Pass settings to MapperDelaunay in factory

[Copilot]

The mapper factory was not propagating settings to MapperDelaunay, causing caller-provided inversion settings (including use_mixed_precision) to be ignored for Delaunay meshes while working correctly for Rectangular and RectangularUniform meshes.

Changes

• Added settings=settings parameter to MapperDelaunay constructor call in mapper_from() factory function

elif isinstance(mapper_grids.source_plane_mesh_grid, Mesh2DDelaunay):
    return MapperDelaunay(
        mapper_grids=mapper_grids,
        border_relocator=border_relocator,
        regularization=regularization,
        settings=settings,  # Now propagates settings
        preloads=preloads,
        xp=xp,
    )

All three mapper types now consistently receive settings from the factory.

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.