Predict healing and bloodstream (#38690)

* initial commit

* reapply 38126

* fix rootable

* someone missed an important minus sign here

* try this

* fix

* fix

* reenable crit hits

* cleanup

* fix status time dirtying

* fix

* camelCase

Content.Server/Body/Components/MetabolizerComponent.cs

@@ -1,3 +1,4 @@
+using Content.Shared.Body.Components;
 using Content.Server.Body.Systems;
 using Content.Shared.Body.Prototypes;
 using Content.Shared.FixedPoint;