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_ClusterCollector.hpp

@@ -20,9 +20,6 @@ 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_ClusterCollector(py::module &m, const std::string &typestr) {
@@ -42,5 +39,3 @@ void define_ClusterCollector(py::module &m, const std::string &typestr) {
             },
             py::return_value_policy::take_ownership);
 }
-
-#pragma GCC diagnostic pop