Fix Docker Compose for Mac dev mode

- Replace all ghcr.io images (blocked without auth) with local Dockerfiles:
  snapserver/snapclient from debian:bookworm-slim,
  mopidy from debian:bookworm-slim + Python/GStreamer,
  librespot disabled in dev (v0.8.0 has vergen dep bug)
- Fix duplicate 'image' and 'version' keys in compose files
- Dev mode: zones + librespot use alpine dummy containers
- Dashboard dev: use upstream node:20-alpine directly (no custom build)
- Port changed to 8090 (8080 taken by Supabase)

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

docker/mopidy/Dockerfile

@@ -1,20 +1,29 @@
-FROM ghcr.io/mopidy/mopidy:latest
+FROM debian:bookworm-slim
 
-USER root
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+       python3 python3-pip python3-gi python3-gi-cairo \
+       gstreamer1.0-plugins-base \
+       gstreamer1.0-plugins-good \
+       gstreamer1.0-plugins-ugly \
+       gstreamer1.0-tools \
+       gir1.2-gstreamer-1.0 \
+       gir1.2-gst-plugins-base-1.0 \
+    && rm -rf /var/lib/apt/lists/*
 
-RUN pip3 install \
-  mopidy-iris \
-  mopidy-local \
-  mopidy-stream \
-  mopidy-tunein \
-  mopidy-podcast \
-  --break-system-packages
+RUN pip3 install --break-system-packages \
+    mopidy \
+    mopidy-iris \
+    mopidy-local \
+    mopidy-tunein
 
-# Ensure audio pipe directory exists at startup
-RUN echo '#!/bin/sh\nmkdir -p /tmp/audio\nexec "$@"' > /entrypoint-wrapper.sh \
-  && chmod +x /entrypoint-wrapper.sh
+RUN useradd -m -u 84 mopidy \
+    && install -d -o mopidy /var/cache/mopidy /var/lib/mopidy /var/log/mopidy
 
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+EXPOSE 6680
 USER mopidy
-
-ENTRYPOINT ["/entrypoint-wrapper.sh"]
+ENTRYPOINT ["/entrypoint.sh"]
 CMD ["mopidy", "--config", "/etc/mopidy/mopidy.conf"]