photoanalyzer/delivery_backlog/stories/US07-05-backup-operations.md

US07-05 — Deliver Backup and Operational Recovery

Epic: E07

As an operator, I want documented and tested backup/recovery procedures so application state can be restored after migration failure, database damage, or storage loss.

Acceptance criteria

• Online backup includes database consistency, required manifests, configuration references, and retention guidance without copying secrets into logs.
• Integrity checks, migration rollback/recovery, archive media handling, and restore drills have step-by-step documentation.
• Operational diagnostics report DB/WAL/cache/log/thumbnail sizes and low-disk risks.
• Legacy-process locking prevents incompatible simultaneous mutations.

Automated tests

• Recovery drills restore backups into fresh roots and run integrity/reconciliation.
• Tests cover failed migration, corrupt copy detection, retention, and process locking.

Dependencies

• US07-01, US07-04