Brain
List agent to knowledge-base connections
The calling tenant’s agent->knowledge-base connections, newest agent first. A list of CONNECTIONS, not a roster: an agent with no connection does not appear. The AGENT is scoped to the calling tenant_user, not to the company: a brain is shared by the company (brain_knowledge_bases has no tenant column) but an agents row is not, so an agent belonging to another tenant_user answers 404 resource_not_found — the same answer /v1/employees gives for it.
List agent to knowledge-base connections