node-webrtc-rust brings voice agents into Node with Rust media

This moves real-time voice-agent infrastructure closer to the application layer: Node handles session logic while Rust keeps audio timing, VAD, barge-in, and playback inside the same process. The practical effect is less dependence on a separate SFU-style media tier for agent workloads, with optional cloud STT/TTS and a local Sherpa-ONNX path for sensitive audio. For the streaming stack, the notable signal is the breadth of supported vendors and the packaging model: npm install plus prebuilt binaries across six platform targets. Watch whether the 0.3.0 release expands beyond the current voice-agent feature set and vendor matrix.