feat: 命令及录像存储可连接性定时检查 (#10594)

Co-authored-by: feng <1304903146@qq.com>

apps/notifications/api/notifications.py

@@ -1,12 +1,12 @@
 from rest_framework.mixins import ListModelMixin, UpdateModelMixin, RetrieveModelMixin
-from rest_framework.views import APIView
 from rest_framework.response import Response
+from rest_framework.views import APIView
 
 from common.api import JMSGenericViewSet
 from common.permissions import IsValidUser
-from notifications.notifications import system_msgs
-from notifications.models import SystemMsgSubscription, UserMsgSubscription
 from notifications.backends import BACKEND
+from notifications.models import SystemMsgSubscription, UserMsgSubscription
+from notifications.notifications import system_msgs
 from notifications.serializers import (
     SystemMsgSubscriptionSerializer, SystemMsgSubscriptionByCategorySerializer,
     UserMsgSubscriptionSerializer,
@@ -32,9 +32,9 @@ class BackendListView(APIView):
         return Response(data=data)
 
 
-class SystemMsgSubscriptionViewSet(ListModelMixin,
-                                   UpdateModelMixin,
-                                   JMSGenericViewSet):
+class SystemMsgSubscriptionViewSet(
+    ListModelMixin, UpdateModelMixin, JMSGenericViewSet
+):
     lookup_field = 'message_type'
     queryset = SystemMsgSubscription.objects.all()
     serializer_classes = {