- vcv/build-mac.sh: bounded Docker osxcross build (system clang, NOT LLVM-from-
source; cached toolchain image for fast reruns) → ad-hoc-signed mac-x64 +
mac-arm64 .vcvplugin. MacOSX12.3 SDK from joseluisq/macosx-sdks.
- DISTRIBUTION.md: macOS is now a host bounded cross-build, not CI-only.
All four platforms (lin/win/mac-x64/mac-arm64) now published at /next/vcv.
