// Stub placeholder for noble-hashes utils module
export function toHex(bytes) {
  return Array.from(bytes).map(b => b.toString(16).padStart(2, "0")).join("");
}
export function fromHex(hex) {
  const bytes = new Uint8Array(hex.length / 2);
  for (let i = 0; i < hex.length; i += 2) bytes[i / 2] = parseInt(hex.slice(i, i + 2), 16);
  return bytes;
}