Quick Stack Nearby

Quick Stack Nearby brings Terraria-style quick stacking to Minecraft. The goal
is simple: press one inventory button and send matching items from your
inventory into nearby containers that already hold those items.

What 0.4.0 Does

• Adds a quick-stack button to the player inventory.
• Adds a B-by-default quick-stack keybind that can be held while moving
  around the world, and ignores the key while any UI screen is open.
• Moves matching main-inventory stacks into nearby containers that already hold
  those item types.
• Lets players right-click the button to lock main-inventory slots or keep a
  chosen count behind while quick stacking.
• Fixes right-clicking the quick-stack button so the slot rules screen opens
  correctly before inventory slot handling can consume the click.
• Adds server-operator commands for inspecting, changing, and reloading the
  nearby-container scan range.
• Keeps item movement server-authoritative for multiplayer.
• Uses the Inv+ button-slot API when an Inventory Mods companion is installed.
• Falls back to a local InventorySort-style button placement when Inv+ is not
  installed.

Install Note

Multiplayer quick stacking requires Quick Stack Nearby on both the server and
client. If the client is installed without the server mod, the button shows a
clear unavailable message instead of moving items.

Offline singleplayer works from a client install because the integrated server
runs the common mod logic in the same process.

Version 0.4.0 supports Minecraft 1.20 through 26.3-snapshot-1, including
Minecraft 26.2 final. Hotbar, armor, offhand, and carried shulker contents are
intentionally left alone in this release. More UI improvements are planned as
the quick-stack button and rules screen continue to mature.

Fabric API is required.