export async function api(path, options = {}) {
  const controller = new AbortController();
  const timeout = setTimeout(() => controller.abort(), 12000);
  try {
    const response = await fetch(path, {
      ...options,
      headers: { "content-type": "application/json", ...(options.headers || {}) },
      signal: controller.signal,
    });
    const data = await response.json().catch(() => ({}));
    if (!response.ok) throw new Error(data.error || `Błąd ${response.status}`);
    return data;
  } catch (error) {
    if (error.name === "AbortError") throw new Error("Przekroczono czas odpowiedzi serwera");
    throw error;
  } finally {
    clearTimeout(timeout);
  }
}