Installation improvements Reworked install_dev.py for Windows development installs. Added automatic HDF5 setup through local vcpkg when HDF5 development files are missing. Avoided the vcpkg CMAKE_TOOLCHAIN_FILE recursion issue by passing explicit HDF5/ZLIB CMake paths. Automatically copies required Windows runtime DLLs next to _mcnptools_wrap.pyd: hdf5.dll z.dll aec.dll szip.dll Added full installation verification, including an HDF5 PTRAC read test. Updated INSTALL.md with the new Windows workflow. Windows install After installing Python, CMake, Git, and Visual Studio C++ tools: python install_dev.py