chore(version): release v0.2.0

[WH-2099]

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Related Issue

Closes #34

Summary

• bump the package version from 0.1.2 to 0.2.0 in pyproject.toml and refresh the editable package metadata in uv.lock
• add the generated v0.2.0 changelog entry for the changes merged since v0.1.2
• refresh the lockfile content produced alongside the version bump
• validation: make check

Checklist

• This pull request links the issue it resolves or advances
• This pull request title follows Conventional Commits, and any breaking change is marked with !
• If CLA Assistant prompted me, I signed CLA.md in the pull request conversation