fix: 자동 외교 설정을 제거하고 관련된 모든 부분을 업데이트

app/game-engine/src/turn/ai/policies.ts

@@ -61,10 +61,9 @@ export const AVAILABLE_INSTANT_TURN: Record<string, boolean> = {
     NPC전방발령: true,
 };
 
-export type UserRulerAutomationFeature = 'diplomacy' | 'war' | 'promotion' | 'finance' | 'capital';
+export type UserRulerAutomationFeature = 'war' | 'promotion' | 'finance' | 'capital';
 
 const USER_RULER_AUTOMATION_META_KEY = {
-    diplomacy: 'use_auto_nation_diplomacy',
     war: 'use_auto_nation_war',
     promotion: 'use_auto_nation_promotion',
     finance: 'use_auto_nation_finance',
@@ -72,7 +71,6 @@ const USER_RULER_AUTOMATION_META_KEY = {
 } as const satisfies Record<UserRulerAutomationFeature, string>;
 
 const USER_RULER_ACTION_FEATURE: Readonly<Record<string, UserRulerAutomationFeature>> = {
-    불가침제의: 'diplomacy',
     선전포고: 'war',
     천도: 'capital',
 };

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

@@ -142,12 +142,11 @@ const zSetMySetting = z.object({
     type: z.literal('setMySetting'),
     userId: z.string().min(1),
     generalId: zFiniteNumber,
-    settings: z.object({
+    settings: z.strictObject({
         tnmt: z.number().int().optional(),
         defence_train: z.number().int().optional(),
         use_treatment: z.number().int().optional(),
         use_auto_nation_turn: z.number().int().optional(),
-        use_auto_nation_diplomacy: z.number().int().optional(),
         use_auto_nation_war: z.number().int().optional(),
         use_auto_nation_promotion: z.number().int().optional(),
         use_auto_nation_finance: z.number().int().optional(),

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

@@ -1896,7 +1896,6 @@ async function handleSetMySetting(
         nextMeta.use_auto_nation_turn = settings.use_auto_nation_turn === 0 ? 0 : 1;
     }
     for (const key of [
-        'use_auto_nation_diplomacy',
         'use_auto_nation_war',
         'use_auto_nation_promotion',
         'use_auto_nation_finance',

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

@@ -98,6 +98,23 @@ describe('authenticated actor-bound command registry and execution', () => {
         ).toBeNull();
     });
 
+    it('rejects the removed automatic diplomacy setting at the daemon boundary', () => {
+        expect(
+            normalizeTurnDaemonCommand({
+                requestId: 'set-my-setting:removed-diplomacy',
+                sentAt: '2026-08-28T00:00:00.000Z',
+                command: {
+                    type: 'setMySetting',
+                    userId: 'user-7',
+                    generalId: 7,
+                    settings: {
+                        use_auto_nation_diplomacy: 1,
+                    },
+                } as unknown as TurnDaemonCommand,
+            })
+        ).toBeNull();
+    });
+
     it('rejects every actor-bound queue payload that omits userId', () => {
         for (const command of buildActorBoundCommands()) {
             const {

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

@@ -826,7 +826,7 @@ describe('legacy NPC user-chief promotion parity', () => {
         expect(run(3, 0, 1)).toEqual([{ generalId: 2, officerLevel: 11, officerCity: 0, permission: 'ambassador' }]);
     });
 
-    it('keeps user-ruler duties individually disabled until each setting is enabled', () => {
+    it('keeps non-aggression proposals NPC-only while user-ruler duties remain opt-in', () => {
         const ruler = makePromotionGeneral({ id: 1, officerLevel: 12, npcState: 0, meta: { killturn: 0 } });
         expect(canUseAutomatedNationAction(ruler, '선전포고')).toBe(false);
         expect(canUseAutomatedNationAction(ruler, '불가침제의')).toBe(false);
@@ -839,18 +839,21 @@ describe('legacy NPC user-chief promotion parity', () => {
             use_auto_nation_capital: 1,
             use_auto_nation_finance: 1,
         };
-        expect(canUseAutomatedNationAction(ruler, '불가침제의')).toBe(true);
+        // 기존 DB에 제거된 플래그가 남아 있어도 사용자 군주에게는 다시 활성화되지 않는다.
+        expect(canUseAutomatedNationAction(ruler, '불가침제의')).toBe(false);
         expect(canUseAutomatedNationAction(ruler, '선전포고')).toBe(false);
         expect(canUseAutomatedNationAction(ruler, '천도')).toBe(true);
         expect(canUseRulerAutomation(ruler, 'finance')).toBe(true);
 
         ruler.meta = {
             ...ruler.meta,
-            use_auto_nation_diplomacy: 0,
             use_auto_nation_war: 1,
         };
         expect(canUseAutomatedNationAction(ruler, '불가침제의')).toBe(false);
         expect(canUseAutomatedNationAction(ruler, '선전포고')).toBe(true);
+
+        const npcRuler = makePromotionGeneral({ id: 2, officerLevel: 12, npcState: 2, meta: { killturn: 0 } });
+        expect(canUseAutomatedNationAction(npcRuler, '불가침제의')).toBe(true);
     });
 
     it('honors the existing automatic nation-turn master switch for user chiefs only', () => {

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

@@ -237,7 +237,6 @@ describe('my information world commands', () => {
                     defence_train: 94,
                     use_treatment: 200,
                     use_auto_nation_turn: 0,
-                    use_auto_nation_diplomacy: 1,
                     use_auto_nation_war: 1,
                     use_auto_nation_promotion: 1,
                     use_auto_nation_finance: 1,
@@ -254,7 +253,6 @@ describe('my information world commands', () => {
                 defence_train: 999,
                 use_treatment: 100,
                 use_auto_nation_turn: 0,
-                use_auto_nation_diplomacy: 1,
                 use_auto_nation_war: 1,
                 use_auto_nation_promotion: 1,
                 use_auto_nation_finance: 1,