nti_event_bus

https://github.com/nueca-tech/nti_event_bus

NtiEventBus is a lightweight publish/subscribe event bus. Declare `domain.action` subscriptions in a small DSL, publish events, and fan them out to handler classes asynchronously via ActiveJob. The subscription registry is built once and deep-frozen for lock-free reads, so publishing adds no locking and no unbounded state.