env variables

package.json

@@ -21,27 +21,28 @@
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.2",
     "compression": "^1.8.1",
+    "joi": "^18.2.1",
     "pg": "^8.13.1",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
   },
   "devDependencies": {
+    "@eslint/js": "^9.18.0",
     "@nestjs/cli": "^11.0.0",
     "@types/compression": "^1.8.1",
     "@types/express": "^5.0.0",
     "@types/jest": "^30.0.0",
     "@types/node": "^22.10.7",
     "@types/pg": "^8.11.10",
+    "eslint": "^9.18.0",
+    "globals": "^16.0.0",
     "jest": "^30.0.0",
     "ts-jest": "^29.2.5",
     "ts-loader": "^9.5.2",
     "ts-node": "^10.9.2",
     "tsconfig-paths": "^4.2.0",
     "typescript": "^5.7.3",
-    "typescript-eslint": "^8.20.0",
-    "@eslint/js": "^9.18.0",
-    "eslint": "^9.18.0",
-    "globals": "^16.0.0"
+    "typescript-eslint": "^8.20.0"
   },
   "jest": {
     "moduleFileExtensions": [