feat: 添加消息历史持久化和可视化查看功能

- 新增 messageStore.js 消息存储模块，支持自动保存所有收发消息
- 修改 main.js，在消息转发时自动记录到本地存储
- 修改 preload.js，暴露消息管理 IPC API
- 修改 App.js，添加消息历史查看界面
  - 统计信息面板（总数/接收/发送/会话数）
  - 会话列表和消息详情
  - 搜索、过滤、分页功能
  - 导出 JSON 和清空历史
- 新增完整文档（MESSAGE_HISTORY.md 等）
- 新增测试脚本 test-message-history.js

版本：v1.0.1

electron/main.js

@@ -8,6 +8,7 @@ const { v4: uuidv4 } = require('uuid');
 const { WSClient } = require('@wecom/aibot-node-sdk');
 const WebSocket = require('ws');
 const crypto = require('crypto');
+const messageStore = require('./messageStore');
 
 // 初始化配置存储
 const store = new Store({
@@ -221,6 +222,24 @@ class WeComConnection {
     console.log('[OpenClaw] Sending via chat.send:', sessionKey);
     openclawConnection.send(JSON.stringify(chatSendMessage));
     console.log(`[Forward] WeCom -> OpenClaw: ${messageId}`);
+
+    // 记录消息到存储
+    messageStore.saveMessage({
+      direction: 'inbound',
+      source: 'wecom',
+      sessionId: sessionKey,
+      chatId: chatId,
+      senderId: body.from?.userid || '',
+      senderName: body.from?.name || body.from?.userid || '',
+      messageType: body.image ? 'image' : body.file ? 'file' : body.voice ? 'voice' : 'text',
+      content: text,
+      attachments: attachments,
+      metadata: {
+        wecomMsgId: messageId,
+        chatType: chatType,
+        reqId: reqId
+      }
+    });
   }
 
   scheduleReconnect() {
@@ -467,6 +486,24 @@ class OpenClawConnection {
     try {
       await wecomConn.sendMessage(chatId, text, finish, streamId);
       console.log(`[Forward] OpenClaw -> WeCom: ${chatId}`);
+
+      // 记录消息到存储
+      const sessionKey = `${botId}:${chatId}`;
+      messageStore.saveMessage({
+        direction: 'outbound',
+        source: 'openclaw',
+        sessionId: sessionKey,
+        chatId: chatId,
+        senderId: 'openclaw',
+        senderName: 'OpenClaw AI',
+        messageType: 'text',
+        content: text,
+        metadata: {
+          streamId: streamId,
+          finish: finish,
+          botId: botId
+        }
+      });
     } catch (error) {
       console.error('[Forward] Error:', error);
     }
@@ -646,6 +683,44 @@ function setupIpcHandlers() {
       return { success: false, message: `发送失败：${error.message}` };
     }
   });
+
+  // ============ 消息存储相关 IPC 处理器 ============
+  
+  // 获取消息列表
+  ipcMain.handle('get-messages', (event, options = {}) => {
+    return messageStore.getMessages(options);
+  });
+
+  // 获取会话列表
+  ipcMain.handle('get-sessions', () => {
+    return messageStore.getSessions();
+  });
+
+  // 搜索消息
+  ipcMain.handle('search-messages', (event, query, options = {}) => {
+    return messageStore.searchMessages(query, options);
+  });
+
+  // 获取统计数据
+  ipcMain.handle('get-message-stats', () => {
+    return messageStore.getStats();
+  });
+
+  // 标记消息为已读
+  ipcMain.handle('mark-messages-read', (event, messageIds) => {
+    return messageStore.markAsRead(messageIds);
+  });
+
+  // 导出消息
+  ipcMain.handle('export-messages', (event, options = {}) => {
+    return messageStore.exportMessages(options);
+  });
+
+  // 清空消息
+  ipcMain.handle('clear-messages', (event, options = {}) => {
+    messageStore.clear(options);
+    return { success: true };
+  });
 }
 
 app.whenReady().then(() => {