New page documenting the majormail (2026-06-05) issue: /etc/localtime
shipped labeled etc_t instead of locale_t on the Hetzner image, so SELinux
denied systemd-timedated and timedatectl/community.general.timezone reported
success while the symlink stayed at UTC. Fix: restorecon before setting TZ.
Indexed in index.md (SELinux) + SUMMARY.md.
