additive (additiveSublods): "LOD {loaded}/{total}" with a ⏳ while
refinement is in progress and a residency dot (● cached / ◌ streaming).
Renders a structural slot even before the first provider poll so the
incremental patcher (updateSceneGraphBadges) can fill it in-place.
Returns '' for nodes with no LOD dimension.
Render the live LOD-progress chip for a node, driven by the LODProgressState snapshot:
kind=lod): "L{active+1}/{count}" active-level chip.additiveSublods): "LOD {loaded}/{total}" with a ⏳ while refinement is in progress and a residency dot (● cached / ◌ streaming). Renders a structural slot even before the first provider poll so the incremental patcher (updateSceneGraphBadges) can fill it in-place. Returns''for nodes with no LOD dimension.