Comms admin
Maintenance mode
Admins toggle arcana_settings.maintenance_mode; auth_check redirects protected pages to a 503 maintenance screen.
Implemented Verified from source User-facing
In one sentence
When maintenance_mode is '1', pages including auth_check.php send users to arcana.maintenance.php (HTTP 503).
Limitation
Public pages that do not include auth_check.php are not covered.