FA4 cute supports SM 9/10/11 only, and the pinned revision forces
nvidia-cutlass-dsl==4.6.0.dev0 over the 4.8.x that flashinfer 0.7.2
needs, so import flashinfer fails in the image. GB10 FP4 attention runs
on fastvideo-kernel. Add INSTALL_FA4_CUTE (default 1), set it to 0 for
the CUDA 13 arm64 leg, still remove the wheel's stale cute files, and
check that flashinfer imports when the overlay is skipped.