Auto-Deploy on Push / verify-and-notify (push) Canceled after 0s
Live-verified via matrix-rtc-sfu logs: VP9 gets silently rejected and falls back to VP8 (SFU's enabledPublishCodecs is [VP8, H264, H265], no VP9/AV1). Dropdown now only offers those three; also fixed screenShareCodec's default which was "vp9" (fork commit ac99cc65 in threadnet-call). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>