Compose buildings from definitions and capabilities

tests/test_skill_tree.gd

@@ -72,9 +72,9 @@ func _process(delta: float) -> bool:
 			# Since #21 an unresearched structure is not listed at all, rather
 			# than listed and greyed. It is therefore unreachable from the
 			# menu - but the popup must still refuse if something calls
-			# _on_place_crafter() by another route.
+			# the generic definition entry point by another route.
 			var hidden: bool = not scene.get_node("UI/BuildMenu/CrafterButton").visible
-			controller._on_place_crafter()
+			controller._show_building_info(GameState.BUILDING_SHIP_CRAFTER)
 			var offered: bool = popup.get_node("Panel/BuildButton").visible
 			print("locked crafter: hidden_from_menu=%s confirm_offered=%s" % [hidden, offered])
 			if not hidden or offered: