{"status":"online","service":"HUSC Student Portal Assistant (Vercel Serverless)","timestamp":"2026-10-11T10:39:50.594531+07:00","endpoints":{"cron_trigger":"/api/cron (Dành cho cron-job.org / Vercel Cron gọi định kỳ)","telegram_webhook":"/api/webhook (Dành cho Telegram Webhook)","set_webhook":"/api/set-webhook?url=https://your-domain.vercel.app"}}