Fix the Author of Recent Commits

On a new laptop, kenji made the last 3 commits in /home/student/repos/auth-gateway with a placeholder identity (you@laptop.local). The company only accepts commits from company addresses. Nothing has been pushed yet.

Task

• The last 3 commits must have the author name kenji and the email kenji@company.example.
• Their messages and changes stay the same.
• The commits before them are not rewritten (same hashes).
• Future commits in this repository (only this one) use that name and email.