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/src/main.tsx

@@ -63,17 +63,16 @@ const runWhenDocumentCanRegisterServiceWorker = (task: () => void): void => {
 };
 
 const registerPwaServiceWorker = (): void => {
-  runWhenDocumentCanRegisterServiceWorker(() => {
-    try {
-      registerSW({
-        onRegisterError(error: unknown) {
-          console.warn('[PWA] service worker registration skipped:', error);
-        },
-      });
-    } catch (error) {
-      console.warn('[PWA] service worker registration skipped:', error);
-    }
-  });
+  if (!canUseServiceWorker()) return;
+  try {
+    registerSW({
+      onRegisterError(error: unknown) {
+        console.warn('[PWA] service worker registration skipped:', error);
+      },
+    });
+  } catch (error) {
+    console.warn('[PWA] service worker registration skipped:', error);
+  }
 };
 
 const unregisterDevelopmentServiceWorkers = (): void => {

packages/web/src/sw.ts

@@ -1,16 +1,11 @@
 /// <reference lib="webworker" />
 
-// NOTE: keep the Workbox injection point so vite-plugin-pwa can build.
-// We intentionally do not use Workbox runtime helpers here: iOS Safari can be
-// fragile with more complex SW bundles. For push notifications we only need a
-// minimal SW.
+// Minimal service worker: push notifications and click routing only.
+// No fetch handler, no precache — the app relies on the server for assets
+// and the event pipeline handles reconnection. iOS Safari is fragile with
+// complex SW bundles, so we keep this as lean as possible.
 
-declare const self: ServiceWorkerGlobalScope & {
-  __WB_MANIFEST: Array<string | { url: string; revision?: string }>;
-};
-
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
-const __precacheManifest = self.__WB_MANIFEST;
+declare const self: ServiceWorkerGlobalScope;
 
 type PushPayload = {
   title?: string;