Production deployment fixes and enhancements

- Added environment variable loading with python-dotenv
- Fixed Docker session permissions by using /tmp directory
- Updated .dockerignore to include .env file properly
- Enhanced docker-compose.yml with env_file directive
- Fixed Gunicorn configuration for Docker compatibility
- Updated README.md with comprehensive deployment docs
- Cleaned up debug logging from API routes
- Added DOMAIN_SETUP.md for reverse proxy guidance
- All production issues resolved and tested working
- Application now accessible at qr.moto-adv.com

main.py

@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
-"""        print("🚀 QR Code Manager - Production Mode")
-        print("ℹ️  This should be run with Gunicorn in production!")
-        print("🔧 Use: gunicorn -c gunicorn.conf.py main:app") Code Manager - Main Application Entry Point
+"""
+QR Code Manager - Main Application Entry Point
 
 A modern Flask web application for generating and managing QR codes with authentication.
 Features include:
@@ -14,8 +13,12 @@ Features include:
 """
 
 import os
+from dotenv import load_dotenv
 from app import create_app
 
+# Load environment variables from .env file
+load_dotenv()
+
 # Create Flask application
 app = create_app()