- Added GPS-aware empty state with location needed/gps off messaging
- Added GPS warning banner with 'enable location access' link in Navigate tab
- Show user's current location pin + accuracy circle on map when GPS available
- Enhanced destination search: GPS-aware filtering, badges for nav status
- Back button navigates to previous tab (or Map tab as fallback)
- Added navBackToPrevious() function with proper switchTab recursion avoidance
- Added CSS: .gps-warning, .gps-enable-link, .nav-route-info, .nav-route-item
- navigateToAsset() now goes to Nav tab even without GPS to show warning UI
- Improved search results: shows GPS on/off badge, disables non-navigable assets
- All navigation and smoke tests pass (5/5)
shawn
0aa9e1f0d8