test(chase): expect edge layer in graph child count

Made-with: Cursor

tests/stages/page_chase.test.ts

@@ -118,14 +118,15 @@ describe("chase stage skeleton", () => {
 
     scene.refreshView();
     const firstChildren = [...(scene as any).graphLayer.children];
-    expect(firstChildren.length).toBe(2);
+    expect(firstChildren.length).toBe(3);
 
     scene.refreshView();
     const secondChildren = [...(scene as any).graphLayer.children];
-    expect(secondChildren.length).toBe(2);
+    expect(secondChildren.length).toBe(3);
     expect(secondChildren[0]).not.toBe(firstChildren[0]);
     expect((firstChildren[0] as any).destroyed).toBe(true);
     expect((firstChildren[1] as any).destroyed).toBe(true);
+    expect((firstChildren[2] as any).destroyed).toBe(true);
   });
 
   it("init start entry routes to chase", () => {