Initial release: four tools, CLI + Python API for each.
extend— Voronoi-based polygon boundary extension, producing a complete coverage layer that fills gaps.match— fits a child polygon layer into a coarser parent/clip layer by largest-overlap assignment, then runsextend's pipeline per group.clean— detects and fixes coverage gaps/overlaps viaST_CoverageClean; detects (but never auto-fixes) slivers, reported separately for review.change— compares two versions of a polygon layer and classifies every unit as unchanged/renamed/modified/relocated/split/merge/complex/created/removed, via spatial overlap and optional code/name identity linking.
Full changelog: https://github.com/fieldmaps/topo-tools-py/blob/main/CHANGELOG.md