The localhost healthchecks didn't detect when gluetun's network
namespace died - services still responded locally but couldn't
reach the internet. Changed healthchecks to curl http://1.1.1.1
which requires the VPN tunnel to be working.
Also adds phpmyadmin, phppgadmin compose files and deploy playbook.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
