feat: complete monorepo structure with frontend and shared resources

- Add complete backend/ directory with full Django application
- Add frontend/ directory with Vite + TypeScript setup ready for Next.js
- Add comprehensive shared/ directory with:
  - Complete documentation and memory-bank archives
  - Media files and avatars (letters, park/ride images)
  - Deployment scripts and automation tools
  - Shared types and utilities
- Add architecture/ directory with migration guides
- Configure pnpm workspace for monorepo development
- Update .gitignore to exclude .django_tailwind_cli/ build artifacts
- Preserve all historical documentation in shared/docs/memory-bank/
- Set up proper structure for full-stack development with shared resources

backend/manage.py

@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    # Auto-detect environment based on command line arguments and environment variables
+    settings_module = detect_settings_module()
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", settings_module)
+
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        print(
+            "Error: Couldn't import Django. Make sure Django is installed and "
+            "available on your PYTHONPATH environment variable. "
+            "Did you forget to activate a virtual environment?"
+        )
+        print("\nTo set up your development environment, try:")
+        print("  python manage.py setup_dev")
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+
+    execute_from_command_line(sys.argv)
+
+
+def detect_settings_module():
+    """Auto-detect the appropriate settings module based on context."""
+    # Check if DJANGO_SETTINGS_MODULE is already set
+    if "DJANGO_SETTINGS_MODULE" in os.environ:
+        return os.environ["DJANGO_SETTINGS_MODULE"]
+
+    # Test environment detection
+    if "test" in sys.argv:
+        if "accounts" in sys.argv:
+            return "config.django.test_accounts"
+        return "config.django.test"
+
+    # Check for production indicators
+    production_indicators = [
+        "DYNO",  # Heroku
+        "AWS_EXECUTION_ENV",  # AWS Lambda
+        "KUBERNETES_SERVICE_HOST",  # Kubernetes
+        "DOCKER_CONTAINER",  # Docker
+    ]
+
+    if any(indicator in os.environ for indicator in production_indicators):
+        return "config.django.production"
+
+    # Check DEBUG environment variable
+    debug = os.environ.get("DEBUG", "").lower()
+    if debug in ("false", "0", "no"):
+        return "config.django.production"
+
+    # Default to local development
+    return "config.django.local"
+
+
+if __name__ == "__main__":
+    main()