v0.4.0

What's Changed

• fix: vendor whisper-rs callback soundness fixes and drop downstream workarounds by @rubas in #27
• feat: voice activity detection via :vad_model_path by @rubas in #28
• fix: filter native whisper.cpp logging; keep VAD contexts per call by @rubas in #30
• fix: correctness sweep from the whole-library review by @rubas in #31
• chore: release 0.4.0 by @rubas in #29

Full Changelog: v0.3.1...v0.4.0