diff --git a/src/main/java/com/wecom/robot/controller/WecomCallbackController.java b/src/main/java/com/wecom/robot/controller/WecomCallbackController.java
index 5d18473..5bb3132 100644
--- a/src/main/java/com/wecom/robot/controller/WecomCallbackController.java
+++ b/src/main/java/com/wecom/robot/controller/WecomCallbackController.java
@@ -1,8 +1,11 @@
 package com.wecom.robot.controller;
 
+import com.wecom.robot.adapter.ChannelAdapter;
+import com.wecom.robot.adapter.MessageSyncCapable;
 import com.wecom.robot.config.WecomConfig;
-import com.wecom.robot.dto.WxCallbackMessage;
+import com.wecom.robot.dto.*;
 import com.wecom.robot.service.MessageProcessService;
+import com.wecom.robot.service.MessageRouterService;
 import com.wecom.robot.util.WXBizMsgCrypt;
 import com.wecom.robot.util.XmlUtil;
 import lombok.RequiredArgsConstructor;
@@ -11,14 +14,24 @@ import org.springframework.web.bind.annotation.*;
 
 import java.util.Map;
 
+/**
+ * 企业微信回调控制器
+ * <p>
+ * 负责验签/解密/解析，构建 InboundMessage 传递给 MessageRouterService。
+ * [AC-MCA-08] 入口层控制器
+ */
 @Slf4j
 @RestController
 @RequestMapping("/wecom")
 @RequiredArgsConstructor
 public class WecomCallbackController {
 
+    private static final String CHANNEL_TYPE = "wechat";
+
     private final WecomConfig wecomConfig;
     private final MessageProcessService messageProcessService;
+    private final MessageRouterService messageRouterService;
+    private final Map<String, ChannelAdapter> channelAdapters;
 
     @GetMapping("/callback")
     public String verifyUrl(
diff --git a/src/main/java/com/wecom/robot/service/MessageProcessService.java b/src/main/java/com/wecom/robot/service/MessageProcessService.java
index c23f121..76c6158 100644
--- a/src/main/java/com/wecom/robot/service/MessageProcessService.java
+++ b/src/main/java/com/wecom/robot/service/MessageProcessService.java
@@ -1,6 +1,8 @@
 package com.wecom.robot.service;
 
 import com.alibaba.fastjson.JSON;
+import com.wecom.robot.adapter.ChannelAdapter;
+import com.wecom.robot.adapter.MessageSyncCapable;
 import com.wecom.robot.dto.InboundMessage;
 import com.wecom.robot.dto.ServiceStateResponse;
 import com.wecom.robot.dto.SyncMsgResponse;
@@ -12,28 +14,29 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+import java.util.Map;
+
 /**
- * 消息处理服务 - 微信渠道消息处理入口
- * 
- * <p>职责：
- * <ul>
- *   <li>处理微信回调事件（消息同步、会话事件等）</li>
- *   <li>构建 InboundMessage 并委托给 MessageRouterService</li>
- * </ul>
- * 
- * <p>关联 AC: [AC-MCA-08] 统一消息路由
- * 
- * @see MessageRouterService
- * @see InboundMessage
+ * 消息处理服务
+ * <p>
+ * 负责从微信拉取消息并转换为 InboundMessage 传递给 MessageRouterService。
+ * [AC-MCA-08] 消息处理服务
  */
 @Slf4j
 @Service
 @RequiredArgsConstructor
 public class MessageProcessService {
 
+    private static final String CHANNEL_TYPE = "wechat";
+
     private final SessionManagerService sessionManagerService;
+    private final AiService aiService;
+    private final TransferService transferService;
     private final WecomApiService wecomApiService;
+    private final WebSocketService webSocketService;
     private final MessageRouterService messageRouterService;
+    private final Map<String, ChannelAdapter> channelAdapters;
 
     @Async
     public void processKfMessageEvent(WxCallbackMessage event) {