feat(FR-2392): add multi-step async notification system (#6234)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: yomybaby

react/src/components/BAIMultiStepNotificationItem.tsx

@@ -5,6 +5,7 @@
 import { useWebUINavigate } from '../hooks';
 import { useBAINotificationState } from '../hooks/useBAINotification';
 import BAIGeneralNotificationItem from './BAIGeneralNotificationItem';
+import BAIMultiStepNotificationItem from './BAIMultiStepNotificationItem';
 import BAINodeNotificationItem from './BAINodeNotificationItem';
 import { MoreOutlined } from '@ant-design/icons';
 import {
@@ -137,6 +138,13 @@ const WEBUINotificationDrawer: React.FC<Props> = ({ ...drawerProps }) => {
               nodeFrgmt={item.node || null}
               showDate
             />
+          ) : item.multiStep ? (
+            <BAIMultiStepNotificationItem
+              notification={item}
+              onRetry={item.onRetry ?? undefined}
+              onCancel={item.onCancel ?? undefined}
+              showDate
+            />
           ) : (
             <BAIGeneralNotificationItem
               notification={item}