cuda_core: fix SPDX identifiers and enforce Apache-2.0 headers

[rwgk]

Summary

• Correct the affected cuda_core/ SPDX-License-Identifier headers so they consistently use Apache-2.0.
• Refactor toolshed/check_spdx.py so expected license identifiers can be enforced by path prefix, and require Apache-2.0 for files under cuda_core/.
• Keep focused regression coverage in toolshed/test_check_spdx.py for the new cuda_core/ rule, path normalization, and the existing staged-file copyright autofix flow.

Validation

• pre-commit run --all-files
• pixi run --manifest-path "cuda_pathfinder" pytest toolshed/test_check_spdx.py -q
• Output after locally and temporarily reverting commit 7738635:

$ pre-commit run --all-files
ruff check...............................................................Passed
ruff format..............................................................Passed
Check SPDX Headers.......................................................Failed
- hook id: check-spdx
- exit code: 1

INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graphdef.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_utils/driver_cu_result_explanations.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graphdef_lifetime.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_utils/clear_error_support.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/helpers/collection_interface_testers.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_utils/enum_explanations_helpers.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graphdef_integration.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graph_memory_resource.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_include/utility.hpp'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graph_builder_conditional.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/test_utils_enum_explanations_helpers.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/test_utils.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/test_optional_dependency_imports.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_device_launch.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_utils/runtime_cuda_error_explanations.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graphdef_errors.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/test_linker.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_utils/driver_cu_result_explanations_frozen.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/helpers/graph_kernels.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_utils/__init__.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/helpers/marks.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graphdef_mutation.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graph_builder.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_graph_update.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/test_cuda_utils.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/pytest.ini'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_utils/runtime_cuda_error_explanations_frozen.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/graph/test_options.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/cython/test_get_cuda_native_handle.pyx'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/cython/test_cython.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/test_program.py'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/cuda/core/_include/layout.hpp'
INVALID SPDX license identifier 'LicenseRef-NVIDIA-SOFTWARE-LICENSE' (expected 'Apache-2.0') in 'cuda_core/tests/test_helpers.py'

Prevent markdown files in docs/source directories....(no files to check)Skipped
check for added large files..............................................Passed
check for case conflicts.................................................Passed
check docstring is first.................................................Passed
check for merge conflicts................................................Passed
check for broken symlinks................................................Passed
check toml...............................................................Passed
check yaml...............................................................Passed
debug statements (python)................................................Passed
fix end of files.........................................................Passed
mixed line ending........................................................Passed
trim trailing whitespace.................................................Passed
rst ``code`` is two backticks............................................Passed
rst directives end with two colons.......................................Passed
rst ``inline code`` next to normal text..................................Passed
mypy-pathfinder..........................................................Passed
Lint GitHub Actions workflow files.......................................Passed
cython-lint..............................................................Passed

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[rwgk]

/ok to test

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