Android trim callbacks are best-effort — LMK can kill without ever
delivering one — yet the RSS watchdog only ran on desktop with a fixed
1.5GB bar no 2GB TV box ever reaches before dying. The watchdog now
runs on Android with a threshold scaled to device RAM, an eviction
floor and cooldown against refetch churn, and a lower backgrounded bar
since a paused app is LMK's first candidate.
The logs-screen header and startup line now record the renderer, the
effects tier with its raw hardware signals, and the boot RSS, so
uploaded reports answer whether the reduced tier engaged.
Ref #1349
TV boxes share limited RAM with 4K video decode buffers, so the 100MB
phone budget crowds out the decoder. Low-RAM TVs already on the reduced
tier keep the tighter 48MB cap.
From #1479.
edde746