[deloskiytbackup]

Summary of Changes

1. Fix region boundary clipping (Fixes Random teleportation glitch #7):

• Sets MAX_REGION_RADIUS = 22_000 blocks (~22 km) in EarthRegions.
• Players and cameras flying beyond 22 km now cleanly enter the natural buffer zone between places (EarthRegions.at() returns null instead of snapping abruptly to a neighboring country grid cell at 25 km).
• Bounded radial check applied across mod/, mod-26.2/, and mod-26.3/.

2. Parallel Voxelization via Worker Threads:

• Added VoxelWorker and VoxelPool (service/src/voxel-pool.mjs and service/src/voxel-worker.mjs) using node:worker_threads.
• Moves CPU-intensive mesh voxelization (voxelizeArea) off the main HTTP event loop, scaling across CPU cores and zero-copy transferring vox.buffer.
• Supports configurable worker count (cfg.voxelWorkers), automatic thread scaling based on available CPUs, task queuing, auto-respawn, and graceful fallback to synchronous execution if worker threads are unavailable.
• Added unit tests in service/test/voxel-pool.test.mjs. All 41 service tests pass.

[Teddy563]

Thanks! Integrated into #13 and released in 1.0.4, with follow-up fixes for worker recovery and geographic region handoff. Keeping #7 open for live-travel confirmation.