fix: casbin gorm-adapter has no sqlite3 support

Signed-off-by: closetool <c299999999@qq.com>

server/service/sys_user.go

@@ -10,7 +10,6 @@ import (
 	"gorm.io/gorm"
 )
 
-
 //@author: [piexlmax](https://github.com/piexlmax)
 //@function: Register
 //@description: 用户注册
@@ -125,8 +124,8 @@ func FindUserById(id int) (err error, user *model.SysUser) {
 
 func FindUserByUuid(uuid string) (err error, user *model.SysUser) {
 	var u model.SysUser
-	if err = global.GVA_DB.Where("`uuid` = ?", uuid).First(&u).Error; err != nil{
+	if err = global.GVA_DB.Where("`uuid` = ?", uuid).First(&u).Error; err != nil {
 		return errors.New("用户不存在"), &u
 	}
 	return nil, &u
-}
+}