refactor(render): compose render frame orchestrator

Move the accepted draw transaction and failure recovery behind typed frame-phase owners so GameWindow only supplies immutable frame input. Preserve retail draw order, make ImGui/bootstrap shutdown ownership explicit, and restore exact text-render GL state on failures.\n\nCo-authored-by: Codex <codex@openai.com>

src/AcDream.App/Rendering/PaperdollFramePresenter.cs

@@ -48,7 +48,7 @@ internal interface IPaperdollPoseApplicator
 /// The GL renderer remains a borrowed resource disposed by the existing window
 /// shutdown transaction.
 /// </summary>
-internal sealed class PaperdollFramePresenter
+internal sealed class PaperdollFramePresenter : IPrivatePaperdollFrame
 {
     private readonly IPaperdollDollRenderer _renderer;
     private readonly IPaperdollFrameView _view;