Replace -cubin -arch=sm_XX with -fatbin -gencode for all 3 GPU archs. All include_bytes! paths updated from .cubin to .fatbin. Removes CUDA_COMPUTE_CAP env var dependency. cuModuleLoadData transparently selects the right arch from the fat binary at runtime. Fixes CUDA_ERROR_NO_BINARY_FOR_GPU on H100 (sm_90). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>