Two device-REPORTING fixes from the #134 investigation (the PiP rendering itself
was #135).
1) "Device reconnects every ~45s" was a logging artifact, not instability. The
player re-emits a full device:register on the SAME socket every ~45-60s
(requestPlaylistRefresh) to pull a fresh playlist; the server logged
"Device reconnected" for every register of a known device. The attached 4-day
log showed 1415 "reconnected" vs 30 real socket connects and 0 heartbeat
timeouts — the socket never dropped, so #134's "PiP lost between reconnects"
was a misdiagnosis. Fix: only log a genuine reconnect (new socket); a
same-socket re-register is a refresh (currentDeviceId === device_id) and stays
quiet. The playlist still refreshes.
2) Device reported 720p while the monitor showed a 1080 signal. DeviceInfo
reported getRealMetrics() — the UI RENDER SURFACE — but TV boxes render the UI
at 720p and upscale to a 1080p HDMI signal. Now report BOTH: screen_width/height
= the output mode (Display.Mode.physicalWidth/Height), render_width/height =
the render surface (getRealMetrics). Two new nullable devices columns, stored on
pairing INSERT + reconnect UPDATE, exposed via the device API, shown on the
dashboard as "1920x1080 (UI 1280x720)" when they differ.
Backward compatible (required + verified on emulator): a device that omits
render_* — or sends no device_info at all — still registers, with render_* = null,
on both the INSERT and UPDATE paths. New columns nullable; stores use
`?? null` / `|| null`. All 167 server tests pass.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>