Add endpoint for getting playlists by id (#12697)

MediaBrowser.Model/Dto/PlaylistDto.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using MediaBrowser.Model.Entities;
+
+namespace MediaBrowser.Model.Dto;
+
+/// <summary>
+/// DTO for playlists.
+/// </summary>
+public class PlaylistDto
+{
+    /// <summary>
+    /// Gets or sets a value indicating whether the playlist is publicly readable.
+    /// </summary>
+    public bool OpenAccess { get; set; }
+
+    /// <summary>
+    /// Gets or sets the share permissions.
+    /// </summary>
+    public required IReadOnlyList<PlaylistUserPermissions> Shares { get; set; }
+
+    /// <summary>
+    /// Gets or sets the item ids.
+    /// </summary>
+    public required IReadOnlyList<Guid> ItemIds { get; set; }
+}