small change

server.js

@@ -8,6 +8,15 @@ const app = express();
 const server = http.createServer(app);
 const io = new Server(server);
 
+// Serve models with correct MIME type
+app.use('/models', express.static(path.join(__dirname, 'models'), {
+  setHeaders: (res, filePath) => {
+    if (filePath.endsWith('.glb')) {
+      res.setHeader('Content-Type', 'model/gltf-binary');
+    }
+  }
+}));
+
 // Serve your existing static files (HTML, JS, CSS)
 app.use(express.static(path.join(__dirname, 'dist')));