Add includeZipper option to mphys_get_triangulated_surface

[JavierAlbaM]

Purpose

I started having issues with the thickness constraint projection with a geometry that was working before when running on a specific number of processors, but not with others (for example, the code worked for 24 cores but not for 20). I saw that the triangulated mesh surface returned by ADFlow when using for example 20 cores had a big gap that caused the constraint projection to fail there.

The mphys triangulated-surface helper always returned the zippered wall surface (includeZipper=True). For overset meshes that surface depends on the overset hole-cut/zipper, which is partition-dependent: at some MPI rank counts wall faces near overset overlaps are blanked and not recovered for a single-family request, leaving holes in the gathered surface.

When the surface is used as a geometry reference (e.g. DVConstraints thickness/volume constraint projections) this caused projection failures that appeared or disappeared depending only on the processor count.

Expose includeZipper (default True, so no behaviour change) on mphys_get_triangulated_surface / _getTriangulatedMeshSurface and the ADflowMeshGroup pass-through, forwarding it to both getSurfaceCoordinates and getSurfaceConnectivity so callers can request the raw, processor-count independent wall surface with includeZipper=False.

Expected time until merged

Not urgent, 2 weeks

Type of change

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (non-backwards-compatible fix or feature)
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Documentation update
• Maintenance update
• Other (please describe)

Testing

Checklist

• I have run ruff check and ruff format to make sure the Python code adheres to PEP-8 and is consistently formatted
• I have formatted the Fortran code with fprettify or C/C++ code with clang-format as applicable
• I have run unit and regression tests which pass locally with my changes
• I have added new tests that prove my fix is effective or that my feature works
• I have added necessary documentation