Implement hands-on T8L4/hp-remote-branch-rename

[jovnc]

Exercise Review

Exercise Discussion

Fixes #189

Checklist

• If you require a new remote repository on the Git-Mastery organization, have you created a request for it?
• Have you written unit tests using repo-smith to validate the exercise grading scheme?
• Have you tested your changes using the instructions posted?
• Have you verified that this exercise does not already exist or is not currently in review?
• Did you introduce a new grading mechanism that should belong to git-autograder?
• Did you introduce a new dependency that should belong to app?

[github-actions]

Hi @jovnc, thank you for your contribution! 🎉

This PR comes from your fork jovnc/exercises on branch feat/hp-remote-branch-rename.

Before you request for a review, please ensure that you have tested your changes locally!

Important

The previously recommended way of using ./test-download.py is no longer the best way to test your changes locally.

Please read the following instructions for the latest instructions.

Prerequisites

Ensure that you have the gitmastery app installed locally (instructions)

Testing steps

If you already have a local Git-Mastery root to test, you can skip the following step.

Create a Git-Mastery root locally:

gitmastery setup

Navigate into the Git-Mastery root (defaults to gitmastery-exercises/):

cd gitmastery-exercises/

Edit the .gitmastery.json configuration file. You need to set the following values under the exercises_source key.

{
    # other fields...
    "exercises_source": {
        "username": "jovnc",
        "repository": "exercises",
        "branch": "feat/hp-remote-branch-rename"
    }
}

Then, you can use the gitmastery app to download and verify your changes locally.

gitmastery download <your new change>
gitmastery verify

Checklist

• (For exercises and hands-ons) I have verified that the downloading behavior works
• (For exercises only) I have verified that the verification behavior is accurate

Important

To any reviewers of this pull request, please use the same instructions above to test the changes.

[Copilot]

Pull request overview

Adds a new hands-on script for the “remote branch rename” topic (T8L4), providing a GitHub-backed repository setup that learners can use to practice remote branch rename workflows.

Changes:

• Introduces hands_on/remote_branch_rename.py to fork and clone git-mastery/samplerepo-books into a local working directory.
• Ensures a clean fork state by deleting an existing fork with the expected name before re-forking.

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[jiaxinnns]

LGTM!