The Up/Down stepping of #357 now serves every numeric field through one
helper: num_field (lengths, in their unit) and plain/mixed fields
(degrees, percent, counts, at their precision: a count ignores the
Ctrl/Cmd tenth), as in Illustrator's panels and dialogs. After a step
the new value is selected, so typing replaces it. The select-all code
the dialog focus and focus/double-click already duplicated becomes one
helper, and the tests move to tests_numfields.rs with its field harness
(which can now run with the window unfocused). ROADMAP.md notes it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
bflatasticandClaude Opus 5.5
256e938fff