import { QueryClient } from '@tanstack/react-query';

/**
 * Single shared QueryClient. staleTime is set to Infinity by default because, for now,
 * all queries (see src/hooks/usePackagesQuery.ts) resolve static local data — there is
 * no real network staleness yet. Revisit once a real backend exists (requirements FR-5).
 */
export const queryClient = new QueryClient({
  defaultOptions: {
    queries: {
      staleTime: Infinity,
      refetchOnWindowFocus: false,
    },
  },
});