feat: implement monthly city supply update

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

@@ -46,6 +46,7 @@ import {
     type MonthlyEventActionHandler,
 } from './monthlyEventHandler.js';
 import { createRaiseDisasterHandler } from './monthlyDisasterAction.js';
+import { createUpdateCitySupplyHandler } from './monthlyCitySupplyAction.js';
 import { DatabaseTurnDaemonLease, TurnDaemonLeaseUnavailableError } from '../lifecycle/databaseTurnDaemonLease.js';
 
 export interface TurnDaemonRuntimeOptions {
@@ -167,6 +168,13 @@ const createTurnDaemonRuntimeWithLease = async (
             generalActionModules: monthlyActionModules.general,
         })
     );
+    eventActions.set(
+        'UpdateCitySupply',
+        createUpdateCitySupplyHandler({
+            getWorld: () => worldRef,
+            map: snapshot.map,
+        })
+    );
     eventActions.set('ProcessIncome', (_args, environment) => {
         void incomeHandler.onMonthChanged?.({
             previousYear: environment.month === 1 ? environment.year - 1 : environment.year,