Build a MeshPickTSLNodes set from a plain IUniform record — for callers that
don't own persistent wrapper-side UniformNodes (the codegen/parity harness and
the MESH_PICK_SOURCE ShaderSource factory). Symmetric with
buildLinePickTSLNodesFromUniforms / buildGSplatPickTSLNodesFromUniforms.
Build a
MeshPickTSLNodesset from a plainIUniformrecord — for callers that don't own persistent wrapper-sideUniformNodes (the codegen/parity harness and theMESH_PICK_SOURCEShaderSource factory). Symmetric withbuildLinePickTSLNodesFromUniforms/buildGSplatPickTSLNodesFromUniforms.