Configure Docker to use Gunicorn instead of Flask development server for production deployment. Updated SocketIO configuration for gevent compatibility.

run.py

@@ -15,8 +15,11 @@ if __name__ == '__main__':
     debug_mode = config_name == 'development'
     port = int(os.getenv('PORT', 5000))  # Use PORT env var or default to 5000
     
-    # For production deployment, allow unsafe werkzeug or use a proper WSGI server
+    # For production deployment with Gunicorn, SocketIO will be handled by Gunicorn
+    # For development, we use SocketIO's built-in server
     if config_name == 'production':
+        # In production, Gunicorn will handle the server
+        # This is just a fallback
         socketio.run(app, debug=False, host='0.0.0.0', port=port, allow_unsafe_werkzeug=True)
     else:
         socketio.run(app, debug=debug_mode, host='0.0.0.0', port=port)