Initial implementation: Bordanlage boat onboard system

Complete multiroom audio + navigation dashboard:
- Docker stack: SignalK, Snapcast (4 zones), librespot, shairport-sync, Mopidy, Jellyfin, Portainer
- React 18 + Vite dashboard with nautical dark theme
- Full mock system (SignalK NMEA simulation, Snapcast zones, Mopidy player)
- Real API clients for all services with reconnect logic
- SVG instruments: Compass, WindRose, Gauge, DepthSounder, SpeedLog
- Pages: Overview, Navigation, Audio (zones/radio/library), Systems
- Dev mode runs fully without hardware (make dev)

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

bordanlage/config/mopidy.conf

@@ -0,0 +1,32 @@
+[core]
+data_dir = /var/lib/mopidy
+
+[logging]
+verbosity = 1
+
+[audio]
+output = audioresample ! audioconvert ! audio/x-raw,rate=44100,channels=2,format=S16LE ! filesink location=/tmp/audio/mopidy.pcm
+
+[http]
+enabled = true
+hostname = 0.0.0.0
+port = 6680
+allowed_origins =
+
+[mpd]
+enabled = false
+
+[local]
+enabled = true
+media_dir = /music
+scan_timeout = 1000
+
+[stream]
+enabled = true
+protocols = http, https, mms, rtmp, rtsp
+
+[tunein]
+enabled = true
+
+[iris]
+enabled = true