change delimeter

pkg/lib-helper/lib-helper.go

@@ -25,7 +25,7 @@ func Sort(sort string, tx *gorm.DB) *gorm.DB {
 
 	pairs := strings.Split(sort, ",")
 	for _, pair := range pairs {
-		parts := strings.Split(strings.TrimSpace(pair), "=")
+		parts := strings.Split(strings.TrimSpace(pair), ":")
 		if len(parts) != 2 {
 			continue // skip invalid format
 		}