feat: add StopsMap and WalkingDirections components for enhanced map functionality

- Implemented StopsMap component to display bus stops on a map using MapLibre GL.
- Integrated walking directions feature in WalkingDirections component to calculate routes from user location to selected bus stop.
- Added geo utility functions for coordinate validation and distance calculation.
- Created route grouping and stop filtering logic in routeGroups module.
- Developed custom hooks for managing stop routes with React Query.
- Added tests for routing and stop functionalities to ensure reliability.

vite.config.ts

@@ -27,6 +27,8 @@ export default defineConfig({
       },
       workbox: {
         globPatterns: ['**/*.{js,css,html,woff2,png,svg,webmanifest}'],
+        // The map is online-only and loads on demand; keep the offline shell small.
+        globIgnores: ['**/StopsMap-*', '**/maplibre-gl-worker-*'],
         navigateFallbackDenylist: [/^\/api\//],
         // API snapshots are kept in IndexedDB, keyed by city and stop.
         // The service worker only caches the application shell.