Decay: Every Minute a Random Block Gets Deleted

📋 Changelog: v1.5

Performance overhaul and bigger decay range

• Decay scan radius increased from 24 to 64 chunks around each player. Only chunks that are currently loaded are affected, so the effective range depends on your render distance
• Completely rewritten decay engine: the world is now processed in small slices spread across many ticks instead of in one huge scan, which means no more freezes or FPS drops when decay triggers
• Block type detection is dramatically faster, so a decay cycle now starts and finishes in a fraction of the previous time
• Decay now triggers reliably every 60 seconds. If a large cleanup is still running when the next minute arrives, the next decay waits in a short queue instead of being skipped
• Mobs that decay are gone for good: when a mob type is wiped out, it is removed again if it tries to respawn anywhere within the decay radius
• Boss mobs (Ender Dragon and Wither) are still protected