Classic Armor&Stuff

- Added a dedicated keybind for toggling Classic Armor shield protection.
- Made shield enable/disable state affect HUD display, shield rendering, shield recovery, damage absorption, and Last Stand behavior.
- Added full Dragon armor protection against negative effects while the shield is active.
- Added powered helmet underwater breathing support.
- Reduced excessive repeated shield hit processing with a short hit cooldown.
- Improved Wyvern armor model scaling to reduce body clipping through the armor.
- Refined AOE mining rules for pickaxes, shovels, and axes so each tool only mines appropriate block types.
- Kept the Dragon Staff as a universal mining tool.
- Added AOE mining height normalization for large mining areas.
- Made Shift disable both AOE mining radius and mining depth.
- Adjusted tool harvest tiers: Wyvern matches diamond, Dragon matches netherite, and Staff uses its own high-tier mining level.
- Improved fusion recipe startup validation for output space and injector tier.
- Made upgrade cores non-consumed in fusion upgrade recipes where appropriate.
- Added Dragon Staff support for damaging Chaos Guardian crystals.
- Adjusted bow shockwave damage so Endermen can be affected correctly.
- Updated Russian and English localization, including Dragon tool names, shield messages, and AOE normalization text.