72 new zh_cn.json files, one per language namespace — the same 72 namespaces that
ship en_us.json.
28649 unique translation keys, a 1:1 match with the English key set. No key is missing,
none is extra, and none is left untranslated.
Coverage includes items, creative tab, all UI screens, the capital/monarchy systems,
herald announcements, the chronicle, decrees, House Words, diplomacy, justice,
succession, mourning, and the full villager dialogue pools (16 personalities × town
chatter / responses / visits).
