chore(lint): 改进代码样式 (#2)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

portal/server.go

@@ -90,7 +90,6 @@ func GetChallengeURL(
 	username, domain string,
 	cIP net.IP,
 	timestamp int64) (string, error) {
-
 	v, err := query.Values(&GetChallengeReq{
 		Callback:  callback,
 		Username:  username + domain,
@@ -115,7 +114,6 @@ func GetLoginURL(
 	chksum,
 	info string,
 	timestamp int64) (string, error) {
-
 	v, err := query.Values(&GetPortalReq{
 		Callback:          callback,
 		Action:            "login",
@@ -160,7 +158,6 @@ func GetUserInfo(
 	password string,
 	cIP net.IP,
 	acid string) (string, error) {
-	
 	var b strings.Builder
 	err := json.NewEncoder(&b).Encode(&UserInfo{
 		Username: username + domain,
@@ -240,7 +237,6 @@ func (p *Portal) CheckSum(
 	acid string,
 	cIP net.IP,
 	info string) string {
-
 	var buf [20]byte
 	h := sha1.New()
 	_, _ = h.Write(helper.StringToBytes(challenge))