PermaEfe Extreme Survival

For the latest 1.21.11 update, the PermaEfe datapack has been thoroughly overhauled to comply with the new Minecraft registry and syntax standards. The pack format has been updated to version 94.1, and all initialization gamerules have been strictly rewritten from camelCase to the new snake_case resource location format to prevent critical loading failures. Custom dimension files and weather predicates have been refactored, replacing deprecated density functions with preliminary surface levels and migrating biome-specific logic to natively include all relevant rain biomes such as meadows. Entity behavior was also stabilized by updating the Enderman NBT data to use the new angry_at and anger_end_time tags, completely eliminating console serialization errors. Finally, the toxic water mechanic has been deeply optimized using the new is_in_water entity predicate combined with a precise 300-tick scoreboard timer, delivering flawless wither and blindness effects that instantly clear upon exiting the water without causing screen flickering or server lag.