Pathfinder rework (#11452)

Content.Server/NPC/HTN/PrimitiveTasks/Operators/RandomOperator.cs

@@ -1,3 +1,4 @@
+using System.Threading;
 using System.Threading.Tasks;
 using Robust.Shared.Random;
 
@@ -22,7 +23,8 @@ public sealed class RandomOperator : HTNOperator
     /// </summary>
     [DataField("maxKey", required: true)] public string MaxKey = string.Empty;
 
-    public override async Task<(bool Valid, Dictionary<string, object>? Effects)> Plan(NPCBlackboard blackboard)
+    public override async Task<(bool Valid, Dictionary<string, object>? Effects)> Plan(NPCBlackboard blackboard,
+        CancellationToken cancelToken)
     {
         return (true, new Dictionary<string, object>()
         {