fix(user-service): add jsonwebtoken dependency for admin auth

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/services/user-service/package.json

@@ -24,6 +24,7 @@
     "pg": "^8.11.0",
     "ioredis": "^5.3.0",
     "bcrypt": "^5.1.0",
+    "jsonwebtoken": "^9.0.0",
     "rxjs": "^7.8.0",
     "class-validator": "^0.14.0",
     "class-transformer": "^0.5.1",
@@ -36,6 +37,7 @@
     "@types/bcrypt": "^5.0.0",
     "@types/express": "^4.17.21",
     "@types/jest": "^29.5.0",
+    "@types/jsonwebtoken": "^9.0.0",
     "@types/node": "^20.10.0",
     "@types/uuid": "^9.0.0",
     "jest": "^29.7.0",