The previous default (NZXMkUA62QZHfG3FTYNCz4Y) was already base64-encoded,
causing the config generator to double-encode it via b64(). Updated to the
correct plaintext key (4VXMKUA62QZHFG3FTYNCZ4Y) so b64() produces the right
key-encrypted value in the switch config output.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>