feat(web): agent support deep thinking

web/src/views/ApplicationConfig/TestChat/index.tsx

@@ -2,7 +2,7 @@
  * @Author: ZhaoYing 
  * @Date: 2026-03-13 17:27:52 
  * @Last Modified by: ZhaoYing
- * @Last Modified time: 2026-03-26 15:35:13
+ * @Last Modified time: 2026-03-31 16:04:15
  */
 import { type FC, useState, useRef, useEffect } from 'react'
 import { useTranslation } from 'react-i18next'
@@ -171,6 +171,7 @@ const TestChat: FC<TestChatProps> = ({
           ...lastMsg,
           content: lastMsg.content + content,
           meta_data: {
+            ...(lastMsg.meta_data || {}),
             audio_url: audio_url || lastMsg.meta_data?.audio_url,
             audio_status: audio_status || lastMsg.meta_data?.audio_status,
             citations: citations || lastMsg.meta_data?.citations
@@ -180,6 +181,24 @@ const TestChat: FC<TestChatProps> = ({
       return newList
     })
   }
+  const updateAssistantReasoningMessage = (content: string) => {
+    if (!content) return
+    if (streamLoading) setStreamLoading(false)
+    setChatList(prev => {
+      const newList = [...prev]
+      const lastMsg = newList[newList.length - 1]
+      if (lastMsg?.role === 'assistant') {
+        newList[newList.length - 1] = {
+          ...lastMsg,
+          meta_data: {
+            ...(lastMsg.meta_data || {}),
+            reasoning_content: (lastMsg.meta_data?.reasoning_content || '') + content
+          }
+        }
+      }
+      return newList
+    })
+  }
 
   const updateErrorAssistantMessage = (message_length: number) => {
     if (message_length > 0) return
@@ -273,6 +292,10 @@ const TestChat: FC<TestChatProps> = ({
         case 'start':
           if (conversation_id && conversationId !== conversation_id) setConversationId(conversation_id)
           break
+        case 'reasoning':
+          updateAssistantReasoningMessage(content)
+          if (conversation_id && conversationId !== conversation_id) setConversationId(conversation_id)
+          break
         case 'message':
           updateAssistantMessage(content)
           if (conversation_id && conversationId !== conversation_id) setConversationId(conversation_id)