Iourus Races

⚙️ Racial Ability Rework

- Reworked several racial abilities to use native attributes and custom mechanics instead of permanent vanilla potion effects.
- Racial abilities no longer interfere with potions that provide the same effects.
- Removed unwanted racial effect icons from the inventory.

🧝 Elf
- Night Vision is now handled as a racial ability instead of the vanilla Night Vision effect.
- Jump bonus now uses the JUMP_STRENGTH attribute.
- Slow Falling has been replaced with a custom racial falling mechanic.
- Vanilla Night Vision and other potions now work independently.

⛏️ Dwarf
- Replaced the permanent Haste effect with a native mining efficiency bonus.
- Dwarves now mine faster without displaying a Haste effect.

👺 Goblin
- Night Vision is now a native racial ability.
- Jump bonus now uses the JUMP_STRENGTH attribute.
- Removed dependency on vanilla Speed and Jump Boost effects for racial bonuses.

🌊 Melfork
- Reworked underwater racial abilities.
- Water Breathing is now handled directly without the vanilla potion effect.
- Underwater Strength is now provided through an attack damage modifier.
- Melforks receive an attack damage penalty while outside water instead of the vanilla Weakness effect.
- Night Vision now activates while underwater.
- Increased Water Movement Efficiency to 1.0, removing the standard underwater movement penalty.

🐉 Draconic
- Replaced the permanent Fire Resistance effect with native racial fire immunity.
- Draconic players are now immune to fire-based damage without receiving the vanilla Fire Resistance effect.
- Existing lava movement mechanics remain intact.

🐛 Fixes
- Fixed racial abilities interfering with vanilla potion effects.
- Fixed racial effects remaining or being incorrectly removed after changing races.
- Fixed players being fully healed when racial attributes were reapplied after reconnecting.
- Improved cleanup of race-specific attribute modifiers when changing or resetting races.