Remove unused scripts and dependencies

Deleted the 'index-knowledge' and 'index-knowledge:clear' scripts, and removed the '@xenova/transformers', 'ai', and 'chromadb' dependencies from package.json as they are no longer needed.

Author: DongDuong2001

package.json

@@ -9,8 +9,6 @@
     "lint": "eslint . --ext .ts,.tsx,.js,.jsx",
     "start": "NODE_ENV=production node server.js",
     "start:next": "next start",
-    "index-knowledge": "node scripts/index-knowledge.js",
-    "index-knowledge:clear": "node scripts/index-knowledge.js --clear"
   },
   "dependencies": {
     "@heroicons/react": "^2.2.0",
@@ -47,11 +45,8 @@
     "@supabase/supabase-js": "^2.80.0",
     "@types/html2canvas": "^1.0.0",
     "@vercel/analytics": "latest",
-    "@xenova/transformers": "^2.17.2",
-    "ai": "^6.0.38",
     "autoprefixer": "^10.4.20",
     "bcryptjs": "^3.0.3",
-    "chromadb": "^3.2.2",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "1.0.4",
@@ -102,4 +97,4 @@
     "typescript": "^5.9.3"
   },
   "packageManager": "pnpm@10.26.1+sha512.664074abc367d2c9324fdc18037097ce0a8f126034160f709928e9e9f95d98714347044e5c3164d65bd5da6c59c6be362b107546292a8eecb7999196e5ce58fa"
-}
+}