- backup.sh: runs every 3 days via root crontab, uses built-in container
backup command, copies db/config/rsa_key to /mnt/backups/vaultwarden,
keeps last 5 backups, notifies Zabbix item vaultwarden.backup.ts (id 70368)
- Zabbix trigger fires if no backup received in 4 days
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
