Two changes that close the disaster-recovery loop the Stage A-B-C
backup-hardening plan opened:
1. Resolve 'local' source to backup_destination_path
The wizard passes options.source = 'local' (the SOURCE TYPE
string). The old code assigned that verbatim to localBackupPath
and every downstream path.join() ended up with junk like
'local/database/<file>.sql.gz'. Fixed by looking up
backup_destination_path from app_settings when source='local',
plus a layered candidate fallback in performDatabaseRestore so
absolute paths in manifests are honoured first.
2. Auto-rollback on ANY failure during restore
Previously rollback only fired when post-restore VERIFICATION
failed (inside the try block). Anything that threw earlier —
path bugs, pg_restore failure, file copy errors — left the
destination half-clobbered with no automatic recovery. Now the
catch block always invokes attemptRollback if a pre-restore
backup exists, and persists rollback status in
was_rollback_attempted + an enriched error_message so the admin
can tell at a glance whether the destination is safe to retry
on top of or needs manual inspection first.
Surfaced during Ralf's validation of the end-to-end backup +
restore cycle (`docker compose down -v` then restore from disk).
Every prior failed attempt left stray PDFs behind that the next
attempt had to navigate around — exactly the "every failure makes
the next worse" pattern this fix kills.