feat(server): Dockerfile and compose for the Lidarr stack

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/Dockerfile

@@ -0,0 +1,15 @@
+FROM python:3.12-slim
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends ffmpeg \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+COPY server/requirements.txt /app/server/requirements.txt
+RUN pip install --no-cache-dir -r /app/server/requirements.txt yt-dlp
+
+COPY musicfetch /app/musicfetch
+COPY server /app/server
+
+EXPOSE 6769
+CMD ["sh", "-c", "uvicorn server.app:app --host 0.0.0.0 --port ${MUSICFETCH_PORT:-6769}"]