feat: expose health and demo character APIs

apps/api/src/health/health.controller.spec.ts

@@ -0,0 +1,7 @@
+import { HealthController } from './health.controller';
+
+describe('HealthController', () => {
+  it('returns an ok status for liveness checks', () => {
+    expect(new HealthController().getHealth()).toEqual({ status: 'ok' });
+  });
+});