优化结构

internal/service/system/security.go

@@ -55,6 +55,13 @@ func (s *SecurityService) ValidatePassword(ctx context.Context, password string)
 	if err != nil {
 		return err
 	}
+	return s.ValidatePasswordWithConfig(cfg, password)
+}
+
+func (s *SecurityService) ValidatePasswordWithConfig(cfg *system.SecurityConfig, password string) error {
+	if cfg == nil {
+		return errors.New("安全配置不可用")
+	}
 	if err := s.uc.ValidatePassword(cfg, password); err != nil {
 		return &PasswordPolicyError{Err: err}
 	}