DiagnosticoAlarmasAndroid already collected six raw reliability fields
but only three ever reached the UI. Add a pure-Dart mapping that turns
the raw snapshot into five ordered signals with a clear ok/needs-
attention state (exact alarms, notifications, full-screen intent,
battery-optimization exemption, native pending-alarm count), plus a
manufacturer check for vendors known to require manually enabling
Autostart (Xiaomi/Redmi/POCO, Huawei, Oppo, Vivo, OnePlus, Samsung),
since there is no public API to detect or grant that setting.