DIMLINEAR/ALIGNED/RADIUS/DIAMETER/ANGULAR/ARC/ORDINATE/CONTINUE/BASELINE, QDIM, MLEADER, LEADER;
HATCH/GRADIENT/BOUNDARY/REGION with pick-point boundary tracing (planar face walk with islands);
BLOCK/INSERT/ATTDEF/ATTEDIT/WBLOCK/PURGE/BATTMAN; dimension text gaps and horizontal text;
DXF header writer whitelist (correct group codes).
Co-Authored-By: Claude Opus 5.5 <[email protected]>