Implements proper voice activity detection with:
- 200ms hold period after audio drops below threshold to prevent choppy cutoffs
- Terminator packet (end_bit=true) when speech ends to signal stream completion
- TransmitState enum to track transmission state across frames
This ensures other Mumble clients receive proper end-of-speech signaling
for clean audio termination and correct "talking" indicator behavior.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
liamwarfield
3ddf892169