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.

patches/zluda-llvm/README.md

@@ -0,0 +1,24 @@
+# LLVM source patches for the Windows compiler
+
+Base: ZLUDA's LLVM submodule `ff4dc1f7c9e1c64d4d69e40f4ed30c2280a96dfd`
+(LLVM 22). `build-zluda-llvm.ps1` applies these patches idempotently before
+building. ZLUDA's parent source patches remain in `patches/zluda`.
+
+`0001-backport-gfx1154.patch` adapts official LLVM
+[`7a0829e41228`](https://github.com/llvm/llvm-project/commit/7a0829e41228513299c5108685b0bc127463c6a1)
+to the older parser/ELF structures. It adds actual gfx1154 processor features,
+ISA 11.5.4, parser identity and ELF machine 0x57. It does not map gfx1154 onto
+another CPU, patch binary headers or alter existing processors' features.
+LLVM's gfx1154 uses `FeatureISAVersion11_5_Common` and the GFX11 speed model.
+LLVM code remains Apache-2.0 WITH LLVM-exception (see the dependency license).
+
+The prior offline compiler aborts on a public PTX pattern for gfx1154 with
+unrecognized-processor diagnostics and exit `0xC0000409`. After rebuilding
+LLVM, rebuild/relink ZLUDA and its offline emitter; changing native Clang
+objects alone cannot fix the translated PTX path. Run
+`scripts/windows/test-zluda-target-compilation.ps1` to compile the public
+Driver API pattern and FP16 MMA fixtures (strict/reference and WMMA modes)
+for every target without GPU work. All 33 compilations pass with correct ELF
+targets and wave32. Strict gfx12 F16 reference retains its prior FP64 helper;
+WMMA mode here is a compilation check, not a default arithmetic change.
+This checks code generation and ELF identity, not hardware execution/numerics.