{"ok":true,"service":"명함 서류 수신 API","version":"1.0.0","endpoints":["POST /api/upload","GET /api/submissions?marketer={id}&pin={pin}","GET /api/file/{file_id}?pin={pin}","GET /api/admin/all?token={admin_token}","GET /api/admin/stats?token={admin_token}","GET /api/marketers"]}