Go Live closes viewer windows, fetches the Authentik-identified user's MediaMTX key from dumpd
(/etc/vanguard/streamers.json written by configure.py), opens Chrome's window-only picker with
audio, prefers H.264 so MediaMTX can record, caps at 12 Mbps / 1440p60, shows live stats, Stop.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>