Some servers open a published port only once a player connects (through a
proxy, for example), so the boot test's port check can't see it after boot.
A template lists those ports as unboundPorts in its test.yaml, with the
reason. The first template that needs it lists one UDP port, until a real
client confirms how players reach it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>