add_mounting_hole, check_courtyard_overlaps and query_zones offered only mm/inch. Add mil so every unit enum is consistent (enforced by test_mil_unit_support). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
add_mounting_hole, check_courtyard_overlaps and query_zones offered only mm/inch. Add mil so every unit enum is consistent (enforced by test_mil_unit_support). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>