feat(ui): complete retail quick-slot input

Port global toolbar use/select/create actions, migrate the collapsed Ctrl-number bindings, and route them through a focused retained-UI controller. Preserve shortcut aliases as aliases across inventory and paperdoll drops with retail's neutral/accept/reject drag states, preventing physical item moves such as unwielding an equipped helmet.

Co-Authored-By: Codex <codex@openai.com>

src/AcDream.App/UI/ItemInteractionController.cs

@@ -144,6 +144,17 @@ public sealed class ItemInteractionController : IDisposable
     public bool IsPendingSource(uint itemGuid)
         => itemGuid != 0 && itemGuid == PendingSourceItem;
 
+    /// <summary>
+    /// Retail <c>ACCWeenieObject::IsOwnedByPlayer</c> projection shared with
+    /// toolbar shortcut creation. Ownership includes self, equipped items, and
+    /// arbitrarily nested carried containers.
+    /// </summary>
+    public bool IsOwnedByPlayer(uint itemGuid)
+        => _objects.Get(itemGuid) is { } item
+            && (item.ObjectId == _playerGuid()
+                || IsCarriedByPlayer(item)
+                || IsEquippedByPlayer(item));
+
     public bool IsCurrentTargetCompatible(uint targetGuid)
     {
         if (!IsTargetModeActive || targetGuid == 0) return false;