🐛 Bug: [the-typeinator] 02. Prototypes to Classes is missing tests

[JoshuaKGoldberg]

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Bug Report Checklist

• [x] I have tried restarting my IDE and the issue persists.
• [x] I have pulled the latest main branch of the repository.
• [x] I have searched for related issues and found none that matched my issue.
• [x] This is the appropriate issue form for the bug I would like to report.

Expected

https://github.com/LearningTypeScript/projects/tree/main/projects/from-javascript-to-typescript/the-typeinator references being able to run npm run test -- and a step number.

Actual

https://github.com/LearningTypeScript/projects/tree/main/projects/from-javascript-to-typescript/the-typeinator/02-prototypes-to-classes doesn't have a test file!

Impacted Project

from-javascript-to-typescript/the-typeinator

Additional Info

See #322 -> #321 for an example of similar missing test issue.

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