[VoiceLive] Add AgentConfig model and agent field to ResponseSession

[xitzhang]

Description

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• The pull request does not introduce [breaking changes]
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.

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Testing Guidelines

• Pull request includes test coverage for the included changes.

[Copilot]

Pull Request Overview

This PR adds support for agent configuration in the Azure AI VoiceLive SDK. The changes introduce a new AgentConfig model and integrate it with the ResponseSession model to enable agent-based conversations.

• Introduced AgentConfig model with properties for agent type, name, description, agent_id, and thread_id
• Added agent field to ResponseSession to support agent configuration in session responses
• Cleaned up documentation formatting by removing extraneous blank lines in docstrings

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
sdk/ai/azure-ai-voicelive/azure/ai/voicelive/models/_models.py	Added AgentConfig model, integrated agent field into ResponseSession, and cleaned up docstring formatting
sdk/ai/azure-ai-voicelive/azure/ai/voicelive/models/init.py	Exported AgentConfig in the public API
sdk/ai/azure-ai-voicelive/apiview-properties.json	Added cross-language mapping for AgentConfig
sdk/ai/azure-ai-voicelive/CHANGELOG.md	Documented the new agent configuration feature

Comments suppressed due to low confidence (2)

sdk/ai/azure-ai-voicelive/azure/ai/voicelive/models/_models.py:1

• The test test_response_session_with_agent doesn't actually test the new agent field. It should create and verify an AgentConfig instance with the ResponseSession to properly test the new functionality. Consider adding assertions like: from azure.ai.voicelive.models import AgentConfig; agent = AgentConfig(name='test-agent', agent_id='agent-123', thread_id='thread-456'); session = ResponseSession(model='gpt-4o-realtime-preview', agent=agent, id='session-789'); assert session.agent == agent; assert session.agent.name == 'test-agent'

# pylint: disable=line-too-long,useless-suppression,too-many-lines

sdk/ai/azure-ai-voicelive/CHANGELOG.md:1

• The release date appears to be in the future. The current date in October 2025 hasn't occurred yet. Please verify the intended release date format is correct.

# Release History