Fixed warnings on Windows (#407)

Now builds clean on MSVC: cl version 19.51.36260 for x64, from Visual
Studio 2026 Build Tools 18.10.3.

Major items:

- [[maybe_unused]] instead of gcc/clang specific pragmas
- Removed names variables that weren't used
- Cast + explicit uing64

python/src/bind_ClusterFileSink.hpp

@@ -17,9 +17,6 @@
 namespace py = pybind11;
 using namespace aare;
 
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-parameter"
-
 template <typename T, uint8_t ClusterSizeX, uint8_t ClusterSizeY,
           typename CoordType = uint16_t>
 void define_ClusterFileSink(py::module &m, const std::string &typestr) {
@@ -34,5 +31,3 @@ void define_ClusterFileSink(py::module &m, const std::string &typestr) {
                       const std::filesystem::path &>())
         .def("stop", &ClusterFileSink<ClusterType>::stop);
 }
-
-#pragma GCC diagnostic pop