fix(at): correct PDS droplet IP to 165.227.120.137
The PDS moved from 138.197.35.160 to 165.227.120.137 — update
the CLI default and set PDS_CONTACT_EMAIL_ADDRESS=mail@aesthetic.computer
on the live server.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>