v0.12.0

Cross-built Selaenium engine libraries for Linux, macOS, and Windows,
each on x86_64 and arm64, plus Linux musl on both architectures and
FreeBSD x86_64. Official Java jars, Ruby gem, Python wheel, npm tarball,
.NET NuGet package, Crystal shard source, and Julia package source are
built in the pinned Universal Linux image.
Every artifact has a SHA256 checksum.

Registry publishing remains separate; these package files are release
downloads and do not require registry credentials.

All nine libraries built successfully. The Linux x86_64 library was
loaded and checked for the complete exported C ABI. This release does
not claim a browser or desktop test pass on every target platform.