LANGUAGES.a2ml: rewrite to one canonical [[language]] schema

The structured registry held only two entries in two incompatible schemas
(kitchenspeak as [languages.*] table, haec as [[language]] stanza); every
other language existed only in a corrupted, commented "do not parse"
s-expression blob that still modelled Solo/Duet/Ensemble as top-level
languages and claimed "eight languages".

Rewrites the file to a single [[language]] array-of-tables covering all 14
family languages + the KitchenSpeak DSL, plus typefix-zero as
status="proposed". Drops the legacy blob (recoverable from git history) and
records the scope boundary (database/type-theory estates stay out).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016t5KLJDtqdeDi1EMNqNx6K

Author: claude