Get Chunked

Patch notes 0.3.1

Added Support for chunks with modded content.

• Force-load safety: Pinned chunks no longer trigger generation; only already-present chunks are kept ticking to prevent chunks with modded content from resetting non vanilla blocks and entities. Force loaded chunks will be loaded into memory first on startup.
• Missing chunk visibility: Logs a warning when a pinned chunk isn’t on disk (“Chunk (x, z) cannot be force-loaded because it has not been generated yet.”).