Sorted

Added

• Contents on shulker items — a shulker box now shows its contents resting on its lid wherever it appears as an item: in your inventory, on the hotbar, and as a dropped item. The most-common item inside is drawn flat on the lid in 3D, read live
  from the box, so it works in singleplayer and multiplayer alike. Toggle it under Container labels ("Contents on shulker items"; on by default).
• Shulkers shown on container labels — a container label now also previews the shulker boxes stored inside it. Each shulker is grouped by its contents and drawn as a box with that item on its lid, so a chest holding pumpkin, melon, snow-bucket,
  and empty shulkers shows all four distinctly on the outside.
• Configurable auto-scan range — a slider sets how far the optional nearby auto-open/scan reaches, capped at vanilla block reach.

Changed

• Smarter Quick Stack / Smart Empty routing — items now route by how dedicated a chest is (the amount of the item already there, weighted by how pure that chest is), are capacity-aware (never piled onto a chest that can't hold them), and overflow to the next-best chest instead of being left behind. An item matched only by broad category goes to a mixed chest rather than polluting a dedicated one.
• Elytra protected by default — a carried elytra is no longer auto-moved to a container by Quick Stack / Smart Empty (added to the default protected list alongside the ender chest).
• Plays nicely with the Peek mod — when Peek is installed, our shulker-lid preview and container labels take over cleanly instead of clashing or drawing on top of Peek's.

Fixed

• Ender chest contents no longer appear on a different chest's container label.
• The mod's buttons no longer show in the ender chest.
• Auto-scan and Quick Stack no longer use your held item (firing rockets, placing blocks) when you interact with a container while sneaking — they pause until your hand is free.
• The container cache now resets itself cleanly when its internal format changes between updates.
• Fixed a loop where two nearby auto-scanning players kept reopening each other's chests.
• Fixed an auto-scan reopen chain caused by the mod invalidating its own cache.
• Fixed a shulker-box mixin clash with other mods.