fix: include full conversation details in agent log CSV export (#17291)

web/src/locales/en.ts

@@ -3407,6 +3407,9 @@ Important structured information may include: names, dates, locations, events, k
       success: 'Success',
       failed: 'Failed',
       logTitle: 'Title',
+      conversationDetail: 'Conversation detail',
+      user: 'User',
+      assistant: 'Assistant',
     },
     llmTools: {
       bad_calculator: {

web/src/locales/zh.ts

@@ -2083,6 +2083,9 @@ NER：使用 spaCy NER 和基于规则的关键词提取来抽取实体和关系
       agents: '智能体',
       id: 'ID',
       logTitle: '标题',
+      conversationDetail: '对话详情',
+      user: '用户',
+      assistant: '助手',
       state: '状态',
       number: '轮数',
       latestDate: '最新日期',

web/src/pages/agents/hooks/use-export-agent-log.ts

@@ -20,11 +20,26 @@ export const useExportAgentLogToCSV = () => {
   const { id: canvasId } = useParams();
   const { exportLogs, loading } = useExportAgentLog();
 
+  const formatConversation = (item: IAgentLogResponse): string => {
+    if (!item.message?.length) {
+      return '';
+    }
+
+    const lines = item.message.map((msg) => {
+      const role =
+        msg.role === 'assistant' ? t('flow.assistant') : t('flow.user');
+      return `${role}: ${msg.content ?? ''}`;
+    });
+
+    return lines.join('\n');
+  };
+
   const convertToCSV = (data: IAgentLogResponse[]) => {
     const headers = [
       t('flow.id'),
       t('flow.userId'),
       t('flow.logTitle'),
+      t('flow.conversationDetail'),
       t('flow.state'),
       t('flow.number'),
       t('flow.latestDate'),
@@ -36,6 +51,7 @@ export const useExportAgentLogToCSV = () => {
       item.id,
       item.user_id,
       item.message?.length ? item.message[0]?.content : '',
+      formatConversation(item),
       item.errors ? t('flow.failed') : t('flow.success'),
       item.round,
       item.update_date,