Single non-disruptive script replacing 7 scattered Zulip health checks.
Checks every 10 min via cron, never restarts anything:
- LiteLLM key validation for all 4 Hermes agents
- GPU port conflict / ghost process detection
- Agent gateway liveness + Zulip streaming status
- Recent gateway error count
Port conflict detection added to all 3 GPU wrappers:
- .8 (qwen): wrapper detects ghost on port 8080 before starting
- .110 (gemma): same pattern
- .15 (ornith): port-cleanup.sh replaces blanket pkill -x llama-server
