ores.eventing

ores.eventing provides an in-process publish/subscribe event bus for decoupled communication between ORE Studio components. It defines type-safe event traits, RAII subscription handles, and entity-change events. A PostgreSQL LISTEN/NOTIFY bridge (postgres_event_source) translates database notifications into typed in-process events, enabling services to react to cross-service state changes without polling.

• Published domain events from any component calling event_bus::publish.
• PostgreSQL NOTIFY payloads forwarded by postgres_event_source.

• Type-safe callbacks delivered to registered subscribers.
• RAII subscription handles that unsubscribe on destruction.

• include/ores.eventing/domain/ — event types, traits, entity change events.
• include/ores.eventing/service/ — event_bus, postgres_event_source.

• ores.database — postgres_listener_service for LISTEN/NOTIFY.
• ores.logging — structured logging.

• Eventing Pipeline — end-to-end walkthrough from pg_notify to Qt markAsStale