Biatec Connector — update channel

This host serves electron-updater manifests + artifacts for the Biatec Connector desktop app (Req-N-011).

Manifest paths: /latest-mac.yml, /latest.yml. Artifacts: *.dmg, *.exe, *.blockmap.

Browse to novapost.biatec.cz for the product site, or novapost-api.biatec.cz/api/v1/health for API status.