fix(backend): 修改循环导入的问题 #16093

# Reviewed, transaction id: 73205

Author: WuFantaotao

dbm-ui/backend/components/cmsi/client.py

@@ -11,7 +11,6 @@
 
 from django.utils.translation import gettext_lazy as _
 
-from ...core.notify.constants import MsgType
 from ..base import BaseApi
 from ..domains import CMSI_APIGW_DOMAIN
 
@@ -21,12 +20,16 @@ class _CmsiApi(BaseApi):
     BASE = CMSI_APIGW_DOMAIN
 
     # 消息类型映射定义
-    MSG_TYPE_MAP = {
-        MsgType.VOICE.value: "send_voice",
-        MsgType.SMS.value: "send_sms",
-        MsgType.WEIXIN.value: "send_weixin",
-        MsgType.MAIL.value: "send_mail",
-    }
+    @property
+    def MSG_TYPE_MAP(self):
+        from ...core.notify.constants import MsgType
+
+        return {
+            MsgType.VOICE.value: "send_voice",
+            MsgType.SMS.value: "send_sms",
+            MsgType.WEIXIN.value: "send_weixin",
+            MsgType.MAIL.value: "send_mail",
+        }
 
     def __init__(self):
         self.get_msg_type = self.generate_data_api(