Amphora Event Bus Redis

A Redis-based event bus module for Amphora CMS that enriches published messages with additional context. Compatible with Amphora v7.1.0. This is an alternative to the default in-memory or simple bus, providing persistence and cross-process communication via Redis. It uses the same CLAY_BUS_HOST environment variable as Amphora's default bus and respects topic namespaces. The module must be passed to Amphora's eventBus option. It is a small, focused package with minimal dependencies, suited for production deployments requiring reliable event distribution across multiple Amphora instances.