feat: expand station cards with detailed information and add live statistics endpoint

- Add `/stats/live` endpoint returning station count and latest price timestamp with 5-minute cache
- Transform StationCard into expandable component with click/keyboard interaction showing full details
- Display brand label, badges (24h/Supermarket/Motorway), fuel types, amenities, opening hours, and price delta vs average
- Add brand filter dropdown to StationList with dynamic brand extraction from results
- Calculate and display price comparison against filtered stations average
- Redesign map markers to simpler price display; move directions link to popup alongside station details
- Add "locate-me" button to SearchBar for geolocation trigger
- Show "Live" indicator with station count and last-update time on homepage hero
- Remove standalone directions link from marker HTML; consolidate in popup with click propagation handling
- Persist `avgPence` calculation across StationList and pass to cards for delta display
- Add `@iconify-json/lucide` dev dependency and register collection on app mount
- Stop click propagation on card action buttons (directions, remove)

routes/api.php

@@ -20,6 +20,8 @@ Route::get('/fuel-types', function () {
         ->values());
 });
 
+Route::get('/stats/live', [StatsController::class, 'live']);
+
 // Protected endpoints (API key required)
 Route::middleware(['throttle:60,1', VerifyApiKey::class])->group(function (): void {
     Route::get('/stations', [StationController::class, 'index']);