release: 0.3.0 - #30

Summary

Prepare Wingdiff 0.3.0 for publication. This release adds GitLab merge-request support and finishes guided reviews at the Review desk.

Release notes

• Review GitLab merge requests through authenticated glab, including nested groups and explicitly trusted self-managed hosts.
• Publish pinned GitLab draft notes, summaries, reviewer states, and SHA-pinned approvals from the Review desk.
• Use GitHub- or GitLab-native labels throughout acquisition, review, update checks, and publication.
• Move directly from the final guided-review stop to the Review desk, while keeping update checkpoints as an explicit Summary action.
• Bump the root package, both workspaces, and lockfile from 0.2.5 to 0.3.0.

After this PR merges, publish a GitHub release tagged v0.3.0; the audited release workflow will verify and publish the package to npm under latest.

Verification

• npm test — 202 tests passed
• npm run typecheck
• npm run build
• npm run test:e2e — 7 Chromium tests passed
• npm run test:package — installed tarball reports 0.3.0 and exposes complete help
• npm pack --dry-run — 71 expected files, including the GitLab runtime

Risk and privacy

This PR itself changes package versions only. The included GitLab support preserves read-only acquisition and explicit publication: source remains local, credentials stay in glab, and nothing is written to the code host until the reviewer publishes. The feature and navigation changes were reviewed separately in #11 and #27.

Checklist

• The change is focused and documented.
• Tests cover the included behavior changes.
• npm test, npm run typecheck, and npm run build pass.
• Screenshots are not needed for this version-only PR; visible changes were reviewed in feat: add GitLab merge request support #11 and fix: finish guided review at review desk #27.
• I did not commit credentials, private source, or local Wingdiff data.