rename blueprint to schematic

src/lib/config/ShipsConfig.h

@@ -7,9 +7,9 @@
 #include "Formula.h"
 #include "RecipesConfig.h"  // for RecipeIngredient
 
-// Build materials and initial per-blueprint production level
-// (REQ-BLD-SHIPYARD, REQ-DEF-BLUEPRINT-DROP).
-struct ShipBlueprint
+// Build materials and initial per-schematic production level
+// (REQ-BLD-SHIPYARD, REQ-DEF-SCHEMATIC-DROP).
+struct ShipSchematic
 {
     std::vector<RecipeIngredient> materials;
     int playerProductionLevel;
@@ -65,7 +65,7 @@ struct ShipDef
     std::string id;
     bool availableFromStart;
 
-    ShipBlueprint blueprint;
+    ShipSchematic schematic;
     ShipThreat threat;
     ShipHealth health;
     ShipMovement movement;