fix: 유저 장수 preset 아이콘 적용 차단

사람 장수는 활성 전용 아이콘 ID를 명시한 경우에만 사용자 아이콘을 사용한다. 일반 생성, 선택 pool, Gateway 서버 동기화의 대표·후보 preset fallback을 제거하고 회귀 검증을 추가한다.

app/game-engine/src/turn/selectPoolService.ts

@@ -54,6 +54,18 @@ const DEFAULT_CREW_TYPE_ID = 1100;
 const MAX_GENERAL_TURNS = 30;
 const DEFAULT_TURN_ACTION = '휴식';
 
+export const resolveSelectionPoolUserIcon = (options: {
+    showImgLevel: number;
+    ownerPicture?: string;
+    ownerImageServer?: number;
+}): { picture: string; imageServer: number } => {
+    const useOwnerPicture =
+        options.showImgLevel >= 1 && typeof options.ownerPicture === 'string' && options.ownerPicture !== 'default.jpg';
+    return useOwnerPicture
+        ? { picture: options.ownerPicture!, imageServer: options.ownerImageServer ?? 1 }
+        : { picture: 'default.jpg', imageServer: 0 };
+};
+
 const zCandidateInfo = z.object({
     uniqueName: z.string().min(1),
     generalName: z.string().min(1),
@@ -755,11 +767,14 @@ export const createGeneralFromSelectionPool = async (options: {
         now.getTime() + resolveTurnTermMinutes(worldState) * RESELECTION_TURN_MULTIPLIER * 60_000
     );
     const prestartDeleteAfter = buildPrestartDeleteAfter(now, worldState.tickSeconds, config);
-    const showImgLevel = asNumber(config.showImgLevel, 0);
-    const useOwnerPicture =
-        showImgLevel >= 1 && typeof options.ownerPicture === 'string' && options.ownerPicture !== 'default.jpg';
-    const picture = useOwnerPicture ? options.ownerPicture! : showImgLevel >= 3 ? info.picture : 'default.jpg';
-    const imageServer = useOwnerPicture ? (options.ownerImageServer ?? 1) : info.imgsvr;
+    // 후보 picture는 NPC용 preset이다. 후보가 사람 장수(npcState=0)가 되는
+    // 순간부터는 명시적으로 선택한 계정 전용 아이콘 또는 기본 아이콘만 허용한다.
+    const { picture, imageServer } = resolveSelectionPoolUserIcon({
+        showImgLevel: asNumber(config.showImgLevel, 0),
+        ownerPicture: options.ownerPicture,
+        ownerImageServer: options.ownerImageServer,
+    });
+    const useOwnerPicture = picture !== 'default.jpg';
     const defaultSpecialWar =
         typeof configConst.defaultSpecialWar === 'string' ? configConst.defaultSpecialWar : 'None';
     const defaultSpecialDomestic =
@@ -1022,6 +1037,7 @@ export const reselectGeneralFromSelectionPool = async (options: {
             now
         ),
     };
+    const reselectionIcon = resolveSelectionPoolUserIcon({ showImgLevel: 0 });
     const updated = world.updateGeneral(general.id, {
         name: info.generalName,
         stats: centennialGrowth?.stats ?? {
@@ -1035,8 +1051,10 @@ export const reselectGeneralFromSelectionPool = async (options: {
             specialDomestic: info.specialDomestic,
             specialWar: info.specialWar ?? general.role.specialWar,
         },
-        picture: info.picture,
-        imageServer: info.imgsvr,
+        // 재선택 후보의 preset은 유저 장수에 이어 붙이지 않는다. 전용 아이콘을
+        // 다시 고르는 UI가 없는 현재 경로는 안전한 기본 아이콘으로 되돌린다.
+        picture: reselectionIcon.picture,
+        imageServer: reselectionIcon.imageServer,
         meta: updatedMeta,
     });
     if (!updated) {

app/game-engine/test/selectPoolReservation.test.ts

@@ -4,7 +4,7 @@ import { GAME_TICKS_PER_TURN } from '@sammo-ts/common';
 import { parseScenarioGeneralPoolCandidate } from '@sammo-ts/logic';
 
 import { InMemoryTurnWorld } from '../src/turn/inMemoryWorld.js';
-import { reserveSelectionPool } from '../src/turn/selectPoolService.js';
+import { reserveSelectionPool, resolveSelectionPoolUserIcon } from '../src/turn/selectPoolService.js';
 import type { TurnGeneralPoolEntry, TurnWorldSnapshot, TurnWorldState } from '../src/turn/types.js';
 
 interface TestPoolRow {
@@ -171,6 +171,27 @@ const worldState = {
 };
 
 describe('selection-pool reservation command state', () => {
+    it('uses only an explicitly selected owner icon for a human general', () => {
+        expect(resolveSelectionPoolUserIcon({ showImgLevel: 3 })).toEqual({
+            picture: 'default.jpg',
+            imageServer: 0,
+        });
+        expect(
+            resolveSelectionPoolUserIcon({
+                showImgLevel: 3,
+                ownerPicture: 'uploaded/user.png',
+                ownerImageServer: 1,
+            })
+        ).toEqual({ picture: 'uploaded/user.png', imageServer: 1 });
+        expect(
+            resolveSelectionPoolUserIcon({
+                showImgLevel: 0,
+                ownerPicture: 'uploaded/user.png',
+                ownerImageServer: 1,
+            })
+        ).toEqual({ picture: 'default.jpg', imageServer: 0 });
+    });
+
     it('excludes current reservations and keeps serialized users disjoint in DB and memory', async () => {
         const rows = buildRows();
         const world = buildWorld(rows);