RestRealmRP v3.6.4 GOLD NUGGET CIT FIX

Source of the broken menu entries:
- Lucky Key: old RestRealm/MRP content.
- Egg Research, Raw Gold, Microscop and the other science/deco entries: D.E.C.O pack.

Cause:
These entries were converted from CIT into vanilla name-component selectors. RP Renames preview items use styled names, so the selector fell back to the normal gold nugget.

Fix:
- Restored 152 original D.E.C.O CIT files.
- Added 5 CIT bridges for Lucky Key, Ring, Wedding ring, Coin and Gold coins.
- Removed the broken gold_nugget name selector so RP Renames no longer shows fallback nugget previews from that file.
- Other item categories, tridents, GUI colors and pack description were not changed.
