v2.5.2

Changed

• install.sh: --allowerasing on FFmpeg dnf install and low-RAM warning before LTO compile. Two small UX improvements; no functional change to the DRUP binary itself. (1) install_ffmpeg_rpm_fusion and install_ffmpeg_system now pass --allowerasing to dnf install so dnf can cleanly swap between ffmpeg-free / ffmpeg-free-devel (Fedora's default packages) and ffmpeg / ffmpeg-devel (RPM Fusion) when the user re-runs the installer with a different choice — previously the install failed on a "conflicting requests" error that the user had to resolve by hand. (2) A new check_compile_ram() helper is invoked at the start of build_ffmpeg_8_minimal and build_ffmpeg_from_source. The FFmpeg 8 LTO link stage can peak around 4–6 GB; on a 4 GB box without swap the linker was silently OOM-killed and the build ended on a vague error. The helper warns (does not block) when MemTotal < 8 GB and prints the exact commands to create / activate / remove a temporary swap file. We don't create one automatically, on purpose — audiophile setups run swap-less by design.