Shelf

[AssassinGhostYT]

Feature Implementation: Minecraft Shelf Block

This update introduces the official Shelf block (including all 12 wood variants and
Bamboo) with full Bedrock-accurate functionality and properties.

Key Features:

• 3-Slot Interactive Inventory: Implemented a custom ray-tracing math logic to detect
  player interaction on three distinct sections (Left, Center, Right) without
  modifying the server core.
• Redstone Integration: Support for powered_bit and powered_shelf_type. Shelves can
  connect to adjacent powered shelves to enable the Hotbar Swapping mechanic
  (swapping 3, 6, or 9 slots depending on the connection).
• Vanilla Mechanics:
  • Break Logic: Hardness set to 2.0, Blast Resistance to 3.0, and fully
    harvestable with Axes.
  • Fuel Support: Overworld variants act as fuel (smelting 1.5 items).
  • Waterlogging: Full support for sourceWaterDisplacer.
• NBT Persistence: Complete inventory saving/loading using NBT tags (Items, Facing,
  Powered).
• Optimized Performance: Uses state-based hashes for all 380+ possible block
  permutations, ensuring high performance during world rendering and updates.
• Code Quality: Fully compliant with gofmt and golangci-lint (gocritic) standards,
  using idiomatic Go patterns for state management and redstone updates.