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.Client/Body/Systems/BloodStreamSystem.cs

@@ -0,0 +1,5 @@
+using Content.Shared.Body.Systems;
+
+namespace Content.Client.Body.Systems;
+
+public sealed class BloodstreamSystem : SharedBloodstreamSystem;