Fix broken GitHub repo links (VisInject -> vis-inject)

Bump sdk_version to 5.25.0 (gradio_client schema bug is fixed in this version)

Bump Gradio to 5.x (HfFolder removed in huggingface_hub 1.0)

Pin Python 3.11 (3.13 broke pydub→audioop)

Initial Space deployment: Stage 2 fusion demo (CPU, free tier)

initial commit