Text channels are real Mumble channels with a marker in the description.
Their messages travel as plugin data to everyone on the server, are kept
by the clients and handed to people who connect later.
Channels can be dropped in front of or behind another channel, with a
line where they land. A description preview no longer sticks after a drop.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
