feat: 重构 RBAC1 角色权限模型

src/Domain/TakeoutSaaS.Domain/Identity/Repositories/IIdentityUserRepository.cs

@@ -28,4 +28,9 @@ public interface IIdentityUserRepository
     /// <param name="keyword">可选关键字（账号/名称）。</param>
     /// <param name="cancellationToken">取消标记。</param>
     Task<IReadOnlyList<IdentityUser>> SearchAsync(long tenantId, string? keyword, CancellationToken cancellationToken = default);
+
+    /// <summary>
+    /// 获取指定租户、用户集合对应的用户（只读）。
+    /// </summary>
+    Task<IReadOnlyList<IdentityUser>> GetByIdsAsync(long tenantId, IEnumerable<long> userIds, CancellationToken cancellationToken = default);
 }