fix：返回合约月份数据

models/response/chart_info/chart_info.go

@@ -37,6 +37,8 @@ type YData struct {
 	XEdbInfoIdList []int           `description:"对应X轴的指标id列表"`
 	EdbValMap      map[int]float64 `description:"指标与值的对应" json:"-"`
 	M              []int           `description:"对应开始日期的间隔值" json:"-"`
+	NameList       []string        `description:"每个值对应的名称"`
+	EnNameList     []string        `description:"每个值对应的英文名称"`
 }
 
 type CorrelationInfo struct {