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.Shared/Disposal/Unit/SharedDisposalTubeSystem.cs

@@ -0,0 +1,14 @@
+using Content.Shared.Disposal.Components;
+
+namespace Content.Shared.Disposal.Unit;
+
+public abstract class SharedDisposalTubeSystem : EntitySystem
+{
+    public virtual bool TryInsert(EntityUid uid,
+        DisposalUnitComponent from,
+        IEnumerable<string>? tags = default,
+        Tube.DisposalEntryComponent? entry = null)
+    {
+        return false;
+    }
+}