Hi, if I try to create a user with only 3 characters, it fails with an error 400, e.g.: "tom" <img width="579" alt="Image" src="https://github.com/user-attachments/assets/4b9bc2c1-6d4f-44ca-abff-0f595767b322" /> if I add another additional character, it works. Any hints? br, Tom