* Revert "fix(gateway): anchor Google Chat OAuth client secret to default Hermes root"
This reverts commit fff0561441.
* Revert "fix(cli): honor global-root active_provider fallback for named profiles"
This reverts commit 3858cf4307.
* docs(google_chat): describe OAuth client secret as profile-scoped, not host-wide
The setup docs, oauth docstring, and the adapter's 'no credentials'
error message all described the Google Chat OAuth client secret as
host-wide shared infrastructure. That contradicts profile isolation:
profiles are separate auth boundaries, so two profiles can point at
different Google OAuth apps / accounts. Reword all three to say the
secret is profile-scoped and each profile registers its own.
5300727a08