Absorbs #4412 (tomas-forgac) rebased onto fresh master, plus two
Codex-regression-gate fixes: (1) use the scheme that actually answered the
probe for the ready/already-up URL + browser-open, (2) honor an explicit
HERMES_WEBUI_HEALTH_URL override in the WSL autostart probe.
Co-authored-by: tomas-forgac <tomas-forgac@users.noreply.github.com>
Closes#4412
nesquena-hermes