fix: 修复所有 golangci-lint 错误

- goimports: 修复 3 个文件的导入顺序
- ineffassign: 移除无效的变量初始化
- staticcheck SA9003: 修复空分支问题

server/service/job_exec_shell.go

@@ -194,7 +194,7 @@ func (r ShellJob) executeShellByLocal() {
 	}
 
 	now := time.Now()
-	var msg = ""
+	var msg string
 	log.Debug("run local command", log.String("cmd", metadataShell.Shell))
 	output, outerr, err := utils.Exec(metadataShell.Shell)
 	if err != nil {

server/service/migrate.go

@@ -31,8 +31,8 @@ type migrateService struct {
 }
 
 func (s *migrateService) Migrate() error {
-	var needMigrate = false
-	var localVersion = ""
+	var needMigrate bool
+	var localVersion string
 	property, err := repository.PropertyRepository.FindByName(context.Background(), "version")
 	if err != nil {
 		if !errors.Is(err, gorm.ErrRecordNotFound) {

server/service/user.go

@@ -172,11 +172,10 @@ func (service userService) GetUserLoginToken(c context.Context, username string)
 }
 
 func (service userService) OnEvicted(token string, value interface{}) {
-
-	if strings.HasPrefix(token, "forever") {
-	} else {
+	if !strings.HasPrefix(token, "forever") {
 		err := service.LogoutByToken(token)
 		if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+			log.Warn("logout by token failed", log.NamedError("err", err))
 		}
 	}
 }