Bundle a compact id -> {name,rarity,category} lookup (Data/gameref.json, 1177 entries,
built from community-datamined TCF-Wiki data) and a GameRefService. The admin back-office
now shows readable names + coloured rarity for inventory items instead of raw ids, and a
new /admin/catalog page browses the known game catalog (searchable, by category).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
