/users/signup answers 403 unless SIGNUP_ENABLED is set. A public GET /utils/config/ tells the login page, which hides the sign-up link, and the signup page explains that an administrator creates accounts. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013GAeg4Jo6xjZzjwy9QDWMQ