OpenPencil v0.8.0

v0.8.0 is a pre-release for the Rust OpenPencil stack.

Highlights

Rust desktop app is now the primary OpenPencil experience, with installer artifacts for macOS, Windows, and Linux.
op CLI ships as standalone release artifacts for the same desktop target matrix.
Rust web host is published as a GHCR Docker image for tagged releases.
Web SDK tarballs are attached for @zseven-w/op-web-sdk, @zseven-w/op-web-sdk-react, and @zseven-w/op-web-sdk-vue.
Desktop update checks can discover pre-release GitHub releases, so v0.8.0 can be offered before it is promoted to a stable release.

macOS: OpenPencil-0.8.0-<arch>-mac.dmg, plus raw desktop and op CLI archives.
Windows: OpenPencil-0.8.0-<arch>-win-setup.exe, plus portable desktop and op CLI archives.
Linux: OpenPencil-0.8.0-<arch>-linux.AppImage, OpenPencil-0.8.0-<arch>-linux.deb, plus raw desktop and op CLI archives.
Web SDK: npm tarballs for the base SDK, React adapter, and Vue adapter.

The release workflow publishes the web image to GHCR as:

docker pull ghcr.io/zseven-w/openpencil-web:v0.8.0

Because this is a pre-release, the workflow does not publish or update a latest tag.

The retired TypeScript apps and pen-* packages are not part of this release line.
The web SDK remains a read-only .op viewer SDK backed by the Rust wasm bundle.
Desktop auto-update currently checks for available releases and opens the platform installer path; it does not yet perform a signed in-place self-update.