public class SimpleApp {
    public static void main(String[] args) {
        System.out.println("WeCom Middleware Backend Starting...");
        System.out.println("Health check endpoint: /api/system/health");
        // 模拟运行
        try {
            Thread.sleep(30000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}