Meadowfell 2.3 Procedural Rivers & Waterfalls Update

Procedural Rivers
* Generate rivers anywhere with the option wheel.
* Discover naturally generated rivers
* Real-time terrain carving, meandering, and waterfalls.
* Rivers adapt width, depth, and flow; failed paths form ponds.
* Auto-adds rocks, reeds, splashes, and sound zones.
* Optimized river shader with foam, distortion, and highlights.
* Streamlined river editor with live sliders for width, depth, waviness.
* Fully undoable.

World & Visuals
* Smarter placement near rivers, shores, and biomes.
* Improved terrain colors, grass, and underbrush with regional variety.
* Enhanced detail added to rocks and waterfalls.

Creatures & Gameplay
* Smoother animal movement and animation (better IK, less jitter).
* Restored correct "look at" behavior for animals.
* New Tree Cracker spell in action wheel - blasts down trees quickly

Environment & Biomes
* Improved lighting, fog, wind, and weather variety.
* Southern biomes simplified with distinct vegetation sets.

UI & Controls
* Cleaner interfaces for rivers, lakes, and gardens.
* Improved layouts for keyboard and gamepad.
* Fixed category bar and sidebar alignment.
* New “Unstuck” button also clear swimming and reposition issues.