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>

src/AcDream.App/Input/OutboundInteractionQueue.cs

@@ -0,0 +1,41 @@
+namespace AcDream.App.Input;
+
+/// <summary>
+/// Orders input-originated item interactions after the local player's movement
+/// edge has been serialized for the same frame, but before inbound network
+/// dispatch.
+/// </summary>
+/// <remarks>
+/// Silk input callbacks arrive before the retail object phase. A movement-key
+/// release and a later Use press can therefore be observed in one frame even
+/// though the movement controller has not yet emitted the release packet.
+/// Draining here preserves that event order on the wire: the release is sent
+/// first, then the one-shot interaction. ACE otherwise interprets the later
+/// MoveToState as cancellation of the Use-created MoveTo chain.
+/// </remarks>
+public sealed class OutboundInteractionQueue
+{
+    private readonly Queue<Action> _pending = new();
+
+    public int Count => _pending.Count;
+
+    public void Enqueue(Action action)
+    {
+        ArgumentNullException.ThrowIfNull(action);
+        _pending.Enqueue(action);
+    }
+
+    /// <summary>
+    /// Drain only the actions present at the frame boundary. An action that
+    /// enqueues another action leaves it for the next frame instead of making
+    /// the current dispatch recursively unbounded.
+    /// </summary>
+    public void Drain()
+    {
+        int count = _pending.Count;
+        while (count-- > 0)
+            _pending.Dequeue().Invoke();
+    }
+
+    public void Clear() => _pending.Clear();
+}