client: Pass x-zed-system-id header in get_authenticated_user() (#55688)

We are going to drive current organization selection with server side
state, so we need to know which installation we are on so the server can
return the correct currently selected organization. Next step will be
using the organization from the response and removing the locally
persisted current organization id.

Part of CLO-716

Release Notes:

- N/A
2c5fcfc24aTom Houlé committed on 5/4/2026, 7:08:24 PM· committed by GitHubparent07e57bb
2 files changedLine totals unavailable