Diod v0.1.0.43 — Prefab building and faster free excavation

- Build ready-made homes, shelters and mining sites through Craft (K), using rotation, alignment and material-paid construction.
- Remove the B custom-building and G terrain-design interfaces. Existing built geometry remains saved.
- Keep free shovel/pickaxe excavation anywhere, with larger bites, lower effort and a retained click while local collision rebuilds. Terrain mesh caching reduces excavation refresh delays.
- Allow suitable excavated ground to support prefab foundations.
- Temporarily suspend settlers and level-up arrivals while preserving their saved inventories and orders for future recruitment.

Continue your existing save. Buildings, terrain, possessions and saved settlers are retained. Settlers are dormant. Close the game before replacing the application; do not downgrade saves.

Known issues
- Placement still uses an overhead camera. Closer and more precise placement is planned next.
- The owner reports brief recurring freezes and character jumping when walking on excavated ground. These are not fixed in this release and will be investigated next.
- Excavation rebuilds still have a visible delay, particularly the first cut; responsiveness is improved but not instantaneous.
- No physical controller, Intel Mac or Windows/Linux GPU gameplay validation in this release pass.