Добавил превьюшки дхф и настройки сервера

shiftflow/urls.py

@@ -8,6 +8,7 @@ from .views import (
     DealUpsertView,
     IndexView,
     ItemUpdateView,
+    MaintenanceView,
     MaterialCategoryUpsertView,
     MaterialDetailView,
     MaterialUpsertView,
@@ -32,6 +33,7 @@ urlpatterns = [
     path('planning/task/<int:pk>/items/', TaskItemsView.as_view(), name='task_items'),
     path('customers/', CustomersView.as_view(), name='customers'),
     path('customers/<int:pk>/', CustomerDealsView.as_view(), name='customer_deals'),
+    path('maintenance/', MaintenanceView.as_view(), name='maintenance'),
     path('planning/add/', PlanningAddView.as_view(), name='planning_add'),
     path('planning/task/add/', ProductionTaskCreateView.as_view(), name='task_add'),
     path('planning/deal/<int:pk>/json/', DealDetailView.as_view(), name='deal_json'),