如果是AI对话，1对1 去除@

plugins/dify/main.py

@@ -124,7 +124,7 @@ class DifyPlugin(MessagePluginInterface):
         if roomid and gbm.get_group_permission(roomid, Feature.AI_CAPABILITY) == PermissionStatus.DISABLED:
             return False, "没有权限"
 
-        self.message_util.send_text_msg("⏳AI 正在加油，请稍候… 😊", (roomid if roomid else sender), sender)
+        self.message_util.send_text_msg("⏳AI 正在加油，请稍候… 😊", (roomid if roomid else sender), sender if roomid else "")
         # 获取查询内容
         query = parts[1].strip()