fix: allow super admin tenant-scoped role ops

src/Application/TakeoutSaaS.Application/Identity/Queries/RoleDetailQuery.cs

@@ -12,4 +12,9 @@ public sealed class RoleDetailQuery : IRequest<RoleDetailDto?>
     /// 角色 ID。
     /// </summary>
     public long RoleId { get; init; }
+
+    /// <summary>
+    /// 租户 ID（空则取当前上下文）。
+    /// </summary>
+    public long? TenantId { get; init; }
 }

src/Application/TakeoutSaaS.Application/Identity/Queries/SearchRolesQuery.cs

@@ -9,6 +9,11 @@ namespace TakeoutSaaS.Application.Identity.Queries;
 /// </summary>
 public sealed class SearchRolesQuery : IRequest<PagedResult<RoleDto>>
 {
+    /// <summary>
+    /// 指定查询的租户 ID（空则取当前上下文）。
+    /// </summary>
+    public long? TenantId { get; init; }
+
     public string? Keyword { get; init; }
     public int Page { get; init; } = 1;
     public int PageSize { get; init; } = 20;