feat(import): import consumable item inventory

SVSim.EmulatedEntrypoint/Controllers/AdminController.cs

@@ -163,6 +163,25 @@ public class AdminController : SVSimController
             }
         }
 
+        if (request.Items is not null)
+        {
+            var wanted = request.Items
+                .GroupBy(i => i.ItemId)
+                .Select(g => g.First())
+                .ToList();
+            var ids = wanted.Select(i => i.ItemId).ToList();
+            var itemMaster = await _dbContext.Items
+                .Where(i => ids.Contains(i.Id))
+                .ToDictionaryAsync(i => i.Id);
+
+            viewer.Items.Clear();
+            foreach (var i in wanted)
+            {
+                if (!itemMaster.TryGetValue(i.ItemId, out var item)) continue; // unknown master id
+                viewer.Items.Add(new OwnedItemEntry { Item = item, Count = i.Count, Viewer = viewer });
+            }
+        }
+
         // Clone the 8 starter decks into the viewer when freshly created — workaround for a
         // client-side NRE in the deck-edit menu (DeckListUI.IsVisibleCreateNewButton at
         // decompile Wizard/DeckListUI.cs:316 unconditionally reads `_deckGroup.DeckFormat`, but