fix scenario 911 assignment troop gather

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

@@ -0,0 +1,17 @@
+import { asRecord } from '@sammo-ts/common';
+import type { ScenarioConfig } from '@sammo-ts/logic';
+
+export const LEGACY_TROOP_JOIN_EVENT = 'sammo\\API\\Troop\\JoinTroop';
+export const IMMEDIATE_TROOP_JOIN_MOVE_HANDLER = 'event_부대탑승즉시이동';
+export const LEGACY_NATION_ASSIGNMENT_EVENT = 'sammo\\Command\\Nation\\che_발령';
+export const IMMEDIATE_ASSIGNMENT_GATHER_HANDLER = 'event_부대발령즉시집합';
+
+export const hasScenarioStaticEventHandler = (
+    scenarioConfig: ScenarioConfig,
+    eventType: string,
+    handlerName: string
+): boolean => {
+    const handlersByEvent = asRecord(scenarioConfig.const.staticEventHandlers);
+    const handlers = handlersByEvent[eventType];
+    return Array.isArray(handlers) && handlers.includes(handlerName);
+};