Sets pendingDisambiguation on state and emits "Which X — A, or B?" using
each candidate item's short text. The existing disambiguation reply path
then re-issues the original verb against the chosen target.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Previously, clicking the theme button updated localStorage and the DOM but
not state.theme, so the engine's `theme` meta-verb toggled from stale state.
Theme is now exclusively UI/storage concern. Old saves with the field still
load; the field is silently ignored.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
ejlewis