PROTOCOL.md 19.9 specifies perm.inventory (owners, groups with parents,
holders, leased pairs; sliced, paged, one snapshot) and perm.sync's
protocol-13 changes (parents, titles and ranks written, absent means
leave it, managed and foreign gone). PLAN_REDESIGNS 1.9 records what the
build settled and the walk on both rigs.
Refs RunicGateway/Module-Rust#21
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY