engine/rr: native Ray Reconstruction stages with capture/replay and shim integration

- engine/rr: d4r's own shaders for the denoiser frame (exposure, six encoders,
  five decoders, hkpn output stage) at NGX layouts, plus PTX->GLSL/HIP packing
  scripts, reference implementations and weight extraction
- runtime.h/runtime_rr.inc, game_rr.{h,cpp}: GameDenoiser wired into the engine
  build (d4r-rr replay binary) and the D3D12 shim's feature-13 path
- shim: answer GetFeatureRequirements from d4r's own state only (the old
  cross-binary CUDA handoff crashed OptiScaler's scan); drop the core's
  CUDA GetFeatureRequirements import
- shim/harness: exact guide capture/replay of a frame's RR inputs
- kernels/rr: expanded enc0/engine prototypes; kernels/tools: ptxsim rewrite
  plus rrsim and an engine test; vulkan: ptx2glsl FP8/cooperative-matrix
  support, kvk inout buffers and KVK_DISABLE_OPTIMIZATION
- bridge: report the surface array in cuSurfObjectCreate traces
- packaging: RR settings and the ICU launch overrides in D4R_README

engine/vk_dispatch.h

@@ -20,6 +20,7 @@ struct VkTable {
     PFN_vkCmdCopyBufferToImage CmdCopyBufferToImage = nullptr;
     PFN_vkCmdCopyImageToBuffer CmdCopyImageToBuffer = nullptr;
     PFN_vkCmdDispatch CmdDispatch = nullptr;
+    PFN_vkCmdFillBuffer CmdFillBuffer = nullptr;
     PFN_vkCmdPipelineBarrier CmdPipelineBarrier = nullptr;
     PFN_vkCmdUpdateBuffer CmdUpdateBuffer = nullptr;
     PFN_vkCmdWriteTimestamp CmdWriteTimestamp = nullptr;
@@ -67,6 +68,7 @@ bool loadVulkan(PFN_vkGetInstanceProcAddr instanceProc, VkInstance instance, VkD
 #define vkCmdCopyBufferToImage ::d4r::vkTable.CmdCopyBufferToImage
 #define vkCmdCopyImageToBuffer ::d4r::vkTable.CmdCopyImageToBuffer
 #define vkCmdDispatch ::d4r::vkTable.CmdDispatch
+#define vkCmdFillBuffer ::d4r::vkTable.CmdFillBuffer
 #define vkCmdPipelineBarrier ::d4r::vkTable.CmdPipelineBarrier
 #define vkCmdUpdateBuffer ::d4r::vkTable.CmdUpdateBuffer
 #define vkCmdWriteTimestamp ::d4r::vkTable.CmdWriteTimestamp