refactor: iterate over LLM responses

[andylolz]

Fixes #66.

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Pull request checklist

• [x] I have linked my PR to an issue
• [x] I’ve used conventional commits
• [x] My branch is up-to-date with main
• [ ] Where appropriate, I have added or updated tests
• [ ] Where appropriate, I have updated documentation to reflect my changes

[andylolz]

Marking this is draft – I’ll update this once #76 is in.

[andylolz]

Closing because I’ve rolled this change into #78.