Tuwunel v1.9.0 removes `[global.ldap] name_attribute` and no longer checks
a secondary attribute for the localpart, so a directory entry must carry it
in `uid_attribute` to allow login.
A leftover key produces no boot warning, so the playbook reports it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>