ZeppBridge 2.4.1
启动时先显示窗口和加载提示，数据库初始化与本地报文重放改到后台进行，不再黑屏等待；设置页在后台维护期间切换语言、切换导航不再卡死；退出时后台维护按批次收尾，不再长时间等待。修正本地数据重建进度与心率可用性的判定，macOS 应用内更新现在会跳过放在 .app 包内的数据目录并保留账号数据。
Startup now shows the window with a loading hint while the database initializes and local payloads replay in the background — no more black screen. Settings no longer freezes when switching language or navigating during background maintenance, and quitting no longer waits for the whole maintenance window. Local rebuild progress and heart-rate availability detection are corrected, and macOS in-app updates now refuse to touch data folders inside the .app bundle and keep account data safe.
内部：清理旧兼容命令层、无用 IPC 面与冗余依赖（#89、#93–#99）；修复归一化积压虚报、readiness 255 哨兵值与心率接口误判（#100）；macOS 更新数据保护与迁移加固（#101、#102）。