Hooks the custom screen-share picker up to a native WASAPI loopback
capture so "Mit System-Sound" no longer falls back to the OS picker on
Windows. Rust side opens the default render endpoint, channels 48 kHz
f32 stereo to an AudioWorklet, which feeds a MediaStreamDestination for
LiveKit to publish as ScreenShareAudio. Ring buffer sized for latency
(80 ms target, drop-to-target on overflow) and the AudioContext is
resumed eagerly so initial burstiness can't pile up.
Adds a temporary attachTrack:audio diagnostic log to confirm source
tagging matches between old and new clients.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
byGalax