Wake storage rewrite

Replaced the per-Y-level quad-tree (with fixed-depth brick leaves) with a hash map that stores wake chunks directly. Simplifies data management and removes the rigid spatial hierarchy.

Single draw call rendering

Wake rendering now batches all geometry into one draw call per frame instead of one per brick. Wake chunks allocate regions in a shared texture atlas and upload their data there, enabling large-scale batching and significantly reducing draw overhead.

Larger shared texture atlas

All wake chunks now share a larger atlas instead of sequentially writing to a single small texture. Edge case where the atlas runs out of space is not fully handled yet.

Removed OpenGL draw calls

Rendering path no longer relies on direct OpenGL draw calls, improving forward compatibility and stability with newer Minecraft rendering updates.