fix: 修复组态未选择时直接访问

@@ -57,6 +57,8 @@ watch(
   () => props.chartConfig.option.dataset,
   (newData: string) => {
     const { dataset, publicId, organizationId, platform, isShare } = props.chartConfig.option as typeof typeOption
+    
+    if(!dataset) return
     iframeLink.value = createScadaPageLink({ id: dataset, platform, publicId, organizationId, }, isShare ? ScadaModeEnum.SHARE : ScadaModeEnum.LIGHTBOX, false)
   },
   {