a7fb6e5ff3
- 新增 SplashPage + appReadyProvider/_BootGate：启动闸门将启动页覆盖在最上层， 直到 auth 判定完成且今日健康卡数据就绪，遮住登录页闪现与首页对话流初始态 - auth 初始状态改为 isLoading=true，无 token 时再置 false - values-night/styles.xml 改为亮色白底，消除深色模式下 Flutter 初始化期间的黑色窗口背景 - 带 8 秒安全兜底，避免离线时卡在启动页
health_app
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