- Ops nav now uses Wrench (was Settings2, collided with Settings)
- aria-current on active nav link, aria-label on primary nav
- mobile drawer: role=dialog/aria-modal, Escape to close, body
scroll lock, focus moves into drawer and back to the menu button
- larger touch targets on the menu open/close buttons
- sidebar logo uses the shared BrandMark instead of an ad-hoc {hs}
- skip-to-content link added to the app layout