WallCraft AI Glossary - FoundryVTT: The virtual tabletop platform being extended. - Scene: A map/workspace in FoundryVTT where walls, tokens, and other elements live. - Wall: A linear obstacle segment; may be solid, a door, or a window. - Door/Window: Wall segments with special types; may require swing/hinge data later. - GridSize: The pixel size of a single tile on the scene grid. - Preview: A non-destructive overlay showing AI-suggested walls before applying them. - MVP: Minimum Viable Product. - API Token: Secret used to authorize requests to the cloud AI endpoint.