Predict dumping (#32394)

* Predict dumping

- This got soaped really fucking hard.
- Dumping is predicted, this required disposals to be predicte.d
- Disposals required mailing (because it's tightly coupled), and a smidge of other content systems.
- I also had to fix a compnetworkgenerator issue at the same time so it wouldn't mispredict.

* Fix a bunch of stuff

* nasty merge

* Some reviews

* Some more reviews while I stash

* Fix merge

* Fix merge

* Half of review

* Review

* re(h)f

* lizards

* feexes

* feex

Content.Server/Containers/ThrowInsertContainerSystem.cs

@@ -1,4 +1,5 @@
 using Content.Server.Administration.Logs;
+using Content.Shared.Containers;
 using Content.Shared.Database;
 using Content.Shared.Popups;
 using Content.Shared.Throwing;
@@ -52,10 +53,3 @@ public sealed class ThrowInsertContainerSystem : EntitySystem
             _adminLogger.Add(LogType.Landed, LogImpact.Low, $"{ToPrettyString(args.Thrown)} thrown by {ToPrettyString(args.Component.Thrower.Value):player} landed in {ToPrettyString(ent)}");
     }
 }
-
-/// <summary>
-/// Sent before the insertion is made.
-/// Allows preventing the insertion if any system on the entity should need to.
-/// </summary>
-[ByRefEvent]
-public record struct BeforeThrowInsertEvent(EntityUid ThrownEntity, bool Cancelled = false);