Update server.js

server.js

@@ -9,6 +9,8 @@ const groq = new Groq({ apiKey: process.env.GROQ_API_KEY });
 const app = express();
 app.use(express.json());
 
+app.use('/', express.static('public'));
+
 app.post('/chat', async (req, res) => {
   const { sessionId, message } = req.body;
   if (!sessionId || !message) return res.status(400).json({ error: 'Missing sessionId or message' });