Resolves the contract-vs-practice contradiction: 04/10/11 now state the
menu home is what makes every board function keyboard-reachable and
remappable; 11's no-default rows are deliberate, not violations.
Claude-Session: https://claude.ai/code/session_01HJ7PhFNmQ19bvy9RMD6GSb
Resolves the 02-vs-04 contradiction: foreign edits that flip deleted:
on a selected card eject it from the selection (and pending cut, which
already behaved this way), so 04's homogeneous-by-liveness invariant
holds across reloads and menu validation never sees a mixed selection.
Claude-Session: https://claude.ai/code/session_01HJ7PhFNmQ19bvy9RMD6GSb