fix: use correct i18n keys for data export step description in template list

The generateStepDescription function in WorkflowTemplateList was mapping
export_review and export_execute to the same i18n keys as sql_review and
sql_execute, causing data export templates to display "审核节点" and
"执行上线" instead of "导出审批" and "导出执行确认" in the step
description column. Fix by mapping to dataExport-specific i18n keys.

Author: LordofAvernus

packages/sqle/src/page/WorkflowTemplate/WorkflowTemplateList/index.tsx

@@ -42,8 +42,8 @@ const WorkflowTemplateList: React.FC = () => {
     const stepTypeNameMap: Record<string, string> = {
       sql_review: t('workflowTemplate.progressConfig.review.title'),
       sql_execute: t('workflowTemplate.progressConfig.exec.title'),
-      export_review: t('workflowTemplate.progressConfig.review.title'),
-      export_execute: t('workflowTemplate.progressConfig.exec.title')
+      export_review: t('workflowTemplate.dataExport.reviewTitle'),
+      export_execute: t('workflowTemplate.dataExport.execTitle')
     };
     return steps
       .map((step) => stepTypeNameMap[step.type ?? ''] ?? step.type ?? '')