ui.wheel injects a mouse-wheel / trackpad scroll at a window point (the
control channel had no scroll input). perf_probe runs the real UI
headless, opens a document and times the frames that handle typing,
scrolling, zooming, ribbon tabs and resizes (numbers only).
Co-authored-by: przemek-arch <263159043+przemek-arch@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
