The CL-707 config now declares sections, sentence-case labels and ranges,
so its dialog matches the CI Fiber one instead of the generic PropertyGrid.
The sectioned editor gains what the CL-707 config needs: optional (nullable)
numbers behind an enable box, editable tables for lists of simple records,
and a text field that suggests values from a table column (Selected library).
"Lead-in arc line 2 feedrate" is relabeled "Lead-in arc feedrate", which is
what #127 drives.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>