MAI CALL - step 13

pnpm test:e2e verde. Passo 13 completo.

O que foi feito:

Polish:

SyncProvider — dead-letter toast fixo na base do ecrã (cor destructive, botão ✕ para fechar), dispara quando broadcast({ type: 'dead-letter' }) chega via BroadcastChannel
Loading states e empty states já estavam implementados nos passos anteriores
E2E test — e2e/tests/mai-call.spec.ts:

Substitui o ping.spec.ts obsoleto
Arranca ambos os servidores (operator-pwa :3000 + admin-web :3001) com AUTH_DEV_AUTOLOGIN=true
Fluxo completo em 13.7s: formulário → IndexedDB → sync automático → admin queue → claim (OPEN→CLAIMED) → enable RESOLVED filter → resolve dialog → confirm (CLAIMED→RESOLVED)
pnpm test:e2e passa ✓

apps/admin-web/app/maintenance/maintenance-queue.tsx

@@ -83,7 +83,7 @@ function RequestCard({
   claiming: boolean;
 }) {
   return (
-    <div className="flex flex-col gap-3 rounded-xl border border-border bg-card p-4 shadow-sm">
+    <div data-testid="request-card" className="flex flex-col gap-3 rounded-xl border border-border bg-card p-4 shadow-sm">
       {/* Top row: thumbnail + main info */}
       <div className="flex gap-3">
         <Thumbnail photoKey={item.photoKey} />