Replaces CarbonChat 3.0.0-beta.36 — viewer-context bug on <luckperms_prefix>.
ChatChat (HelpChat fork) renders per-recipient with sender-context PAPI +
built-in Kyorifier (& -> MM). Built from upstream main HEAD via podman/temurin 21.
Staged only — operator runs scripts/swap.sh during a quiet window. Rollback
plan + smoke checklist in docs/MIGRATION-PLAN-CHATCHAT.md. JAR gitignored;
rebuild via staging/chatchat/build/build.sh.
