Add Free Next.js CV Template to Portfolio

[cekuu35]

Adds a free, MIT-licensed personal portfolio & CV template built with Next.js 15 + Tailwind CSS to the Portfolio section.

• Repo: https://github.com/cekuu35/free-nextjs-cv-template
• Open source (MIT), production-ready App Router setup
• Single new entry, alphabetically placed at the end of the Portfolio list, matching the existing - [Name](url) - description. format

Thanks for maintaining this list!