lint and format

package.json

@@ -17,7 +17,8 @@
     "test:watch": "jest --watch",
     "test:cov": "jest --coverage",
     "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
-    "test:e2e": "jest --config ./test/jest-e2e.json"
+    "test:e2e": "jest --config ./test/jest-e2e.json",
+    "prepare": "husky"
   },
   "dependencies": {
     "@ai-sdk/anthropic": "^3.0.58",
@@ -28,6 +29,7 @@
     "@nestjs/core": "^11.0.1",
     "@nestjs/platform-express": "^11.0.1",
     "@nestjs/platform-socket.io": "^11.1.17",
+    "@nestjs/swagger": "^11.2.6",
     "@nestjs/websockets": "^11.1.17",
     "ai": "^6.0.116",
     "axios": "^1.13.6",
@@ -49,7 +51,9 @@
     "eslint-config-prettier": "^10.0.1",
     "eslint-plugin-prettier": "^5.2.2",
     "globals": "^16.0.0",
+    "husky": "^9.1.7",
     "jest": "^30.0.0",
+    "lint-staged": "^16.4.0",
     "prettier": "^3.4.2",
     "source-map-support": "^0.5.21",
     "supertest": "^7.0.0",
@@ -61,6 +65,10 @@
     "typescript": "^5.7.3",
     "typescript-eslint": "^8.20.0"
   },
+  "lint-staged": {
+    "src/**/*.ts": ["eslint --fix", "prettier --write"],
+    "test/**/*.ts": ["eslint --fix", "prettier --write"]
+  },
   "jest": {
     "moduleFileExtensions": [
       "js",