Battle Cache

## New Additions
1. F8 Container Reading

- In Creative mode, aim at any block container (chest, trapped chest, double chest, barrel, shulker box, and mod containers) and press F8.
- The server reads the container contents and appends them to the global loot pool without replacing existing entries; the data is automatically saved when the interface is closed.
- F8 on the client now sends the block the crosshair is pointing at, and the server determines whether it is a supply chest, another container, or a regular block.
- Reading limit is 54 entries (same as loot pool capacity); any excess will not be added.
2. Quantity Range (Minimum–Maximum)

- `LootEntry` adds `minCount` / `maxCount`, a random quantity within the range will be drawn when this entry is selected from a chest.
- Old saves and loot pool files are automatically compatible: read as `1..original quantity`.
- GUI Operations:
- Scroll wheel: Weight (Shift ±10)
- Left / Right click: Maximum quantity ±1
- Ctrl + Left / Right click: Minimum quantity ±1
- Middle click: Delete entry
- Bottom left of slot shows `wWeight`, bottom right shows `1-64` quantity badge; hovering shows tooltip with both weight and quantity range.
- "Read Inventory" retains the original quantity per slot as the maximum; when added from the Creative mode category bar, default is `1-1`, repeated clicks increase the maximum value.