feat: launch readiness — PWA, API hardening, memory leak fixes, sticker removal

- Add PWA infrastructure: vite-plugin-pwa, manifest, service worker,
  SW update prompt component, placeholder icons, Apple meta tags
- Harden API client: 401 auto-logout, AbortController timeouts
  (30s standard, 120s uploads), onUnauthorized callback
- Fix memory leaks: clear voice user status on leave, clean up all
  Maps (channelToSpaceMap, permissions, etc.) on removeSpace
- Upgrade error boundary to Aether Drift design with Try Again button,
  collapsible stack trace, and componentDidCatch logging
- Configure desktop icon paths in electron-builder.yml
- Remove sticker feature (server routes, schema, types, UI components)
- Fix Docker build: use **/node_modules in .dockerignore to prevent
  COPY from clobbering pnpm-installed workspace dependencies
- Add vite-env.d.ts declarations for noise suppressor wasm imports
- Exclude test files from tsc build via tsconfig

packages/web/src/App.tsx

@@ -4,6 +4,7 @@ import { LoginPage } from './components/auth/LoginPage';
 import { RegisterPage } from './components/auth/RegisterPage';
 import { AppLayout } from './components/layout/AppLayout';
 import { JoinPage } from './components/JoinPage';
+import { SwUpdatePrompt } from './components/ui/SwUpdatePrompt';
 import { useAuthStore } from './stores/authStore';
 
 function ProtectedRoute({ children }: { children: React.ReactNode }) {
@@ -27,6 +28,8 @@ function AuthRedirect({ children }: { children: React.ReactNode }) {
 
 export function App() {
   return (
+    <>
+    <SwUpdatePrompt />
     <Routes>
       <Route
         path="/login"
@@ -67,5 +70,7 @@ export function App() {
       <Route path="/" element={<Navigate to="/channels/@me" replace />} />
       <Route path="*" element={<Navigate to="/channels/@me" replace />} />
     </Routes>
+    </>
+
   );
 }