Document the purpose of api.cloudflareclient.com

[jamie-sandbox]

Existing documentation URL(s)

https://developers.cloudflare.com/cloudflare-one/connections/connect-devices/warp/deployment/firewall/#client-orchestration-api

What changes are you suggesting?

The endpoint api.cloudflareclient.com is not mentioned anywhere in the WARP zero trust documentation, even though the WARP client seems to connect to this on a regular basis.

This has been observed both in full WARP and DoH-only modes.

Connections to api.cloudflareclient.com follow the system proxy settings, as these connections were observed when reviewing the corporate proxy server logs for a laptop using the WARP zero trust client.

As far as I can tell, api.cloudflareclient.com resolves to generic Cloudflare addresses rather than dedicated WARP ranges.

What is the purpose of api.cloudflareclient.com? Is it supposed to follow the system proxy settings? Do we need to whitelist it?

Additional information

No response