feat: inspect public video sources with yt-dlp

Dockerfile

@@ -2,10 +2,15 @@ FROM python:3.12-slim-bookworm AS base
 
 ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
-    PIP_DISABLE_PIP_VERSION_CHECK=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    YTDLP_NO_PLUGINS=1
 
 WORKDIR /app
 
+RUN apt-get update \
+    && apt-get install --yes --no-install-recommends ffmpeg \
+    && rm -rf /var/lib/apt/lists/*
+
 RUN groupadd --gid 10001 app \
     && useradd --uid 10001 --gid app --no-create-home --shell /usr/sbin/nologin app