chore(deps): add zod and nestjs-zod for schema validation

package.json

@@ -32,16 +32,15 @@
     "@prisma/client": "^7.3.0",
     "bcryptjs": "^3.0.3",
     "better-sqlite3": "^12.6.2",
-    "class-transformer": "^0.5.1",
-    "class-validator": "^0.14.3",
     "dotenv": "^17.2.3",
-    "jsonwebtoken": "^9.0.2",
+    "nestjs-zod": "^5.1.1",
     "passport": "^0.7.0",
     "passport-jwt": "^4.0.1",
     "prisma": "^7.3.0",
     "qrcode": "^1.5.4",
     "reflect-metadata": "^0.2.2",
-    "rxjs": "^7.8.2"
+    "rxjs": "^7.8.2",
+    "zod": "^4.3.6"
   },
   "devDependencies": {
     "@nestjs/cli": "^11.0.16",
@@ -49,7 +48,6 @@
     "@nestjs/testing": "^11.1.13",
     "@types/express": "^5.0.6",
     "@types/jest": "^30.0.0",
-    "@types/jsonwebtoken": "^9.0.10",
     "@types/node": "^25.2.1",
     "@types/passport-jwt": "^4.0.1",
     "@types/qrcode": "^1.5.6",