Python: Add Handoff + tool approval + checkpointing sample (#2346)

* Handoff sample

* handoff with tool approval

* add Hanoff sample with tool approval and checkpointing

* Add to README

* Remove unnecessary files

* Update python/samples/getting_started/workflows/checkpoint/handoff_with_tool_approval_checkpoint_resume.py

Co-authored-by: Copilot <[email protected]>

* Fix comment

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Co-authored-by: Copilot <[email protected]>

Author: moonbox3

python/samples/getting_started/workflows/README.md

@@ -52,6 +52,7 @@ Once comfortable with these, explore the rest of the samples below.
 | Checkpoint & Resume | [checkpoint/checkpoint_with_resume.py](./checkpoint/checkpoint_with_resume.py) | Create checkpoints, inspect them, and resume execution |
 | Checkpoint & HITL Resume | [checkpoint/checkpoint_with_human_in_the_loop.py](./checkpoint/checkpoint_with_human_in_the_loop.py) | Combine checkpointing with human approvals and resume pending HITL requests |
 | Checkpointed Sub-Workflow | [checkpoint/sub_workflow_checkpoint.py](./checkpoint/sub_workflow_checkpoint.py) | Save and resume a sub-workflow that pauses for human approval |
+| Handoff + Tool Approval Resume | [checkpoint/handoff_with_tool_approval_checkpoint_resume.py](./checkpoint/handoff_with_tool_approval_checkpoint_resume.py) | Handoff workflow that captures tool-call approvals in checkpoints and resumes with human decisions |
 
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