Context

PR #25660 routes messages to multiple in-process agent profiles, but per-agent process supervision remains future work.

Work

• Decide whether profiles need separate worker processes, restart policy, health checks, or failure isolation.
• Ensure one wedged/crashing agent does not take down unrelated routed profiles.
• Add operational docs and tests/smokes for recovery behavior.

Source

Follow-up from #25660.

Referenced by #25660.