Aetheria Realism Shaders (v2.0)

# 🚀 Release Changelog - v2.0.0 (The Overhaul Update)

### 🌟 Major Additions & Reworks
- **Reworked Volumetric Light Shafts:** Completely rewritten light shaft pipeline. Sun shafts now feature realistic atmospheric scattering and soft penumbra shadow edges with a ~15% performance gain.
- **IntegratedPBR (IPBR) Support:** Emissive block lighting now works out-of-the-box. Torches, glowing ores, sea lanterns, and portals dynamically illuminate surrounding surfaces.
- **World-Space Water Reflections:** Replaced legacy planar reflections with screen-space water reflections (SSR). Adds dynamic wave distortion based on wind speed and biome weather.
- **Enhanced Fog Mechanics:** Added dynamic elevation fog and biome-aware volumetric mist (denser in Swamps/Jungles, crisp in Snowy Mountains).

### 🎨 Visual & Aesthetic Improvements
- **Color Calibration:** Rebalanced color grading to eliminate harsh yellow daylight tones; sunrises and sunsets now feature smooth pink and deep orange gradients.
- **Rain Puddles & Wetness:** Rain now forms realistic surface puddles on horizontal blocks with customizable drying speeds.
- **Night Sky Overhaul:** Added an togglable high-resolution Aurora Borealis and dynamic moon phase specular lighting.
- **Depth of Field (DoF):** Added an auto-focus Depth of Field mode with customizable focus distance and aperture strength.

### ⚡ Optimization & Compatibility
- **Distant Horizons & Voxy Support:** Added native support for Level-of-Detail (LOD) rendering mods, including cloud blending and distant chunk shadows.
- **Temporal Anti-Aliasing (TAA):** Improved frame accumulation algorithms to reduce ghosting on moving mobs and player hands.
- **New Preset:** Added the **"Potato / Handheld"** performance profile for low-spec systems and integrated graphics.

### 🐛 Bug Fixes
- Fixed glowing entity shadows flickering when dynamic lighting was enabled.
- Resolved light bleed through solid blocks when inside deep cave systems.
- Fixed underwater fog color disassociation during night transitions.
- Corrected hand-held light calculations when holding off-hand light sources.