sword of darkness

Adds the Sword of Darkness (14 attack damage, 750 durability) with a custom blue-core texture and model.
Activate its power with the drop key (Q) while holding it; the drop is cancelled and nearby mobs within ~12 blocks become temporary thralls for about 20 seconds. Thralls gain speed/strength, follow you, and focus on your attacker, your last target, or nearby hostiles. A 30-second per-player cooldown is enforced (sneak + right-click also triggers if drop is blocked).
Crafting: shaped recipe using netherite ingot on top, ender eye in the middle, and a stick on the bottom to create one sword.
Thralls are identified internally via command tags; they avoid targeting each other or their owner and expire cleanly without keeping the tag.
Item can be repaired with netherite ingots like other netherite-tier tools.

Server Validation

✅ Server validation passed - The mod was tested on a real Minecraft server and loaded successfully.