- carry MeshRenderer renderLayer through scene extraction into VisibleRenderItem
- extend native and managed FilteringSettings with renderLayerMask support
- let RenderObjectsRendererFeature author layer-filtered object draws
- add a core RenderQueueRange helper for managed scene draw filtering
- let FilteringSettings and RenderObjectsRendererFeature consume queue ranges directly
- wire the new authoring path into probes and project-side usage
- bridge renderer list descriptors into ScriptableRenderContext scene draw calls
- reuse DrawObjectsPass across Universal and project custom renderers
- add RenderObjectsRendererFeature for package-level object draw extension
