Update scripts and remove socket.io dependencies

Simplified npm scripts by removing custom server commands and using Next.js defaults. Removed 'socket.io' and 'socket.io-client' from dependencies.

Author: DongDuong2001

package.json

@@ -4,11 +4,9 @@
   "private": true,
   "scripts": {
     "build": "next build",
-    "dev": "node server.js",
-    "dev:next": "next dev",
+    "dev": "next dev",
     "lint": "eslint . --ext .ts,.tsx,.js,.jsx",
-    "start": "NODE_ENV=production node server.js",
-    "start:next": "next start"
+    "start": "next start"
   },
   "dependencies": {
     "@ai-sdk/google": "^3.0.13",
@@ -79,8 +77,6 @@
     "react-icons": "^5.5.0",
     "react-resizable-panels": "^2.1.7",
     "recharts": "2.15.4",
-    "socket.io": "^4.8.3",
-    "socket.io-client": "^4.8.3",
     "sonner": "^1.7.4",
     "speakeasy": "^2.0.0",
     "tailwind-merge": "^2.5.5",