* HATCHEDIT: refuse an explicit bad scale or angle before editing anything (#724)
run_hatchedit read `scale` and `angle` leniently (a non-positive scale or a
non-numeric value was skipped), so such a request reported success, added an
undo step and cleared the redo history, applied its valid companion property
or recreated the boundary. HATCH already refuses a non-positive scale. The
numbers are now checked first with the same size_param rule; `angle` must be
a number; absent and null still mean "leave it".
* Docs: update the progress docs for this change
---------
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
