define ship roles via added modules and allow multiple weapons

src/lib/config/ShipsConfig.h

@@ -1,11 +1,11 @@
 #pragma once
 
-#include <optional>
 #include <string>
 #include <vector>
 
 #include "Formula.h"
 #include "RecipesConfig.h"  // for RecipeIngredient
+#include "ShipLayout.h"     // for PlacedModule
 
 // Build materials and initial per-schematic production level
 // (REQ-BLD-SHIPYARD, REQ-DEF-SCHEMATIC-DROP).
@@ -42,27 +42,6 @@ struct ShipSensor
     Formula sensorRangeFormula;  // REQ-SHP-SENSOR, REQ-SHP-STATS
 };
 
-struct ShipCombat
-{
-    Formula damageFormula;
-    Formula attackRangeFormula;
-    Formula attackRateFormula;  // shots per second
-};
-
-// Optional; present only on salvage ships (REQ-SHP-SALVAGE).
-struct ShipSalvage
-{
-    double collectionRange;
-    int cargoCapacity;
-};
-
-// Optional; present only on repair ships (REQ-SHP-REPAIR).
-struct ShipRepair
-{
-    Formula repairRateFormula;
-    Formula repairRangeFormula;
-};
-
 // Scrap dropped on destruction (REQ-RES-SCRAP-DROP).
 struct ShipLoot
 {
@@ -82,12 +61,8 @@ struct ShipDef
     ShipSensor sensor;
     ShipLoot loot;
 
-    // Role-specific sections. A ship is a combat ship if combat is present,
-    // a salvage ship if salvage is present, etc. A ship may have multiple
-    // of these set (hybrid ships) once the behavior systems support it.
-    std::optional<ShipCombat> combat;
-    std::optional<ShipSalvage> salvage;
-    std::optional<ShipRepair> repair;
+    // Module layout used for enemy wave ships (REQ-WAV-DEFAULT-MODULES).
+    std::vector<PlacedModule> defaultModules;
 };
 
 struct ShipsConfig