* Magentic checkpoint wip
* Magentic checkpoint updates
* Support checkpointing for magentic orchestration.
* Checkpointing for sub-workflows
* Use _execute_contexts instead of _pending_requests
* Remove unnecessary type ignores
* Support checkpoints for other orchestrations, refactor some code.
* Regenerate uv.lock
* Move workflow to main package
* Remove workflow specific unit test config
* Remove workflow-specific version info
* Revert unintended telemetry changes
* Removed the obsolete packages/workflow/tests target
* Rename dir workflow to _workflow
* Fix test imports
* Add support for the Sequential Builder. Add samples. Add tests
* AgentExecutor: always compute full convo during response
* Upgrade azure-ai-agents ToolOutput to FunctionToolOutput
* Explicit notes around allows types for custom agent executors