Hermes on-call (retired)

Hermes WebUI / hermes-oncall has been removed from the cluster.

Need	Where
Alert triage / Investigate	Hearth Agent
Triage sandbox (kubectl/flux)	Hearth triage sandbox
Agent web UI	https://hermes-dash.<domain> (official Hermes dashboard on the Hearth sidecar)
Retirement notes	Retire Hermes WebUI triage