Add registration

packages/backend/package.json

@@ -24,6 +24,9 @@
     "@nestjs/core": "^11.0.1",
     "@nestjs/platform-express": "^11.0.1",
     "axios": "^1.13.2",
+    "bcrypt": "^6.0.0",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.3",
     "pg": "^8.16.3",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1",
@@ -75,6 +78,7 @@
   "trustedDependencies": [
     "@nestjs/core",
     "@swc/core",
+    "bcrypt",
     "unrs-resolver"
   ]
 }