chore(release): prepare 0.2.0

[soulbah]

Change

Prepare the Rootform 0.2.0 release request. package.json names 0.2.0, the changelog releases the existing entries under ## 0.2.0, and the documentation names the 0.2.0 archives, image and Action version and downloads its examples from the v0.2.0 tag. public-export.json names Engine 7b7f49c3a88175bf4fad17021b772fd5a19542ba.

• The release request also covers the CI recipes in docs/integrations/ci/: the Action version input and the ROOTFORM_VERSION defaults of the generic, GitLab and Azure recipes and their guide. They still installed 0.1.0, which is no longer published; prepare-release now rewrites them and --check refuses a stale one.
• The Playground Forms are regenerated with Rootform 0.2.0 from that Engine commit. Only the generator version and the resulting digests change.
• The changelog notes that a reopened Form keeps provider icons and labels when it records the Dialects embedded in the same release.
• The installation guide lists the channels available at release: the install scripts, archives, Homebrew and the container image. WinGet returns once its package is accepted.
• The VS Code and Zed pages install the extensions from the editors repository: the packaged VSIX for VS Code (Node.js 22 or later and npm), a dev extension for Zed.

Validation

• bun scripts/prepare-release.ts --check: {"engine_commit":"7b7f49c3a88175bf4fad17021b772fd5a19542ba","tag":"v0.2.0","version":"0.2.0"}.
• ROOTFORM_BIN=<rootform 0.2.0 darwin_arm64> bun run verify: distribution verification passed, including the repository check, the documentation pages with no dangling link, all script tests, the Playground Forms reproduced byte for byte and the documented command markers.
• The 0.2.0 binary is the darwin_arm64 executable of a local Engine handoff built at 7b7f49c3a881 (bun scripts/build-handoff.ts --version=0.2.0), sha256 65e59793486c95015b62298989a4b7c737cad0cc834496f0dca01ef58a993241; rootform version prints rootform 0.2.0.
• A saved Playground Form reopened with that binary embeds the full presentation catalog; a Form recording a Dialect that is not embedded, or embedded with other content, keeps the empty catalog.

[rootform-contribution-delivery]

Contribution progress

Source: 7445189ac04d9543a759ea5f3a50b945b8a2440e

Selected validations: docs, cli, dialects, policies, examples, distribution, tooling, generated. Repository safety always runs.

Stage	Status
Public validations	Passed (checks)
Documentation preview	Passed (open preview)
Development integration	Timed out
Staging sites	Timed out
Release	Included in v0.2.0

Delivery stopped waiting after repeated external delays. No deployment success is claimed. A maintainer can request /rootform retry on this PR.

Integration and staging follow the merged commit. Releases are published from main; the Release row follows them.