n8n running in queue mode (EXECUTIONS_MODE=queue): main instance for the
editor/webhooks, a scalable pool of workers (deploy.replicas driven by the
N8N_WORKER_REPLICAS env var), Redis (Bull) as the queue broker and
PostgreSQL as the database. Pinned to the current stable n8nio/n8n:2.30.4.
Closes#455
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>