fix: support containerized release runtimes

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

@@ -0,0 +1,11 @@
+import { describe, expect, it } from 'vitest';
+
+import { shouldRunTurnDaemon } from '../src/index.js';
+
+describe('game-engine entrypoint', () => {
+    it('starts only for an explicitly selected turn-daemon role', () => {
+        expect(shouldRunTurnDaemon('turn-daemon')).toBe(true);
+        expect(shouldRunTurnDaemon('api')).toBe(false);
+        expect(shouldRunTurnDaemon(undefined)).toBe(false);
+    });
+});