[2026春季][T1-1-1] HyosungSink

[HyosungSink]

Summary

• Connect T1-1-1 operators to the InfiniCore Python use_ntops path: rad2deg, copysign, lcm, lgamma, nextafter.
• Add Python-level NVIDIA tests that verify use_ntops dispatch and PyTorch reference parity.
• Merge the Iluvatar validation build adjustment into this PR branch.

Validation

• NVIDIA L4/sm_89: source ../scripts/dev-env.sh && python test/infinicore/ops/rad2deg.py --nvidia -> passed
• NVIDIA L4/sm_89: source ../scripts/dev-env.sh && python test/infinicore/ops/copysign.py --nvidia -> passed
• NVIDIA L4/sm_89: source ../scripts/dev-env.sh && python test/infinicore/ops/lcm.py --nvidia -> passed
• NVIDIA L4/sm_89: source ../scripts/dev-env.sh && python test/infinicore/ops/lgamma.py --nvidia -> passed
• NVIDIA L4/sm_89: source ../scripts/dev-env.sh && python test/infinicore/ops/nextafter.py --nvidia -> passed

Notes

• This PR only adds the Python use_ntops path; it does not add InfiniOP native, pybind, or C++ bridge implementations.
• Screenshots for the validation commands will be added before marking ready for review.