- /etc/micronas.env → /etc/micronas/micronas.env
- /etc/micronas-webdav.passwd → /etc/micronas/webdav.passwd
- _save_credentials creates /etc/micronas/ if missing
- _write_webdav_conf: chown root:www-data on passwd file so Apache can read it
- micronas.service EnvironmentFile updated
- README: credentials now set via /setup, config dir step added
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>