NATS has no auth configured, so NATS_TOKEN was a placeholder that
confused users. Made it optional in the Go agent (default empty) and
removed it from Quick Setup commands. Also removed GAME_SERVER_PATH
since one-click deploy handles server installation. License key already
auto-populates from auth store after previous commit.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
1b12664d22