- Reduce mobile media query button heights from 44px to 36px across all dashboard components
- Update mobile CSS tests (nav bar, board, modals, mission planning) to expect 36px touch targets
- Add CSS testing patterns to project memory for consistent test guidelines
- Export viewport utilities and add a new MobileNavBar component for core mobile navigation actions
- Integrate the bottom nav into App layout and simplify Header rendering when mobile navigation is active
- Add comprehensive mobile bottom-nav styling and spacing updates in the shared dashboard stylesheet
- Add component and CSS regression tests for mobile nav behavior, including escape-key interaction coverage
- Document the mobile bottom navigation UX and behavior in the dashboard README
