feat(ui): hide spoiler banner, anonymize claims, optional guest name, list wishlists on home, drop esgotados toggle

app/admin/guests/page.tsx

@@ -29,7 +29,6 @@ function GuestsManager() {
   const onCreate = async (e: React.FormEvent) => {
     e.preventDefault();
     setErr('');
-    if (!name.trim()) return;
     setBusy(true);
     try {
       await guestsApi.create(name.trim());
@@ -67,7 +66,7 @@ function GuestsManager() {
         <input
           value={name}
           onChange={(e) => setName(e.target.value)}
-          placeholder="Nome do convidado"
+          placeholder="Nome do convidado (opcional)"
           className="flex-1 border rounded px-3 py-2"
         />
         <button disabled={busy} className="bg-indigo-600 text-white rounded px-4 py-2 disabled:opacity-50">