fix(interaction): bind selection to live incarnations

Carry local WorldEntity identity through render hits, lighting pulses, and deferred movement actions so GUID reuse cannot target a replacement. Reset all session-owned selection and ItemHolder state and prevent combat auto-target during teardown.

src/AcDream.App/Rendering/Selection/RetailSelectionGeometryCache.cs

@@ -10,7 +10,7 @@ namespace AcDream.App.Rendering.Selection;
 /// Decodes the exact CPU geometry consumed by retail mouse selection. The broad
 /// sphere comes from the drawing-BSP root; polygons retain GfxObj DAT order.
 /// </summary>
-internal sealed class RetailSelectionGeometryCache
+internal sealed class RetailSelectionGeometryCache : IRetailSelectionGeometrySource
 {
     private readonly IDatReaderWriter _dats;
     private readonly object _datLock;