TL;DR: Add an experimental FSR Ray Regeneration backend on Windows, run the K

network natively on HIP with Vulkan->HIP shared memory, extend K kernels to
gfx11 (RDNA3), and add dependency/packaging/test tooling around them.

Windows: FSR RR backend, native HIP K runner, gfx11 K kernels, tooling

FSR Ray Regeneration (experimental)
- Add fsr_rr_backend.{h,cpp}, fsr_rr_passes.h and the fsr_rr/ prepare and
  compose compute shaders. They run AMD's FidelityFX denoiser
  (amd_fidelityfx_denoiser_dx12.dll, SDK 2.3, not bundled) on a private
  vkd3d-proton device.
- Add the amdxc64 shim (tools/windows/amdxc64_shim) and two vkd3d-proton
  patches for libcxx includes. AMD's amdxc64.dll is never loaded.
- d4r_nvngx_windows: RrFeature now selects between the native DLSS RR
  backend and the FSR backend (D4R_RR_BACKEND=fsr). After the denoiser it
  runs an internal Super Sampling stage (feature 1) to upscale. If SR is
  unavailable and output != render size, the frame fails; it is never
  returned noisy.
- d4r.ini / player_config: new [RayReconstruction] FsrDenoiser,
  FsrStabilityBias (auto or >= 0) and FsrDetail (0-1), with validation, and
  matching D4R_FSR_* environment variables.
- Add the FSR RR fixture, output-check and ngx test scripts, and a shader
  compile script.

Native HIP K runner (Windows)
- CMake: add d4r_engine_k_hip (d4r-k-hip) plus separate volk/engine copies,
  because VK_USE_PLATFORM_WIN32_KHR changes volk's entry points.
- Share Vulkan memory with HIP via Win32 opaque handles on Windows
  (VK_KHR_external_memory_win32) and via fds on Linux. Handle types are now
  intptr_t, and the platform choice is in D4R_EXT_MEMORY_* macros.
- HipNetwork: add debugRepeatHashes and debugNodeMicros, exposed as
  D4R_HIP_REPEAT_CHECK, D4R_HIP_REPEAT_ALL and D4R_HIP_NODE_PROFILE in
  replay.cpp.
- replay.cpp: display-resolution-motion frames (FrameFlagDisplayMotion) no
  longer require near2rnd == out2rnd. Both values must still be in (0, 1].

K kernels on gfx11
- Allow position-token and enc1 tiling on __GFX11__ as well as gfx12.
- Add an opt-in ds_bpermute cross-half exchange
  (D4R_WINDOWS_GFX11_DS_EXCHANGE, enabled for K on Windows gfx11). M keeps
  its LDS path.
- Fix a block-barrier race in the position layer. Without POS_VSHARE a fast
  wave could overwrite its hb rows while a slower wave still read them for a
  later head, giving rare wrong results on gfx1101 (enc0 outputs differing
  between identical launches).

Packaging and install
- install.bat, d4r.ini, WINDOWS_README: FSR option, and
  install_dependencies.py to install pinned NVIDIA dependencies with staged,
  hash-verified replacement and rollback.
- Update the release package, local package refresh and test scripts.
- Add the InteropBatchInputCopies option (default false). Batching is faster
  on some synthetic runs, but player temporal exactness is unresolved.

Tooling and tests
- K model: capture_k_weights, build_k_model, compare_k_outputs,
  benchmark_k_hip, build_capture_runtime, test_k_model and the
  zluda-k-output-capture patch. Captured weights and models are private
  local assets and must not enter release archives.
- Synthetic probes: test_m_ngx, test_sr_dynamic,
  prepare_rr_dynamic_fixture and the d3d12/rr_ngx probe updates.
- Add tests/windows/test_install_dependencies.py.

Docs
- Update the windows-fsr-rr, k-performance, local-package, rr-interop and
  rr-model-cache docs. Add windows-parity-handoff.md and
  windows-parity-continuation-prompt.md.

tools/windows/diagnostic.h

@@ -120,6 +120,7 @@ struct Args {
     std::string barrier_mode = "legacy";
     bool early_indirect = false;
     bool player_mode = false;
+    bool reset_each_frame = false;
     std::string ngx_core, dlss_dll;
     std::string nvapi_dll;
     std::string ngx_abi = "driver";
@@ -131,6 +132,7 @@ struct Args {
     std::string ngx_mode = "init";
     unsigned preset = 11;
     unsigned ngx_create_flags = 0;
+    unsigned ngx_quality = 2;
     unsigned output_width = 512, output_height = 288;
     unsigned input_width = 0, input_height = 0;
     std::string fixture_dir;
@@ -162,6 +164,7 @@ struct Args {
             }
             else if (key == "--early-indirect") early_indirect = value == "1";
             else if (key == "--player-mode") player_mode = value == "1";
+            else if (key == "--reset-every-frame") reset_each_frame = value == "1";
             else if (key == "--ngx-core") ngx_core = value;
             else if (key == "--dlss-dll") dlss_dll = value;
             else if (key == "--nvapi-dll") nvapi_dll = value;
@@ -190,6 +193,12 @@ struct Args {
                 if (end != value.size() || (ngx_create_flags != 0 && ngx_create_flags != 11))
                     throw std::runtime_error("ngx-create-flags must be 0 or 11 (HDR, low-resolution MV, inverted depth)");
             }
+            else if (key == "--ngx-quality") {
+                size_t end = 0;
+                const auto parsed = std::stoul(value, &end);
+                if (end != value.size() || parsed > 5) throw std::runtime_error("ngx-quality must be 0..5");
+                ngx_quality = static_cast<unsigned>(parsed);
+            }
             else if (key == "--ngx-output-resolution") {
                 const auto separator = value.find('x');
                 if (separator == std::string::npos) throw std::runtime_error("Output resolution must be WIDTHxHEIGHT");