release-feature-audit

Use when a new PuPu feature finishes implementation and needs its consistency audit before its ticket is marked done — "audit #123", "审计这个功能", "这个 feature 过一遍检查" — or when release-close-sprint roll-call finds a new feature that was never audited. Also covers standalone i18n checks ("漏翻了吗", "检查 i18n"), which used to be the i18n-coverage skill.