refactor: 重构服务层和仓库层

internal/errors/errors.go

@@ -47,6 +47,19 @@ var (
 	ErrStorageUnavailable = errors.New("存储服务不可用")
 	ErrUploadFailed       = errors.New("上传失败")
 
+	// Yggdrasil相关错误
+	ErrPasswordMismatch    = errors.New("密码错误")
+	ErrPasswordNotSet      = errors.New("未生成密码")
+	ErrInvalidServerID     = errors.New("服务器ID格式无效")
+	ErrSessionNotFound     = errors.New("会话不存在或已过期")
+	ErrSessionMismatch     = errors.New("会话验证失败")
+	ErrUsernameMismatch    = errors.New("用户名不匹配")
+	ErrIPMismatch          = errors.New("IP地址不匹配")
+	ErrInvalidAccessToken  = errors.New("访问令牌无效")
+	ErrProfileMismatch     = errors.New("selectedProfile与Token不匹配")
+	ErrUUIDRequired        = errors.New("UUID不能为空")
+	ErrCertificateGenerate = errors.New("生成证书失败")
+
 	// 通用错误
 	ErrBadRequest     = errors.New("请求参数错误")
 	ErrInternalServer = errors.New("服务器内部错误")