perf: organize oauth2_provider urls, add .well-known API

apps/authentication/backends/oauth2_provider/utils.py

@@ -0,0 +1,17 @@
+from django.conf import settings
+from oauth2_provider.models import get_application_model
+
+def get_or_create_jumpserver_client_application():
+    """Auto get or create OAuth2 JumpServer Client application."""
+    Application = get_application_model()
+    
+    application, created = Application.objects.get_or_create(
+        name='JumpServer Client',
+        defaults={
+            'client_type': Application.CLIENT_PUBLIC,
+            'authorization_grant_type': Application.GRANT_AUTHORIZATION_CODE,
+            'redirect_uris': settings.OAUTH2_PROVIDER_CLIENT_REDIRECT_URI,
+            'skip_authorization': True,
+        }
+    )
+    return application