fix: PWA improvements — clean up SW, fix chin bar, add shortcuts, improve mobile support

- Remove dead precache manifest from SW (no fetch handler to consume it)
- Set empty globPatterns in vite-plugin-pwa config
- Fix bottom chin bar padding: use scaled safe-area token instead of raw inset
- Add 'New Session' PWA shortcut (client + server manifest)
- Add PWA meta tags to mobile.html (manifest, Apple icons, theme-color)
- Fix static site.webmanifest: add id/scope, correct description
- Remove duplicate apple-mobile-web-app-title from index.html
- Move SW registration to module scope (earlier, no window.load delay)
- Update manifest route tests for new shortcut order

packages/web/vite.config.ts

@@ -73,10 +73,10 @@ export default defineConfig({
       injectRegister: false,
       manifest: false,
       injectManifest: {
-        globPatterns: ['**/*.{js,css,html,ico,png,svg,woff,woff2,ttf,otf,eot}'],
-        // iOS Safari/PWA is much more reliable with a classic (non-module) SW bundle.
+        // No precache — the SW has no fetch handler. Only the IIFE bundle
+        // is produced so vite-plugin-pwa can build the registration script.
+        globPatterns: [],
         rollupFormat: 'iife',
-        // We already keep a custom manifest in index.html
         injectionPoint: undefined,
       },
       devOptions: {