HASTE v1.1.5 beta 6 — VOLUMETRIC AURORA & MILKY WAY

- Replaced the aurora's sky-direction overlay with a short ray march through a high world-space atmospheric shell.
- Added drifting 3D density and detail fields for depth, parallax, and softer volumetric folds.
- Retained a smoothed eight-second biome transition for icy and taiga regions.
- Broadened the Milky Way, softened its dust lanes, and changed the gold core to a pale blue-white glow.
- Visual direction is inspired by Solas Shader's volumetric atmosphere and aurora controls; no Solas shader code is included.
