Add OpenUI voice latency and state article

[nexicturbo]

Summary

• adds a distinct issue Written Content: OpenUI for Voice Agents: Pairing LiveKit with Generative UI for Real-Time Visual Feedback #6 article on pairing LiveKit and OpenUI for voice agents
• focuses on the production latency/state contract: first audio, first visual frame, action-ready UI, turn IDs, stale/superseded state, interruption handling, and visual confirmations
• keeps the article practical and developer-facing rather than a generic voice-agent overview

Validation

• git diff --check
• npx --yes markdownlint-cli --disable MD013 -- "Articles/OpenUI for Voice Agents - The Latency and State Contract.md"
• no-generic-filler phrase scan

Related: #6

[entelligence-ai-pr-reviews]

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Confidence Score: 5/5 - Safe to Merge

Safe to merge — this PR adds a new article on OpenUI voice latency and state, and the automated review found zero issues across all analysis dimensions. No logic, correctness, security, or performance concerns were identified, and there are no pre-existing unresolved comments that would block this change. The content addition appears clean and well-scoped.

Key Findings:

• No review comments were generated by the automated analysis, indicating no detectable issues in the added article content or associated metadata/configuration files.
• The PR is purely additive — introducing a new documentation/content article — which carries minimal risk of regressions or side effects on existing functionality.
• Zero critical, significant, or medium-severity heuristic findings were reported, satisfying the threshold for a Score 5 assessment.

[nexicturbo]

Follow-up update: added assets/openui-voice-latency-state-contract.svg plus a short implementation note tying the diagram to the LiveKit/OpenUI turn contract: first audio, first visual frame, action-ready UI, and superseded handling for interruptions.

Validation run:

• git diff --check
• npx --yes markdownlint-cli --disable MD013 -- "Articles/OpenUI for Voice Agents - The Latency and State Contract.md"
• xmllint --noout assets/openui-voice-latency-state-contract.svg