Fix unlabeled jugs in ChemVend (#29178)

* Spawn dummy entities on client for vending machine UI

* Asked sloth, and we kinda need this pr

---------

Co-authored-by: Vasilis <vasilis@pikachu.systems>

Content.Client/VendingMachines/UI/VendingMachineMenu.xaml.cs

@@ -4,10 +4,11 @@ using Robust.Client.AutoGenerated;
 using Robust.Client.GameObjects;
 using Robust.Client.Graphics;
 using Robust.Client.UserInterface.Controls;
-using Content.Client.Stylesheets;
 using Robust.Client.UserInterface.XAML;
 using Robust.Shared.Prototypes;
 using FancyWindow = Content.Client.UserInterface.Controls.FancyWindow;
+using Content.Shared.IdentityManagement;
+using Robust.Shared.Timing;
 
 namespace Content.Client.VendingMachines.UI
 {
@@ -15,6 +16,10 @@ namespace Content.Client.VendingMachines.UI
     public sealed partial class VendingMachineMenu : FancyWindow
     {
         [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+        [Dependency] private readonly IEntityManager _entityManager = default!;
+        [Dependency] private readonly IGameTiming _timing = default!;
+
+        private readonly Dictionary<EntProtoId, EntityUid> _dummies = [];
 
         public event Action<ItemList.ItemListSelectedEventArgs>? OnItemSelected;
         public event Action<string>? OnSearchChanged;
@@ -36,6 +41,22 @@ namespace Content.Client.VendingMachines.UI
             };
         }
 
+        protected override void Dispose(bool disposing)
+        {
+            base.Dispose(disposing);
+
+            // Don't clean up dummies during disposal or we'll just have to spawn them again
+            if (!disposing)
+                return;
+
+            // Delete any dummy items we spawned
+            foreach (var entity in _dummies.Values)
+            {
+                _entityManager.QueueDeleteEntity(entity);
+            }
+            _dummies.Clear();
+        }
+
         /// <summary>
         /// Populates the list of available items on the vending machine interface
         /// and sets icons based on their prototypes
@@ -72,11 +93,16 @@ namespace Content.Client.VendingMachines.UI
                 vendingItem.Text = string.Empty;
                 vendingItem.Icon = null;
 
-                var itemName = entry.ID;
+                if (!_dummies.TryGetValue(entry.ID, out var dummy))
+                {
+                    dummy = _entityManager.Spawn(entry.ID);
+                    _dummies.Add(entry.ID, dummy);
+                }
+
+                var itemName = Identity.Name(dummy, _entityManager);
                 Texture? icon = null;
                 if (_prototypeManager.TryIndex<EntityPrototype>(entry.ID, out var prototype))
                 {
-                    itemName = prototype.Name;
                     icon = spriteSystem.GetPrototypeIcon(prototype).Default;
                 }