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- read_stuck_points 最忙平台末帧损坏 → last fallthrough 到干净平台 (重构最险分支的回归测试,原只在一次性验证脚本里) - _fmt_last round 边界:500→<1s、999→停留1s - continue 注释点明与旧版 _platform_stuck→None 等价 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>