Enable Indonesian (id) as an in-app locale

[Copilot]

Description

Indonesian translations already existed from Weblate, but id was not enabled in runtime locale/language config. This PR enables id end-to-end so it is routable, selectable in language pickers, and accepted by locale-switching validation.

• Locale registration

  • Added id to i18n.locales in next-i18next.config.js.

• Language metadata + picker source

  • Added Indonesian to getSupportedLanguages() in src/utils/i18n/client.ts:

    { code: 'id', name: 'Bahasa Indonesia' }

  • This feeds both language picker UIs and /api/locale allowed locale validation.

• Regression coverage

  • Added src/tests/i18nClient.test.ts to assert Indonesian is present in supported language metadata.

• Testing notes

  • Included focused unit coverage for locale-list enablement behavior.

Demo

N/A (configuration/runtime locale enablement change)

Checklist

• I have read CONTRIBUTING.md in its entirety
• I have performed a self-review of my own code
• I have added unit tests to cover my changes
• The last commit successfully passed pre-commit checks
• Any AI code was thoroughly reviewed by me

Summary by CodeRabbit

• New Features
  • Added Indonesian as a supported language.
  • Indonesian is now available for localized application content.

[krokosik]

@copilot remove this test

[Copilot]

Done in b599f61.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between a3b4dc8 and b599f61.

📒 Files selected for processing (2)

• next-i18next.config.js
• src/utils/i18n/client.ts

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📝 Walkthrough

Walkthrough

The change adds Indonesian (id) to the configured i18n locales and to the supported language list. The display name is Bahasa Indonesia.

Changes

Indonesian locale support

Layer / File(s)	Summary
Register Indonesian locale next-i18next.config.js, src/utils/i18n/client.ts	The i18n configuration includes id. The supported language list includes id with the display name Bahasa Indonesia.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Suggested reviewers: krokosik

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch copilot/enable-indonesian-locale

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