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/check_glibc_compat.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# Reject Linux release libraries that need a newer GLIBC than the target runtime.
+# Usage: check_glibc_compat.sh MAX_GLIBC LIBRARY [LIBRARY ...]
+set -euo pipefail
+
+if [[ $# -lt 2 || ! "$1" =~ ^[0-9]+\.[0-9]+$ ]]; then
+  printf 'usage: %s MAX_GLIBC LIBRARY [LIBRARY ...]\n' "$0" >&2
+  exit 2
+fi
+max="GLIBC_$1"
+shift
+command -v readelf >/dev/null || { echo 'readelf is required to check GLIBC compatibility' >&2; exit 2; }
+
+failed=0
+for library in "$@"; do
+  if [[ ! -f "$library" ]]; then
+    printf 'missing library: %s\n' "$library" >&2
+    failed=1
+    continue
+  fi
+  if ! versions="$(readelf -W --version-info "$library" 2>&1)"; then
+    printf 'cannot inspect %s: %s\n' "$library" "$versions" >&2
+    failed=1
+    continue
+  fi
+  required="$(printf '%s\n' "$versions" | grep -Eo 'GLIBC_[0-9]+\.[0-9]+' | sort -Vu | tail -1 || true)"
+  if [[ -n "$required" && "$(printf '%s\n%s\n' "$max" "$required" | sort -Vu | tail -1)" != "$max" ]]; then
+    printf '%s requires %s (target: at most %s)\n' "$library" "$required" "$max" >&2
+    failed=1
+  fi
+done
+exit "$failed"