refactor(app): compose atomic frame roots

Move the complete update/render construction graph into a typed Phase-8 owner, explicitly carry the content dependencies it consumes, and publish both roots through one exact lease. Extract lifecycle resource sampling and frame-owned late bindings so partial startup and shutdown withdraw the same generation without window callbacks.

Co-authored-by: Codex <codex@openai.com>

tests/AcDream.App.Tests/Rendering/WorldRenderFrameBuilderTests.cs

@@ -328,6 +328,12 @@ public sealed class WorldRenderFrameBuilderTests
     public void World_scene_uses_the_typed_builder_and_orchestrator_owns_its_local_composition()
     {
         string gameWindow = GameWindowSource();
+        string frameRoot = File.ReadAllText(Path.Combine(
+            FindRepoRoot(),
+            "src",
+            "AcDream.App",
+            "Composition",
+            "FrameRootComposition.cs"));
         string worldScene = File.ReadAllText(Path.Combine(
             FindRepoRoot(),
             "src",
@@ -357,11 +363,14 @@ public sealed class WorldRenderFrameBuilderTests
             "_passes.DrawFlatTerrain(",
             "NormalWorldDrawn: true");
         AssertAppearsInOrder(
-            gameWindow,
-            "var skyPesFrame = new AcDream.App.Rendering.SkyPesFrameController(",
+            frameRoot,
+            "var skyPesFrame = new SkyPesFrameController(",
             "var worldRenderFrameBuilder =",
-            "new AcDream.App.Rendering.RenderFrameOrchestrator(",
-            "_frameGraphs.Withdraw();",
+            "new RenderFrameOrchestrator(",
+            "d.FrameGraphs.PublishOwned(");
+        AssertAppearsInOrder(
+            gameWindow,
+            "publication.Dispose();",
             "new(\"equipped children\"",
             "new(\"effect network state\"",
             "new(\"audio\"",