add support ai-agent

package.json

@@ -22,6 +22,9 @@
   "homepage": "https://bitbucket.org/online-mentor/multi-stub#readme",
   "dependencies": {
     "@supabase/supabase-js": "^2.49.4",
+    "@langchain/community": "^0.3.41",
+    "@langchain/core": "^0.3.46",
+    "@langchain/langgraph": "^0.2.65",
     "ai": "^4.1.13",
     "axios": "^1.7.7",
     "bcrypt": "^5.1.0",
@@ -34,8 +37,10 @@
     "express": "5.0.1",
     "express-jwt": "^8.5.1",
     "express-session": "^1.18.1",
+    "gigachat": "^0.0.14",
     "jsdom": "^25.0.1",
     "jsonwebtoken": "^9.0.2",
+    "langchain-gigachat": "^0.0.11",
     "mongodb": "^6.12.0",
     "mongoose": "^8.9.2",
     "mongoose-sequence": "^6.0.1",
@@ -44,7 +49,7 @@
     "pbkdf2-password": "^1.2.1",
     "rotating-file-stream": "^3.2.5",
     "socket.io": "^4.8.1",
-    "uuid": "^11.0.3"
+    "zod": "^3.24.3"
   },
   "devDependencies": {
     "@eslint/js": "^9.17.0",