Add a summon command (alias ytjoin) that joins the caller's voice
channel, replacing the old Audio-cog summon. _ensure_connected now
moves the bot with Player.move_to when it is already in a different
channel. Revert the ttstoy tts join back to the simple connect.
Post a status message on play and live-edit it with the download
percentage via a throttled yt-dlp progress_hook (max one edit/sec,
scheduled onto the event loop from the executor thread). Shows
Downloading (N%), then Converting to mp3, then Now playing. Removed all
emoji and em-dashes from user-facing strings and comments.
The Minecraft cog already registers top-level 'join' and 'leave', which
caused a CommandRegistrationError. Namespace these two commands under a
yt-prefix (ytjoin, ytleave, alias ytdc).
Standalone cog that owns the Red-Lavalink client connection
(initialize on startup, close on unload) and plays YouTube/yt-dlp
sources by downloading audio, transcoding to mp3, and playing through
Lavalink's local source. Per-guild queues, multi-VC capable. Commands:
play, skip, stop, pause, resume, queue, nowplaying, volume, join, leave.
owen