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.

rides/models/__init__.py

@@ -1,4 +1,32 @@
-from .company import *
-from .rides import *
-from .reviews import *
-from .location import *
+"""
+Rides app models with clean import interface.
+
+This module provides a clean import interface for all rides-related models,
+enabling imports like: from rides.models import Ride, Manufacturer
+
+The Company model is aliased as Manufacturer to clarify its role as ride manufacturers,
+while maintaining backward compatibility through the Company alias.
+"""
+
+from .rides import Ride, RideModel, RollerCoasterStats, CATEGORY_CHOICES
+from .location import RideLocation
+from .reviews import RideReview
+from .company import Company
+
+# Alias Company as Manufacturer for clarity
+Manufacturer = Company
+
+__all__ = [
+    # Primary models
+    "Ride",
+    "RideModel",
+    "RollerCoasterStats",
+    "RideLocation",
+    "RideReview",
+    # Shared constants
+    "CATEGORY_CHOICES",
+    # Company models with clear naming
+    "Manufacturer",
+    # Backward compatibility
+    "Company",  # Alias to Manufacturer
+]