HandsSystem Refactor (#38438)

* checkpoint

* pt 2

* pt... i forgot

* pt 4

* patch

* More test fixes

* optimization!!!

* the REAL hand system

* fix RetractableItemActionSystem.cs oversight

* the review

* test

* remove test usage of body prototype

* Update Content.IntegrationTests/Tests/Interaction/InteractionTest.cs

Co-authored-by: Tayrtahn <tayrtahn@gmail.com>

* hellcode

* hellcode 2

* Minor cleanup

* test

* Chasing the last of the bugs

* changes

---------

Co-authored-by: Tayrtahn <tayrtahn@gmail.com>

Content.Client/SubFloor/TrayScannerSystem.cs

@@ -68,11 +68,15 @@ public sealed class TrayScannerSystem : SharedTrayScannerSystem
 
         foreach (var hand in _hands.EnumerateHands(player.Value))
         {
-            if (!scannerQuery.TryGetComponent(hand.HeldEntity, out var heldScanner) || !heldScanner.Enabled)
+            if (!_hands.TryGetHeldItem(player.Value, hand, out var heldEntity))
+                continue;
+
+            if (!scannerQuery.TryGetComponent(heldEntity, out var heldScanner) || !heldScanner.Enabled)
                 continue;
 
             range = MathF.Max(heldScanner.Range, range);
             canSee = true;
+            break;
         }
 
         inRange = new HashSet<Entity<SubFloorHideComponent>>();