Rename the two shipped application frontends' output files from pcsx2-qt / pcsx2-sdl to yaps2-qt / yaps2-sdl via OUTPUT_NAME. The CMake target names are unchanged, so the build graph, install() rules and ctest references keep working; only the produced binary file name changes.
Also repoint the Linux packaging that launches the app at the new name: the .desktop Exec, the AppImage BINARY/--executable, and the Flatpak command. The desktop app-id (net.pcsx2.PCSX2), window class, config dir (~/.config/PCSX2) and the dev/test runners are intentionally left as-is; a full display-name/app-id rebrand is a separate change.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>