- Eliminate the tidal/ self-contained doc mirror; docs now have two canonical
homes (root *.md and docs/), with planning/specs/research/reviews moved up
- Remove stale .agents/skills and .ai mirrors; canonicalize skills under .claude/
- Add pre-commit hook + scripts/check-docs.sh doc-guard + scripts/install-hooks.sh
- Implement M0-M10 seven-dimension review findings across engine, net, server,
and tidalctl (durability, replication, query, WAL, storage, CLI hardening)
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