Build native Windows packages for both RDNA4 targets

Add explicit gfx1200/gfx1201 builds, runtime selection and per-target
code objects. Guard staging, packaging and installation against mixed
architectures; retain gfx1201 compatibility and strict K/M arithmetic.

Adapt realdody's target configuration and MSVC binary16/BOOL portability
fixes from ae530b0. Do not import its forced gfx12 layout on RDNA3.
Add exhaustive binary16 and C++/PowerShell target contract regressions.

Validation: 20 CTest gates on RX 9070 XT; four software-only gfx1200 gates;
MSVC portability compile checks; exact 4K K async and M control outputs;
isolated package install/restore and mixed-target rejection tests.
No physical gfx1200 validation is claimed.

Co-authored-by: realdody <[email protected]>

tools/windows/hip_gfx1201_probe.cpp

@@ -9,13 +9,13 @@ int main(int argc, char** argv)
         if (args.module.empty()) throw std::runtime_error("--module is required");
         HipApi api(args.hip_root);
         hipDeviceProp_t props{};
-        api.select_gfx1201(args.device, props);
+        api.select_architecture(args.device, props);
         loaded_modules();
         size_t free = 0, total = 0;
         api.check(api.hipMemGetInfo(&free, &total), "hipMemGetInfo");
         std::printf("VRAM free=%zu total=%zu\n", free, total);
         hipModule_t module = nullptr;
-        api.check(api.hipModuleLoad(&module, args.module.c_str()), "hipModuleLoad(gfx1201)");
+        api.check(api.hipModuleLoad(&module, args.module.c_str()), "hipModuleLoad(target)");
         struct ModuleCleanup { HipApi& api; hipModule_t m; ~ModuleCleanup() { if (m) (void)api.hipModuleUnload(m); } } cleanup{api, module};
         hipFunction_t kernel = nullptr;
         api.check(api.hipModuleGetFunction(&kernel, module, "d4r_probe_pattern"), "hipModuleGetFunction");
@@ -41,7 +41,7 @@ int main(int argc, char** argv)
         allocation_cleanup.p = nullptr;
         api.check(api.hipModuleUnload(module), "hipModuleUnload");
         cleanup.m = nullptr;
-        std::printf("PASS HIP architecture=gfx1201 iterations=%u guard_verified=1\n", args.iterations);
+        std::printf("PASS HIP architecture=%s iterations=%u guard_verified=1\n", d4r::diag::HipApi::target_arch(), args.iterations);
         return 0;
     } catch (const std::exception& e) {
         std::fprintf(stderr, "FAIL HIP %s\n", e.what());