read_aetheria_catalog opens the catalog read-only, mirrors
aetheria.verse_grammar, aetheria.verse_verb and aetheria.faction by integer
key, and refuses unknown enums, bad verb or role names and a missing grammar
by record key. Fixture written by Aetheria's own fixture writer at master
92b82e9a (provenance beside it). Also the NFD/NFC position sweep for import
keys. Not yet built or run when committed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
84b8e3d6d5