fix: 첫 모병 예약도 후방 발령에 반영한다

Ref의 che_모병 extends che_징병 상속 의미를 예약턴 문자열 경계에서 복원하고 두 명령을 함께 회귀한다.

app/game-engine/src/turn/ai/generalAi/core.ts

@@ -677,6 +677,14 @@ export class GeneralAI {
         return this.reservedTurnProvider.getGeneralTurn(generalId, 0);
     }
 
+    hasFirstReservedGeneralRecruitmentTurn(generalId: number): boolean {
+        const action = this.getFirstReservedGeneralTurn(generalId).action;
+        // Ref checks `instanceof che_징병`; che_모병 inherits che_징병 there.
+        // Core persists the concrete command key, so preserve that subtype
+        // relationship explicitly at the serialized reserved-turn boundary.
+        return action === 'che_징병' || action === 'che_모병';
+    }
+
     resolveGeneralAiStats(general: TurnGeneral): ReturnType<typeof resolveLegacyAiStats> {
         if (this.commandEnv.generalActionModules) {
             return resolveLegacyAiStatsWithModules(

app/game-engine/src/turn/ai/generalAi/nation/assignments/userAssignments.ts

@@ -55,8 +55,7 @@ export const do부대유저장후방발령 = (ai: GeneralAI) => {
         if (!isGeneralTurnBefore(general, troopLeader)) {
             return false;
         }
-        const reserved = ai.getFirstReservedGeneralTurn(general.id);
-        if (reserved.action !== 'che_징병') {
+        if (!ai.hasFirstReservedGeneralRecruitmentTurn(general.id)) {
             return false;
         }
         return true;