### Get User by ID
GET http://localhost:8080/user/52cc0208-a3bd-4367-94c5-0404b016a003
Authorization: Bearer {{token}}

### Get current user with token
GET http://localhost:8080/user
Authorization: Bearer {{token}}

### Create User
POST http://localhost:8080/user
Content-Type: application/json
Authorization: Bearer {{token}}

{
  "keycloakId": "52cc0208-a3bd-4367-94c5-0404b016a003",
  "username": "john.doe"
}