Updated CI/CD documentation and workflow to generate only ZIP portable versions for Windows, removing MSI installer support. Deleted setup.py and setup-ffmpeg.py scripts for MSI builds, and refactored workflow to use cx_Freeze CLI for ZIP packaging. Documentation and artifact instructions now reflect ZIP-only distribution.
Introduces a GitHub Actions workflow for building and releasing YTSage Windows installers and portable ZIPs on version tag pushes. Includes a detailed CI/CD README explaining triggers, build steps, artifact handling, release notes, and troubleshooting.