Refactor test utilities and enhance ASGI settings

- Cleaned up and standardized assertions in ApiTestMixin for API response validation.
- Updated ASGI settings to use os.environ for setting the DJANGO_SETTINGS_MODULE.
- Removed unused imports and improved formatting in settings.py.
- Refactored URL patterns in urls.py for better readability and organization.
- Enhanced view functions in views.py for consistency and clarity.
- Added .flake8 configuration for linting and style enforcement.
- Introduced type stubs for django-environ to improve type checking with Pylance.

moderation/urls.py

@@ -3,30 +3,56 @@ from django.shortcuts import redirect
 from django.urls import reverse_lazy
 from . import views
 
-app_name = 'moderation'
+app_name = "moderation"
+
 
 def redirect_to_dashboard(request):
-    return redirect(reverse_lazy('moderation:dashboard'))
+    return redirect(reverse_lazy("moderation:dashboard"))
+
 
 urlpatterns = [
     # Root URL redirects to dashboard
-    path('', redirect_to_dashboard),
-    
+    path("", redirect_to_dashboard),
     # Dashboard and Submissions
-    path('dashboard/', views.DashboardView.as_view(), name='dashboard'),
-    path('submissions/', views.submission_list, name='submission_list'),
-    
+    path("dashboard/", views.DashboardView.as_view(), name="dashboard"),
+    path("submissions/", views.submission_list, name="submission_list"),
     # Search endpoints
-    path('search/parks/', views.search_parks, name='search_parks'),
-    path('search/ride-models/', views.search_ride_models, name='search_ride_models'),
-    
+    path("search/parks/", views.search_parks, name="search_parks"),
+    path(
+        "search/ride-models/",
+        views.search_ride_models,
+        name="search_ride_models",
+    ),
     # Submission Actions
-    path('submissions/<int:submission_id>/edit/', views.edit_submission, name='edit_submission'),
-    path('submissions/<int:submission_id>/approve/', views.approve_submission, name='approve_submission'),
-    path('submissions/<int:submission_id>/reject/', views.reject_submission, name='reject_submission'),
-    path('submissions/<int:submission_id>/escalate/', views.escalate_submission, name='escalate_submission'),
-    
+    path(
+        "submissions/<int:submission_id>/edit/",
+        views.edit_submission,
+        name="edit_submission",
+    ),
+    path(
+        "submissions/<int:submission_id>/approve/",
+        views.approve_submission,
+        name="approve_submission",
+    ),
+    path(
+        "submissions/<int:submission_id>/reject/",
+        views.reject_submission,
+        name="reject_submission",
+    ),
+    path(
+        "submissions/<int:submission_id>/escalate/",
+        views.escalate_submission,
+        name="escalate_submission",
+    ),
     # Photo Submissions
-    path('photos/<int:submission_id>/approve/', views.approve_photo, name='approve_photo'),
-    path('photos/<int:submission_id>/reject/', views.reject_photo, name='reject_photo'),
+    path(
+        "photos/<int:submission_id>/approve/",
+        views.approve_photo,
+        name="approve_photo",
+    ),
+    path(
+        "photos/<int:submission_id>/reject/",
+        views.reject_photo,
+        name="reject_photo",
+    ),
 ]