fix(home): 新用户无孩子时静默跳过能量概览请求，避免弹出memberId为空提示

cfc-frontend/pages/index-home/index.vue

@@ -589,8 +589,9 @@ export default {
       this.loadChallenges()
     },
     loadEnergyOverview: function() {
+      var memberId = this.currentChildId || uni.getStorageSync('currentMemberId')
+      if (!memberId) return
       var self = this
-      var memberId = this.currentChildId || uni.getStorageSync('currentMemberId') || undefined
       getEnergyOverview(memberId).then(function(res) {
         if (res && res.data) {
           self.energyDimensions = res.data.dimensions || []