Make ItemSlots more verbose + AME proof of concept (#25779)

* Make itemslots more verbose with AME proof of concept.

* Remove unnecessary [DataField] strings and use null coalescing in whitelist checks.

* Change optional popup fields into LocId.

Content.Server/Ame/EntitySystems/AmeControllerSystem.cs

@@ -234,6 +234,8 @@ public sealed class AmeControllerSystem : EntitySystem
 
         UpdateUi(uid, controller);
 
+        _itemSlots.SetLock(uid, controller.FuelSlot, value);
+
         // Logging
         if (!HasComp<MindContainerComponent>(user))
             return;