feat: wire NATS event publisher into bootstrap + worker

- Both binaries connect to NATS on startup, ensure JetStream stream
- EventPublisherAdapter<NatsTransport> replaces LogEventPublisher
- nats_url config with default nats://localhost:4222
- Deleted bootstrap's LogEventPublisher (no longer needed)

crates/bootstrap/src/factory.rs

@@ -55,13 +55,15 @@ use presentation::{
 };
 
 use crate::config::Config;
-use crate::log_event_publisher::LogEventPublisher;
 use crate::log_sidecar_writer::LogSidecarWriter;
 
 pub async fn build_app(config: &Config) -> Result<Router> {
     let pool = connect(&config.database_url).await?;
     run_migrations(&pool).await?;
 
+    let nats_client = async_nats::connect(&config.nats_url).await?;
+    adapters_nats::ensure_stream(&nats_client).await?;
+
     // Identity
     let user_repo = Arc::new(PostgresUserRepository::new(pool.clone()));
     let hasher = Arc::new(BcryptPasswordHasher);
@@ -91,7 +93,9 @@ pub async fn build_app(config: &Config) -> Result<Router> {
     let batch_repo = Arc::new(PostgresJobBatchRepository::new(pool.clone()));
     let plugin_repo = Arc::new(PostgresPluginRepository::new(pool.clone()));
     let pipeline_repo = Arc::new(PostgresPipelineRepository::new(pool.clone()));
-    let event_publisher: Arc<LogEventPublisher> = Arc::new(LogEventPublisher);
+    let transport = adapters_nats::NatsTransport::new(nats_client);
+    let event_publisher: Arc<dyn domain::ports::EventPublisher> =
+        Arc::new(event_transport::EventPublisherAdapter::new(transport));
     let sidecar_writer: Arc<LogSidecarWriter> = Arc::new(LogSidecarWriter);
 
     // File storage