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/World/RuntimeEntityOwnershipTests.cs

@@ -244,6 +244,10 @@ public sealed class RuntimeEntityOwnershipTests
         Assert.Contains(
             viewFields,
             field => field.FieldType == typeof(IRuntimeInventoryView));
+        Assert.DoesNotContain(
+            viewFields,
+            field => field.FieldType == typeof(LiveEntityRuntime)
+                || field.FieldType == typeof(ClientObjectTable));
         Assert.DoesNotContain(
             typeof(CurrentGameRuntimeViewAdapter).GetNestedTypes(
                 BindingFlags.NonPublic),
@@ -271,6 +275,21 @@ public sealed class RuntimeEntityOwnershipTests
         Assert.DoesNotContain("_entityObjects.PublishEntity", liveSource);
         Assert.DoesNotContain("_directory.TryApply", liveSource);
         Assert.DoesNotContain("_directory.RemoveActive", liveSource);
+
+        string viewSource = File.ReadAllText(Path.Combine(
+            root,
+            "src",
+            "AcDream.App",
+            "Runtime",
+            "CurrentGameRuntimeViewAdapter.cs"));
+        Assert.Contains(
+            "_entityView.MaterializedCount",
+            viewSource,
+            StringComparison.Ordinal);
+        Assert.DoesNotContain(
+            "_entities.MaterializedCount",
+            viewSource,
+            StringComparison.Ordinal);
     }
 
     private static bool IsPresentationType(Type type)