user d884d2bb55 refactor: switch Mumble voice to pymumble transport ...

asyncio's SSL memory-BIO transport silently drops voice packets even
though text works fine. pymumble uses blocking ssl.SSLSocket.send()
which reliably delivers voice data.

- Rewrite MumbleBot to use pymumble for connection, SSL, ping, and
  voice encoding/sending
- Bridge pymumble thread callbacks to asyncio via
  run_coroutine_threadsafe for text dispatch
- Voice via sound_output.add_sound(pcm) -- pymumble handles Opus
  encoding, packetization, and timing
- Remove custom protobuf codec, voice varint, and opus ctypes wrapper
- Add container patches for pymumble ssl.wrap_socket (Python 3.13) and
  opuslib find_library (musl/Alpine)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-02-21 23:15:42 +01:00

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