DAI Auto RPG 2.0 MineShaft v0.5.3

- Fixed fresh-world creation on DAI 1.9.5.
- Replaced the late-loaded custom world_preset request with DAI 1.9.5 native world_type generation.
- Kept the Overworld as a true void and omitted Nether/End to prevent escape into normal generated dimensions.
- Removed the v0.5.2 experience controls override; gameplay behavior is restored to the v0.5.1 policy.
- Kept the existing save ID, floors 1-10, reactions, generation functions, balance, and progression unchanged.
