更新管理员相关接口

cloudprint-backend/internal/repository/admin_repository.go

@@ -47,3 +47,23 @@ func (r *AdminRepository) GetByUsername(ctx context.Context, username string) (*
 func (r *AdminRepository) Update(ctx context.Context, admin *model.Admin) error {
 	return r.db.WithContext(ctx).Save(admin).Error
 }
+
+func (r *AdminRepository) Delete(ctx context.Context, id int32) error {
+	return r.db.WithContext(ctx).Delete(&model.Admin{}, id).Error
+}
+
+func (r *AdminRepository) List(ctx context.Context, page, pageSize int) ([]model.Admin, int64, error) {
+	var admins []model.Admin
+	var total int64
+
+	if err := r.db.WithContext(ctx).Model(&model.Admin{}).Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	offset := (page - 1) * pageSize
+	if err := r.db.WithContext(ctx).Offset(offset).Limit(pageSize).Find(&admins).Error; err != nil {
+		return nil, 0, err
+	}
+
+	return admins, total, nil
+}