issue # 회원가입 로직 구현 완료

package.json

@@ -25,6 +25,7 @@
     "@nestjs/common": "^11.0.1",
     "@nestjs/core": "^11.0.1",
     "@nestjs/platform-express": "^11.0.1",
+    "bcrypt": "^6.0.0",
     "dotenv": "^17.2.3",
     "drizzle-kit": "^0.31.7",
     "drizzle-orm": "^0.44.7",
@@ -41,6 +42,7 @@
     "@nestjs/cli": "^11.0.0",
     "@nestjs/schematics": "^11.0.0",
     "@nestjs/testing": "^11.0.1",
+    "@types/bcrypt": "^6",
     "@types/express": "^5.0.0",
     "@types/ioredis": "^5.0.0",
     "@types/jest": "^30.0.0",
@@ -79,5 +81,6 @@
     ],
     "coverageDirectory": "../coverage",
     "testEnvironment": "node"
-  }
+  },
+  "packageManager": "yarn@4.11.0"
 }