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.

config/settings/database.py

@@ -7,24 +7,22 @@ import environ
 env = environ.Env()
 
 # Database configuration
-db_config = env.db()
+db_config = env.db("DATABASE_URL")
+
+
 # Force PostGIS backend for spatial data support
-db_config['ENGINE'] = 'django.contrib.gis.db.backends.postgis'
+db_config["ENGINE"] = "django.contrib.gis.db.backends.postgis"
 
 DATABASES = {
-    'default': db_config,
+    "default": db_config,
 }
 
 # GeoDjango Settings - Environment specific
-GDAL_LIBRARY_PATH = env('GDAL_LIBRARY_PATH', default=None)
-GEOS_LIBRARY_PATH = env('GEOS_LIBRARY_PATH', default=None)
+GDAL_LIBRARY_PATH = env("GDAL_LIBRARY_PATH", default=None)
+GEOS_LIBRARY_PATH = env("GEOS_LIBRARY_PATH", default=None)
 
 # Cache settings
-CACHES = {
-    'default': env.cache('CACHE_URL', default='locmemcache://')
-}
+CACHES = {"default": env.cache("CACHE_URL", default="locmemcache://")}
 
-CACHE_MIDDLEWARE_SECONDS = env.int(
-    'CACHE_MIDDLEWARE_SECONDS', default=300)  # 5 minutes
-CACHE_MIDDLEWARE_KEY_PREFIX = env(
-    'CACHE_MIDDLEWARE_KEY_PREFIX', default='thrillwiki')
+CACHE_MIDDLEWARE_SECONDS = env.int("CACHE_MIDDLEWARE_SECONDS", default=300)  # 5 minutes
+CACHE_MIDDLEWARE_KEY_PREFIX = env("CACHE_MIDDLEWARE_KEY_PREFIX", default="thrillwiki")