The Rot Start, Rot End and Step columns showed the drawing's radian
constraints as-is, so users had to type 1.5708 for 90 degrees. The grid now
shows and accepts degrees; rows keep the radian values, so an unedited row
passes the drawing's limits to the engine without a conversion round trip.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
