修复 #597；实现 #556；修复 #623与 #543；修复卡片图片问题

README.md

@@ -68,6 +68,7 @@ WeFlow 是一个**完全本地**的微信**实时**聊天记录查看、分析
 | 功能模块 | 说明 |
 |---------|------|
 | **聊天** | 解密聊天中的图片、视频、实况（仅支持谷歌协议拍摄的实况）；支持**修改**、删除**本地**消息；实时刷新最新消息，无需生成解密中间数据库 |
+| **消息防撤回** | 防止其他人发送的消息被撤回 |
 | **实时弹窗通知** | 新消息到达时提供桌面弹窗提醒，便于及时查看重要会话，提供黑白名单功能 |
 | **私聊分析** | 统计好友间消息数量；分析消息类型与发送比例；查看消息时段分布等 |
 | **群聊分析** | 查看群成员详细信息；分析群内发言排行、活跃时段和媒体内容 |

electron/main.ts

@@ -1867,6 +1867,18 @@ function registerIpcHandlers() {
     return chatService.deleteMessage(sessionId, localId, createTime, dbPathHint)
   })
 
+  ipcMain.handle('chat:checkAntiRevokeTriggers', async (_, sessionIds: string[]) => {
+    return chatService.checkAntiRevokeTriggers(sessionIds)
+  })
+
+  ipcMain.handle('chat:installAntiRevokeTriggers', async (_, sessionIds: string[]) => {
+    return chatService.installAntiRevokeTriggers(sessionIds)
+  })
+
+  ipcMain.handle('chat:uninstallAntiRevokeTriggers', async (_, sessionIds: string[]) => {
+    return chatService.uninstallAntiRevokeTriggers(sessionIds)
+  })
+
   ipcMain.handle('chat:getContact', async (_, username: string) => {
     return await chatService.getContact(username)
   })
@@ -2299,10 +2311,47 @@ function registerIpcHandlers() {
   })
 
   ipcMain.handle('export:exportSessions', async (event, sessionIds: string[], outputDir: string, options: ExportOptions) => {
-    const onProgress = (progress: ExportProgress) => {
+    const PROGRESS_FORWARD_INTERVAL_MS = 180
-      if (!event.sender.isDestroyed()) {
+    let pendingProgress: ExportProgress | null = null
-        event.sender.send('export:progress', progress)
+    let progressTimer: NodeJS.Timeout | null = null
+    let lastProgressSentAt = 0
+
+    const flushProgress = () => {
+      if (!pendingProgress) return
+      if (progressTimer) {
+        clearTimeout(progressTimer)
+        progressTimer = null
       }
+      if (!event.sender.isDestroyed()) {
+        event.sender.send('export:progress', pendingProgress)
+      }
+      pendingProgress = null
+      lastProgressSentAt = Date.now()
+    }
+
+    const queueProgress = (progress: ExportProgress) => {
+      pendingProgress = progress
+      const force = progress.phase === 'complete'
+      if (force) {
+        flushProgress()
+        return
+      }
+
+      const now = Date.now()
+      const elapsed = now - lastProgressSentAt
+      if (elapsed >= PROGRESS_FORWARD_INTERVAL_MS) {
+        flushProgress()
+        return
+      }
+
+      if (progressTimer) return
+      progressTimer = setTimeout(() => {
+        flushProgress()
+      }, PROGRESS_FORWARD_INTERVAL_MS - elapsed)
+    }
+
+    const onProgress = (progress: ExportProgress) => {
+      queueProgress(progress)
     }
 
     const runMainFallback = async (reason: string) => {
@@ -2381,6 +2430,12 @@ function registerIpcHandlers() {
       return await runWorker()
     } catch (error) {
       return runMainFallback(error instanceof Error ? error.message : String(error))
+    } finally {
+      flushProgress()
+      if (progressTimer) {
+        clearTimeout(progressTimer)
+        progressTimer = null
+      }
     }
   })
 

electron/preload.ts

@@ -190,6 +190,12 @@ contextBridge.exposeInMainWorld('electronAPI', {
       ipcRenderer.invoke('chat:updateMessage', sessionId, localId, createTime, newContent),
     deleteMessage: (sessionId: string, localId: number, createTime: number, dbPathHint?: string) =>
       ipcRenderer.invoke('chat:deleteMessage', sessionId, localId, createTime, dbPathHint),
+    checkAntiRevokeTriggers: (sessionIds: string[]) =>
+      ipcRenderer.invoke('chat:checkAntiRevokeTriggers', sessionIds),
+    installAntiRevokeTriggers: (sessionIds: string[]) =>
+      ipcRenderer.invoke('chat:installAntiRevokeTriggers', sessionIds),
+    uninstallAntiRevokeTriggers: (sessionIds: string[]) =>
+      ipcRenderer.invoke('chat:uninstallAntiRevokeTriggers', sessionIds),
     resolveTransferDisplayNames: (chatroomId: string, payerUsername: string, receiverUsername: string) =>
       ipcRenderer.invoke('chat:resolveTransferDisplayNames', chatroomId, payerUsername, receiverUsername),
     getMyAvatarUrl: () => ipcRenderer.invoke('chat:getMyAvatarUrl'),

electron/services/chatService.ts

@@ -1,4 +1,4 @@
-import { join, dirname, basename, extname } from 'path'
+import { join, dirname, basename, extname } from 'path'
 import { existsSync, mkdirSync, readdirSync, statSync, readFileSync, writeFileSync, copyFileSync, unlinkSync, watch, promises as fsPromises } from 'fs'
 import * as path from 'path'
 import * as fs from 'fs'
@@ -558,6 +558,51 @@ class ChatService {
     }
   }
 
+  async checkAntiRevokeTriggers(sessionIds: string[]): Promise<{
+    success: boolean
+    rows?: Array<{ sessionId: string; success: boolean; installed?: boolean; error?: string }>
+    error?: string
+  }> {
+    try {
+      const connectResult = await this.ensureConnected()
+      if (!connectResult.success) return { success: false, error: connectResult.error }
+      const normalizedIds = Array.from(new Set((sessionIds || []).map((id) => String(id || '').trim()).filter(Boolean)))
+      return await wcdbService.checkMessageAntiRevokeTriggers(normalizedIds)
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
+  async installAntiRevokeTriggers(sessionIds: string[]): Promise<{
+    success: boolean
+    rows?: Array<{ sessionId: string; success: boolean; alreadyInstalled?: boolean; error?: string }>
+    error?: string
+  }> {
+    try {
+      const connectResult = await this.ensureConnected()
+      if (!connectResult.success) return { success: false, error: connectResult.error }
+      const normalizedIds = Array.from(new Set((sessionIds || []).map((id) => String(id || '').trim()).filter(Boolean)))
+      return await wcdbService.installMessageAntiRevokeTriggers(normalizedIds)
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
+  async uninstallAntiRevokeTriggers(sessionIds: string[]): Promise<{
+    success: boolean
+    rows?: Array<{ sessionId: string; success: boolean; error?: string }>
+    error?: string
+  }> {
+    try {
+      const connectResult = await this.ensureConnected()
+      if (!connectResult.success) return { success: false, error: connectResult.error }
+      const normalizedIds = Array.from(new Set((sessionIds || []).map((id) => String(id || '').trim()).filter(Boolean)))
+      return await wcdbService.uninstallMessageAntiRevokeTriggers(normalizedIds)
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
   /**
    * 获取会话列表（优化：先返回基础数据，不等待联系人信息加载）
    */
@@ -1773,18 +1818,9 @@ class ChatService {
   }
 
   private getMessageSourceInfo(row: Record<string, any>): { dbName?: string; tableName?: string; dbPath?: string } {
-    const dbPath = String(
+    const dbPath = String(row._db_path || row.db_path || '').trim()
-      this.getRowField(row, ['_db_path', 'db_path', 'dbPath', 'database_path', 'databasePath', 'source_db_path'])
+    const explicitDbName = String(row.db_name || '').trim()
-      || ''
+    const tableName = String(row.table_name || '').trim()
-    ).trim()
-    const explicitDbName = String(
-      this.getRowField(row, ['db_name', 'dbName', 'database_name', 'databaseName', 'db', 'database', 'source_db'])
-      || ''
-    ).trim()
-    const tableName = String(
-      this.getRowField(row, ['table_name', 'tableName', 'table', 'source_table', 'sourceTable'])
-      || ''
-    ).trim()
     const dbName = explicitDbName || (dbPath ? basename(dbPath, extname(dbPath)) : '')
     return {
       dbName: dbName || undefined,
@@ -3201,7 +3237,7 @@ class ChatService {
         if (!batch.success) break
         const rows = Array.isArray(batch.rows) ? batch.rows as Record<string, any>[] : []
         for (const row of rows) {
-          const localType = this.getRowInt(row, ['local_type', 'localType', 'type', 'msg_type', 'msgType', 'WCDB_CT_local_type'], 1)
+          const localType = this.getRowInt(row, ['local_type'], 1)
           if (localType === 50) {
             counters.callMessages += 1
             continue
@@ -3216,8 +3252,8 @@ class ChatService {
           }
           if (localType !== 49) continue
 
-          const rawMessageContent = this.getRowField(row, ['message_content', 'messageContent', 'msg_content', 'msgContent', 'content', 'WCDB_CT_message_content'])
+          const rawMessageContent = row.message_content
-          const rawCompressContent = this.getRowField(row, ['compress_content', 'compressContent', 'compressed_content', 'compressedContent', 'WCDB_CT_compress_content'])
+          const rawCompressContent = row.compress_content
           const content = this.decodeMessageContent(rawMessageContent, rawCompressContent)
           const xmlType = this.extractType49XmlTypeForStats(content)
           if (xmlType === '2000') counters.transferMessages += 1
@@ -3270,7 +3306,7 @@ class ChatService {
         for (const row of rows) {
           stats.totalMessages += 1
 
-          const localType = this.getRowInt(row, ['local_type', 'localType', 'type', 'msg_type', 'msgType', 'WCDB_CT_local_type'], 1)
+          const localType = this.getRowInt(row, ['local_type'], 1)
           if (localType === 34) stats.voiceMessages += 1
           if (localType === 3) stats.imageMessages += 1
           if (localType === 43) stats.videoMessages += 1
@@ -3279,8 +3315,8 @@ class ChatService {
           if (localType === 8589934592049) stats.transferMessages += 1
           if (localType === 8594229559345) stats.redPacketMessages += 1
           if (localType === 49) {
-            const rawMessageContent = this.getRowField(row, ['message_content', 'messageContent', 'msg_content', 'msgContent', 'content', 'WCDB_CT_message_content'])
+            const rawMessageContent = row.message_content
-            const rawCompressContent = this.getRowField(row, ['compress_content', 'compressContent', 'compressed_content', 'compressedContent', 'WCDB_CT_compress_content'])
+            const rawCompressContent = row.compress_content
             const content = this.decodeMessageContent(rawMessageContent, rawCompressContent)
             const xmlType = this.extractType49XmlTypeForStats(content)
             if (xmlType === '2000') stats.transferMessages += 1
@@ -3289,7 +3325,7 @@ class ChatService {
 
           const createTime = this.getRowInt(
             row,
-            ['create_time', 'createTime', 'createtime', 'msg_create_time', 'msgCreateTime', 'msg_time', 'msgTime', 'time', 'WCDB_CT_create_time'],
+            ['create_time'],
             0
           )
           if (createTime > 0) {
@@ -3302,7 +3338,7 @@ class ChatService {
           }
 
           if (sessionId.endsWith('@chatroom')) {
-            const sender = String(this.getRowField(row, ['sender_username', 'senderUsername', 'sender', 'WCDB_CT_sender_username']) || '').trim()
+            const sender = String(row.sender_username || '').trim()
             const senderKeys = this.buildIdentityKeys(sender)
             if (senderKeys.length > 0) {
               senderIdentities.add(senderKeys[0])
@@ -3310,7 +3346,7 @@ class ChatService {
                 stats.groupMyMessages = (stats.groupMyMessages || 0) + 1
               }
             } else {
-              const isSend = this.coerceRowNumber(this.getRowField(row, ['computed_is_send', 'computedIsSend', 'is_send', 'isSend', 'WCDB_CT_is_send']))
+              const isSend = this.coerceRowNumber(row.computed_is_send ?? row.is_send)
               if (Number.isFinite(isSend) && isSend === 1) {
                 stats.groupMyMessages = (stats.groupMyMessages || 0) + 1
               }
@@ -3744,32 +3780,18 @@ class ChatService {
     const messages: Message[] = []
     for (const row of rows) {
       const sourceInfo = this.getMessageSourceInfo(row)
-      const rawMessageContent = this.getRowField(row, [
+      const rawMessageContent = row.message_content
-        'message_content',
+      const rawCompressContent = row.compress_content
-        'messageContent',
-        'content',
-        'msg_content',
-        'msgContent',
-        'WCDB_CT_message_content',
-        'WCDB_CT_messageContent'
-      ]);
-      const rawCompressContent = this.getRowField(row, [
-        'compress_content',
-        'compressContent',
-        'compressed_content',
-        'WCDB_CT_compress_content',
-        'WCDB_CT_compressContent'
-      ]);
 
       const content = this.decodeMessageContent(rawMessageContent, rawCompressContent);
-      const localType = this.getRowInt(row, ['local_type', 'localType', 'type', 'msg_type', 'msgType', 'WCDB_CT_local_type'], 1)
+      const localType = this.getRowInt(row, ['local_type'], 1)
-      const isSendRaw = this.getRowField(row, ['computed_is_send', 'computedIsSend', 'is_send', 'isSend', 'WCDB_CT_is_send'])
+      const isSendRaw = row.computed_is_send ?? row.is_send
       const parsedRawIsSend = isSendRaw === null ? null : parseInt(isSendRaw, 10)
-      const senderUsername = this.getRowField(row, ['sender_username', 'senderUsername', 'sender', 'WCDB_CT_sender_username'])
+      const senderUsername = row.sender_username
         || this.extractSenderUsernameFromContent(content)
         || null
       const { isSend } = this.resolveMessageIsSend(parsedRawIsSend, senderUsername)
-      const createTime = this.getRowInt(row, ['create_time', 'createTime', 'createtime', 'msg_create_time', 'msgCreateTime', 'msg_time', 'msgTime', 'time', 'WCDB_CT_create_time'], 0)
+      const createTime = this.getRowInt(row, ['create_time'], 0)
 
       if (senderUsername && !myWxid) {
         // [DEBUG] Issue #34: 未配置 myWxid，无法判断是否发送
@@ -3954,10 +3976,10 @@ class ChatService {
         if (!quotedSender && type49Info.quotedSender !== undefined) quotedSender = type49Info.quotedSender
       }
 
-      const localId = this.getRowInt(row, ['local_id', 'localId', 'LocalId', 'msg_local_id', 'msgLocalId', 'MsgLocalId', 'msg_id', 'msgId', 'MsgId', 'id', 'WCDB_CT_local_id'], 0)
+      const localId = this.getRowInt(row, ['local_id'], 0)
-      const serverIdRaw = this.normalizeUnsignedIntegerToken(this.getRowField(row, ['server_id', 'serverId', 'ServerId', 'msg_server_id', 'msgServerId', 'MsgServerId', 'WCDB_CT_server_id']))
+      const serverIdRaw = this.normalizeUnsignedIntegerToken(row.server_id)
-      const serverId = this.getRowInt(row, ['server_id', 'serverId', 'ServerId', 'msg_server_id', 'msgServerId', 'MsgServerId', 'WCDB_CT_server_id'], 0)
+      const serverId = this.getRowInt(row, ['server_id'], 0)
-      const sortSeq = this.getRowInt(row, ['sort_seq', 'sortSeq', 'seq', 'sequence', 'WCDB_CT_sort_seq'], createTime)
+      const sortSeq = this.getRowInt(row, ['sort_seq'], createTime)
 
       messages.push({
         messageKey: this.buildMessageKey({
@@ -4404,18 +4426,7 @@ class ChatService {
   }
 
   private parseImageDatNameFromRow(row: Record<string, any>): string | undefined {
-    const packed = this.getRowField(row, [
+    const packed = row.packed_info_data
-      'packed_info_data',
-      'packed_info',
-      'packedInfoData',
-      'packedInfo',
-      'PackedInfoData',
-      'PackedInfo',
-      'WCDB_CT_packed_info_data',
-      'WCDB_CT_packed_info',
-      'WCDB_CT_PackedInfoData',
-      'WCDB_CT_PackedInfo'
-    ])
     const buffer = this.decodePackedInfo(packed)
     if (!buffer || buffer.length === 0) return undefined
     const printable: number[] = []
@@ -5303,14 +5314,14 @@ class ChatService {
     row: Record<string, any>,
     rawContent: string
   ): Promise<string | null> {
-    const directSender = this.getRowField(row, ['sender_username', 'senderUsername', 'sender', 'WCDB_CT_sender_username'])
+    const directSender = row.sender_username
       || this.extractSenderUsernameFromContent(rawContent)
     if (directSender) {
       return directSender
     }
 
-    const dbPath = this.getRowField(row, ['db_path', 'dbPath', '_db_path'])
+    const dbPath = row._db_path
-    const realSenderId = this.getRowField(row, ['real_sender_id', 'realSenderId'])
+    const realSenderId = row.real_sender_id
     if (!dbPath || realSenderId === null || realSenderId === undefined || String(realSenderId).trim() === '') {
       return null
     }
@@ -5359,7 +5370,7 @@ class ChatService {
       50: '[通话]',
       10000: '[系统消息]',
       244813135921: '[引用消息]',
-      266287972401: '[拍一拍]',
+      266287972401: '拍一拍',
       81604378673: '[聊天记录]',
       154618822705: '[小程序]',
       8594229559345: '[红包]',
@@ -5468,7 +5479,7 @@ class ChatService {
    *   XML: <msg><appmsg...><title>"XX"拍了拍"XX"相信未来!</title>...</msg>
    */
   private cleanPatMessage(content: string): string {
-    if (!content) return '[拍一拍]'
+    if (!content) return '拍一拍'
 
     // 1. 优先从 XML <title> 标签提取内容
     const titleMatch = /<title>([\s\S]*?)<\/title>/i.exec(content)
@@ -5478,14 +5489,14 @@ class ChatService {
         .replace(/\]\]>/g, '')
         .trim()
       if (title) {
-        return `[拍一拍] ${title}`
+        return title
       }
     }
 
     // 2. 尝试匹配标准的 "A拍了拍B" 格式
     const match = /^(.+?拍了拍.+?)(?:[\r\n]|$|ງ|wxid_)/.exec(content)
     if (match) {
-      return `[拍一拍] ${match[1].trim()}`
+      return match[1].trim()
     }
 
     // 3. 如果匹配失败，尝试清理掉疑似的 garbage (wxid, 乱码)
@@ -5499,10 +5510,10 @@ class ChatService {
 
     // 如果清理后还有内容，返回
     if (cleaned && cleaned.length > 1 && !cleaned.includes('xml')) {
-      return `[拍一拍] ${cleaned}`
+      return cleaned
     }
 
-    return '[拍一拍]'
+    return '拍一拍'
   }
 
   /**
@@ -7520,11 +7531,7 @@ class ChatService {
 
       for (const row of result.messages) {
         let message = await this.parseMessage(row, { source: 'search', sessionId })
-        const resolvedSessionId = String(
+        const resolvedSessionId = String(sessionId || row._session_id || '').trim()
-          sessionId ||
-          this.getRowField(row, ['_session_id', 'session_id', 'sessionId', 'talker', 'username'])
-          || ''
-        ).trim()
         const needsDetailHydration = isGroupSearch &&
           Boolean(sessionId) &&
           message.localId > 0 &&
@@ -7559,32 +7566,18 @@ class ChatService {
   private async parseMessage(row: any, options?: { source?: 'search' | 'detail'; sessionId?: string }): Promise<Message> {
     const sourceInfo = this.getMessageSourceInfo(row)
     const rawContent = this.decodeMessageContent(
-      this.getRowField(row, [
+      row.message_content,
-        'message_content',
+      row.compress_content
-        'messageContent',
-        'content',
-        'msg_content',
-        'msgContent',
-        'WCDB_CT_message_content',
-        'WCDB_CT_messageContent'
-      ]),
-      this.getRowField(row, [
-        'compress_content',
-        'compressContent',
-        'compressed_content',
-        'WCDB_CT_compress_content',
-        'WCDB_CT_compressContent'
-      ])
     )
     // 这里复用 parseMessagesBatch 里面的解析逻辑，为了简单我这里先写个基础的
     // 实际项目中建议抽取 parseRawMessage(row) 供多处使用
-    const localId = this.getRowInt(row, ['local_id', 'localId', 'LocalId', 'msg_local_id', 'msgLocalId', 'MsgLocalId', 'msg_id', 'msgId', 'MsgId', 'id', 'WCDB_CT_local_id'], 0)
+    const localId = this.getRowInt(row, ['local_id'], 0)
-    const serverIdRaw = this.normalizeUnsignedIntegerToken(this.getRowField(row, ['server_id', 'serverId', 'ServerId', 'msg_server_id', 'msgServerId', 'MsgServerId', 'WCDB_CT_server_id']))
+    const serverIdRaw = this.normalizeUnsignedIntegerToken(row.server_id)
-    const serverId = this.getRowInt(row, ['server_id', 'serverId', 'ServerId', 'msg_server_id', 'msgServerId', 'MsgServerId', 'WCDB_CT_server_id'], 0)
+    const serverId = this.getRowInt(row, ['server_id'], 0)
-    const localType = this.getRowInt(row, ['local_type', 'localType', 'type', 'msg_type', 'msgType', 'WCDB_CT_local_type'], 0)
+    const localType = this.getRowInt(row, ['local_type'], 0)
-    const createTime = this.getRowInt(row, ['create_time', 'createTime', 'createtime', 'msg_create_time', 'msgCreateTime', 'msg_time', 'msgTime', 'time', 'WCDB_CT_create_time'], 0)
+    const createTime = this.getRowInt(row, ['create_time'], 0)
-    const sortSeq = this.getRowInt(row, ['sort_seq', 'sortSeq', 'seq', 'sequence', 'WCDB_CT_sort_seq'], createTime)
+    const sortSeq = this.getRowInt(row, ['sort_seq'], createTime)
-    const rawIsSend = this.getRowField(row, ['computed_is_send', 'computedIsSend', 'is_send', 'isSend', 'WCDB_CT_is_send'])
+    const rawIsSend = row.computed_is_send ?? row.is_send
     const senderUsername = await this.resolveSenderUsernameForMessageRow(row, rawContent)
     const sendState = this.resolveMessageIsSend(rawIsSend === null ? null : parseInt(rawIsSend, 10), senderUsername)
     const msg: Message = {
@@ -7612,8 +7605,8 @@ class ChatService {
     }
 
     if (msg.localId === 0 || msg.createTime === 0) {
-      const rawLocalId = this.getRowField(row, ['local_id', 'localId', 'LocalId', 'msg_local_id', 'msgLocalId', 'MsgLocalId', 'msg_id', 'msgId', 'MsgId', 'id', 'WCDB_CT_local_id'])
+      const rawLocalId = row.local_id
-      const rawCreateTime = this.getRowField(row, ['create_time', 'createTime', 'createtime', 'msg_create_time', 'msgCreateTime', 'msg_time', 'msgTime', 'time', 'WCDB_CT_create_time'])
+      const rawCreateTime = row.create_time
       console.warn('[ChatService] parseMessage raw keys', {
         rawLocalId,
         rawLocalIdType: rawLocalId ? typeof rawLocalId : 'null',

electron/services/config.ts

@@ -61,6 +61,7 @@ interface ConfigSchema {
   windowCloseBehavior: 'ask' | 'tray' | 'quit'
   quoteLayout: 'quote-top' | 'quote-bottom'
   wordCloudExcludeWords: string[]
+  exportWriteLayout: 'A' | 'B' | 'C'
 }
 
 // 需要 safeStorage 加密的字段（普通模式）
@@ -133,7 +134,8 @@ export class ConfigService {
       messagePushEnabled: false,
       windowCloseBehavior: 'ask',
       quoteLayout: 'quote-top',
-      wordCloudExcludeWords: []
+      wordCloudExcludeWords: [],
+      exportWriteLayout: 'A'
     }
 
     const storeOptions: any = {

electron/services/exportService.ts

@@ -430,6 +430,8 @@ class ExportService {
     let lastSessionId = ''
     let lastCollected = 0
     let lastExported = 0
+    const MIN_PROGRESS_EMIT_INTERVAL_MS = 250
+    const MESSAGE_PROGRESS_DELTA_THRESHOLD = 500
 
     const commit = (progress: ExportProgress) => {
       onProgress(progress)
@@ -454,9 +456,9 @@ class ExportService {
       const shouldEmit = force ||
         phase !== lastPhase ||
         sessionId !== lastSessionId ||
-        collectedDelta >= 200 ||
+        collectedDelta >= MESSAGE_PROGRESS_DELTA_THRESHOLD ||
-        exportedDelta >= 200 ||
+        exportedDelta >= MESSAGE_PROGRESS_DELTA_THRESHOLD ||
-        (now - lastSentAt >= 120)
+        (now - lastSentAt >= MIN_PROGRESS_EMIT_INTERVAL_MS)
 
       if (shouldEmit && pending) {
         commit(pending)
@@ -3537,20 +3539,11 @@ class ExportService {
           console.log(`[Export] 使用缩略图替代 (localId=${msg.localId}): ${thumbResult.localPath}`)
           result.localPath = thumbResult.localPath
         } else {
-          console.log(`[Export] 缩略图也获取失败 (localId=${msg.localId}): error=${thumbResult.error || '未知'}`)
+          console.log(`[Export] 缩略图也获取失败，所有方式均失败 → 将显示 [图片] 占位符`)
-          // 最后尝试：直接从 imageStore 获取缓存的缩略图 data URL
+          if (missingRunCacheKey) {
-          const { imageStore } = await import('../main')
+            this.mediaRunMissingImageKeys.add(missingRunCacheKey)
-          const cachedThumb = imageStore?.getCachedImage(sessionId, imageMd5, imageDatName)
-          if (cachedThumb) {
-            console.log(`[Export] 从 imageStore 获取到缓存缩略图 (localId=${msg.localId})`)
-            result.localPath = cachedThumb
-          } else {
-            console.log(`[Export] 所有方式均失败 → 将显示 [图片] 占位符`)
-            if (missingRunCacheKey) {
-              this.mediaRunMissingImageKeys.add(missingRunCacheKey)
-            }
-            return null
           }
+          return null
         }
       }
 
@@ -3559,7 +3552,7 @@ class ExportService {
       const imageKey = (imageMd5 || imageDatName || 'image').replace(/[^a-zA-Z0-9_-]/g, '')
 
       // 从 data URL 或 file URL 获取实际路径
-      let sourcePath = result.localPath
+      let sourcePath: string = result.localPath!
       if (sourcePath.startsWith('data:')) {
         // 是 data URL，需要保存为文件
         const base64Data = sourcePath.split(',')[1]
@@ -8389,22 +8382,22 @@ class ExportService {
 
               const metric = aggregatedData?.[sessionId]
               const totalCount = Number.isFinite(metric?.totalMessages)
-                ? Math.max(0, Math.floor(metric!.totalMessages))
+                ? Math.max(0, Math.floor(metric?.totalMessages ?? 0))
                 : 0
               const voiceCount = Number.isFinite(metric?.voiceMessages)
-                ? Math.max(0, Math.floor(metric!.voiceMessages))
+                ? Math.max(0, Math.floor(metric?.voiceMessages ?? 0))
                 : 0
               const imageCount = Number.isFinite(metric?.imageMessages)
-                ? Math.max(0, Math.floor(metric!.imageMessages))
+                ? Math.max(0, Math.floor(metric?.imageMessages ?? 0))
                 : 0
               const videoCount = Number.isFinite(metric?.videoMessages)
-                ? Math.max(0, Math.floor(metric!.videoMessages))
+                ? Math.max(0, Math.floor(metric?.videoMessages ?? 0))
                 : 0
               const emojiCount = Number.isFinite(metric?.emojiMessages)
-                ? Math.max(0, Math.floor(metric!.emojiMessages))
+                ? Math.max(0, Math.floor(metric?.emojiMessages ?? 0))
                 : 0
               const lastTimestamp = Number.isFinite(metric?.lastTimestamp)
-                ? Math.max(0, Math.floor(metric!.lastTimestamp))
+                ? Math.max(0, Math.floor(metric?.lastTimestamp ?? 0))
                 : undefined
               const cachedCountRaw = Number(cachedVoiceCountMap[sessionId] || 0)
               const sessionCachedVoiceCount = Math.min(

electron/services/wcdbCore.ts

@@ -1,4 +1,4 @@
-import { join, dirname, basename } from 'path'
+import { join, dirname, basename } from 'path'
 import { appendFileSync, existsSync, mkdirSync, readdirSync, statSync, readFileSync } from 'fs'
 import { tmpdir } from 'os'
 
@@ -92,6 +92,9 @@ export class WcdbCore {
   private wcdbResolveImageHardlinkBatch: any = null
   private wcdbResolveVideoHardlinkMd5: any = null
   private wcdbResolveVideoHardlinkMd5Batch: any = null
+  private wcdbInstallMessageAntiRevokeTrigger: any = null
+  private wcdbUninstallMessageAntiRevokeTrigger: any = null
+  private wcdbCheckMessageAntiRevokeTrigger: any = null
   private wcdbInstallSnsBlockDeleteTrigger: any = null
   private wcdbUninstallSnsBlockDeleteTrigger: any = null
   private wcdbCheckSnsBlockDeleteTrigger: any = null
@@ -163,7 +166,7 @@ export class WcdbCore {
             pipePath = this.koffi.decode(namePtr[0], 'char', -1)
             this.wcdbFreeString(namePtr[0])
           }
-        } catch {}
+        } catch { }
       }
       this.connectMonitorPipe(pipePath)
       return true
@@ -181,7 +184,7 @@ export class WcdbCore {
     setTimeout(() => {
       if (!this.monitorCallback) return
 
-      this.monitorPipeClient = net.createConnection(this.monitorPipePath, () => {})
+      this.monitorPipeClient = net.createConnection(this.monitorPipePath, () => { })
 
       let buffer = ''
       this.monitorPipeClient.on('data', (data: Buffer) => {
@@ -273,7 +276,7 @@ export class WcdbCore {
     const isArm64 = process.arch === 'arm64'
     const libName = isMac ? 'libwcdb_api.dylib' : isLinux ? 'libwcdb_api.so' : 'wcdb_api.dll'
     const subDir = isMac ? 'macos' : isLinux ? 'linux' : (isArm64 ? 'arm64' : '')
-    
+
     const envDllPath = process.env.WCDB_DLL_PATH
     if (envDllPath && envDllPath.length > 0) {
       return envDllPath
@@ -313,7 +316,7 @@ export class WcdbCore {
       '-2302': 'WCDB 初始化异常，请重试',
       '-2303': 'WCDB 未能成功初始化',
     }
-    const msg = messages[String(code) as keyof typeof messages]
+    const msg = messages[String(code) as unknown as keyof typeof messages]
     return msg ? `${msg} (错误码: ${code})` : `操作失败，错误码: ${code}`
   }
 
@@ -643,7 +646,7 @@ export class WcdbCore {
       const dllDir = dirname(dllPath)
       const isMac = process.platform === 'darwin'
       const isLinux = process.platform === 'linux'
-      
+
       // 预加载依赖库
       if (isMac) {
         const wcdbCorePath = join(dllDir, 'libWCDB.dylib')
@@ -1077,6 +1080,27 @@ export class WcdbCore {
         this.wcdbResolveVideoHardlinkMd5Batch = null
       }
 
+      // wcdb_status wcdb_install_message_anti_revoke_trigger(wcdb_handle handle, const char* session_id, char** out_error)
+      try {
+        this.wcdbInstallMessageAntiRevokeTrigger = this.lib.func('int32 wcdb_install_message_anti_revoke_trigger(int64 handle, const char* sessionId, _Out_ void** outError)')
+      } catch {
+        this.wcdbInstallMessageAntiRevokeTrigger = null
+      }
+
+      // wcdb_status wcdb_uninstall_message_anti_revoke_trigger(wcdb_handle handle, const char* session_id, char** out_error)
+      try {
+        this.wcdbUninstallMessageAntiRevokeTrigger = this.lib.func('int32 wcdb_uninstall_message_anti_revoke_trigger(int64 handle, const char* sessionId, _Out_ void** outError)')
+      } catch {
+        this.wcdbUninstallMessageAntiRevokeTrigger = null
+      }
+
+      // wcdb_status wcdb_check_message_anti_revoke_trigger(wcdb_handle handle, const char* session_id, int32_t* out_installed)
+      try {
+        this.wcdbCheckMessageAntiRevokeTrigger = this.lib.func('int32 wcdb_check_message_anti_revoke_trigger(int64 handle, const char* sessionId, _Out_ int32* outInstalled)')
+      } catch {
+        this.wcdbCheckMessageAntiRevokeTrigger = null
+      }
+
       // wcdb_status wcdb_install_sns_block_delete_trigger(wcdb_handle handle, char** out_error)
       try {
         this.wcdbInstallSnsBlockDeleteTrigger = this.lib.func('int32 wcdb_install_sns_block_delete_trigger(int64 handle, _Out_ void** outError)')
@@ -1337,12 +1361,12 @@ export class WcdbCore {
     const raw = String(jsonStr || '')
     if (!raw) return []
     // 热路径优化：仅在检测到 16+ 位整数字段时才进行字符串包裹，避免每批次多轮全量 replace。
-    const needsInt64Normalize = /"(?:server_id|serverId|ServerId|msg_server_id|msgServerId|MsgServerId)"\s*:\s*-?\d{16,}/.test(raw)
+    const needsInt64Normalize = /"server_id"\s*:\s*-?\d{16,}/.test(raw)
     if (!needsInt64Normalize) {
       return JSON.parse(raw)
     }
     const normalized = raw.replace(
-      /("(?:server_id|serverId|ServerId|msg_server_id|msgServerId|MsgServerId)"\s*:\s*)(-?\d{16,})/g,
+      /("server_id"\s*:\s*)(-?\d{16,})/g,
       '$1"$2"'
     )
     return JSON.parse(normalized)
@@ -1655,6 +1679,9 @@ export class WcdbCore {
       const outCount = [0]
       const result = this.wcdbGetMessageCount(this.handle, sessionId, outCount)
       if (result !== 0) {
+        if (result === -7) {
+          return { success: false, error: 'message schema mismatch：当前账号消息表结构与程序要求不一致' }
+        }
         return { success: false, error: `获取消息总数失败: ${result}` }
       }
       return { success: true, count: outCount[0] }
@@ -1685,6 +1712,9 @@ export class WcdbCore {
         const sessionId = normalizedSessionIds[i]
         const outCount = [0]
         const result = this.wcdbGetMessageCount(this.handle, sessionId, outCount)
+        if (result === -7) {
+          return { success: false, error: `message schema mismatch：会话 ${sessionId} 的消息表结构不匹配` }
+        }
         counts[sessionId] = result === 0 && Number.isFinite(outCount[0]) ? Math.max(0, Math.floor(outCount[0])) : 0
 
         if (i > 0 && i % 160 === 0) {
@@ -1704,6 +1734,9 @@ export class WcdbCore {
       const outPtr = [null as any]
       const result = this.wcdbGetSessionMessageCounts(this.handle, JSON.stringify(sessionIds || []), outPtr)
       if (result !== 0 || !outPtr[0]) {
+        if (result === -7) {
+          return { success: false, error: 'message schema mismatch：当前账号消息表结构与程序要求不一致' }
+        }
         return { success: false, error: `获取会话消息总数失败: ${result}` }
       }
       const jsonStr = this.decodeJsonPtr(outPtr[0])
@@ -2661,7 +2694,9 @@ export class WcdbCore {
         )
         const hint = result === -3
           ? `创建游标失败: ${result}（消息数据库未找到）。如果你最近重装过微信，请尝试重新指定数据目录后重试`
-          : `创建游标失败: ${result}，请查看日志`
+          : result === -7
+            ? 'message schema mismatch：当前账号消息表结构与程序要求不一致'
+            : `创建游标失败: ${result}，请查看日志`
         return { success: false, error: hint }
       }
       return { success: true, cursor: outCursor[0] }
@@ -2719,6 +2754,9 @@ export class WcdbCore {
           `openMessageCursorLite failed: sessionId=${sessionId} batchSize=${batchSize} ascending=${ascending ? 1 : 0} begin=${beginTimestamp} end=${endTimestamp} result=${result} cursor=${outCursor[0]}`,
           true
         )
+        if (result === -7) {
+          return { success: false, error: 'message schema mismatch：当前账号消息表结构与程序要求不一致' }
+        }
         return { success: false, error: `创建游标失败: ${result}，请查看日志` }
       }
       return { success: true, cursor: outCursor[0] }
@@ -2790,14 +2828,14 @@ export class WcdbCore {
       if (!this.wcdbExecQuery) return { success: false, error: '接口未就绪' }
       const fallbackFlag = /fallback|diag|diagnostic/i.test(String(sql || ''))
       this.writeLog(`[audit:execQuery] kind=${kind} path=${path || ''} sql_len=${String(sql || '').length} fallback=${fallbackFlag ? 1 : 0}`)
-      
+
       // 如果提供了参数，使用参数化查询（需要 C++ 层支持）
       // 注意：当前 wcdbExecQuery 可能不支持参数化，这是一个占位符实现
       // TODO: 需要更新 C++ 层的 wcdb_exec_query 以支持参数绑定
       if (params && params.length > 0) {
         console.warn('[wcdbCore] execQuery: 参数化查询暂未在 C++ 层实现，将使用原始 SQL（可能存在注入风险）')
       }
-      
+
       const normalizedKind = String(kind || '').toLowerCase()
       const isContactQuery = normalizedKind === 'contact' || /\bfrom\s+contact\b/i.test(String(sql))
       let effectivePath = path || ''
@@ -3481,6 +3519,122 @@ export class WcdbCore {
       return { success: false, error: String(e) }
     }
   }
+
+  async installMessageAntiRevokeTrigger(sessionId: string): Promise<{ success: boolean; alreadyInstalled?: boolean; error?: string }> {
+    if (!this.ensureReady()) return { success: false, error: 'WCDB 未连接' }
+    if (!this.wcdbInstallMessageAntiRevokeTrigger) return { success: false, error: '当前 DLL 版本不支持此功能' }
+    const normalizedSessionId = String(sessionId || '').trim()
+    if (!normalizedSessionId) return { success: false, error: 'sessionId 不能为空' }
+    try {
+      const outPtr = [null]
+      const status = this.wcdbInstallMessageAntiRevokeTrigger(this.handle, normalizedSessionId, outPtr)
+      let msg = ''
+      if (outPtr[0]) {
+        try { msg = this.koffi.decode(outPtr[0], 'char', -1) } catch { }
+        try { this.wcdbFreeString(outPtr[0]) } catch { }
+      }
+      if (status === 1) {
+        return { success: true, alreadyInstalled: true }
+      }
+      if (status !== 0) {
+        return { success: false, error: msg || `DLL error ${status}` }
+      }
+      return { success: true, alreadyInstalled: false }
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
+  async uninstallMessageAntiRevokeTrigger(sessionId: string): Promise<{ success: boolean; error?: string }> {
+    if (!this.ensureReady()) return { success: false, error: 'WCDB 未连接' }
+    if (!this.wcdbUninstallMessageAntiRevokeTrigger) return { success: false, error: '当前 DLL 版本不支持此功能' }
+    const normalizedSessionId = String(sessionId || '').trim()
+    if (!normalizedSessionId) return { success: false, error: 'sessionId 不能为空' }
+    try {
+      const outPtr = [null]
+      const status = this.wcdbUninstallMessageAntiRevokeTrigger(this.handle, normalizedSessionId, outPtr)
+      let msg = ''
+      if (outPtr[0]) {
+        try { msg = this.koffi.decode(outPtr[0], 'char', -1) } catch { }
+        try { this.wcdbFreeString(outPtr[0]) } catch { }
+      }
+      if (status !== 0) {
+        return { success: false, error: msg || `DLL error ${status}` }
+      }
+      return { success: true }
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
+  async checkMessageAntiRevokeTrigger(sessionId: string): Promise<{ success: boolean; installed?: boolean; error?: string }> {
+    if (!this.ensureReady()) return { success: false, error: 'WCDB 未连接' }
+    if (!this.wcdbCheckMessageAntiRevokeTrigger) return { success: false, error: '当前 DLL 版本不支持此功能' }
+    const normalizedSessionId = String(sessionId || '').trim()
+    if (!normalizedSessionId) return { success: false, error: 'sessionId 不能为空' }
+    try {
+      const outInstalled = [0]
+      const status = this.wcdbCheckMessageAntiRevokeTrigger(this.handle, normalizedSessionId, outInstalled)
+      if (status !== 0) {
+        return { success: false, error: `DLL error ${status}` }
+      }
+      return { success: true, installed: outInstalled[0] === 1 }
+    } catch (e) {
+      return { success: false, error: String(e) }
+    }
+  }
+
+  async checkMessageAntiRevokeTriggers(sessionIds: string[]): Promise<{
+    success: boolean
+    rows?: Array<{ sessionId: string; success: boolean; installed?: boolean; error?: string }>
+    error?: string
+  }> {
+    if (!Array.isArray(sessionIds) || sessionIds.length === 0) {
+      return { success: true, rows: [] }
+    }
+    const uniqueIds = Array.from(new Set(sessionIds.map((id) => String(id || '').trim()).filter(Boolean)))
+    const rows: Array<{ sessionId: string; success: boolean; installed?: boolean; error?: string }> = []
+    for (const sessionId of uniqueIds) {
+      const result = await this.checkMessageAntiRevokeTrigger(sessionId)
+      rows.push({ sessionId, success: result.success, installed: result.installed, error: result.error })
+    }
+    return { success: true, rows }
+  }
+
+  async installMessageAntiRevokeTriggers(sessionIds: string[]): Promise<{
+    success: boolean
+    rows?: Array<{ sessionId: string; success: boolean; alreadyInstalled?: boolean; error?: string }>
+    error?: string
+  }> {
+    if (!Array.isArray(sessionIds) || sessionIds.length === 0) {
+      return { success: true, rows: [] }
+    }
+    const uniqueIds = Array.from(new Set(sessionIds.map((id) => String(id || '').trim()).filter(Boolean)))
+    const rows: Array<{ sessionId: string; success: boolean; alreadyInstalled?: boolean; error?: string }> = []
+    for (const sessionId of uniqueIds) {
+      const result = await this.installMessageAntiRevokeTrigger(sessionId)
+      rows.push({ sessionId, success: result.success, alreadyInstalled: result.alreadyInstalled, error: result.error })
+    }
+    return { success: true, rows }
+  }
+
+  async uninstallMessageAntiRevokeTriggers(sessionIds: string[]): Promise<{
+    success: boolean
+    rows?: Array<{ sessionId: string; success: boolean; error?: string }>
+    error?: string
+  }> {
+    if (!Array.isArray(sessionIds) || sessionIds.length === 0) {
+      return { success: true, rows: [] }
+    }
+    const uniqueIds = Array.from(new Set(sessionIds.map((id) => String(id || '').trim()).filter(Boolean)))
+    const rows: Array<{ sessionId: string; success: boolean; error?: string }> = []
+    for (const sessionId of uniqueIds) {
+      const result = await this.uninstallMessageAntiRevokeTrigger(sessionId)
+      rows.push({ sessionId, success: result.success, error: result.error })
+    }
+    return { success: true, rows }
+  }
+
   /**
    * 为朋友圈安装删除
    */

electron/services/wcdbService.ts

@@ -561,6 +561,24 @@ export class WcdbService {
     return this.callWorker('getSnsExportStats', { myWxid })
   }
 
+  async checkMessageAntiRevokeTriggers(
+    sessionIds: string[]
+  ): Promise<{ success: boolean; rows?: Array<{ sessionId: string; success: boolean; installed?: boolean; error?: string }>; error?: string }> {
+    return this.callWorker('checkMessageAntiRevokeTriggers', { sessionIds })
+  }
+
+  async installMessageAntiRevokeTriggers(
+    sessionIds: string[]
+  ): Promise<{ success: boolean; rows?: Array<{ sessionId: string; success: boolean; alreadyInstalled?: boolean; error?: string }>; error?: string }> {
+    return this.callWorker('installMessageAntiRevokeTriggers', { sessionIds })
+  }
+
+  async uninstallMessageAntiRevokeTriggers(
+    sessionIds: string[]
+  ): Promise<{ success: boolean; rows?: Array<{ sessionId: string; success: boolean; error?: string }>; error?: string }> {
+    return this.callWorker('uninstallMessageAntiRevokeTriggers', { sessionIds })
+  }
+
   /**
    * 安装朋友圈删除拦截
    */

electron/wcdbWorker.ts

@@ -230,6 +230,15 @@ if (parentPort) {
                 case 'getSnsExportStats':
                     result = await core.getSnsExportStats(payload.myWxid)
                     break
+                case 'checkMessageAntiRevokeTriggers':
+                    result = await core.checkMessageAntiRevokeTriggers(payload.sessionIds)
+                    break
+                case 'installMessageAntiRevokeTriggers':
+                    result = await core.installMessageAntiRevokeTriggers(payload.sessionIds)
+                    break
+                case 'uninstallMessageAntiRevokeTriggers':
+                    result = await core.uninstallMessageAntiRevokeTriggers(payload.sessionIds)
+                    break
                 case 'installSnsBlockDeleteTrigger':
                     result = await core.installSnsBlockDeleteTrigger()
                     break

src/pages/ChatPage.scss

@@ -2127,6 +2127,24 @@
   display: block;
   box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
   -webkit-app-region: no-drag;
+  transition: opacity 0.18s ease;
+}
+
+.image-message.pending {
+  opacity: 0;
+}
+
+.image-message.ready {
+  opacity: 1;
+}
+
+.image-stage {
+  display: inline-block;
+  -webkit-app-region: no-drag;
+}
+
+.image-stage.locked {
+  overflow: hidden;
 }
 
 .image-message-wrapper {

src/pages/ChatPage.tsx

@@ -1,5 +1,5 @@
 import React, { useState, useEffect, useRef, useCallback, useMemo } from 'react'
-import { Search, MessageSquare, AlertCircle, Loader2, RefreshCw, X, ChevronDown, ChevronLeft, Info, Calendar, Database, Hash, Play, Pause, Image as ImageIcon, Link, Mic, CheckCircle, Copy, Check, CheckSquare, Download, BarChart3, Edit2, Trash2, BellOff, Users, FolderClosed, UserCheck, Crown, Aperture, Newspaper } from 'lucide-react'
+import { Search, MessageSquare, AlertCircle, Loader2, RefreshCw, X, ChevronDown, ChevronLeft, Info, Calendar, Database, Hash, Play, Pause, Image as ImageIcon, Mic, CheckCircle, Copy, Check, CheckSquare, Download, BarChart3, Edit2, Trash2, BellOff, Users, FolderClosed, UserCheck, Crown, Aperture, Newspaper } from 'lucide-react'
 import { useNavigate } from 'react-router-dom'
 import { createPortal } from 'react-dom'
 import { Virtuoso, type VirtuosoHandle } from 'react-virtuoso'
@@ -64,6 +64,9 @@ const GLOBAL_MSG_LEGACY_CONCURRENCY = 6
 const GLOBAL_MSG_SEARCH_CANCELED_ERROR = '__WEFLOW_GLOBAL_MSG_SEARCH_CANCELED__'
 const GLOBAL_MSG_SHADOW_COMPARE_SAMPLE_RATE = 0.2
 const GLOBAL_MSG_SHADOW_COMPARE_STORAGE_KEY = 'weflow.debug.searchShadowCompare'
+const MESSAGE_LIST_SCROLL_IDLE_MS = 160
+const MESSAGE_TOP_WHEEL_LOAD_COOLDOWN_MS = 160
+const MESSAGE_EDGE_TRIGGER_DISTANCE_PX = 96
 
 function isGlobalMsgSearchCanceled(error: unknown): boolean {
   return String(error || '') === GLOBAL_MSG_SEARCH_CANCELED_ERROR
@@ -210,6 +213,12 @@ function sortMessagesByCreateTimeDesc<T extends Pick<Message, 'createTime' | 'lo
   })
 }
 
+function isRenderableImageSrc(value?: string | null): boolean {
+  const src = String(value || '').trim()
+  if (!src) return false
+  return /^(https?:\/\/|data:image\/|blob:|file:\/\/|\/)/i.test(src)
+}
+
 function normalizeSearchIdentityText(value?: string | null): string | undefined {
   const normalized = String(value || '').trim()
   if (!normalized) return undefined
@@ -1179,7 +1188,12 @@ function ChatPage(props: ChatPageProps) {
   const visibleMessageRangeRef = useRef<{ startIndex: number; endIndex: number }>({ startIndex: 0, endIndex: 0 })
   const topRangeLoadLockRef = useRef(false)
   const bottomRangeLoadLockRef = useRef(false)
+  const topRangeLoadLastTriggerAtRef = useRef(0)
   const suppressAutoLoadLaterRef = useRef(false)
+  const suppressAutoScrollOnNextMessageGrowthRef = useRef(false)
+  const prependingHistoryRef = useRef(false)
+  const isMessageListScrollingRef = useRef(false)
+  const messageListScrollTimeoutRef = useRef<number | null>(null)
   const searchInputRef = useRef<HTMLInputElement>(null)
   const sidebarRef = useRef<HTMLDivElement>(null)
   const handleMessageListScrollParentRef = useCallback((node: HTMLDivElement | null) => {
@@ -1400,6 +1414,18 @@ function ChatPage(props: ChatPageProps) {
     }, delayMs)
   }, [])
 
+  const markMessageListScrolling = useCallback(() => {
+    isMessageListScrollingRef.current = true
+    if (messageListScrollTimeoutRef.current !== null) {
+      window.clearTimeout(messageListScrollTimeoutRef.current)
+      messageListScrollTimeoutRef.current = null
+    }
+    messageListScrollTimeoutRef.current = window.setTimeout(() => {
+      isMessageListScrollingRef.current = false
+      messageListScrollTimeoutRef.current = null
+    }, MESSAGE_LIST_SCROLL_IDLE_MS)
+  }, [])
+
   const isGroupChatSession = useCallback((username: string) => {
     return username.includes('@chatroom')
   }, [])
@@ -3246,6 +3272,29 @@ function ChatPage(props: ChatPageProps) {
     runWarmup()
   }, [loadContactInfoBatch])
 
+  const scheduleGroupSenderWarmup = useCallback((usernames: string[], defer = false) => {
+    if (!Array.isArray(usernames) || usernames.length === 0) return
+    const run = () => warmupGroupSenderProfiles(usernames, false)
+    if (!defer && !isMessageListScrollingRef.current) {
+      run()
+      return
+    }
+
+    const runWhenIdle = () => {
+      if (isMessageListScrollingRef.current) {
+        window.setTimeout(runWhenIdle, MESSAGE_LIST_SCROLL_IDLE_MS)
+        return
+      }
+      run()
+    }
+
+    if ('requestIdleCallback' in window) {
+      window.requestIdleCallback(runWhenIdle, { timeout: 1200 })
+    } else {
+      window.setTimeout(runWhenIdle, MESSAGE_LIST_SCROLL_IDLE_MS)
+    }
+  }, [warmupGroupSenderProfiles])
+
   // 加载消息
   const loadMessages = async (
     sessionId: string,
@@ -3255,6 +3304,10 @@ function ChatPage(props: ChatPageProps) {
     ascending = false,
     options: LoadMessagesOptions = {}
   ) => {
+    const isPrependHistoryLoad = offset > 0 && !ascending
+    if (isPrependHistoryLoad) {
+      prependingHistoryRef.current = true
+    }
     const listEl = messageListRef.current
     const session = sessionMapRef.current.get(sessionId)
     const unreadCount = session?.unreadCount ?? 0
@@ -3288,10 +3341,6 @@ function ChatPage(props: ChatPageProps) {
       Math.max(visibleRange.startIndex, 0),
       Math.max(messages.length - 1, 0)
     )
-    const anchorMessageKeyBeforePrepend = offset > 0 && messages.length > 0
-      ? getMessageKey(messages[visibleStartIndex])
-      : null
-
     // 记录加载前的第一条消息元素（非虚拟列表回退路径）
     const firstMsgEl = listEl?.querySelector('.message-wrapper') as HTMLElement | null
 
@@ -3340,12 +3389,11 @@ function ChatPage(props: ChatPageProps) {
               .map(m => m.senderUsername as string)
             )]
             if (unknownSenders.length > 0) {
-              warmupGroupSenderProfiles(unknownSenders, options.deferGroupSenderWarmup === true)
+              scheduleGroupSenderWarmup(unknownSenders, options.deferGroupSenderWarmup === true)
             }
           }
 
           // 日期跳转时滚动到顶部，否则滚动到底部
-          const loadedMessages = result.messages
           requestAnimationFrame(() => {
             if (isDateJumpRef.current) {
               if (messageVirtuosoRef.current && resultMessages.length > 0) {
@@ -3365,6 +3413,19 @@ function ChatPage(props: ChatPageProps) {
             }
           })
         } else {
+          const existingMessageKeys = messageKeySetRef.current
+          const incomingSeen = new Set<string>()
+          let prependedInsertedCount = 0
+          for (const row of resultMessages) {
+            const key = getMessageKey(row)
+            if (incomingSeen.has(key)) continue
+            incomingSeen.add(key)
+            if (!existingMessageKeys.has(key)) {
+              prependedInsertedCount += 1
+            }
+          }
+
+          suppressAutoScrollOnNextMessageGrowthRef.current = true
           appendMessages(resultMessages, true)
 
           // 加载更多也同样处理发送者信息预取
@@ -3375,24 +3436,20 @@ function ChatPage(props: ChatPageProps) {
               .map(m => m.senderUsername as string)
             )]
             if (unknownSenders.length > 0) {
-              warmupGroupSenderProfiles(unknownSenders, false)
+              scheduleGroupSenderWarmup(unknownSenders, false)
             }
           }
 
           // 加载更早消息后保持视口锚点，避免跳屏
-          const appendedMessages = result.messages
           requestAnimationFrame(() => {
             if (messageVirtuosoRef.current) {
-              if (anchorMessageKeyBeforePrepend) {
+              const latestMessages = useChatStore.getState().messages || []
-                const latestMessages = useChatStore.getState().messages || []
+              const anchorIndex = Math.min(
-                const anchorIndex = latestMessages.findIndex((msg) => getMessageKey(msg) === anchorMessageKeyBeforePrepend)
+                Math.max(visibleStartIndex + prependedInsertedCount, 0),
-                if (anchorIndex >= 0) {
+                Math.max(latestMessages.length - 1, 0)
-                  messageVirtuosoRef.current.scrollToIndex({ index: anchorIndex, align: 'start', behavior: 'auto' })
+              )
-                  return
+              if (latestMessages.length > 0) {
-                }
+                messageVirtuosoRef.current.scrollToIndex({ index: anchorIndex, align: 'start', behavior: 'auto' })
-              }
-              if (resultMessages.length > 0) {
-                messageVirtuosoRef.current.scrollToIndex({ index: resultMessages.length, align: 'start', behavior: 'auto' })
               }
               return
             }
@@ -3432,6 +3489,11 @@ function ChatPage(props: ChatPageProps) {
         setMessages([])
       }
     } finally {
+      if (isPrependHistoryLoad) {
+        requestAnimationFrame(() => {
+          prependingHistoryRef.current = false
+        })
+      }
       setLoadingMessages(false)
       setLoadingMore(false)
       if (offset === 0 && pendingSessionLoadRef.current === sessionId) {
@@ -3462,9 +3524,11 @@ function ChatPage(props: ChatPageProps) {
     setCurrentOffset(0)
     setJumpStartTime(0)
     setJumpEndTime(end)
+    suppressAutoLoadLaterRef.current = true
     setShowJumpPopover(false)
     void loadMessages(targetSessionId, 0, 0, end, false, {
-      switchRequestSeq: options.switchRequestSeq
+      switchRequestSeq: options.switchRequestSeq,
+      forceInitialLimit: 120
     })
   }, [currentSessionId, loadMessages])
 
@@ -4380,36 +4444,6 @@ function ChatPage(props: ChatPageProps) {
       return
     }
 
-    if (range.endIndex >= Math.max(total - 2, 0)) {
-      isMessageListAtBottomRef.current = true
-      setShowScrollToBottom(prev => (prev ? false : prev))
-    }
-
-    if (
-      range.startIndex <= 2 &&
-      !topRangeLoadLockRef.current &&
-      !isLoadingMore &&
-      !isLoadingMessages &&
-      hasMoreMessages &&
-      currentSessionId
-    ) {
-      topRangeLoadLockRef.current = true
-      void loadMessages(currentSessionId, currentOffset, jumpStartTime, jumpEndTime)
-    }
-
-    if (
-      range.endIndex >= total - 3 &&
-      !bottomRangeLoadLockRef.current &&
-      !suppressAutoLoadLaterRef.current &&
-      !isLoadingMore &&
-      !isLoadingMessages &&
-      hasMoreLater &&
-      currentSessionId
-    ) {
-      bottomRangeLoadLockRef.current = true
-      void loadLaterMessages()
-    }
-
     if (shouldWarmupVisibleGroupSenders) {
       const now = Date.now()
       if (now - lastVisibleSenderWarmupAtRef.current >= 180) {
@@ -4428,27 +4462,18 @@ function ChatPage(props: ChatPageProps) {
           if (pendingUsernames.size >= 24) break
         }
         if (pendingUsernames.size > 0) {
-          warmupGroupSenderProfiles([...pendingUsernames], false)
+          scheduleGroupSenderWarmup([...pendingUsernames], false)
         }
       }
     }
   }, [
     messages.length,
-    isLoadingMore,
-    isLoadingMessages,
-    hasMoreMessages,
-    hasMoreLater,
     currentSessionId,
-    currentOffset,
-    jumpStartTime,
-    jumpEndTime,
     isGroupChatSession,
     standaloneSessionWindow,
     normalizedInitialSessionId,
     normalizedStandaloneInitialContactType,
-    warmupGroupSenderProfiles,
+    scheduleGroupSenderWarmup
-    loadMessages,
-    loadLaterMessages
   ])
 
   const handleMessageAtBottomStateChange = useCallback((atBottom: boolean) => {
@@ -4462,9 +4487,8 @@ function ChatPage(props: ChatPageProps) {
     const distanceFromBottom = listEl
       ? (listEl.scrollHeight - (listEl.scrollTop + listEl.clientHeight))
       : Number.POSITIVE_INFINITY
-    const nearBottomByRange = visibleMessageRangeRef.current.endIndex >= Math.max(messages.length - 2, 0)
     const nearBottomByDistance = distanceFromBottom <= 140
-    const effectiveAtBottom = atBottom || nearBottomByRange || nearBottomByDistance
+    const effectiveAtBottom = atBottom || nearBottomByDistance
     isMessageListAtBottomRef.current = effectiveAtBottom
 
     if (!effectiveAtBottom) {
@@ -4492,19 +4516,48 @@ function ChatPage(props: ChatPageProps) {
   }, [messages.length, isLoadingMessages, isLoadingMore, isSessionSwitching])
 
   const handleMessageListWheel = useCallback((event: React.WheelEvent<HTMLDivElement>) => {
-    if (event.deltaY <= 18) return
+    markMessageListScrolling()
-    if (!currentSessionId || isLoadingMore || isLoadingMessages || !hasMoreLater) return
+    if (!currentSessionId || isLoadingMore || isLoadingMessages) return
     const listEl = messageListRef.current
     if (!listEl) return
+    const distanceFromTop = listEl.scrollTop
     const distanceFromBottom = listEl.scrollHeight - (listEl.scrollTop + listEl.clientHeight)
-    if (distanceFromBottom > 96) return
+
+    if (event.deltaY <= -18) {
+      if (!hasMoreMessages) return
+      if (distanceFromTop > MESSAGE_EDGE_TRIGGER_DISTANCE_PX) return
+      if (topRangeLoadLockRef.current) return
+      const now = Date.now()
+      if (now - topRangeLoadLastTriggerAtRef.current < MESSAGE_TOP_WHEEL_LOAD_COOLDOWN_MS) return
+      topRangeLoadLastTriggerAtRef.current = now
+      topRangeLoadLockRef.current = true
+      isMessageListAtBottomRef.current = false
+      void loadMessages(currentSessionId, currentOffset, jumpStartTime, jumpEndTime)
+      return
+    }
+
+    if (event.deltaY <= 18) return
+    if (!hasMoreLater) return
+    if (distanceFromBottom > MESSAGE_EDGE_TRIGGER_DISTANCE_PX) return
     if (bottomRangeLoadLockRef.current) return
 
     // 用户明确向下滚动时允许加载后续消息
     suppressAutoLoadLaterRef.current = false
     bottomRangeLoadLockRef.current = true
     void loadLaterMessages()
-  }, [currentSessionId, hasMoreLater, isLoadingMessages, isLoadingMore, loadLaterMessages])
+  }, [
+    currentSessionId,
+    hasMoreLater,
+    hasMoreMessages,
+    isLoadingMessages,
+    isLoadingMore,
+    currentOffset,
+    jumpStartTime,
+    jumpEndTime,
+    markMessageListScrolling,
+    loadMessages,
+    loadLaterMessages
+  ])
 
   const handleMessageAtTopStateChange = useCallback((atTop: boolean) => {
     if (!atTop) {
@@ -4659,6 +4712,11 @@ function ChatPage(props: ChatPageProps) {
       if (sessionScrollTimeoutRef.current) {
         clearTimeout(sessionScrollTimeoutRef.current)
       }
+      if (messageListScrollTimeoutRef.current !== null) {
+        window.clearTimeout(messageListScrollTimeoutRef.current)
+        messageListScrollTimeoutRef.current = null
+      }
+      isMessageListScrollingRef.current = false
       contactUpdateQueueRef.current.clear()
       pendingSessionContactEnrichRef.current.clear()
       sessionContactEnrichAttemptAtRef.current.clear()
@@ -4699,8 +4757,12 @@ function ChatPage(props: ChatPageProps) {
     lastObservedMessageCountRef.current = currentCount
     if (currentCount <= previousCount) return
     if (!currentSessionId || isLoadingMessages || isSessionSwitching) return
-    const wasNearBottomByRange = visibleMessageRangeRef.current.endIndex >= Math.max(previousCount - 2, 0)
+    if (suppressAutoScrollOnNextMessageGrowthRef.current || prependingHistoryRef.current) {
-    if (!isMessageListAtBottomRef.current && !wasNearBottomByRange) return
+      suppressAutoScrollOnNextMessageGrowthRef.current = false
+      return
+    }
+    if (!isMessageListAtBottomRef.current) return
+    if (suppressAutoLoadLaterRef.current) return
     suppressScrollToBottomButton(220)
     isMessageListAtBottomRef.current = true
     requestAnimationFrame(() => {
@@ -6603,6 +6665,7 @@ function ChatPage(props: ChatPageProps) {
               <div
                 className={`message-list ${hasInitialMessages ? 'loaded' : 'loading'}`}
                 ref={handleMessageListScrollParentRef}
+                onScroll={markMessageListScrolling}
                 onWheel={handleMessageListWheel}
               >
                 {!isLoadingMessages && messages.length === 0 && !hasMoreMessages ? (
@@ -6616,8 +6679,12 @@ function ChatPage(props: ChatPageProps) {
                     className="message-virtuoso"
                     customScrollParent={messageListScrollParent ?? undefined}
                     data={messages}
-                    overscan={360}
+                    overscan={220}
-                    followOutput={(atBottom) => (atBottom || isMessageListAtBottomRef.current ? 'auto' : false)}
+                    followOutput={(atBottom) => (
+                      prependingHistoryRef.current
+                        ? false
+                        : (atBottom && isMessageListAtBottomRef.current ? 'auto' : false)
+                    )}
                     atBottomThreshold={80}
                     atBottomStateChange={handleMessageAtBottomStateChange}
                     atTopStateChange={handleMessageAtTopStateChange}
@@ -7659,6 +7726,8 @@ function MessageBubble({
   // State variables...
   const [imageError, setImageError] = useState(false)
   const [imageLoading, setImageLoading] = useState(false)
+  const [imageLoaded, setImageLoaded] = useState(false)
+  const [imageStageLockHeight, setImageStageLockHeight] = useState<number | null>(null)
   const [imageHasUpdate, setImageHasUpdate] = useState(false)
   const [imageClicked, setImageClicked] = useState(false)
   const imageUpdateCheckedRef = useRef<string | null>(null)
@@ -7704,6 +7773,11 @@ function MessageBubble({
   const videoContainerRef = useRef<HTMLElement>(null)
   const [isVideoVisible, setIsVideoVisible] = useState(false)
   const [videoMd5, setVideoMd5] = useState<string | null>(null)
+  const imageStageLockStyle = useMemo<React.CSSProperties | undefined>(() => (
+    imageStageLockHeight && imageStageLockHeight > 0
+      ? { height: `${Math.round(imageStageLockHeight)}px` }
+      : undefined
+  ), [imageStageLockHeight])
 
   // 解析视频 MD5
   useEffect(() => {
@@ -7847,6 +7921,14 @@ function MessageBubble({
     captureResizeBaseline(imageContainerRef.current, imageResizeBaselineRef)
   }, [captureResizeBaseline])
 
+  const lockImageStageHeight = useCallback(() => {
+    const host = imageContainerRef.current
+    if (!host) return
+    const height = host.getBoundingClientRect().height
+    if (!Number.isFinite(height) || height <= 0) return
+    setImageStageLockHeight(Math.round(height))
+  }, [])
+
   const captureEmojiResizeBaseline = useCallback(() => {
     captureResizeBaseline(emojiContainerRef.current, emojiResizeBaselineRef)
   }, [captureResizeBaseline])
@@ -7855,6 +7937,12 @@ function MessageBubble({
     stabilizeScrollAfterResize(imageContainerRef.current, imageResizeBaselineRef)
   }, [stabilizeScrollAfterResize])
 
+  const releaseImageStageLock = useCallback(() => {
+    window.requestAnimationFrame(() => {
+      setImageStageLockHeight(null)
+    })
+  }, [])
+
   const stabilizeEmojiScrollAfterResize = useCallback(() => {
     stabilizeScrollAfterResize(emojiContainerRef.current, emojiResizeBaselineRef)
   }, [stabilizeScrollAfterResize])
@@ -8008,6 +8096,7 @@ function MessageBubble({
           imageDataUrlCache.set(imageCacheKey, result.localPath)
           if (imageLocalPath !== result.localPath) {
             captureImageResizeBaseline()
+            lockImageStageHeight()
           }
           setImageLocalPath(result.localPath)
           setImageHasUpdate(false)
@@ -8023,6 +8112,7 @@ function MessageBubble({
         imageDataUrlCache.set(imageCacheKey, dataUrl)
         if (imageLocalPath !== dataUrl) {
           captureImageResizeBaseline()
+          lockImageStageHeight()
         }
         setImageLocalPath(dataUrl)
         setImageHasUpdate(false)
@@ -8036,7 +8126,7 @@ function MessageBubble({
       imageDecryptPendingRef.current = false
     }
     return { success: false }
-  }, [isImage, message.imageMd5, message.imageDatName, message.localId, session.username, imageCacheKey, detectImageMimeFromBase64, imageLocalPath, captureImageResizeBaseline])
+  }, [isImage, message.imageMd5, message.imageDatName, message.localId, session.username, imageCacheKey, detectImageMimeFromBase64, imageLocalPath, captureImageResizeBaseline, lockImageStageHeight])
 
   const triggerForceHd = useCallback(() => {
     if (!message.imageMd5 && !message.imageDatName) return
@@ -8099,6 +8189,7 @@ function MessageBubble({
           imageDataUrlCache.set(imageCacheKey, resolved.localPath)
           if (imageLocalPath !== resolved.localPath) {
             captureImageResizeBaseline()
+            lockImageStageHeight()
           }
           setImageLocalPath(resolved.localPath)
           if (resolved.liveVideoPath) setImageLiveVideoPath(resolved.liveVideoPath)
@@ -8113,6 +8204,7 @@ function MessageBubble({
     imageLocalPath,
     imageCacheKey,
     captureImageResizeBaseline,
+    lockImageStageHeight,
     message.imageDatName,
     message.imageMd5,
     requestImageDecrypt,
@@ -8127,6 +8219,16 @@ function MessageBubble({
     }
   }, [])
 
+  useEffect(() => {
+    setImageLoaded(false)
+  }, [imageLocalPath])
+
+  useEffect(() => {
+    if (imageLoading) return
+    if (!imageError && imageLocalPath) return
+    setImageStageLockHeight(null)
+  }, [imageError, imageLoading, imageLocalPath])
+
   useEffect(() => {
     if (!isImage || imageLoading) return
     if (!message.imageMd5 && !message.imageDatName) return
@@ -8143,6 +8245,7 @@ function MessageBubble({
         imageDataUrlCache.set(imageCacheKey, result.localPath)
         if (!imageLocalPath || imageLocalPath !== result.localPath) {
           captureImageResizeBaseline()
+          lockImageStageHeight()
           setImageLocalPath(result.localPath)
           setImageError(false)
         }
@@ -8153,7 +8256,7 @@ function MessageBubble({
     return () => {
       cancelled = true
     }
-  }, [isImage, imageLocalPath, imageLoading, message.imageMd5, message.imageDatName, imageCacheKey, session.username, captureImageResizeBaseline])
+  }, [isImage, imageLocalPath, imageLoading, message.imageMd5, message.imageDatName, imageCacheKey, session.username, captureImageResizeBaseline, lockImageStageHeight])
 
   useEffect(() => {
     if (!isImage) return
@@ -8187,6 +8290,7 @@ function MessageBubble({
         }
         if (imageLocalPath !== payload.localPath) {
           captureImageResizeBaseline()
+          lockImageStageHeight()
         }
         setImageLocalPath((prev) => (prev === payload.localPath ? prev : payload.localPath))
         setImageError(false)
@@ -8195,7 +8299,7 @@ function MessageBubble({
     return () => {
       unsubscribe?.()
     }
-  }, [isImage, imageCacheKey, imageLocalPath, message.imageDatName, message.imageMd5, captureImageResizeBaseline])
+  }, [isImage, imageCacheKey, imageLocalPath, message.imageDatName, message.imageMd5, captureImageResizeBaseline, lockImageStageHeight])
 
   // 图片进入视野前自动解密（懒加载）
   useEffect(() => {
@@ -8578,6 +8682,19 @@ function MessageBubble({
     appMsgTextCache.set(selector, value)
     return value
   }, [appMsgDoc, appMsgTextCache])
+  const appMsgThumbRawCandidate = useMemo(() => (
+    message.linkThumb ||
+    message.appMsgThumbUrl ||
+    queryAppMsgText('appmsg > thumburl') ||
+    queryAppMsgText('appmsg > cdnthumburl') ||
+    queryAppMsgText('appmsg > cover') ||
+    queryAppMsgText('appmsg > coverurl') ||
+    queryAppMsgText('thumburl') ||
+    queryAppMsgText('cdnthumburl') ||
+    queryAppMsgText('cover') ||
+    queryAppMsgText('coverurl') ||
+    ''
+  ).trim(), [message.linkThumb, message.appMsgThumbUrl, queryAppMsgText])
   const quotedSenderUsername = resolveQuotedSenderUsername(
     queryAppMsgText('refermsg > fromusr'),
     queryAppMsgText('refermsg > chatusr')
@@ -8711,6 +8828,17 @@ function MessageBubble({
   // Selection mode handling removed from here to allow normal rendering
   // We will wrap the output instead
   if (isSystem) {
+    const isPatSystemMessage = message.localType === 266287972401
+    const patTitleRaw = isPatSystemMessage
+      ? (queryAppMsgText('appmsg > title') || queryAppMsgText('title') || message.parsedContent || '')
+      : ''
+    const patDisplayText = isPatSystemMessage
+      ? cleanMessageContent(String(patTitleRaw).replace(/^\s*\[拍一拍\]\s*/i, ''))
+      : ''
+    const systemContentNode = isPatSystemMessage
+      ? renderTextWithEmoji(patDisplayText || '拍一拍')
+      : message.parsedContent
+
     return (
       <div
         className={`message-bubble system ${isSelectionMode ? 'selectable' : ''}`}
@@ -8739,7 +8867,7 @@ function MessageBubble({
             {isSelected && <Check size={14} strokeWidth={3} />}
           </div>
         )}
-        <div className="bubble-content">{message.parsedContent}</div>
+        <div className="bubble-content">{systemContentNode}</div>
       </div>
     )
   }
@@ -8748,7 +8876,11 @@ function MessageBubble({
   const renderContent = () => {
     if (isImage) {
       return (
-        <div ref={imageContainerRef}>
+        <div
+          ref={imageContainerRef}
+          className={`image-stage ${imageStageLockHeight ? 'locked' : ''}`}
+          style={imageStageLockStyle}
+        >
           {imageLoading ? (
             <div className="image-loading">
               <Loader2 size={20} className="spin" />
@@ -8770,15 +8902,19 @@ function MessageBubble({
                 <img
                   src={imageLocalPath}
                   alt="图片"
-                  className="image-message"
+                  className={`image-message ${imageLoaded ? 'ready' : 'pending'}`}
                   onClick={() => { void handleOpenImageViewer() }}
                   onLoad={() => {
+                    setImageLoaded(true)
                     setImageError(false)
                     stabilizeImageScrollAfterResize()
+                    releaseImageStageLock()
                   }}
                   onError={() => {
                     imageResizeBaselineRef.current = null
+                    setImageLoaded(false)
                     setImageError(true)
+                    releaseImageStageLock()
                   }}
                 />
                 {imageLiveVideoPath && (
@@ -9104,6 +9240,12 @@ function MessageBubble({
 
       const xmlType = message.xmlType || q('appmsg > type') || q('type')
 
+      // type 62: 拍一拍（按普通文本渲染，支持 [烟花] 这类 emoji 占位符）
+      if (xmlType === '62') {
+        const patText = cleanMessageContent((q('title') || cleanedParsedContent || '').replace(/^\s*\[拍一拍\]\s*/i, ''))
+        return <div className="bubble-content">{renderTextWithEmoji(patText || '拍一拍')}</div>
+      }
+
       // type 57: 引用回复消息，解析 refermsg 渲染为引用样式
       if (xmlType === '57') {
         const replyText = q('title') || cleanedParsedContent || ''
@@ -9147,7 +9289,8 @@ function MessageBubble({
       const title = message.linkTitle || q('title') || cleanedParsedContent || 'Card'
       const desc = message.appMsgDesc || q('des')
       const url = message.linkUrl || q('url')
-      const thumbUrl = message.linkThumb || message.appMsgThumbUrl || q('thumburl') || q('cdnthumburl') || q('cover') || q('coverurl')
+      const fallbackThumbUrl = appMsgThumbRawCandidate
+      const thumbUrl = isRenderableImageSrc(fallbackThumbUrl) ? fallbackThumbUrl : ''
       const musicUrl = message.appMsgMusicUrl || message.appMsgDataUrl || q('musicurl') || q('playurl') || q('dataurl') || q('lowurl')
       const sourceName = message.appMsgSourceName || q('sourcename')
       const sourceDisplayName = q('sourcedisplayname') || ''
@@ -9221,9 +9364,7 @@ function MessageBubble({
                 loading="lazy"
                 referrerPolicy="no-referrer"
               />
-            ) : (
+            ) : null}
-              <div className={`link-thumb-placeholder ${cardKind}`}>{cardKind.slice(0, 2).toUpperCase()}</div>
-            )}
           </div>
         </div>
       )
@@ -9663,9 +9804,6 @@ function MessageBubble({
             </div>
             <div className="link-body">
               <div className="link-desc" title={desc}>{desc}</div>
-              <div className="link-thumb-placeholder">
-                <Link size={24} />
-              </div>
             </div>
           </div>
         )

src/pages/ExportPage.tsx

@@ -181,6 +181,7 @@ interface ExportDialogState {
 
 const defaultTxtColumns = ['index', 'time', 'senderRole', 'messageType', 'content']
 const DETAIL_PRECISE_REFRESH_COOLDOWN_MS = 10 * 60 * 1000
+const TASK_PERFORMANCE_UPDATE_MIN_INTERVAL_MS = 900
 const SESSION_MEDIA_METRIC_PREFETCH_ROWS = 10
 const SESSION_MEDIA_METRIC_BATCH_SIZE = 8
 const SESSION_MEDIA_METRIC_BACKGROUND_FEED_SIZE = 48
@@ -311,9 +312,7 @@ const cloneTaskPerformance = (performance?: TaskPerformance): TaskPerformance =>
     write: performance?.stages.write || 0,
     other: performance?.stages.other || 0
   },
-  sessions: Object.fromEntries(
+  sessions: { ...(performance?.sessions || {}) }
-    Object.entries(performance?.sessions || {}).map(([sessionId, session]) => [sessionId, { ...session }])
-  )
 })
 
 const resolveTaskSessionName = (task: ExportTask, sessionId: string, fallback?: string): string => {
@@ -333,6 +332,18 @@ const applyProgressToTaskPerformance = (
   const sessionId = String(payload.currentSessionId || '').trim()
   if (!sessionId) return task.performance || createEmptyTaskPerformance()
 
+  const currentPerformance = task.performance
+  const currentSession = currentPerformance?.sessions?.[sessionId]
+  if (
+    payload.phase !== 'complete' &&
+    currentSession &&
+    currentSession.lastPhase === payload.phase &&
+    typeof currentSession.lastPhaseStartedAt === 'number' &&
+    now - currentSession.lastPhaseStartedAt < TASK_PERFORMANCE_UPDATE_MIN_INTERVAL_MS
+  ) {
+    return currentPerformance
+  }
+
   const performance = cloneTaskPerformance(task.performance)
   const sessionName = resolveTaskSessionName(task, sessionId, payload.currentSession || sessionId)
   const existing = performance.sessions[sessionId]
@@ -368,7 +379,9 @@ const applyProgressToTaskPerformance = (
 const finalizeTaskPerformance = (task: ExportTask, now: number): TaskPerformance | undefined => {
   if (!isTextBatchTask(task) || !task.performance) return task.performance
   const performance = cloneTaskPerformance(task.performance)
-  for (const session of Object.values(performance.sessions)) {
+  const nextSessions: Record<string, TaskSessionPerformance> = {}
+  for (const [sessionId, sourceSession] of Object.entries(performance.sessions)) {
+    const session: TaskSessionPerformance = { ...sourceSession }
     if (session.finishedAt) continue
     if (session.lastPhase && typeof session.lastPhaseStartedAt === 'number') {
       const delta = Math.max(0, now - session.lastPhaseStartedAt)
@@ -378,7 +391,13 @@ const finalizeTaskPerformance = (task: ExportTask, now: number): TaskPerformance
     session.finishedAt = now
     session.lastPhase = undefined
     session.lastPhaseStartedAt = undefined
+    nextSessions[sessionId] = session
   }
+  for (const [sessionId, sourceSession] of Object.entries(performance.sessions)) {
+    if (nextSessions[sessionId]) continue
+    nextSessions[sessionId] = { ...sourceSession }
+  }
+  performance.sessions = nextSessions
   return performance
 }
 
@@ -4697,7 +4716,7 @@ function ExportPage() {
         queuedProgressTimer = window.setTimeout(() => {
           queuedProgressTimer = null
           flushQueuedProgress()
-        }, 100)
+        }, 180)
       })
     }
     if (next.payload.scope === 'sns') {

src/pages/SettingsPage.scss

@@ -2934,3 +2934,488 @@
     }
   }
 }
+
+.anti-revoke-tab {
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+
+  .anti-revoke-hero {
+    display: flex;
+    align-items: flex-start;
+    justify-content: space-between;
+    gap: 18px;
+    padding: 18px;
+    border-radius: 18px;
+    border: 1px solid color-mix(in srgb, var(--border-color) 88%, transparent);
+    background: linear-gradient(
+      180deg,
+      color-mix(in srgb, var(--bg-secondary) 94%, var(--primary) 6%) 0%,
+      color-mix(in srgb, var(--bg-secondary) 96%, var(--bg-primary) 4%) 100%
+    );
+  }
+
+  .anti-revoke-hero-main {
+    min-width: 240px;
+
+    h3 {
+      margin: 0;
+      font-size: 19px;
+      font-weight: 600;
+      line-height: 1.3;
+      color: var(--text-primary);
+      letter-spacing: 0.3px;
+    }
+
+    p {
+      margin: 8px 0 0;
+      font-size: 13px;
+      color: var(--text-secondary);
+      line-height: 1.6;
+    }
+  }
+
+  .anti-revoke-metrics {
+    flex: 1;
+    display: grid;
+    grid-template-columns: repeat(4, minmax(112px, 1fr));
+    gap: 10px;
+    min-width: 460px;
+  }
+
+  .anti-revoke-metric {
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    gap: 6px;
+    padding: 12px 14px;
+    border-radius: 12px;
+    border: 1px solid color-mix(in srgb, var(--border-color) 90%, transparent);
+    background: color-mix(in srgb, var(--bg-primary) 93%, var(--bg-secondary) 7%);
+
+    .label {
+      font-size: 12px;
+      color: var(--text-secondary);
+      line-height: 1.2;
+      letter-spacing: 0.2px;
+    }
+
+    .value {
+      font-size: 30px;
+      font-weight: 700;
+      color: var(--text-primary);
+      line-height: 1;
+      font-variant-numeric: tabular-nums;
+    }
+
+    &.is-total {
+      border-color: color-mix(in srgb, var(--border-color) 78%, var(--primary) 22%);
+      background: color-mix(in srgb, var(--bg-primary) 88%, var(--primary) 12%);
+    }
+
+    &.is-installed {
+      border-color: color-mix(in srgb, var(--primary) 36%, var(--border-color));
+      background: color-mix(in srgb, var(--bg-primary) 90%, var(--primary) 10%);
+
+      .value {
+        color: var(--primary);
+      }
+    }
+
+    &.is-pending {
+      background: color-mix(in srgb, var(--bg-primary) 95%, var(--bg-secondary) 5%);
+
+      .value {
+        color: color-mix(in srgb, var(--text-primary) 82%, var(--text-secondary));
+      }
+    }
+
+    &.is-error {
+      border-color: color-mix(in srgb, var(--danger) 24%, var(--border-color));
+      background: color-mix(in srgb, var(--danger) 6%, var(--bg-primary));
+
+      .value {
+        color: color-mix(in srgb, var(--danger) 65%, var(--text-primary) 35%);
+      }
+    }
+  }
+
+  .anti-revoke-control-card {
+    border: 1px solid color-mix(in srgb, var(--border-color) 90%, transparent);
+    border-radius: 16px;
+    padding: 14px;
+    background: color-mix(in srgb, var(--bg-secondary) 95%, var(--bg-primary) 5%);
+  }
+
+  .anti-revoke-toolbar {
+    display: flex;
+    gap: 14px;
+    align-items: center;
+    justify-content: space-between;
+    margin-bottom: 12px;
+    flex-wrap: wrap;
+  }
+
+  .anti-revoke-search {
+    min-width: 280px;
+    flex: 1;
+    max-width: 420px;
+    border-radius: 10px;
+    background: color-mix(in srgb, var(--bg-primary) 85%, var(--bg-secondary) 15%);
+
+    input {
+      height: 36px;
+      font-size: 13px;
+    }
+  }
+
+  .anti-revoke-toolbar-actions {
+    display: flex;
+    align-items: stretch;
+    justify-content: flex-end;
+    gap: 10px;
+    flex-wrap: wrap;
+    margin-left: auto;
+  }
+
+  .anti-revoke-btn-group {
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
+    flex-wrap: wrap;
+  }
+
+  .anti-revoke-batch-actions {
+    display: flex;
+    align-items: flex-start;
+    gap: 12px;
+    flex-wrap: wrap;
+    justify-content: space-between;
+    border-top: 1px solid color-mix(in srgb, var(--border-color) 80%, transparent);
+    padding-top: 12px;
+  }
+
+  .anti-revoke-selected-count {
+    display: inline-flex;
+    align-items: center;
+    gap: 14px;
+    font-size: 12px;
+    color: var(--text-secondary);
+    margin-left: auto;
+    padding: 8px 12px;
+    border-radius: 10px;
+    border: 1px solid color-mix(in srgb, var(--border-color) 80%, transparent);
+    background: color-mix(in srgb, var(--bg-primary) 92%, var(--bg-secondary) 8%);
+
+    span {
+      position: relative;
+      line-height: 1.2;
+      white-space: nowrap;
+
+      strong {
+        color: var(--text-primary);
+        font-weight: 700;
+        font-variant-numeric: tabular-nums;
+      }
+
+      &:not(:last-child)::after {
+        content: '';
+        position: absolute;
+        right: -8px;
+        top: 50%;
+        width: 4px;
+        height: 4px;
+        border-radius: 50%;
+        background: color-mix(in srgb, var(--text-tertiary) 70%, transparent);
+        transform: translateY(-50%);
+      }
+    }
+  }
+
+  .anti-revoke-toolbar-actions .btn,
+  .anti-revoke-batch-actions .btn {
+    border-radius: 10px;
+    padding-inline: 14px;
+    border-width: 1px;
+    min-height: 36px;
+    justify-content: center;
+  }
+
+  .anti-revoke-summary {
+    padding: 11px 14px;
+    border-radius: 12px;
+    font-size: 13px;
+    border: 1px solid color-mix(in srgb, var(--border-color) 86%, transparent);
+    background: color-mix(in srgb, var(--bg-primary) 95%, var(--bg-secondary) 5%);
+    line-height: 1.5;
+    font-weight: 500;
+
+    &.success {
+      color: color-mix(in srgb, var(--primary) 72%, var(--text-primary) 28%);
+      border-color: color-mix(in srgb, var(--primary) 30%, var(--border-color));
+      background: color-mix(in srgb, var(--primary) 9%, var(--bg-primary));
+    }
+
+    &.error {
+      color: color-mix(in srgb, var(--danger) 70%, var(--text-primary) 30%);
+      border-color: color-mix(in srgb, var(--danger) 24%, var(--border-color));
+      background: color-mix(in srgb, var(--danger) 7%, var(--bg-primary));
+    }
+  }
+
+  .anti-revoke-list {
+    border: 1px solid color-mix(in srgb, var(--border-color) 90%, transparent);
+    border-radius: 16px;
+    background: var(--bg-primary);
+    max-height: 460px;
+    overflow-y: auto;
+    overflow-x: hidden;
+  }
+
+  .anti-revoke-list-header {
+    position: sticky;
+    top: 0;
+    z-index: 2;
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) auto;
+    align-items: center;
+    gap: 10px;
+    padding: 12px 16px;
+    background: color-mix(in srgb, var(--bg-secondary) 93%, var(--bg-primary) 7%);
+    border-bottom: 1px solid color-mix(in srgb, var(--border-color) 86%, transparent);
+    color: var(--text-tertiary);
+    font-size: 12px;
+    letter-spacing: 0.24px;
+  }
+
+  .anti-revoke-empty {
+    padding: 44px 18px;
+    font-size: 13px;
+    color: var(--text-secondary);
+    text-align: center;
+  }
+
+  .anti-revoke-row {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 14px;
+    padding: 13px 16px;
+    border-bottom: 1px solid color-mix(in srgb, var(--border-color) 84%, transparent);
+    transition: background-color 0.18s ease, box-shadow 0.18s ease;
+
+    &:last-child {
+      border-bottom: none;
+    }
+
+    &:hover {
+      background: color-mix(in srgb, var(--bg-secondary) 32%, var(--bg-primary) 68%);
+    }
+
+    &.selected {
+      background: color-mix(in srgb, var(--primary) 8%, var(--bg-primary));
+      box-shadow: inset 2px 0 0 color-mix(in srgb, var(--primary) 70%, transparent);
+    }
+  }
+
+  .anti-revoke-row-main {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+    flex: 1;
+    min-width: 0;
+    cursor: pointer;
+
+    .anti-revoke-check {
+      position: relative;
+      width: 18px;
+      height: 18px;
+      flex-shrink: 0;
+
+      input[type='checkbox'] {
+        position: absolute;
+        inset: 0;
+        margin: 0;
+        opacity: 0;
+        cursor: pointer;
+      }
+
+      .check-indicator {
+        width: 100%;
+        height: 100%;
+        border-radius: 6px;
+        border: 1px solid color-mix(in srgb, var(--border-color) 78%, var(--primary) 22%);
+        background: color-mix(in srgb, var(--bg-primary) 86%, var(--bg-secondary) 14%);
+        color: var(--on-primary, #fff);
+        display: inline-flex;
+        align-items: center;
+        justify-content: center;
+        transition: all 0.16s ease;
+
+        svg {
+          opacity: 0;
+          transform: scale(0.75);
+          transition: opacity 0.16s ease, transform 0.16s ease;
+        }
+      }
+
+      input[type='checkbox']:checked + .check-indicator {
+        background: var(--primary);
+        border-color: var(--primary);
+        box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
+
+        svg {
+          opacity: 1;
+          transform: scale(1);
+        }
+      }
+
+      input[type='checkbox']:focus-visible + .check-indicator {
+        outline: 2px solid color-mix(in srgb, var(--primary) 42%, transparent);
+        outline-offset: 1px;
+      }
+
+      input[type='checkbox']:disabled {
+        cursor: not-allowed;
+      }
+
+      input[type='checkbox']:disabled + .check-indicator {
+        opacity: 0.55;
+      }
+    }
+  }
+
+  .anti-revoke-row-text {
+    display: flex;
+    flex-direction: column;
+    gap: 2px;
+    min-width: 0;
+
+    .name {
+      font-size: 14px;
+      font-weight: 500;
+      color: var(--text-primary);
+      line-height: 1.2;
+      white-space: nowrap;
+      text-overflow: ellipsis;
+      overflow: hidden;
+    }
+  }
+
+  .anti-revoke-row-status {
+    display: flex;
+    flex-direction: column;
+    align-items: flex-end;
+    gap: 4px;
+    max-width: 45%;
+  }
+
+  .status-badge {
+    display: inline-flex;
+    align-items: center;
+    gap: 6px;
+    border-radius: 999px;
+    padding: 4px 10px;
+    font-size: 12px;
+    line-height: 1.3;
+    font-weight: 500;
+    border: 1px solid color-mix(in srgb, var(--border-color) 84%, transparent);
+    color: var(--text-secondary);
+    background: color-mix(in srgb, var(--bg-secondary) 90%, var(--bg-primary) 10%);
+
+    .status-dot {
+      width: 6px;
+      height: 6px;
+      border-radius: 50%;
+      background: var(--text-tertiary);
+      flex-shrink: 0;
+    }
+
+    &.installed {
+      color: var(--primary);
+      border-color: color-mix(in srgb, var(--primary) 35%, var(--border-color));
+      background: color-mix(in srgb, var(--primary) 10%, var(--bg-secondary));
+
+      .status-dot {
+        background: var(--primary);
+      }
+    }
+
+    &.not-installed {
+      color: var(--text-secondary);
+      border-color: color-mix(in srgb, var(--border-color) 84%, transparent);
+      background: color-mix(in srgb, var(--bg-secondary) 90%, var(--bg-primary) 10%);
+
+      .status-dot {
+        background: color-mix(in srgb, var(--text-tertiary) 86%, transparent);
+      }
+    }
+
+    &.checking {
+      color: color-mix(in srgb, var(--primary) 70%, var(--text-primary) 30%);
+      border-color: color-mix(in srgb, var(--primary) 30%, var(--border-color));
+      background: color-mix(in srgb, var(--primary) 9%, var(--bg-secondary));
+
+      .status-dot {
+        background: var(--primary);
+        animation: pulse 1.2s ease-in-out infinite;
+      }
+    }
+
+    &.error {
+      color: color-mix(in srgb, var(--danger) 72%, var(--text-primary) 28%);
+      border-color: color-mix(in srgb, var(--danger) 24%, var(--border-color));
+      background: color-mix(in srgb, var(--danger) 8%, var(--bg-secondary));
+
+      .status-dot {
+        background: var(--danger);
+      }
+    }
+  }
+
+  .status-error {
+    font-size: 12px;
+    color: color-mix(in srgb, var(--danger) 66%, var(--text-primary) 34%);
+    max-width: 100%;
+    white-space: nowrap;
+    text-overflow: ellipsis;
+    overflow: hidden;
+  }
+
+  @media (max-width: 980px) {
+    .anti-revoke-hero {
+      flex-direction: column;
+    }
+
+    .anti-revoke-metrics {
+      width: 100%;
+      min-width: 0;
+      grid-template-columns: repeat(2, minmax(130px, 1fr));
+    }
+
+    .anti-revoke-batch-actions {
+      align-items: flex-start;
+      flex-direction: column;
+    }
+
+    .anti-revoke-selected-count {
+      margin-left: 0;
+      width: 100%;
+      justify-content: flex-start;
+      overflow-x: auto;
+    }
+
+    .anti-revoke-row {
+      align-items: flex-start;
+      flex-direction: column;
+    }
+
+    .anti-revoke-row-status {
+      width: 100%;
+      flex-direction: row;
+      align-items: center;
+      justify-content: space-between;
+      max-width: none;
+    }
+  }
+}

src/pages/SettingsPage.tsx

@@ -15,11 +15,12 @@ import {
 import { Avatar } from '../components/Avatar'
 import './SettingsPage.scss'
 
-type SettingsTab = 'appearance' | 'notification' | 'database' | 'models' | 'cache' | 'api' | 'updates' | 'security' | 'about' | 'analytics'
+type SettingsTab = 'appearance' | 'notification' | 'antiRevoke' | 'database' | 'models' | 'cache' | 'api' | 'updates' | 'security' | 'about' | 'analytics'
 
 const tabs: { id: SettingsTab; label: string; icon: React.ElementType }[] = [
   { id: 'appearance', label: '外观', icon: Palette },
   { id: 'notification', label: '通知', icon: Bell },
+  { id: 'antiRevoke', label: '防撤回', icon: RotateCcw },
   { id: 'database', label: '数据库连接', icon: Database },
   { id: 'models', label: '模型管理', icon: Mic },
   { id: 'cache', label: '缓存', icon: HardDrive },
@@ -70,6 +71,8 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
     setShowUpdateDialog,
   } = useAppStore()
 
+  const chatSessions = useChatStore((state) => state.sessions)
+  const setChatSessions = useChatStore((state) => state.setSessions)
   const resetChatStore = useChatStore((state) => state.reset)
   const { currentTheme, themeMode, setTheme, setThemeMode } = useThemeStore()
   const [systemDark, setSystemDark] = useState(() => window.matchMedia('(prefers-color-scheme: dark)').matches)
@@ -200,6 +203,13 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
   const [isTogglingApi, setIsTogglingApi] = useState(false)
   const [showApiWarning, setShowApiWarning] = useState(false)
   const [messagePushEnabled, setMessagePushEnabled] = useState(false)
+  const [antiRevokeSearchKeyword, setAntiRevokeSearchKeyword] = useState('')
+  const [antiRevokeSelectedIds, setAntiRevokeSelectedIds] = useState<Set<string>>(new Set())
+  const [antiRevokeStatusMap, setAntiRevokeStatusMap] = useState<Record<string, { installed?: boolean; loading?: boolean; error?: string }>>({})
+  const [isAntiRevokeRefreshing, setIsAntiRevokeRefreshing] = useState(false)
+  const [isAntiRevokeInstalling, setIsAntiRevokeInstalling] = useState(false)
+  const [isAntiRevokeUninstalling, setIsAntiRevokeUninstalling] = useState(false)
+  const [antiRevokeSummary, setAntiRevokeSummary] = useState<{ action: 'refresh' | 'install' | 'uninstall'; success: number; failed: number } | null>(null)
 
   const isClearingCache = isClearingAnalyticsCache || isClearingImageCache || isClearingAllCache
 
@@ -586,6 +596,248 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
     }, 200)
   }
 
+  const normalizeSessionIds = (sessionIds: string[]): string[] =>
+    Array.from(new Set((sessionIds || []).map((id) => String(id || '').trim()).filter(Boolean)))
+
+  const getCurrentAntiRevokeSessionIds = (): string[] =>
+    normalizeSessionIds(chatSessions.map((session) => session.username))
+
+  const ensureAntiRevokeSessionsLoaded = async (): Promise<string[]> => {
+    const current = getCurrentAntiRevokeSessionIds()
+    if (current.length > 0) return current
+    const sessionsResult = await window.electronAPI.chat.getSessions()
+    if (!sessionsResult.success || !sessionsResult.sessions) {
+      throw new Error(sessionsResult.error || '加载会话失败')
+    }
+    setChatSessions(sessionsResult.sessions)
+    return normalizeSessionIds(sessionsResult.sessions.map((session) => session.username))
+  }
+
+  const markAntiRevokeRowsLoading = (sessionIds: string[]) => {
+    setAntiRevokeStatusMap((prev) => {
+      const next = { ...prev }
+      for (const sessionId of sessionIds) {
+        next[sessionId] = {
+          ...(next[sessionId] || {}),
+          loading: true,
+          error: undefined
+        }
+      }
+      return next
+    })
+  }
+
+  const handleRefreshAntiRevokeStatus = async (sessionIds?: string[]) => {
+    if (isAntiRevokeRefreshing || isAntiRevokeInstalling || isAntiRevokeUninstalling) return
+    setAntiRevokeSummary(null)
+    setIsAntiRevokeRefreshing(true)
+    try {
+      const targetIds = normalizeSessionIds(
+        sessionIds && sessionIds.length > 0
+          ? sessionIds
+          : await ensureAntiRevokeSessionsLoaded()
+      )
+      if (targetIds.length === 0) {
+        setAntiRevokeStatusMap({})
+        showMessage('暂无可检查的会话', true)
+        return
+      }
+      markAntiRevokeRowsLoading(targetIds)
+
+      const result = await window.electronAPI.chat.checkAntiRevokeTriggers(targetIds)
+      if (!result.success || !result.rows) {
+        const errorText = result.error || '防撤回状态检查失败'
+        setAntiRevokeStatusMap((prev) => {
+          const next = { ...prev }
+          for (const sessionId of targetIds) {
+            next[sessionId] = {
+              ...(next[sessionId] || {}),
+              loading: false,
+              error: errorText
+            }
+          }
+          return next
+        })
+        showMessage(errorText, false)
+        return
+      }
+
+      const rowMap = new Map<string, { sessionId: string; success: boolean; installed?: boolean; error?: string }>()
+      for (const row of result.rows || []) {
+        const sessionId = String(row.sessionId || '').trim()
+        if (!sessionId) continue
+        rowMap.set(sessionId, row)
+      }
+      const mergedRows = targetIds.map((sessionId) => (
+        rowMap.get(sessionId) || { sessionId, success: false, error: '状态查询未返回结果' }
+      ))
+      const successCount = mergedRows.filter((row) => row.success).length
+      const failedCount = mergedRows.length - successCount
+      setAntiRevokeStatusMap((prev) => {
+        const next = { ...prev }
+        for (const row of mergedRows) {
+          const sessionId = String(row.sessionId || '').trim()
+          if (!sessionId) continue
+          next[sessionId] = {
+            installed: row.installed === true,
+            loading: false,
+            error: row.success ? undefined : (row.error || '状态查询失败')
+          }
+        }
+        return next
+      })
+      setAntiRevokeSummary({ action: 'refresh', success: successCount, failed: failedCount })
+      showMessage(`状态刷新完成：成功 ${successCount}，失败 ${failedCount}`, failedCount === 0)
+    } catch (e: any) {
+      showMessage(`防撤回状态刷新失败: ${e?.message || String(e)}`, false)
+    } finally {
+      setIsAntiRevokeRefreshing(false)
+    }
+  }
+
+  const handleInstallAntiRevokeTriggers = async () => {
+    if (isAntiRevokeRefreshing || isAntiRevokeInstalling || isAntiRevokeUninstalling) return
+    const sessionIds = normalizeSessionIds(Array.from(antiRevokeSelectedIds))
+    if (sessionIds.length === 0) {
+      showMessage('请先选择至少一个会话', false)
+      return
+    }
+    setAntiRevokeSummary(null)
+    setIsAntiRevokeInstalling(true)
+    try {
+      markAntiRevokeRowsLoading(sessionIds)
+      const result = await window.electronAPI.chat.installAntiRevokeTriggers(sessionIds)
+      if (!result.success || !result.rows) {
+        const errorText = result.error || '批量安装失败'
+        setAntiRevokeStatusMap((prev) => {
+          const next = { ...prev }
+          for (const sessionId of sessionIds) {
+            next[sessionId] = {
+              ...(next[sessionId] || {}),
+              loading: false,
+              error: errorText
+            }
+          }
+          return next
+        })
+        showMessage(errorText, false)
+        return
+      }
+
+      const rowMap = new Map<string, { sessionId: string; success: boolean; alreadyInstalled?: boolean; error?: string }>()
+      for (const row of result.rows || []) {
+        const sessionId = String(row.sessionId || '').trim()
+        if (!sessionId) continue
+        rowMap.set(sessionId, row)
+      }
+      const mergedRows = sessionIds.map((sessionId) => (
+        rowMap.get(sessionId) || { sessionId, success: false, error: '安装未返回结果' }
+      ))
+      const successCount = mergedRows.filter((row) => row.success).length
+      const failedCount = mergedRows.length - successCount
+      setAntiRevokeStatusMap((prev) => {
+        const next = { ...prev }
+        for (const row of mergedRows) {
+          const sessionId = String(row.sessionId || '').trim()
+          if (!sessionId) continue
+          next[sessionId] = {
+            installed: row.success ? true : next[sessionId]?.installed,
+            loading: false,
+            error: row.success ? undefined : (row.error || '安装失败')
+          }
+        }
+        return next
+      })
+      setAntiRevokeSummary({ action: 'install', success: successCount, failed: failedCount })
+      showMessage(`批量安装完成：成功 ${successCount}，失败 ${failedCount}`, failedCount === 0)
+    } catch (e: any) {
+      showMessage(`批量安装失败: ${e?.message || String(e)}`, false)
+    } finally {
+      setIsAntiRevokeInstalling(false)
+    }
+  }
+
+  const handleUninstallAntiRevokeTriggers = async () => {
+    if (isAntiRevokeRefreshing || isAntiRevokeInstalling || isAntiRevokeUninstalling) return
+    const sessionIds = normalizeSessionIds(Array.from(antiRevokeSelectedIds))
+    if (sessionIds.length === 0) {
+      showMessage('请先选择至少一个会话', false)
+      return
+    }
+    setAntiRevokeSummary(null)
+    setIsAntiRevokeUninstalling(true)
+    try {
+      markAntiRevokeRowsLoading(sessionIds)
+      const result = await window.electronAPI.chat.uninstallAntiRevokeTriggers(sessionIds)
+      if (!result.success || !result.rows) {
+        const errorText = result.error || '批量卸载失败'
+        setAntiRevokeStatusMap((prev) => {
+          const next = { ...prev }
+          for (const sessionId of sessionIds) {
+            next[sessionId] = {
+              ...(next[sessionId] || {}),
+              loading: false,
+              error: errorText
+            }
+          }
+          return next
+        })
+        showMessage(errorText, false)
+        return
+      }
+
+      const rowMap = new Map<string, { sessionId: string; success: boolean; error?: string }>()
+      for (const row of result.rows || []) {
+        const sessionId = String(row.sessionId || '').trim()
+        if (!sessionId) continue
+        rowMap.set(sessionId, row)
+      }
+      const mergedRows = sessionIds.map((sessionId) => (
+        rowMap.get(sessionId) || { sessionId, success: false, error: '卸载未返回结果' }
+      ))
+      const successCount = mergedRows.filter((row) => row.success).length
+      const failedCount = mergedRows.length - successCount
+      setAntiRevokeStatusMap((prev) => {
+        const next = { ...prev }
+        for (const row of mergedRows) {
+          const sessionId = String(row.sessionId || '').trim()
+          if (!sessionId) continue
+          next[sessionId] = {
+            installed: row.success ? false : next[sessionId]?.installed,
+            loading: false,
+            error: row.success ? undefined : (row.error || '卸载失败')
+          }
+        }
+        return next
+      })
+      setAntiRevokeSummary({ action: 'uninstall', success: successCount, failed: failedCount })
+      showMessage(`批量卸载完成：成功 ${successCount}，失败 ${failedCount}`, failedCount === 0)
+    } catch (e: any) {
+      showMessage(`批量卸载失败: ${e?.message || String(e)}`, false)
+    } finally {
+      setIsAntiRevokeUninstalling(false)
+    }
+  }
+
+  useEffect(() => {
+    if (activeTab !== 'antiRevoke') return
+    let canceled = false
+    ;(async () => {
+      try {
+        const sessionIds = await ensureAntiRevokeSessionsLoaded()
+        if (canceled) return
+        await handleRefreshAntiRevokeStatus(sessionIds)
+      } catch (e: any) {
+        if (!canceled) {
+          showMessage(`加载防撤回会话失败: ${e?.message || String(e)}`, false)
+        }
+      }
+    })()
+    return () => {
+      canceled = true
+    }
+  }, [activeTab])
+
   type WxidKeys = {
     decryptKey: string
     imageXorKey: number | null
@@ -1319,11 +1571,9 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
   )
 
   const renderNotificationTab = () => {
-    const { sessions } = useChatStore.getState()
-
     // 获取已过滤会话的信息
     const getSessionInfo = (username: string) => {
-      const session = sessions.find(s => s.username === username)
+      const session = chatSessions.find(s => s.username === username)
       return {
         displayName: session?.displayName || username,
         avatarUrl: session?.avatarUrl || ''
@@ -1348,7 +1598,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
     }
 
     // 过滤掉已在列表中的会话，并根据搜索关键字过滤
-    const availableSessions = sessions.filter(s => {
+    const availableSessions = chatSessions.filter(s => {
       if (notificationFilterList.includes(s.username)) return false
       if (filterSearchKeyword) {
         const keyword = filterSearchKeyword.toLowerCase()
@@ -1564,6 +1814,199 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
     )
   }
 
+  const renderAntiRevokeTab = () => {
+    const sortedSessions = [...chatSessions].sort((a, b) => (b.sortTimestamp || 0) - (a.sortTimestamp || 0))
+    const keyword = antiRevokeSearchKeyword.trim().toLowerCase()
+    const filteredSessions = sortedSessions.filter((session) => {
+      if (!keyword) return true
+      const displayName = String(session.displayName || '').toLowerCase()
+      const username = String(session.username || '').toLowerCase()
+      return displayName.includes(keyword) || username.includes(keyword)
+    })
+    const filteredSessionIds = filteredSessions.map((session) => session.username)
+    const selectedCount = antiRevokeSelectedIds.size
+    const selectedInFilteredCount = filteredSessionIds.filter((sessionId) => antiRevokeSelectedIds.has(sessionId)).length
+    const allFilteredSelected = filteredSessionIds.length > 0 && selectedInFilteredCount === filteredSessionIds.length
+    const busy = isAntiRevokeRefreshing || isAntiRevokeInstalling || isAntiRevokeUninstalling
+    const statusStats = filteredSessions.reduce(
+      (acc, session) => {
+        const rowState = antiRevokeStatusMap[session.username]
+        if (rowState?.error) acc.failed += 1
+        else if (rowState?.installed === true) acc.installed += 1
+        else if (rowState?.installed === false) acc.notInstalled += 1
+        return acc
+      },
+      { installed: 0, notInstalled: 0, failed: 0 }
+    )
+
+    const toggleSelected = (sessionId: string) => {
+      setAntiRevokeSelectedIds((prev) => {
+        const next = new Set(prev)
+        if (next.has(sessionId)) next.delete(sessionId)
+        else next.add(sessionId)
+        return next
+      })
+    }
+
+    const selectAllFiltered = () => {
+      if (filteredSessionIds.length === 0) return
+      setAntiRevokeSelectedIds((prev) => {
+        const next = new Set(prev)
+        for (const sessionId of filteredSessionIds) {
+          next.add(sessionId)
+        }
+        return next
+      })
+    }
+
+    const clearSelection = () => {
+      setAntiRevokeSelectedIds(new Set())
+    }
+
+    return (
+      <div className="tab-content anti-revoke-tab">
+        <div className="anti-revoke-hero">
+          <div className="anti-revoke-hero-main">
+            <h3>会话级防撤回触发器</h3>
+            <p>仅针对勾选会话执行批量安装或卸载，状态可随时刷新。</p>
+          </div>
+          <div className="anti-revoke-metrics">
+            <div className="anti-revoke-metric is-total">
+              <span className="label">筛选会话</span>
+              <span className="value">{filteredSessionIds.length}</span>
+            </div>
+            <div className="anti-revoke-metric is-installed">
+              <span className="label">已安装</span>
+              <span className="value">{statusStats.installed}</span>
+            </div>
+            <div className="anti-revoke-metric is-pending">
+              <span className="label">未安装</span>
+              <span className="value">{statusStats.notInstalled}</span>
+            </div>
+            <div className="anti-revoke-metric is-error">
+              <span className="label">异常</span>
+              <span className="value">{statusStats.failed}</span>
+            </div>
+          </div>
+        </div>
+
+        <div className="anti-revoke-control-card">
+          <div className="anti-revoke-toolbar">
+            <div className="filter-search-box anti-revoke-search">
+              <Search size={14} />
+              <input
+                type="text"
+                placeholder="搜索会话..."
+                value={antiRevokeSearchKeyword}
+                onChange={(e) => setAntiRevokeSearchKeyword(e.target.value)}
+              />
+            </div>
+            <div className="anti-revoke-toolbar-actions">
+              <div className="anti-revoke-btn-group">
+                <button className="btn btn-secondary btn-sm" onClick={() => void handleRefreshAntiRevokeStatus()} disabled={busy}>
+                  <RefreshCw size={14} /> {isAntiRevokeRefreshing ? '刷新中...' : '刷新状态'}
+                </button>
+              </div>
+              <div className="anti-revoke-btn-group">
+                <button className="btn btn-secondary btn-sm" onClick={selectAllFiltered} disabled={busy || filteredSessionIds.length === 0 || allFilteredSelected}>
+                  全选
+                </button>
+                <button className="btn btn-secondary btn-sm" onClick={clearSelection} disabled={busy || selectedCount === 0}>
+                  清空选择
+                </button>
+              </div>
+            </div>
+          </div>
+
+          <div className="anti-revoke-batch-actions">
+            <div className="anti-revoke-btn-group anti-revoke-batch-btns">
+              <button className="btn btn-primary btn-sm" onClick={() => void handleInstallAntiRevokeTriggers()} disabled={busy || selectedCount === 0}>
+                {isAntiRevokeInstalling ? '安装中...' : '批量安装'}
+              </button>
+              <button className="btn btn-secondary btn-sm" onClick={() => void handleUninstallAntiRevokeTriggers()} disabled={busy || selectedCount === 0}>
+                {isAntiRevokeUninstalling ? '卸载中...' : '批量卸载'}
+              </button>
+            </div>
+            <div className="anti-revoke-selected-count">
+              <span>已选 <strong>{selectedCount}</strong> 个会话</span>
+              <span>筛选命中 <strong>{selectedInFilteredCount}</strong> / {filteredSessionIds.length}</span>
+            </div>
+          </div>
+        </div>
+
+        {antiRevokeSummary && (
+          <div className={`anti-revoke-summary ${antiRevokeSummary.failed > 0 ? 'error' : 'success'}`}>
+            {antiRevokeSummary.action === 'refresh' ? '刷新' : antiRevokeSummary.action === 'install' ? '安装' : '卸载'}
+            完成：成功 {antiRevokeSummary.success}，失败 {antiRevokeSummary.failed}
+          </div>
+        )}
+
+        <div className="anti-revoke-list">
+          {filteredSessions.length === 0 ? (
+            <div className="anti-revoke-empty">{antiRevokeSearchKeyword ? '没有匹配的会话' : '暂无会话可配置'}</div>
+          ) : (
+            <>
+              <div className="anti-revoke-list-header">
+                <span>会话（{filteredSessions.length}）</span>
+                <span>状态</span>
+              </div>
+              {filteredSessions.map((session) => {
+                const rowState = antiRevokeStatusMap[session.username]
+                let statusClass = 'unknown'
+                let statusLabel = '未检查'
+                if (rowState?.loading) {
+                  statusClass = 'checking'
+                  statusLabel = '检查中'
+                } else if (rowState?.error) {
+                  statusClass = 'error'
+                  statusLabel = '失败'
+                } else if (rowState?.installed === true) {
+                  statusClass = 'installed'
+                  statusLabel = '已安装'
+                } else if (rowState?.installed === false) {
+                  statusClass = 'not-installed'
+                  statusLabel = '未安装'
+                }
+                return (
+                  <div key={session.username} className={`anti-revoke-row ${antiRevokeSelectedIds.has(session.username) ? 'selected' : ''}`}>
+                    <label className="anti-revoke-row-main">
+                      <span className="anti-revoke-check">
+                        <input
+                          type="checkbox"
+                          checked={antiRevokeSelectedIds.has(session.username)}
+                          onChange={() => toggleSelected(session.username)}
+                          disabled={busy}
+                        />
+                        <span className="check-indicator" aria-hidden="true">
+                          <Check size={12} />
+                        </span>
+                      </span>
+                      <Avatar
+                        src={session.avatarUrl}
+                        name={session.displayName || session.username}
+                        size={30}
+                      />
+                      <div className="anti-revoke-row-text">
+                        <span className="name">{session.displayName || session.username}</span>
+                      </div>
+                    </label>
+                    <div className="anti-revoke-row-status">
+                      <span className={`status-badge ${statusClass}`}>
+                        <i className="status-dot" aria-hidden="true" />
+                        {statusLabel}
+                      </span>
+                      {rowState?.error && <span className="status-error">{rowState.error}</span>}
+                    </div>
+                  </div>
+                )
+              })}
+            </>
+          )}
+        </div>
+      </div>
+    )
+  }
+
   const renderDatabaseTab = () => (
     <div className="tab-content">
       <div className="form-group">
@@ -2687,6 +3130,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
           <div className="settings-body">
             {activeTab === 'appearance' && renderAppearanceTab()}
             {activeTab === 'notification' && renderNotificationTab()}
+            {activeTab === 'antiRevoke' && renderAntiRevokeTab()}
             {activeTab === 'database' && renderDatabaseTab()}
             {activeTab === 'models' && renderModelsTab()}
             {activeTab === 'cache' && renderCacheTab()}

src/stores/chatStore.ts

@@ -1,6 +1,46 @@
 import { create } from 'zustand'
 import type { ChatSession, Message, Contact } from '../types/models'
 
+const messageAliasIndex = new Set<string>()
+
+function buildPrimaryMessageKey(message: Message): string {
+  if (message.messageKey) return String(message.messageKey)
+  return `fallback:${message.serverId || 0}:${message.createTime}:${message.sortSeq || 0}:${message.localId || 0}:${message.senderUsername || ''}:${message.localType || 0}`
+}
+
+function buildMessageAliasKeys(message: Message): string[] {
+  const keys = [buildPrimaryMessageKey(message)]
+  const localId = Math.max(0, Number(message.localId || 0))
+  const serverId = Math.max(0, Number(message.serverId || 0))
+  const createTime = Math.max(0, Number(message.createTime || 0))
+  const localType = Math.floor(Number(message.localType || 0))
+  const sender = String(message.senderUsername || '')
+  const isSend = Number(message.isSend ?? -1)
+
+  if (localId > 0) {
+    keys.push(`lid:${localId}`)
+  }
+  if (serverId > 0) {
+    keys.push(`sid:${serverId}`)
+  }
+  if (localType === 3) {
+    const imageIdentity = String(message.imageMd5 || message.imageDatName || '').trim()
+    if (imageIdentity) {
+      keys.push(`img:${createTime}:${sender}:${isSend}:${imageIdentity}`)
+    }
+  }
+
+  return keys
+}
+
+function rebuildMessageAliasIndex(messages: Message[]): void {
+  messageAliasIndex.clear()
+  for (const message of messages) {
+    const aliasKeys = buildMessageAliasKeys(message)
+    aliasKeys.forEach((key) => messageAliasIndex.add(key))
+  }
+}
+
 export interface ChatState {
   // 连接状态
   isConnected: boolean
@@ -69,59 +109,37 @@ export const useChatStore = create<ChatState>((set, get) => ({
   setSessions: (sessions) => set({ sessions, filteredSessions: sessions }),
   setFilteredSessions: (sessions) => set({ filteredSessions: sessions }),
 
-  setCurrentSession: (sessionId, options) => set((state) => ({
+  setCurrentSession: (sessionId, options) => set((state) => {
-    currentSessionId: sessionId,
+    const nextMessages = options?.preserveMessages ? state.messages : []
-    messages: options?.preserveMessages ? state.messages : [],
+    rebuildMessageAliasIndex(nextMessages)
-    hasMoreMessages: true,
+    return {
-    hasMoreLater: false
+      currentSessionId: sessionId,
-  })),
+      messages: nextMessages,
+      hasMoreMessages: true,
+      hasMoreLater: false
+    }
+  }),
 
   setLoadingSessions: (loading) => set({ isLoadingSessions: loading }),
 
-  setMessages: (messages) => set({ messages }),
+  setMessages: (messages) => set(() => {
+    rebuildMessageAliasIndex(messages || [])
+    return { messages }
+  }),
 
   appendMessages: (newMessages, prepend = false) => set((state) => {
-    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 existingAliases = new Set<string>()
+    if (messageAliasIndex.size === 0 && currentMessages.length > 0) {
-    currentMessages.forEach((msg) => {
+      rebuildMessageAliasIndex(currentMessages)
-      buildAliasKeys(msg).forEach((key) => existingAliases.add(key))
+    }
-    })
 
     const filtered: Message[] = []
     newMessages.forEach((msg) => {
-      const aliasKeys = buildAliasKeys(msg)
+      const aliasKeys = buildMessageAliasKeys(msg)
-      const exists = aliasKeys.some((key) => existingAliases.has(key))
+      const exists = aliasKeys.some((key) => messageAliasIndex.has(key))
       if (exists) return
       filtered.push(msg)
-      aliasKeys.forEach((key) => existingAliases.add(key))
+      aliasKeys.forEach((key) => messageAliasIndex.add(key))
     })
 
     if (filtered.length === 0) return state
@@ -150,20 +168,23 @@ export const useChatStore = create<ChatState>((set, get) => ({
 
   setSearchKeyword: (keyword) => set({ searchKeyword: keyword }),
 
-  reset: () => set({
+  reset: () => set(() => {
-    isConnected: false,
+    messageAliasIndex.clear()
-    isConnecting: false,
+    return {
-    connectionError: null,
+      isConnected: false,
-    sessions: [],
+      isConnecting: false,
-    filteredSessions: [],
+      connectionError: null,
-    currentSessionId: null,
+      sessions: [],
-    isLoadingSessions: false,
+      filteredSessions: [],
-    messages: [],
+      currentSessionId: null,
-    isLoadingMessages: false,
+      isLoadingSessions: false,
-    isLoadingMore: false,
+      messages: [],
-    hasMoreMessages: true,
+      isLoadingMessages: false,
-    hasMoreLater: false,
+      isLoadingMore: false,
-    contacts: new Map(),
+      hasMoreMessages: true,
-    searchKeyword: ''
+      hasMoreLater: false,
+      contacts: new Map(),
+      searchKeyword: ''
+    }
   })
 }))

src/types/electron.d.ts

@@ -226,6 +226,21 @@ export interface ElectronAPI {
     getContactAvatar: (username: string) => Promise<{ avatarUrl?: string; displayName?: string } | null>
     updateMessage: (sessionId: string, localId: number, createTime: number, newContent: string) => Promise<{ success: boolean; error?: string }>
     deleteMessage: (sessionId: string, localId: number, createTime: number, dbPathHint?: string) => Promise<{ success: boolean; error?: string }>
+    checkAntiRevokeTriggers: (sessionIds: string[]) => Promise<{
+      success: boolean
+      rows?: Array<{ sessionId: string; success: boolean; installed?: boolean; error?: string }>
+      error?: string
+    }>
+    installAntiRevokeTriggers: (sessionIds: string[]) => Promise<{
+      success: boolean
+      rows?: Array<{ sessionId: string; success: boolean; alreadyInstalled?: boolean; error?: string }>
+      error?: string
+    }>
+    uninstallAntiRevokeTriggers: (sessionIds: string[]) => Promise<{
+      success: boolean
+      rows?: Array<{ sessionId: string; success: boolean; error?: string }>
+      error?: string
+    }>
     resolveTransferDisplayNames: (chatroomId: string, payerUsername: string, receiverUsername: string) => Promise<{ payerName: string; receiverName: string }>
     getContacts: (options?: { lite?: boolean }) => Promise<{
       success: boolean