- Add eSceneType enum (General, Audio) replacing raw uint32_t in SceneRef
- Filter BuildSceneGraph to only include General scenes
- Skip transitions referencing non-general scenes in adjacency graph
- Rename SceneRef unknown fields to scenePosition/sceneRadius
- Zone parsing and Level improvements
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>