CallEmbed asked Element Call to send a call-start notification for every
non-DM call. In persistent voice channels and space rooms it carries an
@room mention: every member got a highlighted ping (and phone push)
whenever a moderator or admin joined first, and other clients showed it
as a missed call. Now only rooms that can ring (isRingableRoom: DMs and
invite-only groups outside a space) get ring/notification; everything
else passes sendNotificationType=none (element-call-embedded 0.25.0-lotus.23).
Verified with a local build of the fork: an admin joining the Voice Lounge
sends none, and Bob gets no new notification (before: +1 highlighted).
Fixes#295
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5