Docker Compose role preset profiles

The repository now includes a compose.yaml that maps Arthexis role presets to Compose profiles.

Service map by profile

• terminal: web only.
• control: web + redis + nginx.
• satellite: web + redis + nginx.
• watchtower: web + redis + nginx.

web always receives role-related environment variables so role validation can be satisfied without editing the Compose file:

• ARTHEXIS_ROLE_PRESET
• CELERY_BROKER_URL
• CELERY_RESULT_BACKEND
• OCPP_STATE_REDIS_URL
• CHANNEL_REDIS_URL
• BROKER_URL

Set ARTHEXIS_ROLE_PRESET to match the profile before startup (shell export or .env file), for example control, satellite, watchtower, or terminal.