Pulling rework (#20906)

* Pulling rework

Fixing up the FOUR systems managing pulling, all the shitcode, and also making it nicer ingame.

* More pulling cleanup

* stats

* More cleanup

* First draft

* More pulling

* weh

* Fix puller

* Pulling working

* Fix merge

* Dunked

* Self-merge time

Content.Shared/Movement/Pulling/Events/AttemptStopPullingEvent.cs

@@ -0,0 +1,10 @@
+namespace Content.Shared.Pulling.Events;
+
+/// <summary>
+/// Raised when a request is made to stop pulling an entity.
+/// </summary>
+public record struct AttemptStopPullingEvent(EntityUid? User = null)
+{
+    public readonly EntityUid? User = User;
+    public bool Cancelled;
+}