Fix silent backup failures: retry alerts, detect unmounted drives#54

Merged

claudio-pi merged 3 commits intomainfrom

fix/backup-alert-reliability

Feb 10, 2026

Commits on Feb 10, 2026

Fix silent backup failures: retry alerts, detect unmounted drives
claudio-pi
committed
Fix mount check for subdirectories and deduplicate unmount detection
claudio-pi
committed
Replace _send_alert with telegram_send_message
claudio-pi
committed