backup:configure could point automatic backups at any writable directory
(e.g. a statically served one) and set a cron of every second; an invalid
expression deleted the running job before failing, silently ending
backups.
- A path entered in the UI is resolved under BACKUP_ROOT (default
./backups) and refused if it leaves it; env values stay unrestricted.
- The schedule must be a five-field cron that runs at most hourly.
- reload() validates before replacing the running job.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
