i18n: locale-aware relative time formatting

[james2177]

Description

src/lib/time.ts likely formats relative timestamps (e.g. "2m ago") in English only — migrate it to Intl.RelativeTimeFormat or the i18n library's equivalent so it respects the active locale.

Requirements and context

• Depends on the i18n infrastructure issue in this batch
• Preserve existing output for the English locale exactly, to avoid unrelated test churn

Suggested execution

1. Fork the repo and create a branch
   git checkout -b feature/i18n-relative-time
2. Implement changes
   • Update src/lib/time.ts to accept/use the active locale
3. Test and commit
   • Extend src/lib/time.test.ts with locale-specific cases

Example commit message:
feat: locale-aware relative time formatting

Guidelines

• Assignment required before starting — comment on the issue and wait to be assigned.
• PR description must include: Closes #[issue_id]
• Complexity: High (200 points)

[lemarjohnny781]

@lemarjohnny781 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

i would like to work on this issue please

ℹ️ Repo Maintainers: To accept this application, review their application or assign @lemarjohnny781 to this issue.

[drips-wave]

Congratulations, @lemarjohnny781! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @lemarjohnny781: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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