Fix: Wealth Distribution Histogram behind Nginx proxy

Production Environment Fixes:
- Enhanced SocketIO configuration for proxy compatibility
- Added fallback polling mechanism when WebSocket fails
- Fixed environment configuration (FLASK_ENV vs FLASK_CONFIG)
- Added production-friendly debug logging for distribution chart
- Improved connection status monitoring and error handling

Proxy-Specific Improvements:
- Enhanced CORS and transport settings for SocketIO
- Fallback to HTTP polling when WebSocket connections fail
- Better error handling and retry mechanisms
- Debug logging that works in production mode

This should resolve the wealth distribution histogram issue
when running behind Nginx proxy in Docker containers.

run.py

@@ -7,14 +7,15 @@ Demonstrates how capitalism "eats the world" using Markov chains.
 import os
 from app import create_app, socketio
 
-config_name = os.getenv('FLASK_CONFIG', 'development')
+# Use FLASK_ENV if set, otherwise default to development
+config_name = os.getenv('FLASK_ENV', 'development')
 app = create_app(config_name)
 
 if __name__ == '__main__':
-    debug_mode = os.getenv('FLASK_ENV', 'development') == 'development'
+    debug_mode = config_name == 'development'
     
     # For production deployment, allow unsafe werkzeug or use a proper WSGI server
-    if os.getenv('FLASK_ENV') == 'production':
+    if config_name == 'production':
         socketio.run(app, debug=False, host='0.0.0.0', port=5000, allow_unsafe_werkzeug=True)
     else:
         socketio.run(app, debug=debug_mode, host='0.0.0.0', port=5000)