Add CUDA NGX Ray Reconstruction support

Run the signed CUDA-capable denoiser through feature 13 with independent D/E presets, pre-Init discovery, per-frame guide and camera snapshots, normalized integer guide staging, paired alpha output, and recorded-resource retirement.

Add the required ZLUDA/LLVM patch, behavioral configuration tests, GPU harness coverage, optional denoiser installation and packaging, and tested support limitations. Preserve upstream attribution and distinguish LLVM licensing from the ZLUDA portions of the patch.

scripts/package_release.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# Modified in this fork for CUDA Ray Reconstruction support and validation (2026).
 # Builds the drag-in release: a zip whose contents are extracted into the folder that holds a game's
 # main .exe, like an OptiScaler release. packaging/D4R_README.txt describes the result.
 #
@@ -26,6 +27,7 @@
 # those is up to whoever publishes it (they are not covered by d4r's license):
 #   D4R_BUNDLE_DLSS  local nvngx_dlss.dll for texture builds (pinned by install.sh in installer mode)
 #   D4R_BUNDLE_NGX   local _nvngx.dll (only required for D4R_BUNDLE_NVIDIA=1)
+#   D4R_BUNDLE_DLSSD optional nvngx_dlssd.dll to include for Ray Reconstruction (full variant only)
 #   D4R_BUNDLE_TEX   directory with texture-kernel code objects (kernels/build.sh tex), one subdirectory
 #                    per target folder (gfx1101, gfx1201, gfx1201-fp8, ...), or a flat gfx1101 directory for
 #                    older builds
@@ -111,6 +113,7 @@ if [[ "$VARIANT" != clean ]]; then
     cp "$D4R_BUNDLE_DLSS" "$STAGE/d4r/nvngx_dlss.dll"
     : "${D4R_BUNDLE_NGX:?set D4R_BUNDLE_NGX}"
     cp "$D4R_BUNDLE_NGX" "$STAGE/d4r/ngx/_nvngx.dll"
+    [[ -z "${D4R_BUNDLE_DLSSD:-}" ]] || cp "$D4R_BUNDLE_DLSSD" "$STAGE/d4r/nvngx_dlssd.dll"
   else
     cp "$ROOT/install.sh" "$STAGE/install.sh"
     chmod +x "$STAGE/install.sh"