* change namespaces for agents and extension methods of the Microsoft.Agents.AI.OpenAI package
* remove unnecessary namespace
* remove unused namespaces
* fix compilation issues and rrolled back removed run methods
* sort usings
* add extension methods for AIAgent to work with OpenAI Responses primitives
* Move OpenAIChatClientAgent and OpenAIResponseClientAgent to samples
* sort usings
* sort usings
* Adding sample demonstrating hosted MCP with Responses
* Add mcp readme.md to slnx
* Update FoundryAgent sample to use MCP types from abstraction and to show how to do approval
* Fix param name after package update.
* Fix environment variable name for consistency
* Apply suggestion from @Copilot
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Co-authored-by: Chris <66376200+crickman@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>