Release 4.2.0

• Full Lua scripting system with exposed APIs and sandboxed execution.
• Script management, events, input handling, and map overlays available to Lua.

Lua API:

• app (editor state, transactions, selection, clipboard, camera, events, storage)
• map, tile, item, creature/spawn, selection
• brushes
• Dialog (UI)
• Image
• mapView (overlays)
• http
• noise, algo, geo (procedural & geometry)

Full API docs: README.md