Zel's Shovels Overhaul

CHANGELOG
Version 1.0.5

Added
- Left Mouse Button → Single block digging
- Right Mouse Button → Multi-block digging
- Crafting recipes for:
  - Rustic Shovel
  - Copper Shovel
  - Cobalt Shovel
  - Thorium Shovel

Changed
- Rebalanced excavation power across all shovel tiers
- Adjusted scaling across soils, soft blocks, woods, rocks, and ores
- Reworked durability scaling between tool qualities
- Improved wear rate logic for better progression consistency
- Pickaxes now break soil blocks significantly slower than shovels, making shovels the preferred tool for faster digging and giving players a stronger reason to craft them

Improved
- Precision terrain editing
- Controlled area clearing
- Clearer tier differentiation
- Better tool identity between pickaxes and shovels