debug: add INFO logging to ensure_stream and remote_actor_posts_handler

crates/adapters/nats/src/lib.rs

@@ -39,12 +39,17 @@ pub async fn ensure_stream(client: &async_nats::Client) -> Result<(), DomainErro
     // Try to update first (covers the case where stream exists with stale subjects).
     // Falls back to create if the stream doesn't exist yet.
     match js.update_stream(stream_config()).await {
-        Ok(_) => Ok(()),
-        Err(_) => js
-            .get_or_create_stream(stream_config())
-            .await
-            .map(|_| ())
-            .map_err(|e| DomainError::Internal(format!("JetStream stream setup failed: {e}"))),
+        Ok(_) => {
+            tracing::info!(subjects = ?STREAM_SUBJECTS, "JetStream stream updated");
+            Ok(())
+        }
+        Err(e) => {
+            tracing::warn!("JetStream stream update failed ({e}), falling back to get_or_create");
+            js.get_or_create_stream(stream_config())
+                .await
+                .map(|_| ())
+                .map_err(|e| DomainError::Internal(format!("JetStream stream setup failed: {e}")))
+        }
     }
 }