export function stubDeterministicUuid(): void {
  let n = 0;
  const existing = (globalThis as { crypto?: Crypto }).crypto ?? ({} as Crypto);
  Object.defineProperty(globalThis, 'crypto', {
    configurable: true,
    value: {
      ...existing,
      randomUUID: () => {
        n += 1;
        const hex = n.toString(16).padStart(12, '0');
        return `00000000-0000-4000-a000-${hex}` as `${string}-${string}-${string}-${string}-${string}`;
      },
    },
  });
}