Publish towns and resource nodes for clients in other languages

A Rust script reads the map, the towns and every region's resource nodes from the world (uo_sdk::world_of, cached_content); a script in Python or JavaScript sees only what the protocol sends, so it can't find trees or the nearest exchange without walking. Options: a world command answering towns and the nodes of a region (keys, tiles, kinds), or a published JSON export next to the bake. Document it in docs/scripting.md › Other languages.