a

src/domain/notifications/push.rs

@@ -67,8 +67,10 @@ impl PushSender {
             VapidSignatureBuilder::from_pem_no_sub(std::io::Cursor::new(&self.private_key))
                 .map_err(|e| crate::error::AppError::Internal(e.to_string()))?;
 
+        let mut builder = builder.add_sub_info(&subscription_info);
+        builder.add_claim("sub", "mailto:pavel@flegr.me");
+
         let vapid_signature = builder
-            .add_sub_info(&subscription_info)
             .build()
             .map_err(|e| crate::error::AppError::Internal(e.to_string()))?;
 

src/domain/tasks.rs

@@ -170,9 +170,12 @@ pub async fn execute_agent_run(
             };
 
             tokio::spawn(async move {
-                let _ = sender
+                if let Err(e) = sender
                     .send_notification(&sub_data, &format!("Task Completed: {}", status), &goal)
-                    .await;
+                    .await
+                {
+                    tracing::error!("Failed to send notification in background task: {}", e);
+                }
             });
         }
     }