// base64
// Purpose: Defines the base64 module and the local helpers/components used in this file.
// Scope: Keeps behavior unchanged while isolating this concern into a clear, single-responsibility unit.
export function bytesToBase64(bytes) {
  let binary = '';
  const chunkSize = 0x8000;
  for (let i = 0; i < bytes.length; i += chunkSize) {
    const chunk = bytes.subarray(i, i + chunkSize);
    binary += String.fromCharCode(...chunk);
  }
  return btoa(binary);
}