More C++26 reflection at compile-time

C++26 static reflection enables a concise, generic Serialize function that handles byte-swapping for network byte order across nested structs, arrays, and enums. Using Clang's implementation of the upcoming reflection feature, the author iterates over data members of class types at compile time, recursively applying std::byteswap (C++23) and std::to_underlying where needed. The result is a compact, in-place serialization utility that previously required significant boilerplate.