CLAUDE.md

Follow AGENTS.md as the canonical repo guide.

Short version:

this repo owns game, db, qc, and smoke/login test binaries
prefer small changes on main
auth/network/packet edits must be tested carefully
keep protocol changes aligned with m2dev-client-src and m2dev-client
use /usr/local/sbin/metin-login-healthcheck on the VPS after risky login/runtime changes