feat: event store — persist domain events to Postgres event_log table via composite publisher

crates/worker/src/main.rs

@@ -33,6 +33,8 @@ async fn main() -> anyhow::Result<()> {
     adapters_nats::ensure_stream(&nats_client).await?;
     info!(nats_url = %config.nats_url, "NATS connected");
 
+    let event_store: Arc<dyn domain::ports::EventStore> =
+        Arc::new(adapters_postgres::PostgresEventStore::new(pool.clone()));
     let repos = Repos::new(pool);
     let file_storage = Arc::new(adapters_storage::LocalFileStorage::new(
         &config.storage_path,
@@ -41,8 +43,10 @@ async fn main() -> anyhow::Result<()> {
 
     // Publisher transport consumes a client clone; the consumer gets another.
     let pub_transport = adapters_nats::NatsTransport::new(nats_client.clone());
-    let event_pub: Arc<dyn domain::ports::EventPublisher> =
+    let nats_publisher: Arc<dyn domain::ports::EventPublisher> =
         Arc::new(event_transport::EventPublisherAdapter::new(pub_transport));
+    let event_pub: Arc<dyn domain::ports::EventPublisher> =
+        Arc::new(event_transport::CompositeEventPublisher::new(nats_publisher, event_store));
 
     let registry = Arc::new(build_plugin_registry(&repos, file_storage, sidecar_writer));
     let process_next = Arc::new(build_process_next_handler(&repos, registry, event_pub));