fix: 유산 유니크 경매 후보를 종류별로 정렬

Ref의 명마, 무기, 서적, 도구 순서와 종류 내부 선언 순서를 보존한다. 선택 목록은 종류별 optgroup으로 구분하고 API·Chromium 회귀를 추가한다.

app/game-api/src/router/inherit/index.ts

@@ -12,6 +12,7 @@ import {
     isWarTraitKey,
 } from '@sammo-ts/logic';
 import type { InheritBuffType } from '@sammo-ts/logic';
+import type { ItemSlot } from '@sammo-ts/logic';
 import { simpleSerialize } from '@sammo-ts/logic/war/utils.js';
 import { resolveLegacyCompatibleUniqueConfig } from '@sammo-ts/logic/rewards/legacyUniqueItemPool.js';
 import {
@@ -39,6 +40,8 @@ const BUFF_KEYS: InheritBuffType[] = [
     'warMagicTrialProbOppose',
 ];
 
+const UNIQUE_ITEM_SLOT_ORDER: readonly ItemSlot[] = ['horse', 'weapon', 'book', 'item'];
+
 const BUFF_LABELS: Record<InheritBuffType, string> = {
     warAvoidRatio: '회피 확률 증가',
     warCriticalRatio: '필살 확률 증가',
@@ -79,7 +82,8 @@ const loadAvailableUniqueItems = async (worldState: WorldStateRow) => {
     const loader = new ItemLoader();
     const { allItems } = await resolveLegacyCompatibleUniqueConfig(configConst, loader);
     const enabledKeys: Array<Parameters<ItemLoader['load']>[0]> = [];
-    for (const entries of Object.values(allItems)) {
+    for (const slot of UNIQUE_ITEM_SLOT_ORDER) {
+        const entries = allItems[slot] ?? {};
         for (const [key, amount] of Object.entries(asRecord(entries))) {
             if (asNumber(amount, 0) !== 0 && isItemKey(key)) {
                 enabledKeys.push(key);
@@ -94,10 +98,11 @@ const loadAvailableUniqueItems = async (worldState: WorldStateRow) => {
                 name: item.name,
                 rawName: item.rawName,
                 info: item.info ?? '',
+                slot: item.slot,
             };
         })
     );
-    return items.sort((left, right) => left.name.localeCompare(right.name, 'ko'));
+    return items;
 };
 
 const resolveWorld = async (ctx: { db: { worldState: { findFirst: () => Promise<unknown> } } }) => {

app/game-api/test/inheritRouter.test.ts

@@ -218,6 +218,32 @@ describe('inherit router actor and permission boundaries', () => {
         }
     );
 
+    it('orders unique auction candidates by Ref slot order and preserves order within each slot', async () => {
+        const fixture = buildContext({
+            configConst: {
+                allItems: {
+                    item: { che_보물_도기: 1 },
+                    book: { che_서적_07_논어: 1 },
+                    weapon: { che_무기_12_칠성검: 1 },
+                    horse: {
+                        che_명마_07_백마: 1,
+                        che_명마_07_기주마: 1,
+                    },
+                },
+            },
+        });
+
+        const status = await appRouter.createCaller(fixture.context).inherit.getStatus();
+
+        expect(status.availableUnique.map(({ key, slot }) => ({ key, slot }))).toEqual([
+            { key: 'che_명마_07_백마', slot: 'horse' },
+            { key: 'che_명마_07_기주마', slot: 'horse' },
+            { key: 'che_무기_12_칠성검', slot: 'weapon' },
+            { key: 'che_서적_07_논어', slot: 'book' },
+            { key: 'che_보물_도기', slot: 'item' },
+        ]);
+    });
+
     it('loads the first inheritance-log page without an out-of-range integer cursor', async () => {
         const createdAt = new Date('2026-07-26T00:00:00Z');
         const fixture = buildContext({