refactor(runtime): close simulation ownership

Move remote-motion construction, CreateObject vector initialization, final simulation-component retirement, and the combined J5 ownership ledger into Runtime. Delete App compatibility views and moved-state reconstruction while preserving the existing graphical projection and retail update order.

tests/AcDream.App.Tests/Streaming/StreamingFrameControllerTests.cs

@@ -422,7 +422,7 @@ public sealed class StreamingFrameControllerTests
         }
 
         internal LocalPlayerModeState Mode { get; } = new();
-        internal LocalPlayerControllerSlot Player { get; } = new();
+        internal RuntimeLocalPlayerMovementState Player { get; } = new();
         internal SessionSource Session { get; } = new();
         internal LiveWorldOriginState Origin { get; } = new();
         internal PlayerLandblockSource PlayerLandblock { get; } = new();