Construction, structures and firelinks

Construction connects inventory resources to persistent world structures. Players can choose structure types, validate placement, add materials, repair, destroy and interact with firelink-related state. Structures are visible online entities and form the physical foundation of village growth and defense. Discuss placement controls, material costs, repair pressure and useful structure roles here.

Placement feedback is crucial: valid footprint, blocked edges, terrain slope and missing materials should each have a different visual explanation.