Feat: Fixed the issue where the begin operator parameters could not be submitted during debugging #3221 (#8539)

### What problem does this PR solve?

Feat: Fixed the issue where the begin operator parameters could not be
submitted during debugging #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/hooks/use-send-message.ts

@@ -11,6 +11,7 @@ export enum MessageEventType {
   Message = 'message',
   MessageEnd = 'message_end',
   WorkflowFinished = 'workflow_finished',
+  UserInputs = 'user_inputs',
 }
 
 export interface IAnswerEvent<T> {