feat: major project restructure - move Django to backend dir and fix critical imports

- Restructure project: moved Django backend to backend/ directory
- Add frontend/ directory for future Next.js application
- Add shared/ directory for common resources
- Fix critical Django import errors:
  - Add missing sys.path modification for apps directory
  - Fix undefined CATEGORY_CHOICES imports in rides module
  - Fix media migration undefined references
  - Remove unused imports and f-strings without placeholders
- Install missing django-environ dependency
- Django server now runs without ModuleNotFoundError
- Update .gitignore and README for new structure
- Add pnpm workspace configuration for monorepo setup

tests/e2e/pytest.ini

@@ -1,28 +0,0 @@
-[pytest]
-# Base URL for tests
-base_url = http://localhost:8000
-
-# Test file patterns
-python_files = test_*.py
-python_classes = Test*
-python_functions = test_*
-
-# Playwright specific settings
-addopts = --headed --browser chromium
-
-# Markers
-markers =
-    auth: authentication related tests
-    parks: theme park related tests
-    rides: ride related tests
-    reviews: review related tests
-    profiles: user profile related tests
-
-# Test timeout
-timeout = 30
-
-# Logging settings
-log_cli = true
-log_cli_level = INFO
-log_cli_format = %(asctime)s [%(levelname)8s] %(message)s (%(filename)s:%(lineno)s)
-log_cli_date_format = %Y-%m-%d %H:%M:%S