add streaming and mobile-app instructions

docker-compose.yml

@@ -32,6 +32,34 @@ services:
     # Snapserver reads FIFOs — needs to stay running even when pipes are empty
     # so it must open them in non-blocking mode (handled by snapserver itself)
 
+  # ── Icecast2 (HTTP audio stream server) ─────────────────────────────────────
+  icecast:
+    build: ./icecast
+    container_name: icecast
+    restart: unless-stopped
+    ports:
+      - "8000:8000"   # HTTP stream — mobile/browser clients connect here
+    environment:
+      - ICECAST_SOURCE_PASSWORD=${ICECAST_SOURCE_PASSWORD:-groove_source}
+      - ICECAST_RELAY_PASSWORD=${ICECAST_RELAY_PASSWORD:-groove_relay}
+      - ICECAST_ADMIN_PASSWORD=${ICECAST_ADMIN_PASSWORD:-groove_admin}
+      - ICECAST_LISTENER_PASSWORD=${ICECAST_LISTENER_PASSWORD:-groove_listen}
+
+  # ── Stream Relay (PCM FIFO → MP3 → Icecast) ─────────────────────────────────
+  stream-relay:
+    build: ./stream-relay
+    container_name: stream-relay
+    restart: unless-stopped
+    volumes:
+      - <<: *audio-volume
+    environment:
+      - ICECAST_HOST=icecast
+      - ICECAST_PORT=8000
+      - ICECAST_SOURCE_PASSWORD=${ICECAST_SOURCE_PASSWORD:-groove_source}
+      - ICECAST_MOUNT=/stream.flac
+    depends_on:
+      - icecast
+
   # ── Mopidy ───────────────────────────────────────────────────────────────────
   mopidy:
     build: ./mopidy
@@ -49,6 +77,7 @@ services:
       - <<: *audio-volume
     depends_on:
       - snapserver
+      - stream-relay
     environment:
       - TZ=${TZ:-Europe/Vienna}
       - SPOTIFY_CLIENT_ID=${SPOTIFY_CLIENT_ID}