Fixed LLM chat function

package.json

@@ -4,7 +4,8 @@
   "version": "0.0.0",
   "type": "module",
   "scripts": {
-    "dev": "vite",
+    "dev": "concurrently \"vite\" \"npx tsx server.ts\"",
+    "dev:frontend": "vite",
     "build": "tsc -b && vite build",
     "lint": "eslint .",
     "typecheck": "tsc --noEmit",
@@ -18,15 +19,17 @@
     "@xenova/transformers": "^2.17.2",
     "concurrently": "^9.2.1",
     "d3": "^7.9.0",
+    "dotenv": "^17.3.1",
     "embla-carousel-autoplay": "^8.6.0",
     "embla-carousel-react": "^8.6.0",
+    "express": "^4.21.0",
     "framer-motion": "^11.15.0",
     "fuse.js": "^7.1.0",
     "lucide-react": "^0.468.0",
-    "express": "^4.21.0",
     "nodemailer": "^6.9.0",
     "react": "^18.3.1",
-    "react-dom": "^18.3.1"
+    "react-dom": "^18.3.1",
+    "react-markdown": "^10.1.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.17.0",