feat(admin): guests CRUD UI with copy-link

app/admin/guests/page.tsx

@@ -0,0 +1,97 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import AdminGuard from '@/components/admin-guard';
+import { guestsApi, type Guest } from '@/lib/api';
+
+export default function AdminGuestsPage() {
+  return (
+    <AdminGuard>
+      <GuestsManager />
+    </AdminGuard>
+  );
+}
+
+function GuestsManager() {
+  const [guests, setGuests] = useState<Guest[]>([]);
+  const [name, setName] = useState('');
+  const [busy, setBusy] = useState(false);
+  const [err, setErr] = useState('');
+
+  const load = async () => setGuests(await guestsApi.list());
+  useEffect(() => { load(); }, []);
+
+  const linkFor = (g: Guest) => {
+    const base = typeof window === 'undefined' ? '' : window.location.origin;
+    return `${base}/?usr=${g.id}`;
+  };
+
+  const onCreate = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setErr('');
+    if (!name.trim()) return;
+    setBusy(true);
+    try {
+      await guestsApi.create(name.trim());
+      setName('');
+      await load();
+    } catch (e: any) {
+      setErr(e.message || 'Erro ao criar');
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  const onRename = async (g: Guest) => {
+    const next = prompt('Novo nome', g.name);
+    if (!next || next.trim() === g.name) return;
+    await guestsApi.rename(g.id, next.trim());
+    await load();
+  };
+
+  const onDelete = async (g: Guest) => {
+    if (!confirm(`Excluir o convidado ${g.name}? As reservas dele(a) ficarão sem dono.`)) return;
+    await guestsApi.delete(g.id);
+    await load();
+  };
+
+  const onCopy = async (g: Guest) => {
+    await navigator.clipboard.writeText(linkFor(g));
+  };
+
+  return (
+    <div className="max-w-3xl mx-auto p-6 space-y-6">
+      <h1 className="text-2xl font-bold">Convidados</h1>
+
+      <form onSubmit={onCreate} className="flex gap-2">
+        <input
+          value={name}
+          onChange={(e) => setName(e.target.value)}
+          placeholder="Nome do convidado"
+          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">
+          {busy ? 'Criando…' : 'Criar link'}
+        </button>
+      </form>
+      {err && <div className="text-red-600 text-sm">{err}</div>}
+
+      <ul className="divide-y border rounded">
+        {guests.map((g) => (
+          <li key={g.id} className="p-3 flex items-center justify-between gap-3">
+            <div className="flex-1 min-w-0">
+              <div className="font-medium truncate">{g.name}</div>
+              <div className="text-xs text-gray-500 truncate">{linkFor(g)}</div>
+            </div>
+            <div className="flex gap-2 shrink-0">
+              <button onClick={() => onCopy(g)} className="text-sm border rounded px-2 py-1">Copiar link</button>
+              <button onClick={() => onRename(g)} className="text-sm border rounded px-2 py-1">Renomear</button>
+              <button onClick={() => onDelete(g)} className="text-sm border rounded px-2 py-1 text-red-600">Excluir</button>
+            </div>
+          </li>
+        ))}
+        {guests.length === 0 && <li className="p-3 text-gray-500 text-sm">Nenhum convidado ainda</li>}
+      </ul>
+    </div>
+  );
+}

app/admin/page.tsx

@@ -154,6 +154,12 @@ function AdminPageContent() {
               >
                 View Public Site
               </Link>
+              <Link
+                href="/admin/guests"
+                className="inline-flex items-center px-6 py-3 border-2 border-indigo-600 dark:border-indigo-500 text-base font-semibold rounded-lg text-indigo-600 dark:text-indigo-400 bg-white dark:bg-gray-800 hover:bg-indigo-50 dark:hover:bg-gray-700 transition-all"
+              >
+                Convidados
+              </Link>
               <button
                 onClick={logout}
                 className="inline-flex items-center px-6 py-3 border-2 border-red-600 dark:border-red-500 text-base font-semibold rounded-lg text-red-600 dark:text-red-400 bg-white dark:bg-gray-800 hover:bg-red-50 dark:hover:bg-red-900/20 transition-all cursor-pointer"