CreateVerseWorldIntent lowers to one CreateWorld bound to the catalog's
grammar: a commons, one affordance per non-speak grammar verb (the kernel
supplies speak), and per faction an import-keyed institution granted every
verb plus a canonical fact citing aetheria:<commit>:aetheria.faction/<key>.
WorldMailbox::create_verse sends it through create_authenticated. The role
lowering moves into GrammarVerb::role_specs, which admits_roles now uses.
Also pins the reader's non-string allegiance key and invalid-UTF-8 refusals.
All commits build.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
8f6b552e7a