add choice to enable store game state into .env file

main.py

@@ -28,4 +28,8 @@ if __name__ == "__main__":
         port=int(os.environ.get("PORT", "8000")),
         debug=bool(os.environ.get("debug", False)),
     )
+
+    if os.environ.get("store_game", None):
+        server.enable_store_game_state()
+
     server.run()