fix: normalize artist timestamp units for New additions

[saschabuehrle]

Bug

Issue #289 reports that timestamps in the New additions artist section can show incorrect large integer-like values.

Fix

This PR normalizes artist timestamp values returned by the API before rendering:

• adds a small parseApiDate helper in frontend/src/api/library.ts
• handles both UNIX seconds and UNIX milliseconds
• preserves existing behavior for ISO date strings
• safely skips invalid values

This keeps relativeTime(...) calculations correct in the library browse view.

Testing

• cd frontend && pnpm run check-types
• cd frontend && pnpm exec eslint src/api/library.ts

Happy to address any feedback.

Greetings, saschabuehrle

[github-actions]

Thank you for the PR! The changelog has not been updated, so here is a friendly reminder to check if you need to add an entry.

[saschabuehrle]

Thanks for the reminder — I added a changelog entry under Unreleased for this fix and pushed the update.\n\nGreetings, saschabuehrle

[semohr]

Thank you for the PR!

I will have a closer look over the weekend. As a short remark, did you have a look at the helper in components/common/unit/time.ts? I think your new function either already exists or should be moved there.

Best, Sebastian

[saschabuehrle]

Great point, thanks. I moved the date parsing into the shared helper and now reuse it from so the conversion logic lives in one place.

Greetings, saschabuehrle

[saschabuehrle]

Follow-up with explicit paths: helper is now in frontend/src/components/common/units/time.tsx and library conversion calls it from frontend/src/api/library.ts.

Greetings, saschabuehrle

[semohr]

Do you know which endpoints return UNIX seconds and which return milliseconds? It might be cleaner to fix this inconsistency in the backend instead of a workaround in the frontend.

[semohr]

Feel free to use 1.2.2 here already.

As an fyi:
We are mainly developing on the releases/2.0.0 branch at the moment (latest docker tag).
Since this is a minor fix tho let's include it in the stable version based on main too. I gona rebase or merge the changes into the release branch once they hit main 👍

[semohr]

Appreciate you trying to fix the session type hints. Not sure why this is broken at the moment but it has nothing to do with your PR. Feel free to ignore it 🙃

[semohr]

@saschabuehrle Since this PR appears to be entirely AI-generated, I’m going to close it. We are not opposed to AI-generated contributions, but communication should be handled by a real person, and it should be clearly disclosed upfront if the content is AI-generated.

Please ensure this is communicated transparently in the future.