feat: Add chat history API for Semantic Kernel

[pontemonti]

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[Copilot]

Pull request overview

This pull request adds chat history API functionality to the Semantic Kernel extension for the Microsoft Agent 365 Python SDK. The implementation enables developers to send conversation history from Semantic Kernel agents to the MCP (Model Context Protocol) platform for real-time threat protection.

Changes:

• Added two new public methods (send_chat_history and send_chat_history_messages) to McpToolRegistrationService for sending chat history
• Implemented message conversion logic from Semantic Kernel's ChatMessageContent to the common ChatHistoryMessage format
• Added comprehensive unit tests (910 lines) with fixtures and mock implementations covering input validation, message conversion, role mapping, error handling, and concurrent execution scenarios

Reviewed changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
libraries/microsoft-agents-a365-tooling-extensions-semantickernel/microsoft_agents_a365/tooling/extensions/semantickernel/services/mcp_tool_registration_service.py	Core implementation adding chat history methods with message conversion helpers
tests/tooling/extensions/semantickernel/services/test_send_chat_history.py	Comprehensive unit tests covering all functionality (910 lines)
tests/tooling/extensions/semantickernel/services/conftest.py	Test fixtures and mock implementations for Semantic Kernel types
tests/tooling/extensions/semantickernel/__init__.py	Test package initialization with copyright header
tests/tooling/extensions/semantickernel/services/__init__.py	Test services subpackage initialization with copyright header
libraries/microsoft-agents-a365-tooling-extensions-semantickernel/docs/design.md	Documentation updates with API examples and usage patterns
docs/prd/semantic-kernel-chat-history-api.md	Detailed PRD document (1302 lines)
docs/prd/semantic-kernel-chat-history-api-tasks.md	Task breakdown document (553 lines)
pyproject.toml	Added pytest-cov dependency (invalid version)
uv.lock	Updated lock file with new dependencies

[Copilot]

Pull request overview

Copilot reviewed 9 out of 10 changed files in this pull request and generated 1 comment.