Add audio separation web app and verified recovery sources

deploy/separator-web/Dockerfile

@@ -0,0 +1,6 @@
+FROM python:3.12-slim-bookworm
+RUN apt-get update && apt-get install -y --no-install-recommends ffmpeg && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+COPY app.py index.html ./
+USER 65534:65534
+CMD ["python","app.py"]