The purevpn-cli binary hardcodes a wrong S3 path for the daemon download
which returns HTTP 403. The correct URL (from the installer script) is:
/cross-platform/linux-daemon/1.4.1/pured-linux-x64.gz
purevpn-cli is a client that talks to the pured daemon on :9485.
Pre-download the daemon during Docker build and start it in the entrypoint
before any purevpn-cli invocations.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>