feat(web): in-app PWA update prompt when new service worker is available (#946)

* feat(web): in-app PWA update prompt when new service worker is available (closes #938)

User-controlled reload with a persistent banner, visibility-triggered SW
checks, and an expandable rationale. Switches registerType to prompt.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(web): align vite.config with soup layers for clean driver merge

Keeps registerType prompt while matching garden IWER stubs and PWA
share_target shape expected by feat/pwa-share-target in the manifest.

Co-authored-by: Cursor <cursoragent@cursor.com>

* Revert "fix(web): align vite.config with soup layers for clean driver merge"

This reverts commit 6f0915b0884d029a2413d8819a4dfe81d7c4e595.

* fix(web): make PWA reload apply waiting service worker updates

Handle SKIP_WAITING in injectManifest sw.ts and reload via controllerchange
with a timed fallback when vite-plugin-pwa prompt mode does not navigate.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(web): satisfy setTimeout mock typing in PWA reload tests

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(web): register PWA service worker before auth gates

Mount PwaUpdateProvider at app root and show the update banner on login
and error screens so registerSW runs for logged-out users too.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(web): offset PWA update banner below top status banners

Reserve top-12 when syncing or reconnecting so the reload prompt stays
visible above SyncingBanner and ReconnectingBanner.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(web): offset PWA update banner below voice error banner

Use PwaUpdateBannerWithStatusOffset inside VoiceProvider so voice errors
share the same top-12 reservation as sync and reconnect banners.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>

web/vite.config.ts

@@ -65,7 +65,8 @@ export default defineConfig({
     plugins: [
         react(),
         VitePWA({
-            registerType: 'autoUpdate',
+            // User-controlled reload avoids mid-session surprise reloads (autoUpdate reloads all tabs).
+            registerType: 'prompt',
             includeAssets: ['favicon.ico', 'apple-touch-icon-180x180.png', 'mask-icon.svg'],
             strategies: 'injectManifest',
             srcDir: 'src',