依赖更新节奏与窗口治理（慢速通道-灰度-冻结）最佳实践

实现示例type Channel = 'fast' | 'slow' type Env = 'dev' | 'prod' type Window = { start: number; end: number } function within(w: Window, now: number): boolean { return now >= w.start && now <= w.end } function allowUpdate(env: Env, ch: Channel, now: number, freeze?: Window): boolean { if (freeze && within(freeze, now)) return false if (env === 'prod' && ch !== 'slow') return false return true } 审计与发布治理记录通道与窗口决策；冻结期内的升级默认阻断并输出证据。灰度结束后进行合规复核与回归检查。