feat: add startMonitor, stopMonitor, cleanupAllShards module exports

tests/api/ecast-shard-client.test.js

@@ -376,6 +376,22 @@ describe('EcastShardClient', () => {
     });
   });
 
+  describe('module exports', () => {
+    const { startMonitor, stopMonitor, cleanupAllShards } = require('../../backend/utils/ecast-shard-client');
+
+    test('startMonitor is exported', () => {
+      expect(typeof startMonitor).toBe('function');
+    });
+
+    test('stopMonitor is exported', () => {
+      expect(typeof stopMonitor).toBe('function');
+    });
+
+    test('cleanupAllShards is exported', () => {
+      expect(typeof cleanupAllShards).toBe('function');
+    });
+  });
+
   describe('handleError with code 2027', () => {
     test('marks game as finished and emits events on room-closed error', () => {
       const events = [];