ngspice upstream rev: ebdaf58ec76a06ffaac7e0f138360dd1cf5ee4b6
local patch: src/frontend/inpcom.c removes table2d/table3d from is_xspice_model detection and comment
native helper: build_ngspice_apple_slice.sh (table-free six-set helper)
wrapper helper: build_monolith_ngspice_xcframework.sh (table-free symbol validation)
wrapper projects: MonolithNgSpice.xcodeproj, MonolithXSpiceModels.xcodeproj
no build outputs, signing material, private keys, credentials, or application payloads included
