fix: match deception command boundaries

packages/logic/src/actions/turn/nation/che_허보.ts

@@ -23,13 +23,10 @@ import type { TurnCommandEnv } from '@sammo-ts/logic/actions/turn/commandEnv.js'
 import { JosaUtil } from '@sammo-ts/common';
 import type { NationTurnCommandSpec } from './index.js';
 import { z } from 'zod';
-import { parseArgsWithSchema } from '../parseArgs.js';
+import { normalizeLegacyIntegerArg, parseArgsWithSchema } from '../parseArgs.js';
 
 const ARGS_SCHEMA = z.object({
-    destCityId: z.preprocess(
-        (value) => (typeof value === 'number' ? Math.floor(value) : value),
-        z.number().int().positive()
-    ),
+    destCityId: z.preprocess(normalizeLegacyIntegerArg, z.number().int().positive()),
 });
 export type DeceptionArgs = z.infer<typeof ARGS_SCHEMA>;
 
@@ -59,7 +56,7 @@ const legacyChoiceIndex = (rng: GeneralActionResolveContext['rng'], length: numb
 
 const pickMoveCityId = (rng: GeneralActionResolveContext['rng'], destCityId: number, candidates: City[]): number => {
     if (candidates.length === 0) {
-        return destCityId;
+        throw new RangeError('Cannot choose a deception destination from an empty city collection.');
     }
     let idx = legacyChoiceIndex(rng, candidates.length);
     let cityId = candidates[idx]?.id ?? destCityId;
@@ -258,7 +255,7 @@ export const actionContextBuilder: ActionContextBuilder<DeceptionArgs> = (base,
     const friendlyGenerals = generals.filter((general) => general.nationId === base.general.nationId);
     const destNationSupplyCities = worldRef
         .listCities()
-        .filter((city) => city.nationId === destCity.nationId && city.supplyState > 0);
+        .filter((city) => city.nationId === destCity.nationId && city.supplyState === 1);
     return {
         ...base,
         destCity,

packages/logic/test/actions/turn/nation.test.ts

@@ -6,6 +6,7 @@ import { ActionDefinition as MoveCapitalAction } from '../../../src/actions/turn
 import { ActionDefinition as ChangeNationNameAction } from '../../../src/actions/turn/nation/che_국호변경.js';
 import { ActionDefinition as ExpandCityAction } from '../../../src/actions/turn/nation/che_증축.js';
 import { ActionDefinition as LastStandAction } from '../../../src/actions/turn/nation/che_필사즉생.js';
+import { ActionDefinition as DeceptionAction } from '../../../src/actions/turn/nation/che_허보.js';
 import { LogCategory, LogScope } from '../../../src/logging/types.js';
 import type { MapDefinition } from '../../../src/world/types.js';
 import type { TurnSchedule } from '../../../src/turn/calendar.js';
@@ -248,6 +249,33 @@ describe('Nation Actions', () => {
         });
     });
 
+    describe('che_허보 (Deception)', () => {
+        it('fails like legacy choice when the target nation has no supplied city', () => {
+            const nation = buildNation(1);
+            const destNation = buildNation(2);
+            const general = buildGeneral(1, 1, 1);
+            const target = buildGeneral(2, 2, 2, 'Target');
+            const definition = new DeceptionAction([]);
+
+            expect(() =>
+                definition.resolve(
+                    {
+                        general,
+                        nation,
+                        destNation,
+                        destCity: buildCity(2, 2),
+                        destCityGenerals: [target],
+                        friendlyGenerals: [general],
+                        destNationSupplyCities: [],
+                        addLog: () => {},
+                        rng: {} as any,
+                    } as any,
+                    { destCityId: 2 }
+                )
+            ).toThrow(RangeError);
+        });
+    });
+
     describe('che_천도 (Move Capital)', () => {
         it('changes nation capital city', () => {
             const nation = buildNation(1);