fix:图表生成时序调整

src/views/perfManage/kpiOverView/index.vue

@@ -261,15 +261,6 @@ const updateChart = () => {
     },
     tooltip: {
       trigger: 'axis',
-      formatter: function (params: any[]) {
-        const time = params[0].axisValue;
-        let result = `${time}<br/>`;
-        params.forEach(param => {
-          const value = param.value === 0 ? '0' : param.value;
-          result += `${param.marker}${param.seriesName}: ${value}<br/>`;
-        });
-        return result;
-      }
     },
     legend: {
       data: selectedKPIs.value.map(kpiId =>
@@ -365,8 +356,8 @@ onMounted(async () => {
       chart = echarts.init(container);
 
       if (kpiColumns.value.length > 0) {
-        updateChart();
         await fetchChartData();
+        updateChart();
       } else {
         console.warn('No KPI columns available after fetching');
       }