fix(i18n): unescape HTML entities in UI strings

[dionjoshualobo]

Summary

Fixes HTML entity escaping (< and >) being rendered literally in the UI instead of as angle brackets. Replaces escaped entities with raw < and > characters in the English source strings and synchronizes the updated placeholder strings across all 42 locale files.

Before: UI showed claude/<provider>/<model>
After: UI shows claude/<provider>/<model>

Related Issues

• Closes #
• Related to #

Validation

Choose the change type and focused loop from the
Contribution Golden Path. The full unit suite,
Vitest, the 60% coverage gate, and the production build all run in CI on this PR (#8329):

• Change type: i18n
• Focused tests and category gates from the golden path
  • npm run i18n:sync-ui:dry
  • npm run i18n:check-ui-coverage
  • npm run i18n:check-value-drift (pre-existing stale translations in it and ru)
  • npm run i18n:check-glossary
  • npm run check:cli-i18n
  • npm run lint (currently fails due to unrelated pre-existing tests/unit/vertex-functioncall-id-3440.test.ts ESLint errors)
• Reconciled with the current active release base; focused checks rerun afterward
• Production-code changes include a new or updated automated test in this PR
• SonarQube PR analysis is green or any remaining issues are explicitly documented below

Tests Added Or Updated

• No automated tests were added or modified.
• This PR only updates i18n locale message files.

Coverage Notes

This PR modifies only locale JSON files under src/i18n/messages/ and does not change application logic.

Coverage is not affected because no executable code was modified.

Reviewer Notes

• This is a data-only i18n change.
• The change updates placeholder English strings used as locale fallbacks by replacing escaped HTML entities (< / >) with literal angle brackets (< / >).
• All affected locale files have been synchronized with the updated English source strings.
• i18n:check-value-drift currently reports pre-existing stale translations for three keys in the Italian (it) and Russian (ru) locales.
• npm run lint currently reports unrelated pre-existing ESLint errors in tests/unit/vertex-functioncall-id-3440.test.ts.

[Copilot]

Pull request overview

This PR updates UI locale message catalogs under src/i18n/messages/ to stop rendering double-escaped angle-bracket placeholders (e.g. <provider>) and synchronizes the resulting English source-string changes across all supported locales.

Changes:

• Replace HTML-entity placeholders like <provider> / <model> with literal <provider> / <model> in Claude Code discovery-alias related UI strings across locales.
• Update the OmniGlyph “gates” explanatory string that embeds a <code> snippet (but see review comment about rich-text parsing).
• Sync locale files (reordering and adding/removing keys) as part of the UI i18n synchronization.

Commands run (custom):

• None (review only; relied on provided diffs and code inspection).

Coverage result (custom):

• Not evaluated here (data-only JSON changes; no executable code changes expected).

Reviewed changes

Copilot reviewed 43 out of 43 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/i18n/messages/ar.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/az.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/bg.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/bn.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/cs.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/da.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/de.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/en.json	Source English string updates for angle-bracket placeholders and OmniGlyph copy
src/i18n/messages/es.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/fa.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/fi.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/fr.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/gu.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/he.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/hi.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/hu.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/id.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/in.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/it.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/ja.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/ko.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/mr.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/ms.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/nl.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/no.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/phi.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/pl.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/pt-BR.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/pt.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/ro.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/ru.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/sk.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/sv.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/sw.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/ta.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/te.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/th.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/tr.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/uk-UA.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/ur.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/vi.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/zh-CN.json	Locale sync for updated placeholder strings and related UI keys
src/i18n/messages/zh-TW.json	Locale sync for updated placeholder strings and related UI keys

[diegosouzapw]

Thanks for the PR. Please address the mandatory items (tests and/or merge blockers) in this branch, then rerun checks before /merge-prs.

[diegosouzapw]

Thanks for the PR. Please address the mandatory items (tests and/or merge blockers) in this branch, then rerun checks before /merge-prs.

[diegosouzapw]

Thanks for the PR. Please address the mandatory items (tests and/or merge blockers) in this branch, then rerun checks before /merge-prs.

[diegosouzapw]

Thanks for the PR. Please address the mandatory items (tests and/or merge blockers) in this branch, then rerun checks before /merge-prs.

[diegosouzapw]

Obrigado pelo PR. Mantive a revisão de fix-in-place e não foi possível concluir o ajuste completo aqui:

• Para os PRs em fork: não consigo aplicar push de correção diretamente na sua branch.
  Por favor, faça um rebase/sync com release/v3.8.50, resolva conflitos se houver, e rode os checks dessa branch.
  Se preferir, posso aplicar a correção na próxima rodada assim que você mandar o branch atualizado ou confirmar que o PR está limpo pra esse merge.

[dionjoshualobo]

I have fixed the merge conflicts. The failing checks are non-blocking and advisory, and do not have anything to do with the changes in this PR.

[diegosouzapw]

This PR's change (unescaping claude/<provider>/<model> → claude/<provider>/<model> in the CC discovery-alias keys featureFlagExposeCcDiscoveryAliasesDescription, ccDiscoveryInfoTooltip, ccAliasSectionHint across locales) is fully superseded by upstream fix #9917 (fix(i18n): re-escape CC discovery-alias angle brackets for next-intl).

#9917 deliberately keeps those angle brackets HTML-entity ESCAPED because next-intl interprets raw claude/<provider>/<model> as rich-text tags and logs INVALID_MESSAGE/UNCLOSED_TAG on provider detail pages. It also added the regression guard tests/unit/i18n-cc-alias-unclosed-tags.test.ts, which asserts the escaped form across all locales and passes on the release tip.

Rebasing this branch onto release/v3.8.50 and resolving the resulting conflicts in favor of the release state (escaped form + existing regression test) yields a branch identical to the release tip (no net change). The proposed unescape is thus obsolete and should not be merged.

[mergify]

⚠️ The sha of the head commit of this PR conflicts with #8875. Mergify cannot evaluate rules on this PR. Once #8875 is merged or closed, Mergify will resume processing this PR. ⚠️