Operator decision: no policy difference between cc-ci and recipe-maintainer. On
inspection ARM already agrees (recipe-upgrade-cron-all: 'PRs are reviewed and merged
manually by a human afterwards... never merges anything'; 'no human review in the
middle' = skip the mid-run plan confirmation only). Wrappers previously framed this
as a cc-ci override over ARM auto-merge flows — wrong reading; now stated as ONE
unified rule. /help conventions updated to match.