refactor(runtime): own teleport destination correlation

src/AcDream.Runtime/GameRuntimeViews.cs

@@ -92,6 +92,23 @@ public enum RuntimePortalKind
     Portal,
 }
 
+/// <summary>
+/// Immutable, presentation-independent destination from one canonical
+/// accepted local-player Position packet. The frame remains cell-local;
+/// graphical hosts may translate it into their current render origin, while
+/// headless hosts consume the same full retail cell identity directly.
+/// </summary>
+public readonly record struct RuntimeTeleportDestination(
+    uint EntityGuid,
+    ushort InstanceSequence,
+    ushort PositionSequence,
+    ushort TeleportSequence,
+    ushort ForcePositionSequence,
+    Position Position)
+{
+    public uint CellId => Position.ObjCellId;
+}
+
 public readonly record struct RuntimeDestinationReadiness(
     long Generation,
     uint DestinationCell,