The service is alive exactly while the stopwatch is not idle, and it is
`specialUse` with the subtype spelled out — reusing `systemExempted` would
have the app claim it is continuing alarm functionality, which it is not.
No wake lock, ever: the notification carries the platform chronometer
counting up from a base derived when it is posted and never stored, so the
system draws the ticking and the process can sleep through it.
Its channel is `IMPORTANCE_LOW` because nothing here ever alerts. The Lap,
Pause, Resume and Reset buttons are broadcasts carrying no extras — the
receiver reads the stored run rather than trusting an intent — and the body
opens the Stopwatch tab. Boot, time change and package replacement all reach
the third engine now, alongside the other two.
makiolaj
b667e46877