feat: support mark point for line chart

util.go

@@ -26,6 +26,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/dustin/go-humanize"
 	"github.com/wcharczuk/go-chart/v2"
 )
 
@@ -109,3 +110,15 @@ func toFloatPoint(f float64) *float64 {
 	v := f
 	return &v
 }
+func commafWithDigits(value float64) string {
+	decimals := 2
+	m := float64(1000 * 1000)
+	if value >= m {
+		return humanize.CommafWithDigits(value/m, decimals) + " M"
+	}
+	k := float64(1000)
+	if value >= k {
+		return humanize.CommafWithDigits(value/k, decimals) + " K"
+	}
+	return humanize.CommafWithDigits(value, decimals)
+}