lib/util/autonomy-gate.mjs keeps only gatesValue + parseGatesArgs and the
CLI ({"ok":true,"gates":true|false}; exact usage error on a bad value;
the old --state/--event arguments are a usage error). The four commands
run 'autonomy-gate.mjs --gates [value]' and read gates. Prose (README,
operations, architecture, sdlc-playbook-gap) and the S24, gates-flag
and [#1] tests follow (R9).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>