ci: add PR quality and coverage gates

backend/config/asgi.py

@@ -7,13 +7,11 @@ from channels.routing import ProtocolTypeRouter, URLRouter
 from django.core.asgi import get_asgi_application
 from django.urls import path
 
-
 django_asgi_application = get_asgi_application()
 
 from common.consumers import HealthConsumer
 from contest.routing import websocket_urlpatterns
 
-
 application = ProtocolTypeRouter(
     {
         "http": django_asgi_application,

backend/config/settings.py

@@ -4,7 +4,6 @@ from pathlib import Path
 import dj_database_url
 from django.core.exceptions import ImproperlyConfigured
 
-
 BASE_DIR = Path(__file__).resolve().parent.parent
 PROJECT_ROOT = BASE_DIR.parent
 

backend/config/urls.py

@@ -3,7 +3,6 @@ from django.urls import include, path
 
 from common.views import health, home
 
-
 admin.site.site_header = "葫芦数学运营后台"
 admin.site.site_title = "葫芦数学"
 admin.site.index_title = "内容与运营"