Add matplotlib to Space runtime

Consumer-friendly demo: record/upload video, no research UI

Add predict_audio and predict_video API endpoints for public website

Bump gradio SDK to 6.19.0 (HfFolder fix)

Pin Space to Python 3.12 (gradio/pydub audioop fix)

Fix build: runtime deps + src sys.path shim

Deploy MeowContext Lab acoustic-5 demo (v0.1.0)

initial commit