Make windows install work through rimraf

[neubig]

• A human has tested these changes.

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Why

npm install was not working on windows due to platform-incompatible rm -rf.

Summary

• uses the rimraf library instead

Type

• Bug fix
• Feature
• Refactor
• Breaking change
• Docs / chore

[neubig]

@OpenHands fix merge conflicts and merge this PR in to main.

[openhands-ai]

I'm on it! neubig can track my progress at all-hands.dev

[openhands-ai]

Final update since my last summary:

• Fully addressed the request:

  • Resolved the merge conflicts on make-windows-install-work
  • Preserved the Windows fix (rimraf dist) while keeping main's dependency updates
  • Verified locally with npm ci, npm run build, and npm test
  • Pushed the fix to the PR branch
  • Waited for GitHub CI to finish successfully
  • Merged PR Make windows install work through rimraf #137 into main

• Instructions were followed faithfully:

  • Used GitHub API/CLI rather than browser flows
  • Updated the existing PR branch instead of creating a new PR
  • Did not push directly to main
  • Merged only after the PR became clean and checks passed

• Changes were concise:

  • Only the conflicted dependency files were touched as part of conflict resolution
  • No extraneous repository changes were introduced beyond what was necessary to reconcile main with the rimraf fix

New final state:

• PR Make windows install work through rimraf #137 is merged
• PR branch received commit 1a01c4b
• Squash merge commit on main is 748db5f