add precompiled axmodel artifacts (models/) and README product section

fix README: use vad.sr (StreamVAD API updated in silero-vad-axera 0.1.2)

align with silero-vad-axera 0.1.2 (axmodel-only)

fix gradio

moved silero to pypi

Fix StreamVAD audio slicing

Add gradio app

Fully functional StreamVAD

Upload demo.wav

Update .gitattributes

Create config.json

initial commit