feat: add d4r inference engines and Windows parity tooling

Add native K/M/RR inference engines, HIP kernels, replay and validation
harnesses, and Windows DLSS setup and runtime support. Include GPU
profiling tools, build and packaging scripts, platform integration
patches, and implementation documentation.

scripts/windows/test-wmma-f16.ps1

@@ -0,0 +1,24 @@
+[CmdletBinding()]
+param([string]$HipRoot, [string]$PackageRoot, [string]$OutputDirectory)
+$ErrorActionPreference='Stop'
+$repo=[IO.Path]::GetFullPath((Join-Path $PSScriptRoot '../..'))
+if (!$HipRoot) { $HipRoot=Join-Path $repo '.tools/therock-10.2.0a20260929/_rocm_sdk_core' }
+if (!$PackageRoot) { $PackageRoot=Join-Path $repo 'dist/windows-rdna4-command-list' }
+if (!$OutputDirectory) { $OutputDirectory=Join-Path $repo ('test-results/wmma-f16-' + (Get-Date -Format 'yyyyMMdd-HHmmss-fff')) }
+$compiler=Join-Path $HipRoot 'lib/llvm/bin/clang++.exe'
+if (!(Test-Path -LiteralPath $compiler)) { $compiler=Join-Path $HipRoot 'bin/clang++.exe' }
+New-Item -ItemType Directory -Force $OutputDirectory | Out-Null
+$module=Join-Path $OutputDirectory 'wmma_f16_compare.hsaco'
+& $compiler -x hip -std=c++17 --offload-arch=gfx1201 --offload-device-only --no-gpu-bundle-output `
+    -mno-wavefrontsize64 -nogpuinc -nogpulib -O3 (Join-Path $repo 'tools/windows/wmma_f16_compare.hip') -o $module
+if ($LASTEXITCODE) { throw 'WMMA arithmetic probe compilation failed.' }
+$previousPython=$env:PYTHONPATH
+try {
+    $env:PYTHONPATH="$(Join-Path $repo '.tools/python/vendor');$previousPython"
+    & python.exe (Join-Path $repo 'tools/windows/wmma_f16_compare.py') `
+        --probe (Join-Path $PackageRoot 'bin/d4r_native_replay_probe.exe') --module $module `
+        --hip-root $HipRoot --output-dir $OutputDirectory
+    if ($LASTEXITCODE) { throw "WMMA arithmetic diagnostic failed; logs: $OutputDirectory" }
+} finally { $env:PYTHONPATH=$previousPython }
+# A successful diagnostic is not acceptance of native FP16 accumulators for K.
+# Read baselineEquivalent/gameOptimizationAccepted in validation.json.