Add Navidrome and SUB/WAVE AI radio station

Navidrome indexes the existing music library on nas_media for Subsonic
access. SUB/WAVE (byo-proxy variant, LAN-only) provides the Icecast
broadcast, Liquidsoap crossfade/ducking, and AI DJ controller, reusing
the existing Ollama instance over npm-network for the LLM and Piper
for TTS.

navidrome/docker-compose.yaml

@@ -0,0 +1,25 @@
+services:
+  navidrome:
+    image: deluan/navidrome:latest
+    container_name: navidrome
+    restart: unless-stopped
+    environment:
+      - ND_MUSICFOLDER=/media/music
+      - ND_LOGLEVEL=info
+      - ND_PORT=4533
+      - TZ=America/New_York
+    ports:
+      - 4533:4533
+    volumes:
+      - /srv/navidrome/data:/data
+      - nas_media:/media:ro
+    networks:
+      - npm-network
+
+volumes:
+  nas_media:
+    external: true
+
+networks:
+  npm-network:
+    external: true