- add .github/workflows/vcv-plugin.yml: official rack-plugin-toolchain
(pinned to commit 4fd1318, Rack SDK 2.6.6, image v19) cross-builds the
MEMLNaut plugin for lin-x64/win-x64/mac-x64/mac-arm64 on CI, uploads
.vcvplugin artifacts, and attaches them to GitHub Releases on v* tags.
- add vcv/DISTRIBUTION.md: build + publish flow, how to add CI release
artifacts to meml.lnfinitemonkeys.org/next/vcv.
- add vcv/.gitignore for build products (build/, dist/, *.vcvplugin, binaries).
- BUILDING.md: point at DISTRIBUTION.md; note make dist supersedes Makefile.dist.
Linux x64 .vcvplugin built + verified locally via make dist and published to
/next/vcv (additive subdir). Windows/macOS deferred to CI per prod-host policy.