forked from 1b-agent/opencadstudio-upstream
* helpers::wcs_to_ucs — UCS inverse transform with zero call sites. * scene::Scene::compute_and_set_world_offset — never called; the load path uses the free function `compute_world_offset` directly. * tessellate::tessellate_mesh — never called; mesh tessellation goes through `solid3d_tess`, not the truck Shell/Solid path. * truck_tess::tess_to_mesh_model — orphaned with tessellate_mesh's removal. * MeshModel::WHITE / MeshModel::SELECTED — only used by the removed tessellate_mesh. * xattach::Step::FilePath variant — never constructed; XATTACH always enters through `with_path` after the file picker. Replaced the Step enum + prefilled_path field with flat `path` / `block_name` fields and dropped the unreachable text-input flow. Co-Authored-By: Claude Opus 4.7 <[email protected]>