fix(bgpartymatter): 导出文件名和下载模板文件名根据 meetingType 区分党委会/所务会

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/views/bg/bgpartymatter/BgPartymatterList.vue

@@ -238,7 +238,7 @@
       },
     },
     exportConfig: {
-      name: props.ledgerTitle,
+      name: props.meetingType === 'office' ? '所务会' : '党委会',
       url: getExportUrl,
       params: getLedgerQueryParams,
     },
@@ -638,7 +638,7 @@
     const blob = new Blob([data]);
     const link = document.createElement('a');
     link.href = URL.createObjectURL(blob);
-    link.download = '党建议题-导入模板.xls';
+    link.download = props.meetingType === 'office' ? '所务会-导入模板.xls' : '党委会-导入模板.xls';
     link.click();
     URL.revokeObjectURL(link.href);
   }