Monkeypatch create_cfm to use LPS lesion mask

[tsalo]

Fixes #1023.

When an anatomical lesion ROI (*_label-lesion_roi) is provided, QSIPrep incorporates it into the anatomical-to-template registration as a cost-function mask. The mask was applied in the wrong orientation, so it had no effect at the lesion and instead perturbed the registration elsewhere.

The bug is in niworkflows' create_cfm(), which reorients the lesion to RAS but subtracts it from the LPS moving mask (QSIPrep forces orientation='LPS'), misaligning the voxel arrays. Because QSIPrep pins a released niworkflows, this PR ships the fix immediately as a monkeypatch; the same fix is going upstream in niworkflows (see nipreps/niworkflows#1050).

Changes

• qsiprep/interfaces/niworkflows.py: add _create_cfm, a corrected copy of niworkflows.interfaces.norm.create_cfm that resamples the lesion into the moving mask's voxel grid (resample_from_to(..., order=0)) instead of reorienting it to RAS, and install it over niworkflows.interfaces.norm.create_cfm at import. SpatialNormalization looks the function up as a module global, so reassigning it is sufficient — no workflow changes required.
• qsiprep/tests/test_interfaces_niworkflows.py (new): verifies the patch is installed and that a RAS lesion is excluded at the correct world location when in_file is LPS.

The patch carries a comment to remove it (plus the test_create_cfm_patch_installed test) once the niworkflows pin moves past the release containing the upstream fix.

Testing

pytest qsiprep/tests/test_interfaces_niworkflows.py — both tests pass.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 66.66667% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 47.17%. Comparing base (b142af8) to head (f354e01).

Files with missing lines	Patch %	Lines
qsiprep/interfaces/niworkflows.py	66.66%	3 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1058      +/-   ##
==========================================
+ Coverage   47.13%   47.17%   +0.04%     
==========================================
  Files          66       66              
  Lines        9836     9857      +21     
  Branches     1084     1088       +4     
==========================================
+ Hits         4636     4650      +14     
- Misses       4979     4982       +3     
- Partials      221      225       +4     

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