v2026.08.09.16 – v2026.08.10.03 — 2026-08-10

Backup reliability overhaul. Fixes that make backups robust on slow or connection-limited backends — especially FTP, where a slow retention prune could previously wedge an entire schedule or make the "Delete" button spin for minutes:

• fix(backup): recover from stale restic locks so a failed run can't wedge all future backups
• fix(backup): serialize restic ops per FTP host to avoid 530 connection-limit failures
• fix(backup): deleting a single snapshot no longer blocks on prune
• fix(backup): prune only weekly per repo instead of after every backup