Create a default account from PLAYER_USER/PLAYER_PASSWORD

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

docker-compose.yml

@@ -10,6 +10,8 @@ services:
       OPENAUDIBLE_URL: http://172.16.16.106:8000
       OPENAUDIBLE_USER: ${OPENAUDIBLE_USER}          # put these in a .env file next to this one
       OPENAUDIBLE_PASSWORD: ${OPENAUDIBLE_PASSWORD}
+      PLAYER_USER: ${PLAYER_USER}                    # default account, created on first start
+      PLAYER_PASSWORD: ${PLAYER_PASSWORD}
     volumes:
       - player-data:/data    # accounts, sessions, listening progress