{"message":"✅ Maxtek Smart Home API is running!","endpoints":{"upload":"POST   https://api.magnustech.co/upload/specsheet          [🔒 Bearer Token required]","downloadLatest":"GET    https://api.magnustech.co/download/specsheet/:productCode","downloadVersion":"GET    https://api.magnustech.co/download/specsheet/:productCode?version=filename.pdf","listVersions":"GET    https://api.magnustech.co/specsheet/:productCode/versions","listAll":"GET    https://api.magnustech.co/specsheets"}}