {
+        allMd5Attrs.push(match[0])
+      }
+      this.log('parseVideoMd5 所有 md5 属性', { attrs: allMd5Attrs })
+
+      // 方法1：从 <videomsg md5="..."> 提取（收到的视频）
+      const videoMsgMd5Match = /<videomsg[^>]*\smd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
+      if (videoMsgMd5Match) {
+        this.log('parseVideoMd5 命中 videomsg md5 属性', { md5: videoMsgMd5Match[1] })
+        return videoMsgMd5Match[1].toLowerCase()
+      }
+
+      // 方法2：从 <videomsg rawmd5="..."> 提取（自己发的视频，没有 md5 只有 rawmd5）
+      const rawMd5Match = /<videomsg[^>]*\srawmd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
+      if (rawMd5Match) {
+        this.log('parseVideoMd5 命中 videomsg rawmd5 属性（自发视频）', { rawmd5: rawMd5Match[1] })
+        return rawMd5Match[1].toLowerCase()
+      }
+
+      // 方法3：任意属性 md5="..."（非 rawmd5/cdnthumbaeskey 等）
+      const attrMatch = /(?<![a-z])md5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
+      if (attrMatch) {
+        this.log('parseVideoMd5 命中通用 md5 属性', { md5: attrMatch[1] })
+        return attrMatch[1].toLowerCase()
+      }
+
+      // 方法4：<md5>...</md5> 标签
+      const md5TagMatch = /<md5>([a-fA-F0-9]+)<\/md5>/i.exec(content)
+      if (md5TagMatch) {
+        this.log('parseVideoMd5 命中 md5 标签', { md5: md5TagMatch[1] })
+        return md5TagMatch[1].toLowerCase()
+      }
+
+      // 方法5：兜底取 rawmd5 属性（任意位置）
+      const rawMd5Fallback = /\srawmd5\s*=\s*['"]([a-fA-F0-9]+)['"]/i.exec(content)
+      if (rawMd5Fallback) {
+        this.log('parseVideoMd5 兜底命中 rawmd5', { rawmd5: rawMd5Fallback[1] })
+        return rawMd5Fallback[1].toLowerCase()
+      }
+
+      this.log('parseVideoMd5 未提取到任何 md5', { contentLength: content.length })
+    } catch (e) {
+      this.log('parseVideoMd5 异常', { error: String(e) })
+    }
+
+    return undefined
+  }
 }

 export const videoService = new VideoService()
--- a/electron/services/wcdbCore.ts
+++ b/electron/services/wcdbCore.ts
--- a/electron/services/wcdbService.ts
+++ b/electron/services/wcdbService.ts
@@ -222,6 +222,48 @@ export class WcdbService {
    return this.callWorker('getMessageCounts', { sessionIds })
  }

+  async getSessionMessageCounts(sessionIds: string[]): Promise<{ success: boolean; counts?: Record<string, number>; error?: string }> {
+    return this.callWorker('getSessionMessageCounts', { sessionIds })
+  }
+
+  async getSessionMessageTypeStats(
+    sessionId: string,
+    beginTimestamp: number = 0,
+    endTimestamp: number = 0
+  ): Promise<{ success: boolean; data?: any; error?: string }> {
+    return this.callWorker('getSessionMessageTypeStats', { sessionId, beginTimestamp, endTimestamp })
+  }
+
+  async getSessionMessageTypeStatsBatch(
+    sessionIds: string[],
+    options?: {
+      beginTimestamp?: number
+      endTimestamp?: number
+      quickMode?: boolean
+      includeGroupSenderCount?: boolean
+    }
+  ): Promise<{ success: boolean; data?: Record<string, any>; error?: string }> {
+    return this.callWorker('getSessionMessageTypeStatsBatch', { sessionIds, options })
+  }
+
+  async getSessionMessageDateCounts(sessionId: string): Promise<{ success: boolean; counts?: Record<string, number>; error?: string }> {
+    return this.callWorker('getSessionMessageDateCounts', { sessionId })
+  }
+
+  async getSessionMessageDateCountsBatch(sessionIds: string[]): Promise<{ success: boolean; data?: Record<string, Record<string, number>>; error?: string }> {
+    return this.callWorker('getSessionMessageDateCountsBatch', { sessionIds })
+  }
+
+  async getMessagesByType(
+    sessionId: string,
+    localType: number,
+    ascending = false,
+    limit = 0,
+    offset = 0
+  ): Promise<{ success: boolean; rows?: any[]; error?: string }> {
+    return this.callWorker('getMessagesByType', { sessionId, localType, ascending, limit, offset })
+  }
+
  /**
   * 获取联系人昵称
   */
@@ -287,6 +329,14 @@ export class WcdbService {
    return this.callWorker('getMessageMeta', { dbPath, tableName, limit, offset })
  }

+  async getMessageTableColumns(dbPath: string, tableName: string): Promise<{ success: boolean; columns?: string[]; error?: string }> {
+    return this.callWorker('getMessageTableColumns', { dbPath, tableName })
+  }
+
+  async getMessageTableTimeRange(dbPath: string, tableName: string): Promise<{ success: boolean; data?: any; error?: string }> {
+    return this.callWorker('getMessageTableTimeRange', { dbPath, tableName })
+  }
+
  /**
   * 获取联系人详情
   */
@@ -301,6 +351,26 @@ export class WcdbService {
    return this.callWorker('getContactStatus', { usernames })
  }

+  async getContactTypeCounts(): Promise<{ success: boolean; counts?: { private: number; group: number; official: number; former_friend: number }; error?: string }> {
+    return this.callWorker('getContactTypeCounts')
+  }
+
+  async getContactsCompact(usernames: string[] = []): Promise<{ success: boolean; contacts?: any[]; error?: string }> {
+    return this.callWorker('getContactsCompact', { usernames })
+  }
+
+  async getContactAliasMap(usernames: string[]): Promise<{ success: boolean; map?: Record<string, string>; error?: string }> {
+    return this.callWorker('getContactAliasMap', { usernames })
+  }
+
+  async getContactFriendFlags(usernames: string[]): Promise<{ success: boolean; map?: Record<string, boolean>; error?: string }> {
+    return this.callWorker('getContactFriendFlags', { usernames })
+  }
+
+  async getChatRoomExtBuffer(chatroomId: string): Promise<{ success: boolean; extBuffer?: string; error?: string }> {
+    return this.callWorker('getChatRoomExtBuffer', { chatroomId })
+  }
+
  /**
   * 获取聚合统计数据
   */
@@ -372,7 +442,7 @@ export class WcdbService {
  }

  /**
-   * 执行 SQL 查询（支持参数化查询）
+   * 执行 SQL 查询（仅主进程内部使用：fallback/diagnostic/低频兼容）
   */
  async execQuery(kind: string, path: string | null, sql: string, params: any[] = []): Promise<{ success: boolean; rows?: any[]; error?: string }> {
    return this.callWorker('execQuery', { kind, path, sql, params })
@@ -417,6 +487,40 @@ export class WcdbService {
    return this.callWorker('getVoiceData', { sessionId, createTime, candidates, localId, svrId })
  }

+  async getVoiceDataBatch(
+    requests: Array<{ session_id: string; create_time: number; local_id?: number; svr_id?: string | number; candidates?: string[] }>
+  ): Promise<{ success: boolean; rows?: Array<{ index: number; hex?: string }>; error?: string }> {
+    return this.callWorker('getVoiceDataBatch', { requests })
+  }
+
+  async getMediaSchemaSummary(dbPath: string): Promise<{ success: boolean; data?: any; error?: string }> {
+    return this.callWorker('getMediaSchemaSummary', { dbPath })
+  }
+
+  async getHeadImageBuffers(usernames: string[]): Promise<{ success: boolean; map?: Record<string, string>; error?: string }> {
+    return this.callWorker('getHeadImageBuffers', { usernames })
+  }
+
+  async resolveImageHardlink(md5: string, accountDir?: string): Promise<{ success: boolean; data?: any; error?: string }> {
+    return this.callWorker('resolveImageHardlink', { md5, accountDir })
+  }
+
+  async resolveImageHardlinkBatch(
+    requests: Array<{ md5: string; accountDir?: string }>
+  ): Promise<{ success: boolean; rows?: Array<{ index: number; md5: string; success: boolean; data?: any; error?: string }>; error?: string }> {
+    return this.callWorker('resolveImageHardlinkBatch', { requests })
+  }
+
+  async resolveVideoHardlinkMd5(md5: string, dbPath?: string): Promise<{ success: boolean; data?: any; error?: string }> {
+    return this.callWorker('resolveVideoHardlinkMd5', { md5, dbPath })
+  }
+
+  async resolveVideoHardlinkMd5Batch(
+    requests: Array<{ md5: string; dbPath?: string }>
+  ): Promise<{ success: boolean; rows?: Array<{ index: number; md5: string; success: boolean; data?: any; error?: string }>; error?: string }> {
+    return this.callWorker('resolveVideoHardlinkMd5Batch', { requests })
+  }
+
  /**
   * 获取朋友圈
   */
@@ -431,6 +535,14 @@ export class WcdbService {
    return this.callWorker('getSnsAnnualStats', { beginTimestamp, endTimestamp })
  }

+  async getSnsUsernames(): Promise<{ success: boolean; usernames?: string[]; error?: string }> {
+    return this.callWorker('getSnsUsernames')
+  }
+
+  async getSnsExportStats(myWxid?: string): Promise<{ success: boolean; data?: { totalPosts: number; totalFriends: number; myPosts: number | null }; error?: string }> {
+    return this.callWorker('getSnsExportStats', { myWxid })
+  }
+
  /**
   * 安装朋友圈删除拦截
   */
--- a/electron/wcdbWorker.ts
+++ b/electron/wcdbWorker.ts
@@ -59,6 +59,24 @@ if (parentPort) {
                case 'getMessageCounts':
                    result = await core.getMessageCounts(payload.sessionIds)
                    break
+                case 'getSessionMessageCounts':
+                    result = await core.getSessionMessageCounts(payload.sessionIds)
+                    break
+                case 'getSessionMessageTypeStats':
+                    result = await core.getSessionMessageTypeStats(payload.sessionId, payload.beginTimestamp, payload.endTimestamp)
+                    break
+                case 'getSessionMessageTypeStatsBatch':
+                    result = await core.getSessionMessageTypeStatsBatch(payload.sessionIds, payload.options)
+                    break
+                case 'getSessionMessageDateCounts':
+                    result = await core.getSessionMessageDateCounts(payload.sessionId)
+                    break
+                case 'getSessionMessageDateCountsBatch':
+                    result = await core.getSessionMessageDateCountsBatch(payload.sessionIds)
+                    break
+                case 'getMessagesByType':
+                    result = await core.getMessagesByType(payload.sessionId, payload.localType, payload.ascending, payload.limit, payload.offset)
+                    break
                case 'getDisplayNames':
                    result = await core.getDisplayNames(payload.usernames)
                    break
@@ -89,12 +107,33 @@ if (parentPort) {
                case 'getMessageMeta':
                    result = await core.getMessageMeta(payload.dbPath, payload.tableName, payload.limit, payload.offset)
                    break
+                case 'getMessageTableColumns':
+                    result = await core.getMessageTableColumns(payload.dbPath, payload.tableName)
+                    break
+                case 'getMessageTableTimeRange':
+                    result = await core.getMessageTableTimeRange(payload.dbPath, payload.tableName)
+                    break
                case 'getContact':
                    result = await core.getContact(payload.username)
                    break
                case 'getContactStatus':
                    result = await core.getContactStatus(payload.usernames)
                    break
+                case 'getContactTypeCounts':
+                    result = await core.getContactTypeCounts()
+                    break
+                case 'getContactsCompact':
+                    result = await core.getContactsCompact(payload.usernames)
+                    break
+                case 'getContactAliasMap':
+                    result = await core.getContactAliasMap(payload.usernames)
+                    break
+                case 'getContactFriendFlags':
+                    result = await core.getContactFriendFlags(payload.usernames)
+                    break
+                case 'getChatRoomExtBuffer':
+                    result = await core.getChatRoomExtBuffer(payload.chatroomId)
+                    break
                case 'getAggregateStats':
                    result = await core.getAggregateStats(payload.sessionIds, payload.beginTimestamp, payload.endTimestamp)
                    break
@@ -149,12 +188,39 @@ if (parentPort) {
                        console.error('[wcdbWorker] getVoiceData failed:', result.error)
                    }
                    break
+                case 'getVoiceDataBatch':
+                    result = await core.getVoiceDataBatch(payload.requests)
+                    break
+                case 'getMediaSchemaSummary':
+                    result = await core.getMediaSchemaSummary(payload.dbPath)
+                    break
+                case 'getHeadImageBuffers':
+                    result = await core.getHeadImageBuffers(payload.usernames)
+                    break
+                case 'resolveImageHardlink':
+                    result = await core.resolveImageHardlink(payload.md5, payload.accountDir)
+                    break
+                case 'resolveImageHardlinkBatch':
+                    result = await core.resolveImageHardlinkBatch(payload.requests)
+                    break
+                case 'resolveVideoHardlinkMd5':
+                    result = await core.resolveVideoHardlinkMd5(payload.md5, payload.dbPath)
+                    break
+                case 'resolveVideoHardlinkMd5Batch':
+                    result = await core.resolveVideoHardlinkMd5Batch(payload.requests)
+                    break
                case 'getSnsTimeline':
                    result = await core.getSnsTimeline(payload.limit, payload.offset, payload.usernames, payload.keyword, payload.startTime, payload.endTime)
                    break
                case 'getSnsAnnualStats':
                    result = await core.getSnsAnnualStats(payload.beginTimestamp, payload.endTimestamp)
                    break
+                case 'getSnsUsernames':
+                    result = await core.getSnsUsernames()
+                    break
+                case 'getSnsExportStats':
+                    result = await core.getSnsExportStats(payload.myWxid)
+                    break
                case 'installSnsBlockDeleteTrigger':
                    result = await core.installSnsBlockDeleteTrigger()
                    break
--- a/package.json
+++ b/package.json
@@ -40,6 +40,7 @@
    "remark-gfm": "^4.0.1",
    "sherpa-onnx-node": "^1.10.38",
    "silk-wasm": "^3.7.1",
+    "sudo-prompt": "^9.2.1",
    "wechat-emojis": "^1.0.2",
    "zustand": "^5.0.2"
  },
@@ -88,6 +89,17 @@
      ],
      "icon": "public/icon.ico"
    },
+    "linux": {
+      "icon": "public/icon.png",
+      "target": [
+        "pacman",
+        "deb",
+        "tar.gz"
+      ],
+      "category": "Utility",
+      "executableName": "weflow",
+      "synopsis": "WeFlow for Linux"
+    },
    "nsis": {
      "oneClick": false,
      "differentialPackage": false,
@@ -118,6 +130,10 @@
        "from": "public/icon.ico",
        "to": "icon.ico"
      },
+      {
+        "from": "public/icon.png",
+        "to": "icon.png"
+      },
      {
        "from": "electron/assets/wasm/",
        "to": "assets/wasm/"
@@ -154,4 +170,4 @@
    ],
    "icon": "resources/icon.icns"
  }
-}
+}
--- a/public/icon.png
+++ b/public/icon.png
--- a/resources/libwcdb_api.dylib
+++ b/resources/libwcdb_api.dylib
--- a/resources/linux/libwcdb_api.so
+++ b/resources/linux/libwcdb_api.so
--- a/resources/macos/libwcdb_api.dylib
+++ b/resources/macos/libwcdb_api.dylib
--- a/resources/wcdb_api.dll
+++ b/resources/wcdb_api.dll
--- a/resources/xkey_helper_linux
+++ b/resources/xkey_helper_linux
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -75,7 +75,7 @@ function App() {
  const isAgreementWindow = location.pathname === '/agreement-window'
  const isOnboardingWindow = location.pathname === '/onboarding-window'
  const isVideoPlayerWindow = location.pathname === '/video-player-window'
-  const isChatHistoryWindow = location.pathname.startsWith('/chat-history/')
+  const isChatHistoryWindow = location.pathname.startsWith('/chat-history/') || location.pathname.startsWith('/chat-history-inline/')
  const isStandaloneChatWindow = location.pathname === '/chat-window'
  const isNotificationWindow = location.pathname === '/notification-window'
  const isSettingsRoute = location.pathname === '/settings'
@@ -660,6 +660,7 @@ function App() {
              <Route path="/sns" element={<SnsPage />} />
              <Route path="/contacts" element={<ContactsPage />} />
              <Route path="/chat-history/:sessionId/:messageId" element={<ChatHistoryPage />} />
+              <Route path="/chat-history-inline/:payloadId" element={<ChatHistoryPage />} />
            </Routes>
          </RouteGuard>
        </main>
--- a/src/components/BatchTranscribeGlobal.tsx
+++ b/src/components/BatchTranscribeGlobal.tsx
@@ -1,6 +1,6 @@
 import React, { useEffect, useState } from 'react'
 import { createPortal } from 'react-dom'
-import { Loader2, X, CheckCircle, XCircle, AlertCircle, Clock } from 'lucide-react'
+import { Loader2, X, CheckCircle, XCircle, AlertCircle, Clock, Mic } from 'lucide-react'
 import { useBatchTranscribeStore } from '../stores/batchTranscribeStore'
 import '../styles/batchTranscribe.scss'

@@ -17,6 +17,7 @@ export const BatchTranscribeGlobal: React.FC = () => {
    result,
    sessionName,
    startTime,
+    taskType,
    setShowToast,
    setShowResult
  } = useBatchTranscribeStore()
@@ -64,7 +65,7 @@ export const BatchTranscribeGlobal: React.FC = () => {
          <div className="batch-progress-toast-header">
            <div className="batch-progress-toast-title">
              <Loader2 size={14} className="spin" />
-              <span>批量转写中{sessionName ? `（${sessionName}）` : ''}</span>
+              <span>{taskType === 'decrypt' ? '批量解密语音中' : '批量转写中'}{sessionName ? `（${sessionName}）` : ''}</span>
            </div>
            <button className="batch-progress-toast-close" onClick={() => setShowToast(false)} title="最小化">
              <X size={14} />
@@ -108,8 +109,8 @@ export const BatchTranscribeGlobal: React.FC = () => {
        <div className="batch-modal-overlay" onClick={() => setShowResult(false)}>
          <div className="batch-modal-content batch-result-modal" onClick={(e) => e.stopPropagation()}>
            <div className="batch-modal-header">
-              <CheckCircle size={20} />
-              <h3>转写完成</h3>
+              {taskType === 'decrypt' ? <Mic size={20} /> : <CheckCircle size={20} />}
+              <h3>{taskType === 'decrypt' ? '语音解密完成' : '转写完成'}</h3>
            </div>
            <div className="batch-modal-body">
              <div className="result-summary">
@@ -129,7 +130,7 @@ export const BatchTranscribeGlobal: React.FC = () => {
              {result.fail > 0 && (
                <div className="result-tip">
                  <AlertCircle size={16} />
-                  <span>部分语音转写失败，可能是语音文件损坏或网络问题</span>
+                  <span>{taskType === 'decrypt' ? '部分语音解密失败，可能是语音未缓存或文件损坏' : '部分语音转写失败，可能是语音文件损坏或网络问题'}</span>
                </div>
              )}
            </div>
--- a/src/components/JumpToDatePopover.scss
+++ b/src/components/JumpToDatePopover.scss
@@ -137,18 +137,22 @@
  margin-top: 1px;
  font-size: 13px;
  line-height: 1;
-  color: #16a34a;
+  color: var(--primary, #07c160);
  font-weight: 700;
 }

 .jump-date-popover .day-cell.selected .day-count {
-  color: #86efac;
+  color: color-mix(in srgb, #ffffff 78%, var(--primary, #07c160) 22%);
 }

 .jump-date-popover .day-count-loading {
  position: static;
  margin-top: 1px;
-  color: #22c55e;
+  color: var(--primary, #07c160);
+}
+
+.jump-date-popover .day-cell.selected .day-count-loading {
+  color: color-mix(in srgb, #ffffff 78%, var(--primary, #07c160) 22%);
 }

 .jump-date-popover .spin {
--- a/src/pages/ChatHistoryPage.scss
+++ b/src/pages/ChatHistoryPage.scss
@@ -2,15 +2,16 @@
  display: flex;
  flex-direction: column;
  height: 100vh;
-  background: var(--bg-primary);
+  background:
+    linear-gradient(180deg, color-mix(in srgb, var(--bg-primary) 96%, white) 0%, var(--bg-primary) 100%);

  .history-list {
    flex: 1;
    overflow-y: auto;
-    padding: 16px;
+    padding: 18px 18px 28px;
    display: flex;
    flex-direction: column;
-    gap: 12px;
+    gap: 0;

    .status-msg {
      text-align: center;
@@ -30,8 +31,9 @@

  .history-item {
    display: flex;
-    gap: 12px;
+    gap: 14px;
    align-items: flex-start;
+    padding: 14px 0 0;

    &.error-item {
      padding: 12px;
@@ -43,65 +45,70 @@
      justify-content: center;
    }

-    .avatar {
-      width: 40px;
-      height: 40px;
-      border-radius: 4px;
+    .history-avatar {
+      width: 36px;
+      height: 36px;
+      border-radius: 8px;
      overflow: hidden;
      flex-shrink: 0;
-      background: var(--bg-tertiary);
+      border: none;
+      box-shadow: none;
+      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+      display: flex;
+      align-items: center;
+      justify-content: center;

-      img {
+      .avatar-component.avatar-inner {
        width: 100%;
        height: 100%;
-        object-fit: cover;
-      }
+        border-radius: inherit;
+        background: transparent;

-      .avatar-placeholder {
-        width: 100%;
-        height: 100%;
-        display: flex;
-        align-items: center;
-        justify-content: center;
-        color: var(--text-tertiary);
-        font-size: 16px;
-        font-weight: 500;
-        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-        color: white;
+        img.avatar-image {
+          // Forwarded record head images may include a light matte edge.
+          // Slightly zoom in to crop that edge and align with normal chat avatars.
+          transform: scale(1.12);
+          transform-origin: center;
+        }
      }
    }

    .content-wrapper {
      flex: 1;
      min-width: 0;
+      padding-bottom: 18px;
+      border-bottom: 1px solid color-mix(in srgb, var(--border-color) 82%, transparent);

      .header {
        display: flex;
        justify-content: space-between;
-        align-items: center;
-        margin-bottom: 6px;
+        align-items: flex-start;
+        gap: 12px;
+        margin-bottom: 4px;

        .sender {
-          font-size: 14px;
-          font-weight: 500;
-          color: var(--text-primary);
+          font-size: 13px;
+          font-weight: 400;
+          color: color-mix(in srgb, var(--text-secondary) 82%, transparent);
+          line-height: 1.3;
        }

        .time {
          font-size: 12px;
-          color: var(--text-tertiary);
+          color: color-mix(in srgb, var(--text-tertiary) 92%, transparent);
          flex-shrink: 0;
          margin-left: 8px;
+          line-height: 1.3;
        }
      }

      .bubble {
-        background: var(--bg-secondary);
-        padding: 10px 14px;
-        border-radius: 18px 18px 18px 4px;
+        background: transparent;
+        padding: 0;
+        border-radius: 0;
        word-wrap: break-word;
        max-width: 100%;
-        display: inline-block;
+        display: block;

        &.image-bubble {
          padding: 0;
@@ -109,8 +116,8 @@
        }

        .text-content {
-          font-size: 14px;
-          line-height: 1.6;
+          font-size: 15px;
+          line-height: 1.7;
          color: var(--text-primary);
          white-space: pre-wrap;
          word-break: break-word;
@@ -118,23 +125,84 @@

        .media-content {
          img {
-            max-width: 100%;
-            max-height: 300px;
-            border-radius: 8px;
+            max-width: min(100%, 420px);
+            max-height: 320px;
+            border-radius: 12px;
            display: block;
+            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
+            background: color-mix(in srgb, var(--bg-secondary) 88%, transparent);
          }

          .media-tip {
-            padding: 8px 12px;
+            padding: 6px 0;
            color: var(--text-tertiary);
            font-size: 13px;
          }
        }

        .media-placeholder {
-          font-size: 14px;
+          font-size: 13px;
          color: var(--text-secondary);
-          padding: 4px 0;
+          padding: 4px 0 0;
+        }
+
+        .nested-chat-record-card {
+          min-width: 220px;
+          max-width: 320px;
+          background: color-mix(in srgb, var(--bg-secondary) 97%, #f5f7fb);
+          border: 1px solid var(--border-color);
+          border-radius: 14px;
+          overflow: hidden;
+          padding: 0;
+          text-align: left;
+          cursor: default;
+          box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
+
+          &.clickable {
+            cursor: pointer;
+            transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
+
+            &:hover {
+              transform: translateY(-1px);
+              box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
+              border-color: color-mix(in srgb, var(--primary) 28%, var(--border-color));
+            }
+          }
+
+          &:disabled {
+            border: 1px solid var(--border-color);
+            opacity: 1;
+          }
+        }
+
+        .nested-chat-record-title {
+          padding: 13px 15px 9px;
+          font-size: 14px;
+          font-weight: 600;
+          color: var(--text-primary);
+        }
+
+        .nested-chat-record-list {
+          padding: 0 15px 11px;
+          display: flex;
+          flex-direction: column;
+          gap: 4px;
+          border-bottom: 1px solid var(--border-color);
+        }
+
+        .nested-chat-record-line {
+          font-size: 13px;
+          line-height: 1.45;
+          color: var(--text-secondary);
+          white-space: nowrap;
+          overflow: hidden;
+          text-overflow: ellipsis;
+        }
+
+        .nested-chat-record-footer {
+          padding: 8px 15px 11px;
+          font-size: 12px;
+          color: var(--text-tertiary);
        }
      }
    }
--- a/src/pages/ChatHistoryPage.tsx
+++ b/src/pages/ChatHistoryPage.tsx
@@ -3,10 +3,13 @@ import { useParams, useLocation } from 'react-router-dom'
 import { ChatRecordItem } from '../types/models'
 import TitleBar from '../components/TitleBar'
 import { ErrorBoundary } from '../components/ErrorBoundary'
+import { Avatar } from '../components/Avatar'
 import './ChatHistoryPage.scss'

+const forwardedImageCache = new Map<string, string>()
+
 export default function ChatHistoryPage() {
-  const params = useParams<{ sessionId: string; messageId: string }>()
+  const params = useParams<{ sessionId: string; messageId: string; payloadId: string }>()
  const location = useLocation()
  const [recordList, setRecordList] = useState<ChatRecordItem[]>([])
  const [loading, setLoading] = useState(true)
@@ -30,64 +33,212 @@ export default function ChatHistoryPage() {
      .replace(/&#39;/g, "'")
  }

+  const extractTopLevelXmlElements = (source: string, tagName: string): Array<{ attrs: string; inner: string }> => {
+    const xml = source || ''
+    if (!xml) return []
+
+    const pattern = new RegExp(`<(/?)${tagName}\\b([^>]*)>`, 'gi')
+    const result: Array<{ attrs: string; inner: string }> = []
+    let match: RegExpExecArray | null
+    let depth = 0
+    let openEnd = -1
+    let openStart = -1
+    let openAttrs = ''
+
+    while ((match = pattern.exec(xml)) !== null) {
+      const isClosing = match[1] === '/'
+      const attrs = match[2] || ''
+      const rawTag = match[0] || ''
+      const selfClosing = !isClosing && /\/\s*>$/.test(rawTag)
+
+      if (!isClosing) {
+        if (depth === 0) {
+          openStart = match.index
+          openEnd = pattern.lastIndex
+          openAttrs = attrs
+        }
+        if (!selfClosing) {
+          depth += 1
+        } else if (depth === 0 && openEnd >= 0) {
+          result.push({ attrs: openAttrs, inner: '' })
+          openStart = -1
+          openEnd = -1
+          openAttrs = ''
+        }
+        continue
+      }
+
+      if (depth <= 0) continue
+      depth -= 1
+      if (depth === 0 && openEnd >= 0 && openStart >= 0) {
+        result.push({
+          attrs: openAttrs,
+          inner: xml.slice(openEnd, match.index)
+        })
+        openStart = -1
+        openEnd = -1
+        openAttrs = ''
+      }
+    }
+
+    return result
+  }
+
+  const parseChatRecordDataItem = (body: string, attrs = ''): ChatRecordItem | null => {
+    const datatypeMatch = /datatype\s*=\s*["']?(\d+)["']?/i.exec(attrs || '')
+    const datatype = datatypeMatch ? parseInt(datatypeMatch[1], 10) : parseInt(extractXmlValue(body, 'datatype') || '0', 10)
+
+    const sourcename = decodeHtmlEntities(extractXmlValue(body, 'sourcename')) || ''
+    const sourcetime = extractXmlValue(body, 'sourcetime') || ''
+    const sourceheadurl = extractXmlValue(body, 'sourceheadurl') || undefined
+    const datadesc = decodeHtmlEntities(extractXmlValue(body, 'datadesc') || extractXmlValue(body, 'content')) || undefined
+    const datatitle = decodeHtmlEntities(extractXmlValue(body, 'datatitle')) || undefined
+    const fileext = extractXmlValue(body, 'fileext') || undefined
+    const datasize = parseInt(extractXmlValue(body, 'datasize') || '0', 10) || undefined
+    const messageuuid = extractXmlValue(body, 'messageuuid') || undefined
+
+    const dataurl = decodeHtmlEntities(extractXmlValue(body, 'dataurl')) || undefined
+    const datathumburl = decodeHtmlEntities(
+      extractXmlValue(body, 'datathumburl') ||
+      extractXmlValue(body, 'thumburl') ||
+      extractXmlValue(body, 'cdnthumburl')
+    ) || undefined
+    const datacdnurl = decodeHtmlEntities(
+      extractXmlValue(body, 'datacdnurl') ||
+      extractXmlValue(body, 'cdnurl') ||
+      extractXmlValue(body, 'cdndataurl')
+    ) || undefined
+    const cdndatakey = decodeHtmlEntities(extractXmlValue(body, 'cdndatakey')) || undefined
+    const cdnthumbkey = decodeHtmlEntities(extractXmlValue(body, 'cdnthumbkey')) || undefined
+    const aeskey = decodeHtmlEntities(extractXmlValue(body, 'aeskey') || extractXmlValue(body, 'qaeskey')) || undefined
+    const md5 = extractXmlValue(body, 'md5') || extractXmlValue(body, 'datamd5') || undefined
+    const fullmd5 = extractXmlValue(body, 'fullmd5') || undefined
+    const thumbfullmd5 = extractXmlValue(body, 'thumbfullmd5') || undefined
+    const srcMsgLocalid = parseInt(extractXmlValue(body, 'srcMsgLocalid') || '0', 10) || undefined
+    const imgheight = parseInt(extractXmlValue(body, 'imgheight') || '0', 10) || undefined
+    const imgwidth = parseInt(extractXmlValue(body, 'imgwidth') || '0', 10) || undefined
+    const duration = parseInt(extractXmlValue(body, 'duration') || '0', 10) || undefined
+    const nestedRecordXml = extractXmlValue(body, 'recordxml') || undefined
+    const chatRecordTitle = decodeHtmlEntities(
+      (nestedRecordXml && extractXmlValue(nestedRecordXml, 'title')) ||
+      datatitle ||
+      ''
+    ) || undefined
+    const chatRecordDesc = decodeHtmlEntities(
+      (nestedRecordXml && extractXmlValue(nestedRecordXml, 'desc')) ||
+      datadesc ||
+      ''
+    ) || undefined
+    const chatRecordList =
+      datatype === 17 && nestedRecordXml
+        ? parseChatRecordContainer(nestedRecordXml)
+        : undefined
+
+    if (!(datatype || sourcename || datadesc || datatitle || messageuuid || srcMsgLocalid)) return null
+
+    return {
+      datatype: Number.isFinite(datatype) ? datatype : 0,
+      sourcename,
+      sourcetime,
+      sourceheadurl,
+      datadesc,
+      datatitle,
+      fileext,
+      datasize,
+      messageuuid,
+      dataurl,
+      datathumburl,
+      datacdnurl,
+      cdndatakey,
+      cdnthumbkey,
+      aeskey,
+      md5,
+      fullmd5,
+      thumbfullmd5,
+      srcMsgLocalid,
+      imgheight,
+      imgwidth,
+      duration,
+      chatRecordTitle,
+      chatRecordDesc,
+      chatRecordList
+    }
+  }
+
+  const parseChatRecordContainer = (containerXml: string): ChatRecordItem[] => {
+    const source = containerXml || ''
+    if (!source) return []
+
+    const segments: string[] = [source]
+    const decodedContainer = decodeHtmlEntities(source)
+    if (decodedContainer && decodedContainer !== source) {
+      segments.push(decodedContainer)
+    }
+
+    const cdataRegex = /<!\[CDATA\[([\s\S]*?)\]\]>/g
+    let cdataMatch: RegExpExecArray | null
+    while ((cdataMatch = cdataRegex.exec(source)) !== null) {
+      const cdataInner = cdataMatch[1] || ''
+      if (!cdataInner) continue
+      segments.push(cdataInner)
+      const decodedInner = decodeHtmlEntities(cdataInner)
+      if (decodedInner && decodedInner !== cdataInner) {
+        segments.push(decodedInner)
+      }
+    }
+
+    const items: ChatRecordItem[] = []
+    const dedupe = new Set<string>()
+    for (const segment of segments) {
+      if (!segment) continue
+      const dataItems = extractTopLevelXmlElements(segment, 'dataitem')
+      for (const dataItem of dataItems) {
+        const item = parseChatRecordDataItem(dataItem.inner || '', dataItem.attrs || '')
+        if (!item) continue
+        const key = `${item.datatype}|${item.sourcename}|${item.sourcetime}|${item.datadesc || ''}|${item.datatitle || ''}|${item.messageuuid || ''}`
+        if (!dedupe.has(key)) {
+          dedupe.add(key)
+          items.push(item)
+        }
+      }
+    }
+
+    if (items.length > 0) return items
+    const fallback = parseChatRecordDataItem(source, '')
+    return fallback ? [fallback] : []
+  }
+
  // 前端兜底解析合并转发聊天记录
  const parseChatHistory = (content: string): ChatRecordItem[] | undefined => {
    try {
-      const type = extractXmlValue(content, 'type')
-      if (type !== '19') return undefined
+      const decodedContent = decodeHtmlEntities(content) || content
+      const type = extractXmlValue(decodedContent, 'type')
+      if (type !== '19' && !decodedContent.includes('<recorditem')) return undefined

-      const match = /<recorditem>[\s\S]*?<!\[CDATA\[([\s\S]*?)\]\]>[\s\S]*?<\/recorditem>/.exec(content)
-      if (!match) return undefined
-
-      const innerXml = match[1]
      const items: ChatRecordItem[] = []
-      const itemRegex = /<dataitem\s+(.*?)>([\s\S]*?)<\/dataitem>/g
-      let itemMatch: RegExpExecArray | null
+      const dedupe = new Set<string>()
+      const recordItemRegex = /<recorditem>([\s\S]*?)<\/recorditem>/gi
+      let recordItemMatch: RegExpExecArray | null
+      while ((recordItemMatch = recordItemRegex.exec(decodedContent)) !== null) {
+        const parsedItems = parseChatRecordContainer(recordItemMatch[1] || '')
+        for (const item of parsedItems) {
+          const key = `${item.datatype}|${item.sourcename}|${item.sourcetime}|${item.datadesc || ''}|${item.datatitle || ''}|${item.messageuuid || ''}`
+          if (!dedupe.has(key)) {
+            dedupe.add(key)
+            items.push(item)
+          }
+        }
+      }

-      while ((itemMatch = itemRegex.exec(innerXml)) !== null) {
-        const attrs = itemMatch[1]
-        const body = itemMatch[2]
-
-        const datatypeMatch = /datatype="(\d+)"/.exec(attrs)
-        const datatype = datatypeMatch ? parseInt(datatypeMatch[1]) : 0
-
-        const sourcename = extractXmlValue(body, 'sourcename')
-        const sourcetime = extractXmlValue(body, 'sourcetime')
-        const sourceheadurl = extractXmlValue(body, 'sourceheadurl')
-        const datadesc = extractXmlValue(body, 'datadesc')
-        const datatitle = extractXmlValue(body, 'datatitle')
-        const fileext = extractXmlValue(body, 'fileext')
-        const datasize = parseInt(extractXmlValue(body, 'datasize') || '0')
-        const messageuuid = extractXmlValue(body, 'messageuuid')
-
-        const dataurl = extractXmlValue(body, 'dataurl')
-        const datathumburl = extractXmlValue(body, 'datathumburl') || extractXmlValue(body, 'thumburl')
-        const datacdnurl = extractXmlValue(body, 'datacdnurl') || extractXmlValue(body, 'cdnurl')
-        const aeskey = extractXmlValue(body, 'aeskey') || extractXmlValue(body, 'qaeskey')
-        const md5 = extractXmlValue(body, 'md5') || extractXmlValue(body, 'datamd5')
-        const imgheight = parseInt(extractXmlValue(body, 'imgheight') || '0')
-        const imgwidth = parseInt(extractXmlValue(body, 'imgwidth') || '0')
-        const duration = parseInt(extractXmlValue(body, 'duration') || '0')
-
-        items.push({
-          datatype,
-          sourcename,
-          sourcetime,
-          sourceheadurl,
-          datadesc: decodeHtmlEntities(datadesc),
-          datatitle: decodeHtmlEntities(datatitle),
-          fileext,
-          datasize,
-          messageuuid,
-          dataurl: decodeHtmlEntities(dataurl),
-          datathumburl: decodeHtmlEntities(datathumburl),
-          datacdnurl: decodeHtmlEntities(datacdnurl),
-          aeskey: decodeHtmlEntities(aeskey),
-          md5,
-          imgheight,
-          imgwidth,
-          duration
-        })
+      if (items.length === 0 && decodedContent.includes('<dataitem')) {
+        const parsedItems = parseChatRecordContainer(decodedContent)
+        for (const item of parsedItems) {
+          const key = `${item.datatype}|${item.sourcename}|${item.sourcetime}|${item.datadesc || ''}|${item.datatitle || ''}|${item.messageuuid || ''}`
+          if (!dedupe.has(key)) {
+            dedupe.add(key)
+            items.push(item)
+          }
+        }
      }

      return items.length > 0 ? items : undefined
@@ -115,9 +266,34 @@ export default function ChatHistoryPage() {
    return { sid: '', mid: '' }
  }

+  const ids = getIds()
+  const payloadId = params.payloadId || (() => {
+    const match = /^\/chat-history-inline\/([^/]+)/.exec(location.pathname)
+    return match ? match[1] : ''
+  })()
+
  useEffect(() => {
    const loadData = async () => {
-      const { sid, mid } = getIds()
+      if (payloadId) {
+        try {
+          const result = await window.electronAPI.window.getChatHistoryPayload(payloadId)
+          if (result.success && result.payload) {
+            setRecordList(Array.isArray(result.payload.recordList) ? result.payload.recordList : [])
+            setTitle(result.payload.title || '聊天记录')
+            setError('')
+          } else {
+            setError(result.error || '聊天记录载荷不存在')
+          }
+        } catch (e) {
+          console.error(e)
+          setError('加载详情失败')
+        } finally {
+          setLoading(false)
+        }
+        return
+      }
+
+      const { sid, mid } = ids
      if (!sid || !mid) {
        setError('无效的聊天记录链接')
        setLoading(false)
@@ -153,7 +329,7 @@ export default function ChatHistoryPage() {
      }
    }
    loadData()
-  }, [params.sessionId, params.messageId, location.pathname])
+  }, [ids.mid, ids.sid, location.pathname, payloadId])

  return (
    <div className="chat-history-page">
@@ -168,7 +344,7 @@ export default function ChatHistoryPage() {
        ) : (
          recordList.map((item, i) => (
            <ErrorBoundary key={i} fallback={<div className="history-item error-item">消息解析失败</div>}>
-              <HistoryItem item={item} />
+              <HistoryItem item={item} sessionId={ids.sid} />
            </ErrorBoundary>
          ))
        )}
@@ -177,9 +353,198 @@ export default function ChatHistoryPage() {
  )
 }

-function HistoryItem({ item }: { item: ChatRecordItem }) {
-  const [imageError, setImageError] = useState(false)
-  
+function detectImageMimeFromBase64(base64: string): string {
+  try {
+    const head = window.atob(base64.slice(0, 48))
+    const bytes = new Uint8Array(head.length)
+    for (let i = 0; i < head.length; i++) {
+      bytes[i] = head.charCodeAt(i)
+    }
+    if (bytes[0] === 0x47 && bytes[1] === 0x49 && bytes[2] === 0x46) return 'image/gif'
+    if (bytes[0] === 0x89 && bytes[1] === 0x50 && bytes[2] === 0x4E && bytes[3] === 0x47) return 'image/png'
+    if (bytes[0] === 0xFF && bytes[1] === 0xD8 && bytes[2] === 0xFF) return 'image/jpeg'
+    if (
+      bytes[0] === 0x52 && bytes[1] === 0x49 && bytes[2] === 0x46 && bytes[3] === 0x46 &&
+      bytes[8] === 0x57 && bytes[9] === 0x45 && bytes[10] === 0x42 && bytes[11] === 0x50
+    ) {
+      return 'image/webp'
+    }
+  } catch { }
+  return 'image/jpeg'
+}
+
+function normalizeChatRecordText(value?: string): string {
+  return String(value || '')
+    .replace(/\u00a0/g, ' ')
+    .replace(/\s+/g, ' ')
+    .trim()
+}
+
+function getChatRecordPreviewText(item: ChatRecordItem): string {
+  const text = normalizeChatRecordText(item.datadesc) || normalizeChatRecordText(item.datatitle)
+  if (item.datatype === 17) {
+    return normalizeChatRecordText(item.chatRecordTitle) || normalizeChatRecordText(item.datatitle) || '聊天记录'
+  }
+  if (item.datatype === 2 || item.datatype === 3) return '[图片]'
+  if (item.datatype === 43) return '[视频]'
+  if (item.datatype === 34) return '[语音]'
+  if (item.datatype === 47) return '[表情]'
+  return text || '[媒体消息]'
+}
+
+function ForwardedImage({ item, sessionId }: { item: ChatRecordItem; sessionId: string }) {
+  const cacheKey =
+    item.thumbfullmd5 ||
+    item.fullmd5 ||
+    item.md5 ||
+    item.messageuuid ||
+    item.datathumburl ||
+    item.datacdnurl ||
+    item.dataurl ||
+    `local:${item.srcMsgLocalid || 0}`
+  const [localPath, setLocalPath] = useState<string | undefined>(() => forwardedImageCache.get(cacheKey))
+  const [loading, setLoading] = useState(!forwardedImageCache.has(cacheKey))
+  const [error, setError] = useState(false)
+
+  useEffect(() => {
+    if (localPath || error) return
+
+    let cancelled = false
+    const candidateMd5s = Array.from(new Set([
+      item.thumbfullmd5,
+      item.fullmd5,
+      item.md5
+    ].filter(Boolean) as string[]))
+
+    const load = async () => {
+      setLoading(true)
+
+      for (const imageMd5 of candidateMd5s) {
+        const cached = await window.electronAPI.image.resolveCache({ imageMd5 })
+        if (cached.success && cached.localPath) {
+          if (!cancelled) {
+            forwardedImageCache.set(cacheKey, cached.localPath)
+            setLocalPath(cached.localPath)
+            setLoading(false)
+          }
+          return
+        }
+      }
+
+      for (const imageMd5 of candidateMd5s) {
+        const decrypted = await window.electronAPI.image.decrypt({ imageMd5 })
+        if (decrypted.success && decrypted.localPath) {
+          if (!cancelled) {
+            forwardedImageCache.set(cacheKey, decrypted.localPath)
+            setLocalPath(decrypted.localPath)
+            setLoading(false)
+          }
+          return
+        }
+      }
+
+      if (sessionId && item.srcMsgLocalid) {
+        const fallback = await window.electronAPI.chat.getImageData(sessionId, String(item.srcMsgLocalid))
+        if (fallback.success && fallback.data) {
+          const dataUrl = `data:${detectImageMimeFromBase64(fallback.data)};base64,${fallback.data}`
+          if (!cancelled) {
+            forwardedImageCache.set(cacheKey, dataUrl)
+            setLocalPath(dataUrl)
+            setLoading(false)
+          }
+          return
+        }
+      }
+
+      const remoteSrc = item.dataurl || item.datathumburl || item.datacdnurl
+      if (remoteSrc && /^https?:\/\//i.test(remoteSrc)) {
+        if (!cancelled) {
+          setLocalPath(remoteSrc)
+          setLoading(false)
+        }
+        return
+      }
+
+      if (!cancelled) {
+        setError(true)
+        setLoading(false)
+      }
+    }
+
+    load().catch(() => {
+      if (!cancelled) {
+        setError(true)
+        setLoading(false)
+      }
+    })
+
+    return () => {
+      cancelled = true
+    }
+  }, [cacheKey, error, item.dataurl, item.datacdnurl, item.datathumburl, item.fullmd5, item.md5, item.messageuuid, item.srcMsgLocalid, item.thumbfullmd5, localPath, sessionId])
+
+  if (localPath) {
+    return (
+      <div className="media-content">
+        <img src={localPath} alt="图片" referrerPolicy="no-referrer" />
+      </div>
+    )
+  }
+
+  if (loading) {
+    return <div className="media-tip">图片加载中...</div>
+  }
+
+  if (error) {
+    return <div className="media-tip">图片未索引到本地缓存</div>
+  }
+
+  return <div className="media-placeholder">[图片]</div>
+}
+
+function NestedChatRecordCard({ item, sessionId }: { item: ChatRecordItem; sessionId: string }) {
+  const previewItems = (item.chatRecordList || []).slice(0, 3)
+  const title = normalizeChatRecordText(item.chatRecordTitle) || normalizeChatRecordText(item.datatitle) || '聊天记录'
+  const description = normalizeChatRecordText(item.chatRecordDesc) || normalizeChatRecordText(item.datadesc)
+  const canOpen = Boolean(sessionId && item.chatRecordList && item.chatRecordList.length > 0)
+
+  const handleOpen = () => {
+    if (!canOpen) return
+    window.electronAPI.window.openChatHistoryPayloadWindow({
+      sessionId,
+      title,
+      recordList: item.chatRecordList || []
+    }).catch(() => { })
+  }
+
+  return (
+    <button
+      type="button"
+      className={`nested-chat-record-card${canOpen ? ' clickable' : ''}`}
+      onClick={handleOpen}
+      disabled={!canOpen}
+      title={canOpen ? '点击打开聊天记录' : undefined}
+    >
+      <div className="nested-chat-record-title">{title}</div>
+      {previewItems.length > 0 ? (
+        <div className="nested-chat-record-list">
+          {previewItems.map((previewItem, index) => (
+            <div key={`${previewItem.messageuuid || previewItem.srcMsgLocalid || index}`} className="nested-chat-record-line">
+              {getChatRecordPreviewText(previewItem)}
+            </div>
+          ))}
+        </div>
+      ) : description ? (
+        <div className="nested-chat-record-list">
+          <div className="nested-chat-record-line">{description}</div>
+        </div>
+      ) : null}
+      <div className="nested-chat-record-footer">聊天记录</div>
+    </button>
+  )
+}
+
+function HistoryItem({ item, sessionId }: { item: ChatRecordItem; sessionId: string }) {
  // sourcetime 在合并转发里有两种格式：
  // 1) 时间戳（秒） 2) 已格式化的字符串 "2026-01-21 09:56:46"
  let time = ''
@@ -191,31 +556,18 @@ function HistoryItem({ item }: { item: ChatRecordItem }) {
    }
  }

+  const senderDisplayName = item.sourcename ?? '未知发送者'
+
  const renderContent = () => {
    if (item.datatype === 1) {
      // 文本消息
      return <div className="text-content">{item.datadesc || ''}</div>
    }
-    if (item.datatype === 3) {
-      // 图片
-      const src = item.datathumburl || item.datacdnurl
-      if (src) {
-        return (
-          <div className="media-content">
-            {imageError ? (
-              <div className="media-tip">图片无法加载</div>
-            ) : (
-              <img 
-                src={src} 
-                alt="图片" 
-                referrerPolicy="no-referrer" 
-                onError={() => setImageError(true)} 
-              />
-            )}
-          </div>
-        )
-      }
-      return <div className="media-placeholder">[图片]</div>
+    if (item.datatype === 2 || item.datatype === 3) {
+      return <ForwardedImage item={item} sessionId={sessionId} />
+    }
+    if (item.datatype === 17) {
+      return <NestedChatRecordCard item={item} sessionId={sessionId} />
    }
    if (item.datatype === 43) {
      return <div className="media-placeholder">[视频] {item.datatitle}</div>
@@ -229,21 +581,20 @@ function HistoryItem({ item }: { item: ChatRecordItem }) {

  return (
    <div className="history-item">
-      <div className="avatar">
-        {item.sourceheadurl ? (
-          <img src={item.sourceheadurl} alt="" referrerPolicy="no-referrer" />
-        ) : (
-          <div className="avatar-placeholder">
-            {item.sourcename?.slice(0, 1)}
-          </div>
-        )}
+      <div className="history-avatar">
+        <Avatar
+          src={item.sourceheadurl}
+          name={senderDisplayName}
+          size={36}
+          className="avatar-inner"
+        />
      </div>
      <div className="content-wrapper">
        <div className="header">
-          <span className="sender">{item.sourcename || '未知发送者'}</span>
+          <span className="sender">{senderDisplayName}</span>
          <span className="time">{time}</span>
        </div>
-        <div className={`bubble ${item.datatype === 3 ? 'image-bubble' : ''}`}>
+        <div className={`bubble ${(item.datatype === 2 || item.datatype === 3) ? 'image-bubble' : ''}`}>
          {renderContent()}
        </div>
      </div>
--- a/src/pages/ChatPage.scss
+++ b/src/pages/ChatPage.scss
@@ -566,7 +566,8 @@
        flex: 1;
        background: var(--chat-pattern);
        background-color: var(--bg-secondary);
-        padding: 20px 24px;
+        padding: 20px 24px 112px;
+        padding-bottom: calc(112px + env(safe-area-inset-bottom));

        &::-webkit-scrollbar {
          width: 6px;
@@ -600,7 +601,8 @@
      }

      .message-wrapper {
-        margin-bottom: 16px;
+        box-sizing: border-box;
+        padding-bottom: 16px;
      }

      .message-bubble {
@@ -1748,7 +1750,8 @@
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
-  padding: 20px 24px;
+  padding: 20px 24px 112px;
+  padding-bottom: calc(112px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 16px;
@@ -1777,6 +1780,10 @@
  }
 }

+.message-virtuoso {
+  width: 100%;
+}
+
 .loading-messages.loading-overlay {
  position: absolute;
  inset: 0;
@@ -1834,9 +1841,9 @@

 // 回到底部按钮
 .scroll-to-bottom {
-  position: sticky;
+  position: absolute;
  bottom: 20px;
-  align-self: center;
+  left: 50%;
  padding: 8px 16px;
  border-radius: 20px;
  background: var(--bg-secondary);
@@ -1851,13 +1858,13 @@
  font-size: 13px;
  z-index: 10;
  opacity: 0;
-  transform: translateY(20px);
+  transform: translate(-50%, 20px);
  pointer-events: none;
  transition: all 0.3s ease;

  &.show {
    opacity: 1;
-    transform: translateY(0);
+    transform: translate(-50%, 0);
    pointer-events: auto;
  }

@@ -1894,6 +1901,8 @@
 .message-wrapper {
  display: flex;
  flex-direction: column;
+  box-sizing: border-box;
+  padding-bottom: 16px;
  -webkit-app-region: no-drag;

  &.sent {
@@ -2060,6 +2069,10 @@
  object-fit: contain;
 }

+.emoji-message-wrapper {
+  display: inline-block;
+}
+
 .emoji-loading {
  width: 90px;
  height: 90px;
@@ -3294,13 +3307,89 @@

 // 聊天记录消息 (合并转发)
 .chat-record-message {
-  background: var(--card-inner-bg) !important;
-  border: 1px solid var(--border-color) !important;
-  transition: opacity 0.2s ease;
+  width: 300px;
+  min-width: 240px;
+  max-width: 336px;
+  background: color-mix(in srgb, var(--bg-secondary) 97%, #f5f7fb);
+  border: 1px solid var(--border-color);
+  border-radius: 16px;
+  overflow: hidden;
+  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
+  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  cursor: pointer;
+  padding: 0;

  &:hover {
-    opacity: 0.85;
+    transform: translateY(-1px);
+    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
+    border-color: color-mix(in srgb, var(--primary) 28%, var(--border-color));
+  }
+
+  .chat-record-title {
+    padding: 13px 16px 6px;
+    font-size: 13px;
+    font-weight: 600;
+    color: var(--text-primary);
+    line-height: 1.45;
+    display: -webkit-box;
+    -webkit-line-clamp: 2;
+    line-clamp: 2;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+  }
+
+  .chat-record-meta-line {
+    padding: 0 16px 10px;
+    font-size: 11px;
+    color: var(--text-tertiary);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+
+  .chat-record-list {
+    padding: 0 16px 11px;
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+    max-height: 92px;
+    overflow: hidden;
+    border-bottom: 1px solid var(--border-color);
+  }
+
+  .chat-record-item {
+    font-size: 12px;
+    line-height: 1.45;
+    color: var(--text-secondary);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+
+  .source-name {
+    color: currentColor;
+    opacity: 0.92;
+    font-weight: 500;
+    margin-right: 4px;
+  }
+
+  .chat-record-more {
+    font-size: 11px;
+    color: var(--text-tertiary);
+  }
+
+  .chat-record-desc {
+    padding: 0 16px 11px;
+    font-size: 12px;
+    line-height: 1.45;
+    color: var(--text-secondary);
+    border-bottom: 1px solid var(--border-color);
+  }
+
+  .chat-record-footer {
+    padding: 8px 16px 10px;
+    font-size: 11px;
+    color: var(--text-tertiary);
  }
 }

@@ -3374,75 +3463,6 @@
  }
 }

-// 聊天记录消息 - 复用 link-message 基础样式
-.chat-record-message {
-  cursor: pointer;
-
-  .link-header {
-    padding-bottom: 4px;
-  }
-
-  .chat-record-preview {
-    display: flex;
-    flex-direction: column;
-    gap: 4px;
-    flex: 1;
-    min-width: 0;
-  }
-
-  .chat-record-meta-line {
-    font-size: 11px;
-    color: var(--text-tertiary);
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-  }
-
-  .chat-record-list {
-    display: flex;
-    flex-direction: column;
-    gap: 2px;
-    max-height: 70px;
-    overflow: hidden;
-  }
-
-  .chat-record-item {
-    font-size: 12px;
-    color: var(--text-secondary);
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-  }
-
-  .source-name {
-    color: var(--text-primary);
-    font-weight: 500;
-    margin-right: 4px;
-  }
-
-  .chat-record-more {
-    font-size: 12px;
-    color: var(--primary);
-  }
-
-  .chat-record-desc {
-    font-size: 12px;
-    color: var(--text-secondary);
-  }
-
-  .chat-record-icon {
-    width: 40px;
-    height: 40px;
-    border-radius: 10px;
-    background: var(--primary-gradient);
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    color: #fff;
-    flex-shrink: 0;
-  }
-}
-
 // 小程序消息
 .miniapp-message {
  display: flex;
@@ -3539,23 +3559,18 @@
 .message-bubble.sent {

  .card-message,
-  .chat-record-message,
  .miniapp-message,
  .appmsg-rich-card {
    background: var(--sent-card-bg);

    .card-name,
    .miniapp-title,
-    .source-name,
    .link-title {
      color: white;
    }

    .card-label,
    .miniapp-label,
-    .chat-record-item,
-    .chat-record-meta-line,
-    .chat-record-desc,
    .link-desc,
    .appmsg-url-line {
      color: rgba(255, 255, 255, 0.8);
@@ -3563,14 +3578,10 @@

    .card-icon,
    .miniapp-icon,
-    .chat-record-icon {
+    .link-thumb-placeholder {
      color: white;
    }

-    .chat-record-more {
-      color: rgba(255, 255, 255, 0.9);
-    }
-
    .appmsg-meta-badge {
      color: rgba(255, 255, 255, 0.92);
      background: rgba(255, 255, 255, 0.12);
@@ -3651,11 +3662,11 @@
 // 批量转写按钮
 .batch-transcribe-btn {
  &:hover:not(:disabled) {
-    color: var(--primary-color);
+    color: var(--primary);
  }

  &.transcribing {
-    color: var(--primary-color);
+    color: var(--primary);
    cursor: pointer;
    opacity: 1 !important;
  }
@@ -3679,7 +3690,7 @@
    border-bottom: 1px solid var(--border-color);

    svg {
-      color: var(--primary-color);
+      color: var(--primary);
    }

    h3 {
@@ -3700,6 +3711,36 @@
      line-height: 1.6;
    }

+    .batch-task-switch {
+      display: grid;
+      grid-template-columns: 1fr 1fr;
+      gap: 0.5rem;
+      margin-bottom: 1rem;
+
+      .batch-task-btn {
+        border: 1px solid var(--border-color);
+        background: var(--bg-secondary);
+        color: var(--text-secondary);
+        border-radius: 8px;
+        padding: 0.55rem 0.75rem;
+        font-size: 13px;
+        cursor: pointer;
+        transition: all 0.2s;
+
+        &:hover {
+          border-color: color-mix(in srgb, var(--primary) 50%, var(--border-color));
+          color: var(--text-primary);
+        }
+
+        &.active {
+          border-color: var(--primary);
+          color: var(--primary);
+          background: color-mix(in srgb, var(--primary) 10%, var(--bg-primary));
+          box-shadow: 0 0 0 1px color-mix(in srgb, var(--primary) 25%, transparent);
+        }
+      }
+    }
+
    .batch-dates-list-wrap {
      margin-bottom: 1rem;
      background: var(--bg-tertiary);
@@ -3717,7 +3758,7 @@
        .batch-dates-btn {
          padding: 0.35rem 0.75rem;
          font-size: 12px;
-          color: var(--primary-color);
+          color: var(--primary);
          background: transparent;
          border: 1px solid var(--border-color);
          border-radius: 6px;
@@ -3726,7 +3767,7 @@

          &:hover {
            background: var(--bg-hover);
-            border-color: var(--primary-color);
+            border-color: var(--primary);
          }
        }
      }
@@ -3759,9 +3800,14 @@
          }

          input[type="checkbox"] {
-            accent-color: var(--primary-color);
+            accent-color: var(--primary);
            cursor: pointer;
            flex-shrink: 0;
+
+            &:focus-visible {
+              outline: 2px solid color-mix(in srgb, var(--primary) 45%, transparent);
+              outline-offset: 1px;
+            }
          }

          .batch-date-label {
@@ -3804,7 +3850,7 @@
        .value {
          font-size: 14px;
          font-weight: 600;
-          color: var(--primary-color);
+          color: var(--primary);
        }

        .batch-concurrency-field {
@@ -3930,7 +3976,7 @@

      &.btn-primary,
      &.batch-transcribe-start-btn {
-        background: var(--primary-color);
+        background: var(--primary);
        color: #000;

        &:hover {
@@ -4177,43 +4223,6 @@
  }
 }

-// 聊天记录消息外观
-.chat-record-message {
-  background: var(--card-inner-bg) !important;
-  border: 1px solid var(--border-color);
-  border-radius: 8px;
-  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
-
-  &:hover {
-    background: var(--bg-hover) !important;
-  }
-
-  .chat-record-list {
-    font-size: 13px;
-    color: var(--text-tertiary);
-    line-height: 1.6;
-    margin-top: 8px;
-    padding-top: 8px;
-    border-top: 1px solid var(--border-color);
-
-    .chat-record-item {
-      white-space: nowrap;
-      overflow: hidden;
-      text-overflow: ellipsis;
-
-      .source-name {
-        color: var(--text-secondary);
-      }
-    }
-  }
-
-  .chat-record-more {
-    font-size: 12px;
-    color: var(--text-tertiary);
-    margin-top: 4px;
-  }
-}
-
 // 公众号文章图文消息外观 (大图模式)
 .official-message {
  display: flex;
@@ -4800,6 +4809,18 @@
  color: var(--text-tertiary);
  background: var(--bg-secondary);
  font-weight: 500;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+
+  .search-phase-hint {
+    color: var(--primary);
+    font-weight: 400;
+
+    &.done {
+      color: var(--text-tertiary);
+    }
+  }
 }

 // 全局消息搜索结果面板
--- a/src/pages/ChatPage.tsx
+++ b/src/pages/ChatPage.tsx
--- a/src/pages/ExportPage.tsx
+++ b/src/pages/ExportPage.tsx
@@ -1,5 +1,5 @@
 import { memo, useCallback, useEffect, useMemo, useRef, useState, type CSSProperties, type PointerEvent, type UIEvent, type WheelEvent } from 'react'
-import { useLocation } from 'react-router-dom'
+import { useLocation, useNavigate } from 'react-router-dom'
 import { Virtuoso, type VirtuosoHandle } from 'react-virtuoso'
 import { createPortal } from 'react-dom'
 import {
@@ -44,6 +44,7 @@ import {
  subscribeBackgroundTasks
 } from '../services/backgroundTaskMonitor'
 import { useContactTypeCountsStore } from '../stores/contactTypeCountsStore'
+import { useChatStore } from '../stores/chatStore'
 import { SnsPostItem } from '../components/Sns/SnsPostItem'
 import { ContactSnsTimelineDialog } from '../components/Sns/ContactSnsTimelineDialog'
 import { ExportDateRangeDialog } from '../components/Export/ExportDateRangeDialog'
@@ -104,6 +105,16 @@ interface TaskProgress {
  phaseLabel: string
  phaseProgress: number
  phaseTotal: number
+  exportedMessages: number
+  estimatedTotalMessages: number
+  collectedMessages: number
+  writtenFiles: number
+  mediaDoneFiles: number
+  mediaCacheHitFiles: number
+  mediaCacheMissFiles: number
+  mediaCacheFillFiles: number
+  mediaDedupReuseFiles: number
+  mediaBytesWritten: number
 }

 type TaskPerfStage = 'collect' | 'build' | 'write' | 'other'
@@ -166,7 +177,7 @@ interface ExportDialogState {
 const defaultTxtColumns = ['index', 'time', 'senderRole', 'messageType', 'content']
 const DETAIL_PRECISE_REFRESH_COOLDOWN_MS = 10 * 60 * 1000
 const SESSION_MEDIA_METRIC_PREFETCH_ROWS = 10
-const SESSION_MEDIA_METRIC_BATCH_SIZE = 12
+const SESSION_MEDIA_METRIC_BATCH_SIZE = 8
 const SESSION_MEDIA_METRIC_BACKGROUND_FEED_SIZE = 48
 const SESSION_MEDIA_METRIC_BACKGROUND_FEED_INTERVAL_MS = 120
 const SESSION_MEDIA_METRIC_CACHE_FLUSH_DELAY_MS = 1200
@@ -254,7 +265,17 @@ const createEmptyProgress = (): TaskProgress => ({
  phase: '',
  phaseLabel: '',
  phaseProgress: 0,
-  phaseTotal: 0
+  phaseTotal: 0,
+  exportedMessages: 0,
+  estimatedTotalMessages: 0,
+  collectedMessages: 0,
+  writtenFiles: 0,
+  mediaDoneFiles: 0,
+  mediaCacheHitFiles: 0,
+  mediaCacheMissFiles: 0,
+  mediaCacheFillFiles: 0,
+  mediaDedupReuseFiles: 0,
+  mediaBytesWritten: 0
 })

 const createEmptyTaskPerformance = (): TaskPerformance => ({
@@ -1280,6 +1301,45 @@ const TaskCenterModal = memo(function TaskCenterModal({
                  completedSessionTotal,
                  (task.settledSessionIds || []).length
                )
+                const exportedMessages = Math.max(0, Math.floor(task.progress.exportedMessages || 0))
+                const estimatedTotalMessages = Math.max(0, Math.floor(task.progress.estimatedTotalMessages || 0))
+                const collectedMessages = Math.max(0, Math.floor(task.progress.collectedMessages || 0))
+                const messageProgressLabel = estimatedTotalMessages > 0
+                  ? `已导出 ${Math.min(exportedMessages, estimatedTotalMessages)}/${estimatedTotalMessages} 条`
+                  : `已导出 ${exportedMessages} 条`
+                const effectiveMessageProgressLabel = (
+                  exportedMessages > 0 || estimatedTotalMessages > 0 || collectedMessages <= 0 || task.progress.phase !== 'preparing'
+                )
+                  ? messageProgressLabel
+                  : `已收集 ${collectedMessages.toLocaleString()} 条`
+                const phaseProgress = Math.max(0, Math.floor(task.progress.phaseProgress || 0))
+                const phaseTotal = Math.max(0, Math.floor(task.progress.phaseTotal || 0))
+                const mediaDoneFiles = Math.max(0, Math.floor(task.progress.mediaDoneFiles || 0))
+                const mediaCacheHitFiles = Math.max(0, Math.floor(task.progress.mediaCacheHitFiles || 0))
+                const mediaCacheMissFiles = Math.max(0, Math.floor(task.progress.mediaCacheMissFiles || 0))
+                const mediaDedupReuseFiles = Math.max(0, Math.floor(task.progress.mediaDedupReuseFiles || 0))
+                const mediaCacheTotal = mediaCacheHitFiles + mediaCacheMissFiles
+                const mediaCacheMetricLabel = mediaCacheTotal > 0
+                  ? `缓存命中 ${mediaCacheHitFiles}/${mediaCacheTotal}`
+                  : ''
+                const mediaDedupMetricLabel = mediaDedupReuseFiles > 0
+                  ? `复用 ${mediaDedupReuseFiles}`
+                  : ''
+                const phaseMetricLabel = phaseTotal > 0
+                  ? (
+                    task.progress.phase === 'exporting-media'
+                      ? `媒体 ${Math.min(phaseProgress, phaseTotal)}/${phaseTotal}`
+                      : task.progress.phase === 'exporting-voice'
+                        ? `语音 ${Math.min(phaseProgress, phaseTotal)}/${phaseTotal}`
+                        : ''
+                  )
+                  : ''
+                const mediaLiveMetricLabel = task.progress.phase === 'exporting-media'
+                  ? (mediaDoneFiles > 0 ? `已处理 ${mediaDoneFiles}` : '')
+                  : ''
+                const sessionProgressLabel = completedSessionTotal > 0
+                  ? `会话 ${completedSessionCount}/${completedSessionTotal}`
+                  : '会话处理中'
                const currentSessionRatio = task.progress.phaseTotal > 0
                  ? Math.max(0, Math.min(1, task.progress.phaseProgress / task.progress.phaseTotal))
                  : null
@@ -1300,9 +1360,11 @@ const TaskCenterModal = memo(function TaskCenterModal({
                            />
                          </div>
                          <div className="task-progress-text">
-                            {completedSessionTotal > 0
-                              ? `已完成 ${completedSessionCount} / ${completedSessionTotal}`
-                              : '处理中'}
+                            {`${sessionProgressLabel} · ${effectiveMessageProgressLabel}`}
+                            {phaseMetricLabel ? ` · ${phaseMetricLabel}` : ''}
+                            {mediaLiveMetricLabel ? ` · ${mediaLiveMetricLabel}` : ''}
+                            {mediaCacheMetricLabel ? ` · ${mediaCacheMetricLabel}` : ''}
+                            {mediaDedupMetricLabel ? ` · ${mediaDedupMetricLabel}` : ''}
                            {task.status === 'running' && currentSessionRatio !== null
                              ? `（当前会话 ${Math.round(currentSessionRatio * 100)}%）`
                              : ''}
@@ -1387,6 +1449,8 @@ const TaskCenterModal = memo(function TaskCenterModal({
 })

 function ExportPage() {
+  const navigate = useNavigate()
+  const { setCurrentSession } = useChatStore()
  const location = useLocation()
  const isExportRoute = location.pathname === '/export'

@@ -2787,6 +2851,7 @@ function ExportPage() {
  }, [])

  const enqueueSessionMutualFriendsRequests = useCallback((sessionIds: string[], options?: { front?: boolean }) => {
+    if (activeTaskCountRef.current > 0) return
    const front = options?.front === true
    const incoming: string[] = []
    for (const sessionIdRaw of sessionIds) {
@@ -2976,6 +3041,7 @@ function ExportPage() {
  }, [])

  const enqueueSessionMediaMetricRequests = useCallback((sessionIds: string[], options?: { front?: boolean }) => {
+    if (activeTaskCountRef.current > 0) return
    const front = options?.front === true
    const incoming: string[] = []
    for (const sessionIdRaw of sessionIds) {
@@ -3025,13 +3091,27 @@ function ExportPage() {
  const runSessionMediaMetricWorker = useCallback(async (runId: number) => {
    if (sessionMediaMetricWorkerRunningRef.current) return
    sessionMediaMetricWorkerRunningRef.current = true
+    const withTimeout = async <T,>(promise: Promise<T>, timeoutMs: number, stage: string): Promise<T> => {
+      let timer: number | null = null
+      try {
+        const timeoutPromise = new Promise<never>((_, reject) => {
+          timer = window.setTimeout(() => {
+            reject(new Error(`会话多媒体统计超时(${stage}, ${timeoutMs}ms)`))
+          }, timeoutMs)
+        })
+        return await Promise.race([promise, timeoutPromise])
+      } finally {
+        if (timer !== null) {
+          window.clearTimeout(timer)
+        }
+      }
+    }
    try {
      while (runId === sessionMediaMetricRunIdRef.current) {
-        if (isLoadingSessionCountsRef.current || detailStatsPriorityRef.current) {
-          await new Promise(resolve => window.setTimeout(resolve, 80))
+        if (activeTaskCountRef.current > 0) {
+          await new Promise(resolve => window.setTimeout(resolve, 150))
          continue
        }
-
        if (sessionMediaMetricQueueRef.current.length === 0) break

        const batchSessionIds: string[] = []
@@ -3050,9 +3130,13 @@ function ExportPage() {
        patchSessionLoadTraceStage(batchSessionIds, 'mediaMetrics', 'loading')

        try {
-          const cacheResult = await window.electronAPI.chat.getExportSessionStats(
-            batchSessionIds,
-            { includeRelations: false, allowStaleCache: true, cacheOnly: true }
+          const cacheResult = await withTimeout(
+            window.electronAPI.chat.getExportSessionStats(
+              batchSessionIds,
+              { includeRelations: false, allowStaleCache: true, cacheOnly: true }
+            ),
+            12000,
+            'cacheOnly'
          )
          if (runId !== sessionMediaMetricRunIdRef.current) return
          if (cacheResult.success && cacheResult.data) {
@@ -3061,15 +3145,26 @@ function ExportPage() {

          const missingSessionIds = batchSessionIds.filter(sessionId => !isSessionMediaMetricReady(sessionId))
          if (missingSessionIds.length > 0) {
-            const freshResult = await window.electronAPI.chat.getExportSessionStats(
-              missingSessionIds,
-              { includeRelations: false, allowStaleCache: true }
+            const freshResult = await withTimeout(
+              window.electronAPI.chat.getExportSessionStats(
+                missingSessionIds,
+                { includeRelations: false, allowStaleCache: true }
+              ),
+              45000,
+              'fresh'
            )
            if (runId !== sessionMediaMetricRunIdRef.current) return
            if (freshResult.success && freshResult.data) {
              applySessionMediaMetricsFromStats(freshResult.data as Record<string, SessionExportMetric>)
            }
          }
+
+          const unresolvedSessionIds = batchSessionIds.filter(sessionId => !isSessionMediaMetricReady(sessionId))
+          if (unresolvedSessionIds.length > 0) {
+            patchSessionLoadTraceStage(unresolvedSessionIds, 'mediaMetrics', 'failed', {
+              error: '统计结果缺失，已跳过当前批次'
+            })
+          }
        } catch (error) {
          console.error('导出页加载会话媒体统计失败:', error)
          patchSessionLoadTraceStage(batchSessionIds, 'mediaMetrics', 'failed', {
@@ -3100,12 +3195,11 @@ function ExportPage() {
  }, [applySessionMediaMetricsFromStats, isSessionMediaMetricReady, patchSessionLoadTraceStage])

  const scheduleSessionMediaMetricWorker = useCallback(() => {
-    if (!isSessionCountStageReady) return
-    if (isLoadingSessionCountsRef.current) return
+    if (activeTaskCountRef.current > 0) return
    if (sessionMediaMetricWorkerRunningRef.current) return
    const runId = sessionMediaMetricRunIdRef.current
    void runSessionMediaMetricWorker(runId)
-  }, [isSessionCountStageReady, runSessionMediaMetricWorker])
+  }, [runSessionMediaMetricWorker])

  const loadSessionMutualFriendsMetric = useCallback(async (sessionId: string): Promise<SessionMutualFriendsMetric> => {
    const normalizedSessionId = String(sessionId || '').trim()
@@ -3150,6 +3244,10 @@ function ExportPage() {
    sessionMutualFriendsWorkerRunningRef.current = true
    try {
      while (runId === sessionMutualFriendsRunIdRef.current) {
+        if (activeTaskCountRef.current > 0) {
+          await new Promise(resolve => window.setTimeout(resolve, 150))
+          continue
+        }
        if (hasPendingMetricLoads()) {
          await new Promise(resolve => window.setTimeout(resolve, 120))
          continue
@@ -3196,6 +3294,7 @@ function ExportPage() {
  ])

  const scheduleSessionMutualFriendsWorker = useCallback(() => {
+    if (activeTaskCountRef.current > 0) return
    if (!isSessionCountStageReady) return
    if (hasPendingMetricLoads()) return
    if (sessionMutualFriendsWorkerRunningRef.current) return
@@ -3291,9 +3390,6 @@ function ExportPage() {

    setIsLoadingSessionCounts(true)
    try {
-      if (detailStatsPriorityRef.current) {
-        return { ...accumulatedCounts }
-      }
      if (prioritizedSessionIds.length > 0) {
        patchSessionLoadTraceStage(prioritizedSessionIds, 'messageCount', 'loading')
        const priorityResult = await window.electronAPI.chat.getSessionMessageCounts(prioritizedSessionIds)
@@ -3311,9 +3407,6 @@ function ExportPage() {
        }
      }

-      if (detailStatsPriorityRef.current) {
-        return { ...accumulatedCounts }
-      }
      if (remainingSessionIds.length > 0) {
        patchSessionLoadTraceStage(remainingSessionIds, 'messageCount', 'loading')
        const remainingResult = await window.electronAPI.chat.getSessionMessageCounts(remainingSessionIds)
@@ -4135,6 +4228,168 @@ function ExportPage() {

    progressUnsubscribeRef.current?.()
    const settledSessionIdsFromProgress = new Set<string>()
+    const sessionMessageProgress = new Map<string, { exported: number; total: number; knownTotal: boolean }>()
+    let queuedProgressPayload: ExportProgress | null = null
+    let queuedProgressRaf: number | null = null
+    let queuedProgressTimer: number | null = null
+
+    const clearQueuedProgress = () => {
+      if (queuedProgressRaf !== null) {
+        window.cancelAnimationFrame(queuedProgressRaf)
+        queuedProgressRaf = null
+      }
+      if (queuedProgressTimer !== null) {
+        window.clearTimeout(queuedProgressTimer)
+        queuedProgressTimer = null
+      }
+    }
+
+    const updateSessionMessageProgress = (payload: ExportProgress) => {
+      const sessionId = String(payload.currentSessionId || '').trim()
+      if (!sessionId) return
+      const prev = sessionMessageProgress.get(sessionId) || { exported: 0, total: 0, knownTotal: false }
+      const nextExported = Number.isFinite(payload.exportedMessages)
+        ? Math.max(prev.exported, Math.max(0, Math.floor(Number(payload.exportedMessages || 0))))
+        : prev.exported
+      const hasEstimatedTotal = Number.isFinite(payload.estimatedTotalMessages)
+      const nextTotal = hasEstimatedTotal
+        ? Math.max(prev.total, Math.max(0, Math.floor(Number(payload.estimatedTotalMessages || 0))))
+        : prev.total
+      const knownTotal = prev.knownTotal || hasEstimatedTotal
+      sessionMessageProgress.set(sessionId, {
+        exported: nextExported,
+        total: nextTotal,
+        knownTotal
+      })
+    }
+
+    const resolveAggregatedMessageProgress = () => {
+      let exported = 0
+      let estimated = 0
+      let allKnown = true
+      for (const sessionId of next.payload.sessionIds) {
+        const entry = sessionMessageProgress.get(sessionId)
+        if (!entry) {
+          allKnown = false
+          continue
+        }
+        exported += entry.exported
+        estimated += entry.total
+        if (!entry.knownTotal) {
+          allKnown = false
+        }
+      }
+      return {
+        exported: Math.max(0, Math.floor(exported)),
+        estimated: allKnown ? Math.max(0, Math.floor(estimated)) : 0
+      }
+    }
+
+    const flushQueuedProgress = () => {
+      if (!queuedProgressPayload) return
+      const payload = queuedProgressPayload
+      queuedProgressPayload = null
+      const now = Date.now()
+      const currentSessionId = String(payload.currentSessionId || '').trim()
+      updateTask(next.id, task => {
+        if (task.status !== 'running') return task
+        const performance = applyProgressToTaskPerformance(task, payload, now)
+        const settledSessionIds = task.settledSessionIds || []
+        const nextSettledSessionIds = (
+          payload.phase === 'complete' &&
+          currentSessionId &&
+          !settledSessionIds.includes(currentSessionId)
+        )
+          ? [...settledSessionIds, currentSessionId]
+          : settledSessionIds
+        const aggregatedMessageProgress = resolveAggregatedMessageProgress()
+        const collectedMessages = Number.isFinite(payload.collectedMessages)
+          ? Math.max(0, Math.floor(Number(payload.collectedMessages || 0)))
+          : task.progress.collectedMessages
+        const writtenFiles = Number.isFinite(payload.writtenFiles)
+          ? Math.max(task.progress.writtenFiles, Math.max(0, Math.floor(Number(payload.writtenFiles || 0))))
+          : task.progress.writtenFiles
+        const prevMediaDoneFiles = Number.isFinite(task.progress.mediaDoneFiles)
+          ? Math.max(0, Math.floor(Number(task.progress.mediaDoneFiles || 0)))
+          : 0
+        const prevMediaCacheHitFiles = Number.isFinite(task.progress.mediaCacheHitFiles)
+          ? Math.max(0, Math.floor(Number(task.progress.mediaCacheHitFiles || 0)))
+          : 0
+        const prevMediaCacheMissFiles = Number.isFinite(task.progress.mediaCacheMissFiles)
+          ? Math.max(0, Math.floor(Number(task.progress.mediaCacheMissFiles || 0)))
+          : 0
+        const prevMediaCacheFillFiles = Number.isFinite(task.progress.mediaCacheFillFiles)
+          ? Math.max(0, Math.floor(Number(task.progress.mediaCacheFillFiles || 0)))
+          : 0
+        const prevMediaDedupReuseFiles = Number.isFinite(task.progress.mediaDedupReuseFiles)
+          ? Math.max(0, Math.floor(Number(task.progress.mediaDedupReuseFiles || 0)))
+          : 0
+        const prevMediaBytesWritten = Number.isFinite(task.progress.mediaBytesWritten)
+          ? Math.max(0, Math.floor(Number(task.progress.mediaBytesWritten || 0)))
+          : 0
+        const mediaDoneFiles = Number.isFinite(payload.mediaDoneFiles)
+          ? Math.max(prevMediaDoneFiles, Math.max(0, Math.floor(Number(payload.mediaDoneFiles || 0))))
+          : prevMediaDoneFiles
+        const mediaCacheHitFiles = Number.isFinite(payload.mediaCacheHitFiles)
+          ? Math.max(prevMediaCacheHitFiles, Math.max(0, Math.floor(Number(payload.mediaCacheHitFiles || 0))))
+          : prevMediaCacheHitFiles
+        const mediaCacheMissFiles = Number.isFinite(payload.mediaCacheMissFiles)
+          ? Math.max(prevMediaCacheMissFiles, Math.max(0, Math.floor(Number(payload.mediaCacheMissFiles || 0))))
+          : prevMediaCacheMissFiles
+        const mediaCacheFillFiles = Number.isFinite(payload.mediaCacheFillFiles)
+          ? Math.max(prevMediaCacheFillFiles, Math.max(0, Math.floor(Number(payload.mediaCacheFillFiles || 0))))
+          : prevMediaCacheFillFiles
+        const mediaDedupReuseFiles = Number.isFinite(payload.mediaDedupReuseFiles)
+          ? Math.max(prevMediaDedupReuseFiles, Math.max(0, Math.floor(Number(payload.mediaDedupReuseFiles || 0))))
+          : prevMediaDedupReuseFiles
+        const mediaBytesWritten = Number.isFinite(payload.mediaBytesWritten)
+          ? Math.max(prevMediaBytesWritten, Math.max(0, Math.floor(Number(payload.mediaBytesWritten || 0))))
+          : prevMediaBytesWritten
+        return {
+          ...task,
+          progress: {
+            current: payload.current,
+            total: payload.total,
+            currentName: payload.currentSession,
+            phase: payload.phase,
+            phaseLabel: payload.phaseLabel || '',
+            phaseProgress: payload.phaseProgress || 0,
+            phaseTotal: payload.phaseTotal || 0,
+            exportedMessages: Math.max(task.progress.exportedMessages, aggregatedMessageProgress.exported),
+            estimatedTotalMessages: aggregatedMessageProgress.estimated > 0
+              ? Math.max(task.progress.estimatedTotalMessages, aggregatedMessageProgress.estimated)
+              : (task.progress.estimatedTotalMessages > 0 ? task.progress.estimatedTotalMessages : 0),
+            collectedMessages: Math.max(task.progress.collectedMessages, collectedMessages),
+            writtenFiles,
+            mediaDoneFiles,
+            mediaCacheHitFiles,
+            mediaCacheMissFiles,
+            mediaCacheFillFiles,
+            mediaDedupReuseFiles,
+            mediaBytesWritten
+          },
+          settledSessionIds: nextSettledSessionIds,
+          performance
+        }
+      })
+    }
+
+    const queueProgressUpdate = (payload: ExportProgress) => {
+      queuedProgressPayload = payload
+      if (payload.phase === 'complete') {
+        clearQueuedProgress()
+        flushQueuedProgress()
+        return
+      }
+      if (queuedProgressRaf !== null || queuedProgressTimer !== null) return
+      queuedProgressRaf = window.requestAnimationFrame(() => {
+        queuedProgressRaf = null
+        queuedProgressTimer = window.setTimeout(() => {
+          queuedProgressTimer = null
+          flushQueuedProgress()
+        }, 100)
+      })
+    }
    if (next.payload.scope === 'sns') {
      progressUnsubscribeRef.current = window.electronAPI.sns.onExportProgress((payload) => {
        updateTask(next.id, task => {
@@ -4148,7 +4403,17 @@ function ExportPage() {
              phase: 'exporting',
              phaseLabel: payload.status || '',
              phaseProgress: payload.total > 0 ? payload.current : 0,
-              phaseTotal: payload.total || 0
+              phaseTotal: payload.total || 0,
+              exportedMessages: payload.total > 0 ? Math.max(0, Math.floor(payload.current || 0)) : task.progress.exportedMessages,
+              estimatedTotalMessages: payload.total > 0 ? Math.max(0, Math.floor(payload.total || 0)) : task.progress.estimatedTotalMessages,
+              collectedMessages: task.progress.collectedMessages,
+              writtenFiles: task.progress.writtenFiles,
+              mediaDoneFiles: task.progress.mediaDoneFiles,
+              mediaCacheHitFiles: task.progress.mediaCacheHitFiles,
+              mediaCacheMissFiles: task.progress.mediaCacheMissFiles,
+              mediaCacheFillFiles: task.progress.mediaCacheFillFiles,
+              mediaDedupReuseFiles: task.progress.mediaDedupReuseFiles,
+              mediaBytesWritten: task.progress.mediaBytesWritten
            }
          }
        })
@@ -4157,6 +4422,7 @@ function ExportPage() {
      progressUnsubscribeRef.current = window.electronAPI.export.onProgress((payload: ExportProgress) => {
        const now = Date.now()
        const currentSessionId = String(payload.currentSessionId || '').trim()
+        updateSessionMessageProgress(payload)
        if (payload.phase === 'complete' && currentSessionId && !settledSessionIdsFromProgress.has(currentSessionId)) {
          settledSessionIdsFromProgress.add(currentSessionId)
          const phaseLabel = String(payload.phaseLabel || '')
@@ -4172,33 +4438,7 @@ function ExportPage() {
            markSessionExportRecords([currentSessionId], taskExportContentLabel, next.payload.outputDir, now)
          }
        }
-
-        updateTask(next.id, task => {
-          if (task.status !== 'running') return task
-          const performance = applyProgressToTaskPerformance(task, payload, now)
-          const settledSessionIds = task.settledSessionIds || []
-          const nextSettledSessionIds = (
-            payload.phase === 'complete' &&
-            currentSessionId &&
-            !settledSessionIds.includes(currentSessionId)
-          )
-            ? [...settledSessionIds, currentSessionId]
-            : settledSessionIds
-          return {
-            ...task,
-            progress: {
-              current: payload.current,
-              total: payload.total,
-              currentName: payload.currentSession,
-              phase: payload.phase,
-              phaseLabel: payload.phaseLabel || '',
-              phaseProgress: payload.phaseProgress || 0,
-              phaseTotal: payload.phaseTotal || 0
-            },
-            settledSessionIds: nextSettledSessionIds,
-            performance
-          }
-        })
+        queueProgressUpdate(payload)
      })
    }

@@ -4310,6 +4550,8 @@ function ExportPage() {
        performance: finalizeTaskPerformance(task, doneAt)
      }))
    } finally {
+      clearQueuedProgress()
+      flushQueuedProgress()
      progressUnsubscribeRef.current?.()
      progressUnsubscribeRef.current = null
      runningTaskIdRef.current = null
@@ -4715,10 +4957,22 @@ function ExportPage() {
    return new Date(value).toLocaleTimeString('zh-CN', { hour12: false })
  }, [])

-  const getLoadDetailStatusLabel = useCallback((loaded: number, total: number, hasStarted: boolean): string => {
+  const getLoadDetailStatusLabel = useCallback((
+    loaded: number,
+    total: number,
+    hasStarted: boolean,
+    hasLoading: boolean,
+    failedCount: number
+  ): string => {
    if (total <= 0) return '待加载'
-    if (loaded >= total) return `已完成 ${total}`
-    if (hasStarted) return `加载中 ${loaded}/${total}`
+    const terminalCount = loaded + failedCount
+    if (terminalCount >= total) {
+      if (failedCount > 0) return `已完成 ${loaded}/${total}（失败 ${failedCount}）`
+      return `已完成 ${total}`
+    }
+    if (hasLoading) return `加载中 ${loaded}/${total}`
+    if (hasStarted && failedCount > 0) return `已完成 ${loaded}/${total}（失败 ${failedCount}）`
+    if (hasStarted) return `已完成 ${loaded}/${total}`
    return '待加载'
  }, [])

@@ -4728,7 +4982,9 @@ function ExportPage() {
  ): SessionLoadStageSummary => {
    const total = sessionIds.length
    let loaded = 0
+    let failedCount = 0
    let hasStarted = false
+    let hasLoading = false
    let earliestStart: number | undefined
    let latestFinish: number | undefined
    let latestProgressAt: number | undefined
@@ -4742,6 +4998,12 @@ function ExportPage() {
            : Math.max(latestProgressAt, stage.finishedAt)
        }
      }
+      if (stage?.status === 'failed') {
+        failedCount += 1
+      }
+      if (stage?.status === 'loading') {
+        hasLoading = true
+      }
      if (stage?.status === 'loading' || stage?.status === 'failed' || typeof stage?.startedAt === 'number') {
        hasStarted = true
      }
@@ -4759,9 +5021,9 @@ function ExportPage() {
    return {
      total,
      loaded,
-      statusLabel: getLoadDetailStatusLabel(loaded, total, hasStarted),
+      statusLabel: getLoadDetailStatusLabel(loaded, total, hasStarted, hasLoading, failedCount),
      startedAt: earliestStart,
-      finishedAt: loaded >= total ? latestFinish : undefined,
+      finishedAt: (loaded + failedCount) >= total ? latestFinish : undefined,
      latestProgressAt
    }
  }, [getLoadDetailStatusLabel, sessionLoadTraceMap])
@@ -4907,7 +5169,6 @@ function ExportPage() {
    const endIndex = Number.isFinite(range?.endIndex) ? Math.max(startIndex, Math.floor(range.endIndex)) : startIndex
    sessionMediaMetricVisibleRangeRef.current = { startIndex, endIndex }
    sessionMutualFriendsVisibleRangeRef.current = { startIndex, endIndex }
-    if (isLoadingSessionCountsRef.current || !isSessionCountStageReady) return
    const visibleTargets = collectVisibleSessionMetricTargets(filteredContacts)
    if (visibleTargets.length === 0) return
    enqueueSessionMediaMetricRequests(visibleTargets, { front: true })
@@ -4923,13 +5184,13 @@ function ExportPage() {
    enqueueSessionMediaMetricRequests,
    enqueueSessionMutualFriendsRequests,
    filteredContacts,
-    isSessionCountStageReady,
    scheduleSessionMediaMetricWorker,
    scheduleSessionMutualFriendsWorker
  ])

  useEffect(() => {
-    if (!isSessionCountStageReady || filteredContacts.length === 0) return
+    if (activeTaskCount > 0) return
+    if (filteredContacts.length === 0) return
    const runId = sessionMediaMetricRunIdRef.current
    const visibleTargets = collectVisibleSessionMetricTargets(filteredContacts)
    if (visibleTargets.length > 0) {
@@ -4946,7 +5207,6 @@ function ExportPage() {
    let cursor = 0
    const feedNext = () => {
      if (runId !== sessionMediaMetricRunIdRef.current) return
-      if (isLoadingSessionCountsRef.current) return
      const batchIds: string[] = []
      while (cursor < filteredContacts.length && batchIds.length < SESSION_MEDIA_METRIC_BACKGROUND_FEED_SIZE) {
        const contact = filteredContacts[cursor]
@@ -4976,15 +5236,61 @@ function ExportPage() {
      }
    }
  }, [
+    activeTaskCount,
    collectVisibleSessionMetricTargets,
    enqueueSessionMediaMetricRequests,
    filteredContacts,
-    isSessionCountStageReady,
    scheduleSessionMediaMetricWorker,
    sessionRowByUsername
  ])

  useEffect(() => {
+    if (activeTaskCount > 0) return
+    const runId = sessionMediaMetricRunIdRef.current
+    const allTargets = [
+      ...(loadDetailTargetsByTab.private || []),
+      ...(loadDetailTargetsByTab.group || []),
+      ...(loadDetailTargetsByTab.former_friend || [])
+    ]
+    if (allTargets.length === 0) return
+
+    let timer: number | null = null
+    let cursor = 0
+    const feedNext = () => {
+      if (runId !== sessionMediaMetricRunIdRef.current) return
+      const batchIds: string[] = []
+      while (cursor < allTargets.length && batchIds.length < SESSION_MEDIA_METRIC_BACKGROUND_FEED_SIZE) {
+        const sessionId = allTargets[cursor]
+        cursor += 1
+        if (!sessionId) continue
+        batchIds.push(sessionId)
+      }
+      if (batchIds.length > 0) {
+        enqueueSessionMediaMetricRequests(batchIds)
+        scheduleSessionMediaMetricWorker()
+      }
+      if (cursor < allTargets.length) {
+        timer = window.setTimeout(feedNext, SESSION_MEDIA_METRIC_BACKGROUND_FEED_INTERVAL_MS)
+      }
+    }
+
+    feedNext()
+    return () => {
+      if (timer !== null) {
+        window.clearTimeout(timer)
+      }
+    }
+  }, [
+    activeTaskCount,
+    enqueueSessionMediaMetricRequests,
+    loadDetailTargetsByTab.former_friend,
+    loadDetailTargetsByTab.group,
+    loadDetailTargetsByTab.private,
+    scheduleSessionMediaMetricWorker
+  ])
+
+  useEffect(() => {
+    if (activeTaskCount > 0) return
    if (!isSessionCountStageReady || filteredContacts.length === 0) return
    const runId = sessionMutualFriendsRunIdRef.current
    const visibleTargets = collectVisibleSessionMutualFriendsTargets(filteredContacts)
@@ -5031,6 +5337,7 @@ function ExportPage() {
      }
    }
  }, [
+    activeTaskCount,
    collectVisibleSessionMutualFriendsTargets,
    enqueueSessionMutualFriendsRequests,
    filteredContacts,
@@ -5348,16 +5655,16 @@ function ExportPage() {

      const lastPreciseAt = sessionPreciseRefreshAtRef.current[preciseCacheKey] || 0
      const hasRecentPrecise = Date.now() - lastPreciseAt <= DETAIL_PRECISE_REFRESH_COOLDOWN_MS
-      const shouldRunPreciseRefresh = !hasRecentPrecise && (!quickMetric || Boolean(quickCacheMeta?.stale))
+      const shouldRunBackgroundRefresh = !hasRecentPrecise && (!quickMetric || Boolean(quickCacheMeta?.stale))

-      if (shouldRunPreciseRefresh) {
+      if (shouldRunBackgroundRefresh) {
        setIsRefreshingSessionDetailStats(true)
        void (async () => {
          try {
-            // 后台精确补算三类重字段（转账/红包/通话），不阻塞首屏基础统计显示。
+            // 后台补齐非关系统计，不走精确特型扫描，避免阻塞列表统计队列。
            const freshResult = await window.electronAPI.chat.getExportSessionStats(
              [normalizedSessionId],
-              { includeRelations: false, forceRefresh: true, preferAccurateSpecialTypes: true }
+              { includeRelations: false, forceRefresh: true }
            )
            if (requestSeq !== detailRequestSeqRef.current) return
            if (freshResult.success && freshResult.data) {
@@ -6083,14 +6390,10 @@ function ExportPage() {
              <button
                type="button"
                className="row-open-chat-link"
-                title="在新窗口打开该会话"
+                title="切换到聊天页查看该会话"
                onClick={() => {
-                  void window.electronAPI.window.openSessionChatWindow(contact.username, {
-                    source: 'export',
-                    initialDisplayName: contact.displayName || contact.username,
-                    initialAvatarUrl: contact.avatarUrl,
-                    initialContactType: contact.type
-                  })
+                  setCurrentSession(contact.username)
+                  navigate('/chat')
                }}
              >
                {openChatLabel}
@@ -6198,6 +6501,7 @@ function ExportPage() {
    )
  }, [
    lastExportBySession,
+    navigate,
    nowTick,
    openContactSnsTimeline,
    openSessionDetail,
@@ -6219,6 +6523,7 @@ function ExportPage() {
    shouldShowSnsColumn,
    snsUserPostCounts,
    snsUserPostCountsStatus,
+    setCurrentSession,
    toggleSelectSession
  ])
  const handleContactsListWheelCapture = useCallback((event: WheelEvent<HTMLDivElement>) => {
--- a/src/pages/SettingsPage.tsx
+++ b/src/pages/SettingsPage.tsx
@@ -30,6 +30,16 @@ const tabs: { id: SettingsTab; label: string; icon: React.ElementType }[] = [
  { id: 'about', label: '关于', icon: Info }
 ]

+const isMac = navigator.userAgent.toLowerCase().includes('mac')
+const isLinux = navigator.userAgent.toLowerCase().includes('linux')
+
+const dbDirName = isMac ? '2.0b4.0.9 目录' : 'xwechat_files 目录'
+const dbPathPlaceholder = isMac
+    ? '例如: ~/Library/Containers/com.tencent.xinWeChat/Data/Library/Application Support/com.tencent.xinWeChat/2.0b4.0.9'
+    : isLinux
+        ? '例如: ~/.local/share/WeChat/xwechat_files 或者 ~/Documents/xwechat_files'
+        : '例如: C:\\Users\\xxx\\Documents\\xwechat_files'
+

 interface WxidOption {
  wxid: string
@@ -161,6 +171,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
  const [httpApiMediaExportPath, setHttpApiMediaExportPath] = useState('')
  const [isTogglingApi, setIsTogglingApi] = useState(false)
  const [showApiWarning, setShowApiWarning] = useState(false)
+  const [messagePushEnabled, setMessagePushEnabled] = useState(false)

  const isClearingCache = isClearingAnalyticsCache || isClearingImageCache || isClearingAllCache

@@ -286,6 +297,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
      const savedNotificationPosition = await configService.getNotificationPosition()
      const savedNotificationFilterMode = await configService.getNotificationFilterMode()
      const savedNotificationFilterList = await configService.getNotificationFilterList()
+      const savedMessagePushEnabled = await configService.getMessagePushEnabled()
      const savedWindowCloseBehavior = await configService.getWindowCloseBehavior()

      const savedAuthEnabled = await window.electronAPI.auth.verifyEnabled()
@@ -322,6 +334,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
      setNotificationPosition(savedNotificationPosition)
      setNotificationFilterMode(savedNotificationFilterMode)
      setNotificationFilterList(savedNotificationFilterList)
+      setMessagePushEnabled(savedMessagePushEnabled)
      setWindowCloseBehavior(savedWindowCloseBehavior)

      const savedExcludeWords = await configService.getWordCloudExcludeWords()
@@ -1371,7 +1384,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
        <span className="form-hint">xwechat_files 目录</span>
        <input
          type="text"
-          placeholder="例如: C:\Users\xxx\Documents\xwechat_files"
+          placeholder={dbPathPlaceholder}
          value={dbPath}
          onChange={(e) => {
            const value = e.target.value
@@ -1736,6 +1749,12 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
    showMessage('已复制 API 地址', true)
  }

+  const handleToggleMessagePush = async (enabled: boolean) => {
+    setMessagePushEnabled(enabled)
+    await configService.setMessagePushEnabled(enabled)
+    showMessage(enabled ? '已开启主动推送' : '已关闭主动推送', true)
+  }
+
  const renderApiTab = () => (
    <div className="tab-content">
      <div className="form-group">
@@ -1802,6 +1821,70 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
        />
      </div>

+      <div className="divider" />
+
+      <div className="form-group">
+        <label>主动推送</label>
+        <span className="form-hint">检测到新收到的消息后，会通过当前 API 端口下的固定 SSE 地址主动推送给外部订阅端</span>
+        <div className="log-toggle-line">
+          <span className="log-status">
+            {messagePushEnabled ? '已开启' : '已关闭'}
+          </span>
+          <label className="switch">
+            <input
+              type="checkbox"
+              checked={messagePushEnabled}
+              onChange={(e) => { void handleToggleMessagePush(e.target.checked) }}
+            />
+            <span className="switch-slider" />
+          </label>
+        </div>
+      </div>
+
+      <div className="form-group">
+        <label>推送地址</label>
+        <span className="form-hint">外部软件连接这个 SSE 地址即可接收新消息推送；需要先开启上方 `HTTP API 服务`</span>
+        <div className="api-url-display">
+          <input
+            type="text"
+            className="field-input"
+            value={`http://127.0.0.1:${httpApiPort}/api/v1/push/messages`}
+            readOnly
+          />
+          <button
+            className="btn btn-secondary"
+            onClick={() => {
+              navigator.clipboard.writeText(`http://127.0.0.1:${httpApiPort}/api/v1/push/messages`)
+              showMessage('已复制推送地址', true)
+            }}
+            title="复制"
+          >
+            <Copy size={16} />
+          </button>
+        </div>
+      </div>
+
+      <div className="form-group">
+        <label>推送内容</label>
+        <span className="form-hint">SSE 事件名为 `message.new`；私聊推送 `avatarUrl/sourceName/content`，群聊额外附带 `groupName`</span>
+        <div className="api-docs">
+          <div className="api-item">
+            <div className="api-endpoint">
+              <span className="method get">GET</span>
+              <code>{`http://127.0.0.1:${httpApiPort}/api/v1/push/messages`}</code>
+            </div>
+            <p className="api-desc">通过 SSE 长连接接收消息事件，建议接收端按 `messageKey` 去重。</p>
+            <div className="api-params">
+              {['event', 'sessionId', 'messageKey', 'avatarUrl', 'sourceName', 'groupName?', 'content'].map((param) => (
+                <span key={param} className="param">
+                  <code>{param}</code>
+                </span>
+              ))}
+            </div>
+          </div>
+        </div>
+      </div>
+
      {showApiWarning && (
        <div className="modal-overlay" onClick={() => setShowApiWarning(false)}>
          <div className="api-warning-modal" onClick={(e) => e.stopPropagation()}>
--- a/src/pages/WelcomePage.tsx
+++ b/src/pages/WelcomePage.tsx
@@ -11,9 +11,19 @@ import {
 import ConfirmDialog from '../components/ConfirmDialog'
 import './WelcomePage.scss'

+const isMac = navigator.userAgent.toLowerCase().includes('mac')
+const isLinux = navigator.userAgent.toLowerCase().includes('linux')
+
+const dbDirName = isMac ? '2.0b4.0.9 目录' : 'xwechat_files 目录'
+const dbPathPlaceholder = isMac
+    ? '例如: ~/Library/Containers/com.tencent.xinWeChat/Data/Library/Application Support/com.tencent.xinWeChat/2.0b4.0.9'
+    : isLinux
+        ? '例如: ~/.local/share/WeChat/xwechat_files 或者 ~/Documents/xwechat_files'
+        : '例如: C:\\Users\\xxx\\Documents\\xwechat_files'
+
 const steps = [
  { id: 'intro', title: '欢迎', desc: '准备开始你的本地数据探索' },
-  { id: 'db', title: '数据库目录', desc: '定位 xwechat_files 目录' },
+  { id: 'db', title: '数据库目录', desc: `定位 ${dbDirName}` },
  { id: 'cache', title: '缓存目录', desc: '设置本地缓存存储位置（可选）' },
  { id: 'key', title: '解密密钥', desc: '获取密钥与自动识别账号' },
  { id: 'image', title: '图片密钥', desc: '获取 XOR 与 AES 密钥' },
@@ -637,7 +647,7 @@ function WelcomePage({ standalone = false }: WelcomePageProps) {
                  <input
                    type="text"
                    className="field-input"
-                    placeholder="例如：C:\\Users\\xxx\\Documents\\xwechat_files"
+                    placeholder={dbPathPlaceholder}
                    value={dbPath}
                    onChange={(e) => setDbPath(e.target.value)}
                  />
@@ -888,13 +898,17 @@ function WelcomePage({ standalone = false }: WelcomePageProps) {
        </div>

        <ConfirmDialog
-          open={showDbKeyConfirm}
-          title="开始获取数据库密钥"
-          message={`当开始获取后 WeFlow 将会执行准备操作
-
-当 WeFlow 内的提示条变为绿色显示允许登录或看到来自WeFlow的登录通知时，登录你的微信或退出当前登录并重新登录。`}
-          onConfirm={handleDbKeyConfirm}
-          onCancel={() => setShowDbKeyConfirm(false)}
+            open={showDbKeyConfirm}
+            title="开始获取数据库密钥"
+            message={`当开始获取后 WeFlow 将会执行准备操作。
+${isLinux ? `
+【⚠️ Linux 用户特别注意】
+如果您在微信里勾选了“自动登录”，请务必先关闭自动登录，然后再点击下方确认！
+（因为授权弹窗输入密码需要时间，若自动登录太快会导致获取失败）
+` : ''}
+当 WeFlow 内的提示条变为绿色显示允许登录或看到来自 WeFlow 的登录通知时，请在手机上确认登录微信。`}
+            onConfirm={handleDbKeyConfirm}
+            onCancel={() => setShowDbKeyConfirm(false)}
        />
      </div>
    </div>
--- a/src/services/config.ts
+++ b/src/services/config.ts
@@ -63,6 +63,7 @@ export const CONFIG_KEYS = {
  NOTIFICATION_POSITION: 'notificationPosition',
  NOTIFICATION_FILTER_MODE: 'notificationFilterMode',
  NOTIFICATION_FILTER_LIST: 'notificationFilterList',
+  MESSAGE_PUSH_ENABLED: 'messagePushEnabled',
  WINDOW_CLOSE_BEHAVIOR: 'windowCloseBehavior',

  // 词云
@@ -1362,6 +1363,15 @@ export async function setNotificationFilterList(list: string[]): Promise<void> {
  await config.set(CONFIG_KEYS.NOTIFICATION_FILTER_LIST, list)
 }

+export async function getMessagePushEnabled(): Promise<boolean> {
+  const value = await config.get(CONFIG_KEYS.MESSAGE_PUSH_ENABLED)
+  return value === true
+}
+
+export async function setMessagePushEnabled(enabled: boolean): Promise<void> {
+  await config.set(CONFIG_KEYS.MESSAGE_PUSH_ENABLED, enabled)
+}
+
 export async function getWindowCloseBehavior(): Promise<WindowCloseBehavior> {
  const value = await config.get(CONFIG_KEYS.WINDOW_CLOSE_BEHAVIOR)
  if (value === 'tray' || value === 'quit') return value
--- a/src/stores/batchTranscribeStore.ts
+++ b/src/stores/batchTranscribeStore.ts
@@ -1,8 +1,12 @@
 import { create } from 'zustand'

+export type BatchVoiceTaskType = 'transcribe' | 'decrypt'
+
 export interface BatchTranscribeState {
  /** 是否正在批量转写 */
  isBatchTranscribing: boolean
+  /** 当前批量任务类型 */
+  taskType: BatchVoiceTaskType
  /** 转写进度 */
  progress: { current: number; total: number }
  /** 是否显示进度浮窗 */
@@ -16,7 +20,7 @@ export interface BatchTranscribeState {
  sessionName: string

  // Actions
-  startTranscribe: (total: number, sessionName: string) => void
+  startTranscribe: (total: number, sessionName: string, taskType?: BatchVoiceTaskType) => void
  updateProgress: (current: number, total: number) => void
  finishTranscribe: (success: number, fail: number) => void
  setShowToast: (show: boolean) => void
@@ -26,6 +30,7 @@ export interface BatchTranscribeState {

 export const useBatchTranscribeStore = create<BatchTranscribeState>((set) => ({
  isBatchTranscribing: false,
+  taskType: 'transcribe',
  progress: { current: 0, total: 0 },
  showToast: false,
  showResult: false,
@@ -33,8 +38,9 @@ export const useBatchTranscribeStore = create<BatchTranscribeState>((set) => ({
  sessionName: '',
  startTime: 0,

-  startTranscribe: (total, sessionName) => set({
+  startTranscribe: (total, sessionName, taskType = 'transcribe') => set({
    isBatchTranscribing: true,
+    taskType,
    showToast: true,
    progress: { current: 0, total },
    showResult: false,
@@ -60,6 +66,7 @@ export const useBatchTranscribeStore = create<BatchTranscribeState>((set) => ({

  reset: () => set({
    isBatchTranscribing: false,
+    taskType: 'transcribe',
    progress: { current: 0, total: 0 },
    showToast: false,
    showResult: false,
--- a/src/stores/chatStore.ts
+++ b/src/stores/chatStore.ts
@@ -81,13 +81,48 @@ export const useChatStore = create<ChatState>((set, get) => ({
  setMessages: (messages) => set({ messages }),

  appendMessages: (newMessages, prepend = false) => set((state) => {
-    const getMsgKey = (m: Message) => {
-      if (m.messageKey) return m.messageKey
+    const buildPrimaryKey = (m: Message): string => {
+      if (m.messageKey) return String(m.messageKey)
      return `fallback:${m.serverId || 0}:${m.createTime}:${m.sortSeq || 0}:${m.localId || 0}:${m.senderUsername || ''}:${m.localType || 0}`
    }
+    const buildAliasKeys = (m: Message): string[] => {
+      const keys = [buildPrimaryKey(m)]
+      const localId = Math.max(0, Number(m.localId || 0))
+      const serverId = Math.max(0, Number(m.serverId || 0))
+      const createTime = Math.max(0, Number(m.createTime || 0))
+      const localType = Math.floor(Number(m.localType || 0))
+      const sender = String(m.senderUsername || '')
+      const isSend = Number(m.isSend ?? -1)
+
+      if (localId > 0) {
+        keys.push(`lid:${localId}`)
+      }
+      if (serverId > 0) {
+        keys.push(`sid:${serverId}`)
+      }
+      if (localType === 3) {
+        const imageIdentity = String(m.imageMd5 || m.imageDatName || '').trim()
+        if (imageIdentity) {
+          keys.push(`img:${createTime}:${sender}:${isSend}:${imageIdentity}`)
+        }
+      }
+      return keys
+    }
+
    const currentMessages = state.messages || []
-    const existingKeys = new Set(currentMessages.map(getMsgKey))
-    const filtered = newMessages.filter(m => !existingKeys.has(getMsgKey(m)))
+    const existingAliases = new Set<string>()
+    currentMessages.forEach((msg) => {
+      buildAliasKeys(msg).forEach((key) => existingAliases.add(key))
+    })
+
+    const filtered: Message[] = []
+    newMessages.forEach((msg) => {
+      const aliasKeys = buildAliasKeys(msg)
+      const exists = aliasKeys.some((key) => existingAliases.has(key))
+      if (exists) return
+      filtered.push(msg)
+      aliasKeys.forEach((key) => existingAliases.add(key))
+    })

    if (filtered.length === 0) return state

--- a/src/styles/main.scss
+++ b/src/styles/main.scss
@@ -530,4 +530,4 @@ body {
    opacity: 0.5;
    cursor: not-allowed;
  }
-}
+}
--- a/src/types/electron.d.ts
+++ b/src/types/electron.d.ts
@@ -1,4 +1,4 @@
-import type { ChatSession, Message, Contact, ContactInfo } from './models'
+import type { ChatSession, Message, Contact, ContactInfo, ChatRecordItem } from './models'

 export interface SessionChatWindowOpenOptions {
  source?: 'chat' | 'export'
@@ -24,6 +24,8 @@ export interface ElectronAPI {
    resizeToFitVideo: (videoWidth: number, videoHeight: number) => Promise<void>
    openImageViewerWindow: (imagePath: string, liveVideoPath?: string) => Promise<void>
    openChatHistoryWindow: (sessionId: string, messageId: number) => Promise<boolean>
+    openChatHistoryPayloadWindow: (payload: { sessionId: string; title?: string; recordList: ChatRecordItem[] }) => Promise<boolean>
+    getChatHistoryPayload: (payloadId: string) => Promise<{ success: boolean; payload?: { sessionId: string; title?: string; recordList: ChatRecordItem[] }; error?: string }>
    openSessionChatWindow: (sessionId: string, options?: SessionChatWindowOpenOptions) => Promise<boolean>
  }
  config: {
@@ -319,8 +321,7 @@ export interface ElectronAPI {
    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
-    execQuery: (kind: string, path: string | null, sql: string) => Promise<{ success: boolean; rows?: any[]; error?: string }>
+    onVoiceTranscriptPartial: (callback: (payload: { sessionId?: string; msgId: string; createTime?: number; text: string }) => void) => () => void
    getMessage: (sessionId: string, localId: number) => Promise<{ success: boolean; message?: Message; error?: string }>
    onWcdbChange: (callback: (event: any, data: { type: string; json: string }) => void) => () => void
  }
@@ -862,6 +863,16 @@ export interface ExportProgress {
  phaseProgress?: number
  phaseTotal?: number
  phaseLabel?: string
+  collectedMessages?: number
+  exportedMessages?: number
+  estimatedTotalMessages?: number
+  writtenFiles?: number
+  mediaDoneFiles?: number
+  mediaCacheHitFiles?: number
+  mediaCacheMissFiles?: number
+  mediaCacheFillFiles?: number
+  mediaDedupReuseFiles?: number
+  mediaBytesWritten?: number
 }

 export interface WxidInfo {
--- a/src/types/models.ts
+++ b/src/types/models.ts
@@ -46,6 +46,7 @@ export interface Message {
  messageKey: string
  localId: number
  serverId: number
+  serverIdRaw?: string
  localType: number
  createTime: number
  sortSeq: number
@@ -128,11 +129,19 @@ export interface ChatRecordItem {
  dataurl?: string          // 数据URL
  datathumburl?: string     // 缩略图URL
  datacdnurl?: string       // CDN URL
+  cdndatakey?: string       // CDN 数据 key
+  cdnthumbkey?: string      // CDN 缩略图 key
  aeskey?: string           // AES密钥
  md5?: string              // MD5
+  fullmd5?: string          // 原图 MD5
+  thumbfullmd5?: string     // 缩略图 MD5
+  srcMsgLocalid?: number    // 源消息 LocalId
  imgheight?: number        // 图片高度
  imgwidth?: number         // 图片宽度
  duration?: number         // 时长（毫秒）
+  chatRecordTitle?: string  // 嵌套聊天记录标题
+  chatRecordDesc?: string   // 嵌套聊天记录描述
+  chatRecordList?: ChatRecordItem[] // 嵌套聊天记录列表
 }


--- a/vite.config.ts
+++ b/vite.config.ts
@@ -34,7 +34,8 @@ export default defineConfig({
                'whisper-node',
                'shelljs',
                'exceljs',
-                'node-llama-cpp'
+                'node-llama-cpp',
+                'sudo-prompt'
              ]
            }
          }
@@ -126,6 +127,26 @@ export default defineConfig({
          }
        }
      },
+      {
+        entry: 'electron/exportWorker.ts',
+        vite: {
+          build: {
+            outDir: 'dist-electron',
+            rollupOptions: {
+              external: [
+                'better-sqlite3',
+                'koffi',
+                'fsevents',
+                'exceljs'
+              ],
+              output: {
+                entryFileNames: 'exportWorker.js',
+                inlineDynamicImports: true
+              }
+            }
+          }
+        }
+      },
      {
        entry: 'electron/preload.ts',
        onstart(options) {