forked from 1b-agent/opencadstudio-upstream
points is canonical; the host derives the point counts and refreshes the end/tick/label projections with sync_display_fields when it changes, and validates that style and view-representation references are existing class objects. The lifecycle test passes every gate in DWG; DXF reopens the symbol as an unknown entity because cadcodec dispatches SECTIONLINE only inside blocks (pinned by a canary and already in the cadcodec write-up). Co-Authored-By: Claude Sonnet 5 <[email protected]>