优化代码，删除无效代码

plugins/group_virtual/main.py

@@ -1,12 +1,12 @@
 from typing import Dict, Any, List, Optional, Tuple
 
-from message_util import MessageUtil
 from plugin_common.message_plugin_interface import MessagePluginInterface
 from plugin_common.plugin_interface import PluginStatus
 from utils.decorator.plugin_decorators import plugin_stats_decorator
 from utils.wechat.contact_manager import ContactManager
 from db.connection import DBConnectionManager
 from db.group_virtual_redis import GroupVirtualRedisDB
+from wechat_ipad import WechatAPIClient
 from wechat_ipad.models.message import WxMessage
 
 
@@ -42,6 +42,7 @@ class GroupVirtualPlugin(MessagePluginInterface):
         self.data = None
         self.message_cache = set()  # 用于防止消息循环转发
         self.group_virtual_redis = None
+        self.bot: WechatAPIClient = None
 
     def initialize(self, context: Dict[str, Any]) -> bool:
         """初始化插件"""
@@ -49,7 +50,6 @@ class GroupVirtualPlugin(MessagePluginInterface):
 
         # 保存上下文对象
         self.event_system = context.get("event_system")
-        self.message_util: MessageUtil = context.get("message_util")
 
         # 初始化配置
         self.enable = self._config.get("GroupVirtual", {}).get("enable", True)
@@ -96,6 +96,8 @@ class GroupVirtualPlugin(MessagePluginInterface):
         roomid = message.get("roomid", "")
         sender = message.get("sender", "")
         full_wx_msg: WxMessage = message.get("full_wx_msg")
+
+        self.bot: WechatAPIClient = message.get("bot")
         # 检查是否是机器人自己发送的消息
         if full_wx_msg.from_self():
             return False, "不转发自己的消息"
@@ -154,7 +156,7 @@ class GroupVirtualPlugin(MessagePluginInterface):
             # 转发到其他群
             for group in chat_group["groups"]:
                 if group["id"] != roomid:  # 不转发回源群
-                    self.message_util.send_text(forward_content, group["id"])
+                    self.bot.send_text_message(group["id"], forward_content)
 
         # 图片消息 暂时不支持。
         # elif msg_type == 3: