CUDA for AMD on Windows

A reproducible Windows setup lets CUDA-targeted applications run on AMD GPUs using ZLUDA combined with the AMD HIP/ROCm stack, validated on an AMD Radeon RX 9060 XT (gfx1200). The environment includes ZLUDA v6-preview.69, HIP SDK 6.4, and LibTorch 2.3.0 + cu118, passing cuda_check for nvcuda, cuBLAS, cuBLASLt, cuSPARSE and cuFFT, and successfully executing a 2,216,347-parameter PPO network with full forward, inference, learning and optimizer steps.