fix(interaction): close selection lifecycle review gaps

Bind queued actions and pending inventory requests to exact live incarnations, separate optimistic placement from authoritative responses, and serialize retail-style inventory ownership across UI surfaces.

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

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

@@ -53,4 +53,43 @@ public sealed class OutboundInteractionQueueTests
 
         Assert.False(invoked);
     }
+
+    [Fact]
+    public void Drain_ReentrantClearStopsTheCapturedBatch()
+    {
+        var queue = new OutboundInteractionQueue();
+        var actual = new List<string>();
+        queue.Enqueue(() =>
+        {
+            actual.Add("first");
+            queue.Clear();
+        });
+        queue.Enqueue(() => actual.Add("stale"));
+
+        queue.Drain();
+
+        Assert.Equal(new[] { "first" }, actual);
+        Assert.Equal(0, queue.Count);
+    }
+
+    [Fact]
+    public void Drain_ReentrantClearAndEnqueueDefersTheNewEpoch()
+    {
+        var queue = new OutboundInteractionQueue();
+        var actual = new List<string>();
+        queue.Enqueue(() =>
+        {
+            actual.Add("first");
+            queue.Clear();
+            queue.Enqueue(() => actual.Add("new-session"));
+        });
+        queue.Enqueue(() => actual.Add("stale"));
+
+        queue.Drain();
+        Assert.Equal(new[] { "first" }, actual);
+        Assert.Equal(1, queue.Count);
+
+        queue.Drain();
+        Assert.Equal(new[] { "first", "new-session" }, actual);
+    }
 }