- Add useBreakpoint hook for responsive breakpoint detection
- Add MobileBottomNav component for mobile navigation
- Update ClinicalSidebar with tablet icon-only mode and tooltips
- Update PatientBanner with mobile minimal mode and overflow menu
- Update PMRInterface to handle responsive layouts and mobile search
- Add mobile card layouts to MedicationsView, ProblemsView,
InvestigationsView, and DocumentsView
- Desktop: 220px sidebar, full banner, tables
- Tablet: 56px icon sidebar, condensed banner, scrollable tables
- Mobile: Bottom nav, minimal banner, card layouts, search bar