fix(items): preserve wand stance and corpse use order

Keep active-combat AutoWield intent through ACE's pre-wield transition and queued trailing peace notice, while allowing explicit combat input to supersede it.

Queue one-shot item interactions until the frame's movement edge has been serialized, so a movement release cannot cancel ACE's server-side corpse approach callback.

Release build succeeds and all 5,890 runnable tests pass with five intentional skips.

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

tests/AcDream.App.Tests/Input/OutboundInteractionQueueTests.cs

@@ -0,0 +1,56 @@
+using AcDream.App.Input;
+
+namespace AcDream.App.Tests.Input;
+
+public sealed class OutboundInteractionQueueTests
+{
+    [Fact]
+    public void Drain_PreservesInputOrder()
+    {
+        var queue = new OutboundInteractionQueue();
+        var actual = new List<string>();
+
+        queue.Enqueue(() => actual.Add("use-corpse"));
+        queue.Enqueue(() => actual.Add("pickup-item"));
+
+        queue.Drain();
+
+        Assert.Equal(new[] { "use-corpse", "pickup-item" }, actual);
+        Assert.Equal(0, queue.Count);
+    }
+
+    [Fact]
+    public void Drain_ReentrantEnqueueWaitsForNextFrame()
+    {
+        var queue = new OutboundInteractionQueue();
+        var actual = new List<string>();
+        queue.Enqueue(() =>
+        {
+            actual.Add("first");
+            queue.Enqueue(() => actual.Add("next-frame"));
+        });
+
+        queue.Drain();
+
+        Assert.Equal(new[] { "first" }, actual);
+        Assert.Equal(1, queue.Count);
+
+        queue.Drain();
+
+        Assert.Equal(new[] { "first", "next-frame" }, actual);
+        Assert.Equal(0, queue.Count);
+    }
+
+    [Fact]
+    public void Clear_DropsPendingSessionActions()
+    {
+        var queue = new OutboundInteractionQueue();
+        bool invoked = false;
+        queue.Enqueue(() => invoked = true);
+
+        queue.Clear();
+        queue.Drain();
+
+        Assert.False(invoked);
+    }
+}