librelad a86c142e74 fix(backup): honest failures, rootless docker in capture paths, speedtest key capture
- backup_files.sh / backup_db.sh: every docker exec/run in the capture,
  sidecar-discovery, rehydrate and DB-import paths now goes through
  runFileOp — bare docker can't reach the rootless daemon socket, which
  made live capture fail (and silently bounce containers) on every
  rootless install, and would have broken DB restores the same way.
- capture/rehydrate stderr is kept and printed on failure instead of
  being discarded, with a clear message when the image has no tar.
- backup_app_start.sh: when no location produced a complete snapshot the
  backup now returns 1 — the task is marked failed instead of logging a
  nonexistent/incomplete backup as a success and skipping verification.
- restic engine: on restic exit 3 the orphan incomplete snapshot is
  called out explicitly so nobody restores it believing it is whole.
- speedtest: capture /config through the container (root-owned TLS key
  and logrotate state are unreadable from the host), which also flips
  its auto strategy to live — no more container stop per backup.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-08-21 00:31:46 +01:00
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