Add PORT environment variable to bambuddy service configuration

komodo/automate/bambuddy/compose.yaml

@@ -12,6 +12,7 @@ services:
       - DATABASE_URL=postgresql://${PG_USER:-bambuddy}:${PG_PASS:?database password required}@postgres:5432/bambuddy
       - TRUSTED_FRAME_ORIGINS=http://homeassistant.local:8123
       - BAMBUDDY_EXTERNAL_ROOTS=/external/nas
+      - PORT=8870
     restart: unless-stopped
     # Docker SIGKILLs after 10s by default. Bambuddy stops well inside that,
     # but the headroom means a slow teardown (several virtual printers on a Pi)