- Created lts26.04.spec for Ubuntu 26.04 LTS builds - Updated Qt5 dependencies to Qt6 (libQt6Core6, libQt6Gui6, etc.) - Added Qt6SerialPort and Qt6Multimedia requirements - Changed BuildRequires to pkgconfig(Qt6*) format - Updated python-xml to python3-xml - Changed libpq-devel to match Ubuntu naming Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>