feat: shift 视图改为完整 CRUD 以支持班次管理页

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/mtm/views.py

@@ -102,16 +102,16 @@ class MaterialViewSet(CustomModelViewSet):
         data = [list(getter(item)) for item in odata]
         return Response({'path': export_excel(field_data, data, '物料清单')})
 
-class ShiftViewSet(ListModelMixin, CustomGenericViewSet):
+class ShiftViewSet(CustomModelViewSet):
     """
     list:班次
 
     班次
     """
-    perms_map = {'get': '*'}
     queryset = Shift.objects.all()
     serializer_class = ShiftSerializer
-    search_fields = ['name']
+    search_fields = ['name', 'rule']
+    filterset_fields = ['rule']
     ordering = ['rule', 'sort', 'id']