Add Noveum Trace example for LiveKit Agents

[devin-codes]

Summary

Adds a docs/example page for tracing LiveKit Agents with Noveum Trace, a community-maintained
observability integration. It captures AgentSession events, STT/TTS/LLM data, tool calls,
conversation history, and optional full-conversation audio. The example mirrors the existing
langfuse_tracing example in the Metrics & Observability category.

Files changed

• docs/examples/noveum_tracing/README.md + noveum_tracing.py — new example (same shape as langfuse_tracing/)
• docs/index.yaml — metadata entry in the metrics category (+ total_examples bump)
• README.md — row in the Metrics & Observability table

Install

pip install "noveum-trace[livekit]" "livekit-agents[silero]" python-dotenv

Notes

• record=True can capture full conversation audio; use record=False for privacy-sensitive use.
• Requires Python 3.10+ and livekit-agents >= 1.0; tested with released noveum-trace 1.5.21.
• Observability-only; submitted as a docs/example rather than a provider plugin — happy to adjust
  to maintainers' preferred location.

Links

• Docs: https://noveum.ai/en/docs/integration-examples/livekit/overview
• Repo: https://github.com/Noveum/noveum-trace
• PyPI: https://pypi.org/project/noveum-trace/

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