Better Lava Lakes

Changelog 1.0.0 Added Redesigned generation for vanilla Overworld lava lakes. Irregular magma and tuff inner shorelines. A complete tuff layer surrounding each lava lake. Broken outer stone transitions for a more natural appearance. Sparse scattered stone blocks around lava lakes. Vertical generation through slopes, cliffs, and raised terrain. Correct generation on flat terrain, forests, hills, and rocky biomes. Full generation support across chunk borders. Deterministic generation based on the world seed. Added a five-block-high clear space above generated lava lakes. Added a gradual magma-to-tuff-to-stone transition on raised lava lake walls. Improved vegetation cleanup around carved lava lake openings. Technical Generation runs only when new lava lakes are created. Existing chunks and player-placed lava remain unchanged. No runtime chunk scanner or tick-based world modification is used.