feat(mobile): mobile-first driving layout, bottom-sheet dialogs, safe-area insets, and drawer controls

sw.js

@@ -1,13 +1,13 @@
 // Service Worker for FlockRadar Offline Driving & Live Updates
-const CACHE_NAME = 'flockradar-v8';
+const CACHE_NAME = 'flockradar-v9';
 const ASSETS_TO_CACHE = [
   './',
   './index.html',
-  './css/styles.css?v=8',
-  './js/app.js?v=8',
-  './js/auth.js?v=8',
-  './js/radar.js?v=8',
-  './data/portals.js?v=8',
+  './css/styles.css?v=9',
+  './js/app.js?v=9',
+  './js/auth.js?v=9',
+  './js/radar.js?v=9',
+  './data/portals.js?v=9',
   './manifest.json'
 ];