MenuKit: Containers

MenuKit: Containers 2.0.0

Built on MenuKit 2.0. A clean API break.

Create a slot once; interact with it through one window - the same window that speaks to vanilla slots.

• Created slots as panel elements - real, server-synced, persistent; on the player inventory, placed containers, or foreign menus.
• Vanilla parity for free - identical in creative and survival; correct death behavior (drop / keep on keepInventory / destroy on Curse of Vanishing), grave-mod aware; opt-in Curse of Binding and XP Mending.
• Container parity - register a slot panel once, it appears on every container screen (creative and foreign menus included), no per-screen wiring.
• Shared or private per-slot state; placed-container reach (double-chest resolution, menu-free reads, capability query).
• Persistence on the natural owner (player, block, entity, item), inspectable with /data get.

Requires MenuKit 2.0.0. Breaking: the old graft/slot API does not compile against 2.0.