envoy proxy on dgx-spark (port 443)
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/grafana/   -> Grafana
/vllm/      -> qwen3-embedding-8b (vLLM, OpenAI-compatible)
/gate/      -> Gate control plane API
/orio/      -> OrioSearch API (FastAPI; try /orio/docs)
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Gate dashboard: https://dgx-spark.tail730900.ts.net:8443/