chore: version extension

[grikomsn]

Summary

• Bump the extension from 0.0.2 to 0.0.3.
• Generate the changelog entry for the model-metadata patch.
• Update package-lock.json to match the release version.

Release validation

• npm test — 15 tests passing
• npm run package
• npx vsce ls

The automated Changesets workflow could not create this pull request because repository policy disallows GitHub Actions from creating or approving pull requests. This version PR was generated locally using the documented fallback.

Merging this PR will trigger the repository release workflow to publish the 0.0.3 VSIX and create the matching GitHub release.

[pullfrog]

• Inspect PR diff and existing review context
• Validate version and packaging changes
• Update PR summary and submit review

  ^{｜ View workflow run ｜ via Pullfrog ｜ Using GPT Terra ｜ 𝕏}