refactor(runtime): own interaction transactions

Move use throttling, appraisal identity, queued interactions, and exact post-arrival pickup state beneath RuntimeActionState. Keep App as the picker, movement, transport, and retained-presentation adapter while preserving retail send and UseDone ordering. Add reset, disposal, GUID-reuse, callback-reentrancy, and transport-failure coverage.

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

src/AcDream.App/Input/OutboundInteractionQueue.cs

@@ -1,47 +0,0 @@
-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();
-    private uint _clearEpoch;
-
-    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;
-        uint epoch = _clearEpoch;
-        while (count-- > 0 && epoch == _clearEpoch && _pending.Count > 0)
-            _pending.Dequeue().Invoke();
-    }
-
-    public void Clear()
-    {
-        _pending.Clear();
-        _clearEpoch++;
-    }
-}