forked from 1b-agent/opencadstudio-upstream
Arc ribbon default + icon + dropdown order set to 3-Point. New ARC_CONT: tangent-continuing arc from the last line/arc endpoint, pick end only; Ctrl flips direction. Exit anchor recorded on commit (disambiguated by last pick) so chaining continues from the correct end. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>