The scripts/odysseus-backup snapshot/restore CLI was undocumented in
README.md and docs/. Add docs/backup-restore.md covering the snapshot,
list, verify, and restore subcommands, default include/skip behavior
(deep_research and mail-attachments skipped unless flagged), the
destructive-restore warning and its data.before-restore-* stash, a cron
example, and Docker-vs-native data/ paths (including the ChromaDB named
volume caveat). Link it from the README Data section.
Addresses the "Backup/restore guide and helper flow for data/" item in
ROADMAP.md. Docs only; no change to the tool.
Fixes#2583
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Hsin-Chen Pai