Fixed Critical item duplication in multi-server (Redis) setups - when a player removed a selling item via the selling inventory, the item was correctly given to the player and marked as DELETED in the database, but other servers received a generic LISTED removal message and incorrectly recreated the item in their EXPIRED cache, allowing it to be claimed a second time on another server
Fixed ItemRepository.select(int id) not filtering DELETED items - single-item...
Added banned-rules support for categories - allows excluding specific items from a category even if they match the inclusion rules. For example, a netherite hoe would normally appear in the "Tools" category, but if it has a specific CustomModelData (e.g., 300), it can be excluded using a banned rule. Uses the same rule types as regular rules (material, tag, lore, custom-model-data, etc.)
Added Broadcast system - sends messages to all online players when items are...
