feat: last run frontend (#21369)

The frontend of feat: Persist Variables for Enhanced Debugging Workflow (#20699).

Co-authored-by: jZonG <jzongcode@gmail.com>

web/app/components/workflow/panel/debug-and-preview/chat-wrapper.tsx

@@ -21,6 +21,8 @@ import {
 import { useStore as useAppStore } from '@/app/components/app/store'
 import { getLastAnswer, isValidGeneratedAnswer } from '@/app/components/base/chat/utils'
 import type { FileEntity } from '@/app/components/base/file-uploader/types'
+import { useEventEmitterContextContext } from '@/context/event-emitter'
+import { EVENT_WORKFLOW_STOP } from '@/app/components/workflow/variable-inspect/types'
 
 type ChatWrapperProps = {
   showConversationVariableModal: boolean
@@ -105,6 +107,12 @@ const ChatWrapper = (
     )
   }, [chatList, doSend])
 
+  const { eventEmitter } = useEventEmitterContextContext()
+  eventEmitter?.useSubscription((v: any) => {
+    if (v.type === EVENT_WORKFLOW_STOP)
+      handleStop()
+  })
+
   useImperativeHandle(ref, () => {
     return {
       handleRestart,