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根因:user_settings 早期无 vibrate 字段,getSettings 未兜底, _remind 的 !s.vibrate 误判 undefined 为关闭,导致震动静默失效, 需手动操作开关才恢复。 - storage: getSettings 兜底 vibrate/voiceGuide/vibrateIntensity 默认值 - timer: !s.vibrate 改 === false,字段缺失视为开(与 voiceGuide 一致) - timer: vibrate 按 vibrateIntensity 选 API(light/medium=vibrateShort, heavy=vibrateLong),fail 回调辅助排查 - settings: 新增"震动强度"三档(短促/标准/强烈),默认强烈 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>