PAct strict non-PM preprocess 20260517
8 GAPartNet ids with zero hits in local PartNet-Mobility by_category/*.meta.json. Full-parts view-0 masks use min_label_pixels=0, so visible small labels are preserved.
8 GAPartNet ids with zero hits in local PartNet-Mobility by_category/*.meta.json. Full-parts view-0 masks use min_label_pixels=0, so visible small labels are preserved.