[WIP] Rollback to specific commit while retaining later commits

[Copilot]

Selective Git Rollback Utility

This PR implements a utility to help users revert code to a specific commit while preserving selected commits that came after it.

Implementation Plan:

• Create a Git utility script (scripts/selective_rollback.py) that can:
  • List commits between the target commit and HEAD
  • Allow users to select which commits to preserve
  • Create a new branch with the rollback
  • Cherry-pick the selected commits
• Add user-friendly CLI interface for the utility
• Add documentation on how to use the selective rollback feature
• Test the utility with sample scenarios
• Update README with usage examples

Original prompt

我现在想回退代码到某一个commit 但是想要保留这个commit后面的其中几次commit

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