Items Organisator

## Nested and modded inventories

Restricted items no longer survive by hiding inside a container.

- **Curios slots** are swept with the player's inventory, under the same rule:
  a creative admin keeps hidden items, the blacklist spares nobody.
- **Backpacks and portable containers** are handled through the standard Forge
  `ITEM_HANDLER` capability rather than a per-mod patch — covering
  Sophisticated Backpacks, TACZ loadout bags and most others.
- **Shulker boxes** are read straight from item NBT, where their contents
  actually live while the box is an item.

Nesting is followed one bag deep. The container itself is never destroyed,
only the restricted items inside it. Player-carried containers are swept every
five seconds rather than every second.