"Rollout"
- App 簽章、商店審核與分批發布流程 說明 mobile / desktop app CI/CD 如何處理 signing secret、store review、phased rollout、hotfix 與多版本共存
- Rollout Strategy 說明新版本如何以可控節奏推進到全部流量
- 5.8 Deployment Rollout with Drain and Rollback（實作示範） 以 checkout service 示範部署切換如何交付 canary evidence、drain signal、release gate 與 incident decision log。