fix(session): keep the maintenance sweeps and capabilities with the session owner

MediaBrowser.Controller/Session/ISessionManager.cs

@@ -278,7 +278,8 @@ namespace MediaBrowser.Controller.Session
         /// <param name="controllingSessionId">The controlling session identifier.</param>
         /// <param name="sessionId">The session identifier.</param>
         /// <param name="capabilities">The capabilities.</param>
-        void ReportCapabilities(string controllingSessionId, string sessionId, ClientCapabilities capabilities);
+        /// <returns>A task representing the operation.</returns>
+        Task ReportCapabilities(string controllingSessionId, string sessionId, ClientCapabilities capabilities);
 
         /// <summary>
         /// Reports the transcoding information.

MediaBrowser.Controller/Session/RoutedCapabilities.cs

@@ -0,0 +1,25 @@
+using MediaBrowser.Model.Session;
+
+namespace MediaBrowser.Controller.Session;
+
+/// <summary>
+/// A capabilities report for a session held by another instance, carried as a <see cref="PodMessage"/>.
+/// The calling instance has already authorized it.
+/// </summary>
+public sealed class RoutedCapabilities
+{
+    /// <summary>
+    /// The <see cref="PodMessage.Kind"/> this payload travels under.
+    /// </summary>
+    public const string Kind = "Capabilities";
+
+    /// <summary>
+    /// Gets or sets the session the report applies to.
+    /// </summary>
+    public string SessionId { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Gets or sets the reported capabilities.
+    /// </summary>
+    public ClientCapabilities? Capabilities { get; set; }
+}