fix(runtime): restore interaction completion ownership

Preserve prepublication local motion completion, require the PartArray enter-world lifecycle port, and balance deferred Use busy ownership across dispatch and cancellation. Reconcile the completed GameWindow connected gates and add regression coverage.

Co-authored-by: Codex <codex@openai.com>

src/AcDream.App/Composition/InteractionUiRuntimeSources.cs

@@ -169,6 +169,18 @@ internal sealed class DeferredSelectionUiAuthority
         target?.SendUse(guid);
     }
 
+    public void RequestUse(uint guid, ItemUseRequestReservation reservation)
+    {
+        ArgumentNullException.ThrowIfNull(reservation);
+        SelectionInteractionController? target;
+        lock (_gate)
+            target = !_deactivated ? _interactions : null;
+        if (target is null)
+            reservation.CancelBeforeDispatch();
+        else
+            target.RequestUse(guid, reservation);
+    }
+
     public void SendPickup(uint itemGuid, uint destinationContainerId, int placement)
     {
         SelectionInteractionController? target;