Haste v1.1.4 V38 — Distant Horizons water occlusion and LOD smoothing

Changes
- Distant Horizons water now checks nearby opaque Minecraft depth in reconstructed view space, rather than comparing incompatible raw depth values.
- Reduced the opacity of distant LOD water so broad low-detail surfaces do not overpower the scene.
- Added a subtle earlier atmospheric blend and a small saturation reduction to DH terrain only; regular Minecraft terrain keeps its existing fog settings.
- Preserved the v36 fix that removed the invalid comparison against vanilla `far` in DH terrain/water passes.

Testing note
This is a development build. ZIP structure and text-level shader changes are validated here, but a live Minecraft/Iris/Distant Horizons render is still needed to confirm visual behavior with the user's exact mod versions and settings.
