refactor: consolidate duplicate functions (calculateDesignTime, calculateDesignCapacityCost, generateSwarmEnemies)

src/components/game/crafting/EnchantmentDesigner/utils.ts

@@ -1,6 +1,7 @@
 import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
 import { ENCHANTMENT_EFFECTS, calculateEffectCapacityCost } from '@/lib/game/data/enchantment-effects';
 import type { DesignEffect, EquipmentInstance, EquipmentCategory } from '@/lib/game/types';
+import { calculateDesignCapacityCost as calcCapacityCost, calculateDesignTime as calcDesignTime } from '@/lib/game/crafting-design';
 
 /**
  * Get available effects for selected equipment type (only unlocked ones)
@@ -85,15 +86,13 @@ export function getIncompatibilityReason(
 
 /**
  * Calculate total capacity cost for current design
+ * Delegates to canonical calculateDesignCapacityCost from crafting-design
  */
 export function calculateDesignCapacityCost(
   selectedEffects: DesignEffect[],
   efficiencyBonus: number
 ): number {
-  return selectedEffects.reduce(
-    (total, eff) => total + calculateEffectCapacityCost(eff.effectId, eff.stacks, efficiencyBonus),
-    0
-  );
+  return calcCapacityCost(selectedEffects, efficiencyBonus);
 }
 
 /**
@@ -105,9 +104,10 @@ export function getEquipmentCapacity(selectedEquipmentType: string | null): numb
 
 /**
  * Calculate design time
+ * Delegates to canonical calculateDesignTime from crafting-design
  */
 export function calculateDesignTime(selectedEffects: DesignEffect[]): number {
-  return selectedEffects.reduce((total, eff) => total + 0.5 * eff.stacks, 1);
+  return calcDesignTime(selectedEffects);
 }
 
 /**