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/Disposal/Unit/BeingDisposedSystem.cs

@@ -0,0 +1,41 @@
+using Content.Server.Atmos.EntitySystems;
+using Content.Server.Body.Systems;
+
+namespace Content.Server.Disposal.Unit;
+
+public sealed class BeingDisposedSystem : EntitySystem
+{
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<BeingDisposedComponent, InhaleLocationEvent>(OnInhaleLocation);
+        SubscribeLocalEvent<BeingDisposedComponent, ExhaleLocationEvent>(OnExhaleLocation);
+        SubscribeLocalEvent<BeingDisposedComponent, AtmosExposedGetAirEvent>(OnGetAir);
+    }
+
+    private void OnGetAir(EntityUid uid, BeingDisposedComponent component, ref AtmosExposedGetAirEvent args)
+    {
+        if (TryComp<DisposalHolderComponent>(component.Holder, out var holder))
+        {
+            args.Gas = holder.Air;
+            args.Handled = true;
+        }
+    }
+
+    private void OnInhaleLocation(EntityUid uid, BeingDisposedComponent component, InhaleLocationEvent args)
+    {
+        if (TryComp<DisposalHolderComponent>(component.Holder, out var holder))
+        {
+            args.Gas = holder.Air;
+        }
+    }
+
+    private void OnExhaleLocation(EntityUid uid, BeingDisposedComponent component, ExhaleLocationEvent args)
+    {
+        if (TryComp<DisposalHolderComponent>(component.Holder, out var holder))
+        {
+            args.Gas = holder.Air;
+        }
+    }
+}