chore: remove dead Ukrainian i18n override keys

[detail-app]

Issue for this PR

Closes #

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Removes 38 Ukrainian translation override keys from packages/console/app/src/i18n/uk.ts that have no live production consumer (any t("...") call-site) in packages/console/app. Each removed key also exists in en.ts, so the ...en spread continues to supply an English fallback at runtime — no behavior change, and uk.ts has no satisfies Dict constraint, so there is no type error.

The dead keys fall into groups whose consuming UI was removed in earlier commits:

• go.testimonials.* (21) — the /go testimonials section was removed.
• go.privacy.* (5) — the /go privacy section was removed.
• go.graph.free / freePill / aria (3) — the Go usage graph was redesigned; only go.graph.go / label / usageLimits remain in use.
• go.cta.start (1) — replaced by the go.cta.template / text / price / promo template.
• go.faq.a5.beforeExceptions / exceptionsLink (2) — the Go FAQ-5 answer was rewritten to use go.faq.a5.body.
• common.contactUs (1) — orphaned by the Go privacy-section removal (the distinct workspace.billing.contactUs key is still live).
• download.hero.subtitle (1) — the download hero subtitle was removed from routes/download.
• workspace.keys.table.lastUsed (1) — the "last used" column was removed from the API keys table.
• nav.changelog / nav.discord / nav.x (3) — never wired into the header; the footer.* equivalents of these are the ones actually used.

Keys kept (not dead despite a quick glance): temp.* has a live consumer in routes/temp.tsx; workspace.lite.providers.title / description / useChina and zen.api.error.regionNotAllowed are referenced only inside commented-out JSX / /* */ blocks (future-use intent), so I left them in place.

AI tooling used: Detail: Dead Code.

How did you verify your code works?

• rg confirmed zero production references (outside i18n/ and test files) for each removed key, while footer.changelog and other live keys are still referenced as a sanity check on the search.
• cd packages/console/app && npx tsgo --noEmit — passes (exit 0).
• cd packages/console/app && bun test — 7/7 pass (the two unrelated test files: providerUsage.test.ts, rateLimiter.test.ts).

Screenshots / recordings

N/A — no UI change (removed keys were never rendered).

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

History

• Last materially changed May 2026 (feat(i18n): add Ukrainian (uk) locale support anomalyco/opencode#28061 @MYMDO)

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