fix: resolve enchanting spec vs code discrepancies (issue #324)

- D2: Move spell_iceShard to basic-spells.ts at cost 75 (canonical), remove duplicate from frost-spells.ts
- D7: disenchantEquipment now adds 'Ready for Enchantment' tag and resets rarity to 'common'
- D8: disenchantEquipment now credits recovered mana to raw mana pool
- D14: Wire enchantPower stat from discipline effects into efficiencyBonus via new getEnchantingEfficiencyBonus() helper
- D3: Fix spec file reference from crafting-attunements.ts to data/attunements.ts
- D1/D6: Add missing metalSpellFocus to spec capacity table

src/lib/game/crafting-actions/design-actions.ts

@@ -5,6 +5,7 @@ import type { EnchantmentDesign, DesignEffect } from '../types';
 import * as CraftingUtils from '../crafting-utils';
 import * as CraftingDesign from '../crafting-design';
 import { computeEffects } from '../effects/upgrade-effects';
+import { getEnchantingEfficiencyBonus } from '../effects/discipline-effects';
 import { hasSpecial, SPECIAL_EFFECTS } from '../effects/special-effects';
 
 export interface DesignActionsParams {
@@ -32,7 +33,8 @@ export function startDesigningEnchantment(
   const equipType = CraftingUtils.getEquipmentType(equipmentTypeId);
   if (!equipType) return false;
 
-  const totalCapacityCost = CraftingDesign.calculateDesignCapacityCost(effects, 0);
+  const efficiencyBonus = getEnchantingEfficiencyBonus();
+  const totalCapacityCost = CraftingDesign.calculateDesignCapacityCost(effects, efficiencyBonus);
 
   if (totalCapacityCost > equipType.baseCapacity) {
     return false;

src/lib/game/crafting-actions/disenchant-actions.ts

@@ -1,6 +1,7 @@
 // ─── Disenchanting Actions ─────────────────────────────────────────────────
 
 import type { CraftingState } from '../stores/craftingStore.types';
+import { useManaStore } from '../stores/manaStore';
 
 export function disenchantEquipment(
   instanceId: string,
@@ -19,6 +20,11 @@ export function disenchantEquipment(
     totalRecovered += Math.floor(ench.actualCost * recoveryRate);
   }
 
+  // Credit recovered mana to raw mana pool
+  if (totalRecovered > 0) {
+    useManaStore.setState((s) => ({ rawMana: s.rawMana + totalRecovered }));
+  }
+
   set((s) => ({
     equipmentInstances: {
       ...s.equipmentInstances,
@@ -26,6 +32,8 @@ export function disenchantEquipment(
         ...instance,
         enchantments: [],
         usedCapacity: 0,
+        rarity: 'common',
+        tags: [...(instance.tags || []), 'Ready for Enchantment'],
       },
     },
     log: [`✨ Disenchanted ${instance.name}, recovered ${totalRecovered} mana.`],

src/lib/game/data/enchantments/spell-effects/basic-spells.ts

@@ -159,4 +159,14 @@ export const BASIC_SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
     allowedEquipmentCategories: ALL_CASTER,
     effect: { type: 'spell', spellId: 'darkPulse' }
   },
+  spell_iceShard: {
+    id: 'spell_iceShard',
+    name: 'Ice Shard',
+    description: 'Grants the ability to cast Ice Shard (14 water/ice damage)',
+    category: 'spell',
+    baseCapacityCost: 75,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'iceShard' }
+  },
 };

src/lib/game/data/enchantments/spell-effects/frost-spells.ts

@@ -15,16 +15,6 @@ export const FROST_SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
     allowedEquipmentCategories: ALL_CASTER,
     effect: { type: 'spell', spellId: 'frostBite' }
   },
-  spell_iceShard: {
-    id: 'spell_iceShard',
-    name: 'Ice Shard',
-    description: 'Grants the ability to cast Ice Shard (18 frost damage, freeze)',
-    category: 'spell',
-    baseCapacityCost: 95,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'iceShard' }
-  },
   spell_frostNova: {
     id: 'spell_frostNova',
     name: 'Frost Nova',

src/lib/game/effects/discipline-effects.ts

@@ -153,3 +153,18 @@ export function computeDisciplineEffects(_state?: DisciplineStoreState): Discipl
 
   return { bonuses, multipliers, specials, meditationCapBonus, conversions };
 }
+
+/**
+ * Compute the enchanting efficiency bonus from discipline effects.
+ * The enchantPower stat from active disciplines is converted to an efficiency bonus
+ * that reduces enchantment capacity costs.
+ *
+ * Formula: efficiencyBonus = enchantPower / 100 (capped at 0.9)
+ *
+ * Example: enchantPower = 15 → efficiencyBonus = 0.15 (15% cost reduction)
+ */
+export function getEnchantingEfficiencyBonus(): number {
+  const effects = computeDisciplineEffects();
+  const enchantPower = effects.bonuses.enchantPower || 0;
+  return Math.min(0.9, enchantPower / 100);
+}

src/lib/game/stores/craftingStore.ts

@@ -9,6 +9,7 @@ import { useManaStore } from './manaStore';
 import { useCombatStore } from './combatStore';
 
 import { useUIStore } from './uiStore';
+import { getEnchantingEfficiencyBonus } from '../effects/discipline-effects';
 import * as ApplicationActions from '../crafting-actions/application-actions';
 import * as PreparationActions from '../crafting-actions/preparation-actions';
 import { equipItem as equipItemAction, unequipItem as unequipItemAction } from '../crafting-actions/equipment-actions';
@@ -36,6 +37,7 @@ export const useCraftingStore = create<CraftingStore>()(
         // Enchantment design actions
         startDesigningEnchantment: (name, equipmentTypeId, effects) => {
           const state = get(); // crafting state
+          const efficiencyBonus = getEnchantingEfficiencyBonus();
 
           const validation = CraftingDesign.validateDesignEffects(effects, equipmentTypeId, 0, state.unlockedEffects);
           if (!validation.valid) return false;
@@ -43,7 +45,7 @@ export const useCraftingStore = create<CraftingStore>()(
           const equipType = CraftingUtils.getEquipmentType(equipmentTypeId);
           if (!equipType) return false;
 
-          const totalCapacityCost = CraftingDesign.calculateDesignCapacityCost(effects, 0);
+          const totalCapacityCost = CraftingDesign.calculateDesignCapacityCost(effects, efficiencyBonus);
 
           if (totalCapacityCost > equipType.baseCapacity) return false;
 

src/lib/game/stores/pipelines/enchanting-tick.ts

@@ -8,6 +8,7 @@ import { calculateDesignProgress, createCompletedDesignFromProgress } from '../.
 import { calculatePreparationTick, completePreparation } from '../../crafting-prep';
 import { calculateApplicationTick, applyEnchantments, updateEnchanterAttunement } from '../../crafting-apply';
 import { useCraftingStore } from '../craftingStore';
+import { getEnchantingEfficiencyBonus } from '../../effects/discipline-effects';
 import type { TickContext, TickWrites } from '../tick-pipeline';
 
 interface EnchantingTickParams {
@@ -51,7 +52,7 @@ export function processEnchantingTicks(
             effects: activeProgress.effects,
             required: activeProgress.required,
           },
-          0,
+          getEnchantingEfficiencyBonus(),
         );
         useCraftingStore.getState().saveDesign(completedDesign);
         addLog('Design "' + completedDesign.name + '" completed!');