Initial commit: Kalendartool (Next.js, Prisma, Docker)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

components/auth/LogoutButton.tsx

@@ -0,0 +1,25 @@
+'use client';
+
+/** Logout-Button: beendet die Session per API und laedt neu. */
+import { useRouter } from 'next/navigation';
+import { Button } from '@/components/ui/ui';
+
+export function LogoutButton() {
+  const router = useRouter();
+
+  async function logout() {
+    await fetch('/api/auth/logout', { method: 'POST' });
+    router.push('/login');
+    router.refresh();
+  }
+
+  return (
+    <button
+      type="button"
+      onClick={logout}
+      className="rounded-md bg-slate-200 px-4 py-2 text-sm font-medium text-slate-900 hover:bg-slate-300"
+    >
+      Abmelden
+    </button>
+  );
+}