Shop System - Server Economy

RR Shop System v2.1.0

FIXED:

- Admin panel now works on Realms (uses tags instead of isOp)

- Admin panel access via Sneak + Name Tag

- Sell price editor now works properly

- Custom sell prices persist between sessions

- Prices show correctly in category menus

NEW:

- Custom Items: Admins can add any item with custom buy/sell price

- Custom Items: Edit name, price, or delete items

- Custom Items: Visible in main shop menu

- Sell Price Editor: Set sell price per item individually

- 20 Spawn Eggs added (hostile + passive mobs)

- Every buy menu now shows sell price too

IMPROVED:

- Admin panel has 8 options (prices, sell prices, give/take coins, custom items, reset)

- Lucky bonus on purchases (1% chance)

- Balance milestones announced in chat

- Custom items support categories and stack sizes