`tests/group_create.rs`: a nested `[group]` tree with no server groups yet →
`pic apply --dir` creates both (parent from directory nesting), claims them for
the `[project]`, and re-applies as a no-op; a member with only editor (no
group-admin) is refused and leaves nothing behind. Design doc §6 records M1
shipped (parent-by-nesting, Phase-0 create-in-tx, claim, RBAC + attach ceiling)
with reparent/divergence still deferred to M2.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>