feat : use dto for serialization

package-lock.json

@@ -18,6 +18,7 @@
         "@nestjs/swagger": "^7.3.1",
         "@nestjs/typeorm": "^10.0.2",
         "@types/ranjs": "^1.22.7",
+        "class-transformer": "^0.5.1",
         "connect-redis": "^8.0.1",
         "express-session": "^1.18.0",
         "pg": "^8.13.1",
@@ -4488,6 +4489,12 @@
       "integrity": "sha512-0TNiGstbQmCFwt4akjjBg5pLRTSyj/PkWQ1ZoO2zntmg9yLqSRxwEa4iCfQLGjqhiqBfOJa7W/E8wfGrTDmlZQ==",
       "dev": true
     },
+    "node_modules/class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw==",
+      "license": "MIT"
+    },
     "node_modules/cli-cursor": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-3.1.0.tgz",