ENH: make ApplyToImageMetadata available in Python wrapping

[dzenanz]

PR Checklist

• No API changes were made (or the changes have been approved)
• No major design changes were made (or the changes have been approved)
• Added test (or behavior not changed)
• Updated API documentation (or API not changed)

[dzenanz]

Actions update split out into #6806.

[greptile-apps]

Greptile Summary

This change exposes transform metadata application to Python and adds a Python test for that behavior. The new test always requests 3D wrapped image and transform types, but its CMake registration is not limited to builds that enable dimension 3. As a result, Python wrapping builds configured without 3D support can register a test that cannot run.

T-Rex validation blocked

The direct reduced-dimension configuration check could not complete because the cmake tool is missing. The attempted configuration with ITK_WRAP_PYTHON=ON and ITK_WRAP_IMAGE_DIMS=2 exited with status 127 before CMake could generate the test manifest or run the test.

Confidence Score: 4/5

The change is not safe for Python wrapping configurations that intentionally exclude 3D image types until the test registration is gated by the available wrapped dimensions.

One non-security build-compatibility issue remains: the test registration does not match the fixed 3D types used by the test. The source relationship is clear, although the reduced-dimension build could not be configured locally because CMake is unavailable.

Files Needing Attention: Modules/Core/Transform/wrapping/test/CMakeLists.txt needs a dimension-3 wrapping guard around itkApplyToImageMetadataTest; Modules/Core/Transform/wrapping/test/itkApplyToImageMetadataTest.py establishes the test's fixed 3D dependency.

T-Rex Logs

What T-Rex did

• The 2D wrapping probe script was uploaded and identified as the minimal configuration probe.
• The first blocked probe output log was uploaded, showing the attempted command, the working directory, the missing cmake failure, and exit status 127.
• The repeated blocked probe output log was uploaded, providing corroborating evidence of the same missing cmake failure and exit status 127.

_{Ran code and verified through T-Rex}

_{Reviews (1): Last reviewed commit: "ENH: make ApplyToImageMetadata available..." | Re-trigger Greptile}

[dzenanz]

This is ready for review. CI is green.