v1.6.22

本次更新做了两点：第一，临时错误重试改为“成功后重置”，即只要某段执行成功，就把重试次数和退避节奏清零，后续再遇到 transient 错误会从第 1 次重试重新开始。第二，修复了分段续跑时主代理轮次显示回跳的问题，在同一请求内对 iteration 做累计偏移，避免出现“第3轮→第1轮”，让前端轮次持续递增、体验更一致。

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This update includes two key changes. First, transient retry behavior now resets after a successful segment, meaning retry count and backoff schedule start over from scratch on the next transient failure. Second, the main-agent iteration display no longer jumps backward during segmented resumes; we added an in-request iteration offset so UI rounds remain monotonic (e.g., no more “Round 3 → Round 1”).