Old juc500_app processes kept serving pre-fix code; start.sh now
kills them and GUI defaults to port 8766.
Co-authored-by: Cursor <cursoragent@cursor.com>
PyInstaller onedir/onefile specs, Inno Setup script, and GitHub Actions
workflow to produce JUC500-Setup-win64.exe and portable builds.
Co-authored-by: Cursor <cursoragent@cursor.com>