{"status":"ok","service":"macstrong-api","environment":"unknown","timestamp":"2026-07-17T17:56:24.484Z","endpoints":{"POST /pdf":"Generate PDF — auto-detects engine: HTML→browser, Markdown/JSON→VMPrint — 10 credits","POST /pdf-to-img":"Convert PDF page to image (PNG/JPG) — 10 credits","GET /usage":"Current credit usage and limits"}}