fix: 시나리오별 장비 매매 품목 범위를 보존

현재 시나리오 allItems를 API 선택지와 턴 실행 검증에 함께 적용한다. 빈 설정은 Ref 기본 장비 24종으로 복원하고 명시된 비급 시나리오는 기존 품목을 유지한다.

packages/logic/test/itemActionEvents.test.ts

@@ -252,6 +252,37 @@ describe('typed item lifecycle events', () => {
         });
     });
 
+    it('시나리오 상점 목록에 없는 전역 구매 가능 아이템을 거부한다', () => {
+        const itemKey = 'event_전투특기_격노';
+        const catalog: Record<string, TurnCommandItemCatalogEntry> = {
+            [itemKey]: {
+                slot: 'item',
+                name: '격노의 비급',
+                rawName: '격노의 비급',
+                cost: 100,
+                reqSecu: 0,
+                buyable: true,
+                unique: false,
+            },
+        };
+        const denied = new TradeItemAction({
+            ...BASE_ENV,
+            itemCatalog: catalog,
+            purchasableItemKeys: new Set(),
+        });
+        const allowed = new TradeItemAction({
+            ...BASE_ENV,
+            itemCatalog: catalog,
+            purchasableItemKeys: new Set([itemKey]),
+        });
+
+        expect(denied.parseArgs({ itemType: 'item', itemCode: itemKey })).toBeNull();
+        expect(allowed.parseArgs({ itemType: 'item', itemCode: itemKey })).toEqual({
+            itemType: 'item',
+            itemCode: itemKey,
+        });
+    });
+
     it('계략 성공 capability만 소비하며 typed 결과로 소비 item을 반환한다', () => {
         const general = makeGeneral('che_계략_이추');
         const itemModules = createItemActionModules(createItemModuleRegistry([strategyItemModule]));

packages/logic/test/legacyUniqueItemPool.test.ts

@@ -1,6 +1,9 @@
 import { describe, expect, it } from 'vitest';
 
-import { resolveLegacyCompatibleUniqueConfig } from '../src/rewards/legacyUniqueItemPool.js';
+import {
+    resolveLegacyCompatibleUniqueConfig,
+    resolveLegacyPurchasableItemKeys,
+} from '../src/rewards/legacyUniqueItemPool.js';
 
 describe('legacy-compatible unique item pool', () => {
     it.each([undefined, {}, '{}'] as const)('restores the Ref default pool when allItems is %j', async (allItems) => {
@@ -27,4 +30,29 @@ describe('legacy-compatible unique item pool', () => {
             },
         });
     });
+
+    it.each([undefined, {}, '{}'] as const)('restores the Ref default shop items when allItems is %j', (allItems) => {
+        const keys = resolveLegacyPurchasableItemKeys(allItems === undefined ? {} : { allItems });
+
+        expect(keys.size).toBe(24);
+        expect(keys.has('che_명마_01_노기')).toBe(true);
+        expect(keys.has('che_치료_환약')).toBe(true);
+        expect(keys.has('event_전투특기_격노')).toBe(false);
+    });
+
+    it('uses only non-limited entries from an explicit scenario shop pool', () => {
+        const keys = resolveLegacyPurchasableItemKeys({
+            allItems: {
+                weapon: {
+                    che_무기_01_단도: 0,
+                    che_무기_12_칠성검: 2,
+                },
+                item: {
+                    event_전투특기_격노: 0,
+                },
+            },
+        });
+
+        expect([...keys]).toEqual(['che_무기_01_단도', 'event_전투특기_격노']);
+    });
 });