Add YouTube playback and queue flow

Dockerfile

@@ -3,12 +3,19 @@ FROM node:22-bookworm-slim
 ENV NODE_ENV=production
 ENV PORT=3000
 ARG DEBIAN_FRONTEND=noninteractive
+ARG YT_DLP_PIP_SPEC="yt-dlp[default] @ https://github.com/yt-dlp/yt-dlp/archive/master.tar.gz"
 
 WORKDIR /app
 
+ADD https://api.github.com/repos/yt-dlp/yt-dlp/commits/master /tmp/yt-dlp-master.json
+
 RUN apt-get update \
-  && apt-get install -y --no-install-recommends ca-certificates ffmpeg \
-  && rm -rf /var/lib/apt/lists/*
+  && apt-get install -y --no-install-recommends ca-certificates ffmpeg python3 python3-pip \
+  && python3 -m pip install --no-cache-dir --break-system-packages --upgrade "$YT_DLP_PIP_SPEC" \
+  && yt-dlp --version \
+  && apt-get purge -y --auto-remove python3-pip \
+  && rm -f /tmp/yt-dlp-master.json \
+  && rm -rf /root/.cache/pip /var/lib/apt/lists/*
 
 COPY package*.json ./
 RUN npm ci --omit=dev