* fix(ui): respect native desktop scale under Auto UI scaling (#1278)
* UI scale: drop the now-unused monitor size, update docs and scorecard
Merge main; Auto no longer reads the monitor size, so remove the parameter and its
computation, simplify the test, and update ui-design.md and UI-217-9 to match.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>