[URGENT] test(ci): align turn pins with provider cooldown window gate

[backryun]

Summary

Aligns two stale native Codex turn-pin tests with the provider-level cooldown contract introduced by #12247.

#12247 changed whole-provider cooldowns from “one recorded failure starts cooldown” to the PROVIDER_PROFILES window gate: the provider only enters cooldown after providerFailureThreshold failures within providerFailureWindowMs. The production implementation and its new focused tests are correct, but two pre-existing turn-pin tests still recorded only one Antigravity failure before asserting that the whole provider was cooling.

That drift currently fails release fast-path shards 3/4 and 4/4, including on #12258:

• native-codex-turn-pin-10379.test.ts expected a provider outage to mask an existing model lockout, but had not actually tripped provider cooldown.
• native-codex-turn-pin-model-scoped-fallback.test.ts asserted isProviderInCooldown(...) === true after only one provider-level failure.

Change

Both tests now record PROVIDER_PROFILES.oauth.providerFailureThreshold failures for Antigravity before exercising their global-cooldown assertions.

This is test-only. No production routing, cooldown, provider, dependency, or bundler behavior changes.

Validation

Before the fix, the exact two files reproduced 2 failures / 15 tests locally, matching CI.

After the fix, the turn-pin files plus #12247's provider cooldown suites pass:

• 38/38 tests passed
• Prettier passed
• ESLint passed
• git diff --check passed

Unblocks the inherited release checks on #12258.

[backryun]

Closing as superseded by #12255 and #12263. The release branch now contains the same turn-pin window-gate alignment plus the required Stryker tap registration, so this PR has no unique change left to preserve.

[diegosouzapw]

Obrigado pelo diagnóstico e fix rápidos, @backryun — o root cause e a direção estavam exatamente certos! 🙏 Enquanto esta PR aguardava, o mesmo alinhamento (loop até providerFailureThreshold nos dois testes turn-pin) chegou à release/v3.8.51 via #12255, e por tocar as mesmas linhas esta branch ficou em conflito. O conteúdo dela está integralmente coberto na base atual (git show origin/release/v3.8.51:tests/unit/native-codex-turn-pin-model-scoped-fallback.test.ts já contém o gate por janela). Deixo aberta para o @diegosouzapw decidir o fechamento como subsumida.