Update server.js

server.js

@@ -1,6 +1,7 @@
 const colyseus = require("colyseus");
 const http = require("http");
 const express = require("express"); // optional
+const monitor = require("@colyseus/monitor").monitor;
 
 // Initialize the Express app (optional)
 const app = express();
@@ -40,6 +41,7 @@ gameServer.define("my_room", MyRoom);
 
 // Serve static files (optional)
 app.use(express.static("public"));
+app.use("/colyseus", monitor());
 
 // Start the server
 const port = process.env.PORT || 7860;