首次提交：初始化项目代码

internal/domain/auth/repository/user_repository.go

@@ -0,0 +1,21 @@
+package repository
+
+import "cloudnest/internal/domain/auth/entity"
+
+// UserRepository defines the interface for user data access operations.
+// UserRepository 定义了用户数据访问操作的接口。
+//
+// This interface follows the Dependency Inversion Principle (DIP),
+// where the application layer depends on this abstraction rather than concrete implementations.
+//
+// 此接口遵循依赖倒置原则（DIP），应用层依赖于这个抽象而非具体实现。
+type UserRepository interface {
+	FindByUsername(username string) (*entity.User, error)
+	FindByUserCode(userCode string) (*entity.User, error)
+	FindByEmail(email string) (*entity.User, error)
+	Create(user *entity.User) error
+	FindByID(id uint) (*entity.User, error)
+	UpdateStorageUsed(userCode string, size int64) error
+	UpdateProfile(userCode, email, phone, nickname string) error
+	UpdatePassword(userCode, newPassword string) error
+}