Pathfinder rework (#11452)

Content.Server/NPC/Pathfinding/PathfindingRequestEvent.cs

@@ -0,0 +1,11 @@
+using Robust.Shared.Map;
+
+namespace Content.Server.NPC.Pathfinding;
+
+public sealed class PathfindingRequestEvent : EntityEventArgs
+{
+    public EntityCoordinates Start;
+    public EntityCoordinates End;
+
+    // TODO: Need stuff like can we break shit, can we pry, collision mask, etc
+}