Summary Update.

RelayServer/Models/Server/ServerMembers.cs

@@ -2,9 +2,22 @@ using SurrealDb.Net.Models;
 
 namespace RelayServer.Models;
 
+/// <summary>
+/// Surreal record for the `server_members` table. Membership list.
+/// Drives DeliverToServerMembers (the fan-out target list for every chat message) and the
+/// authoritative ownership flag for PermissionService.
+/// </summary>
 public class ServerMembers : Record
 {
+    /// <summary>"users:keeper317" — references the Core users table by name convention.</summary>
     public required string UserId { get; set; }
+
+    /// <summary>When the user was added to this server.</summary>
     public required DateTime JoinedAt { get; set; }
+
+    /// <summary>
+    /// Authoritative owner flag. Owner gets unconditional Administrator via
+    /// PermissionService.IsServerOwnerAsync, independent of role assignments.
+    /// </summary>
     public bool IsOwner { get; set; }
-}
+}