WT Sky Grid

## v1.1.3

### New Features
- Nether and End dimensions now use Sky Grid generation — only nether blocks appear in the Nether, only end blocks in the End
- Each dimension has its own config file: skygrid.json (overworld), skygrid_nether.json (nether), skygrid_end.json (end)
- Nether spawners use nether-appropriate mobs (Blaze, Wither Skeleton, Zombified Piglin, Magma Cube, Hoglin, Piglin Brute, Strider, Ghast)
- End spawners use end mobs (Endermen, Endermite, Shulker)
- Nether chests use Nether Fortress and Bastion loot tables; End chests use End City loot
- Crimson and Warped fungus now auto-spawn on matching nylium, just like saplings on dirt
- Added block weight support — entries in the config can now be a plain string (weight 1) or a weighted object for fine-tuned rarity control
- Added /skygrid reload command — reloads all dimension configs from disk without restarting the server
- Sugar cane and cactus placement improved

### Config Format Change
Block entries now support an optional weight field:
  "minecraft:stone"                                   ← weight 1 (default)
  {"id": "minecraft:diamond_ore", "weight": 1}        ← rare
  {"id": "minecraft:stone", "weight": 20}             ← common

> ⚠️ Delete all skygrid config files and relaunch to regenerate them with the new defaults and format.