forked from 1b-agent/opencadstudio-upstream
Compares every writable ATTDEF field through DWG and DXF. DWG round-trips the complete state; acadrust's DXF reader handles only eight group codes, so alignment, width factor, oblique angle, attribute flags, field length, generation flags, lock and text style reopen as defaults. Pinned by canary expectations and recorded in the ledger. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>