fix ts errors

Author: maxwellward

backend/.gitignore

@@ -1,4 +1,5 @@
 node_modules
 .env
 cert.pem
-key.pem
+key.pem
+dist

backend/app.ts

@@ -50,10 +50,10 @@ router.ws('/realtime', async (req, res) => {
 	const ws = await res.accept();
 	console.log('Websocket Connection Established 🌐');
 
-	let roomId;
+	let roomId: string;
 
 	ws.addEventListener('message', (event) => {
-		const data = JSON.parse(event.data);
+		const data = JSON.parse(event.data as string);
 
 		if (data.type === 'join') {
 			roomId = data.roomId;

backend/package-lock.json

@@ -21,9 +21,10 @@
     "ws": "^8.18.3"
   },
   "devDependencies": {
+    "@types/cors": "^2.8.19",
     "@types/express": "^5.0.3",
     "@types/ws": "^8.18.1",
     "tsx": "^4.20.3",
     "typescript": "^5.8"
   }
-}
+}