* fix(codex): fail the stream when the websocket closes before a terminal event
* docs(changelog): add fragment for Codex websocket premature-close fix
* chore(quality): rebaseline file-size baselines for #12737 test and executor growth
* fix(codex): log websocket failures and harden premature-close tests
Review follow-up: failController now logs the failure (code + message)
via nextInput.log, and onclose surfaces the WS close code/reason in the
log line (the public payload stays sanitized through the allowlist).
Adds regression tests for the onerror-before-onclose sequence and a
close with zero prior events.
* chore(quality): re-measure the #12737 codex.ts file-size rebaseline after the release merge
The PR's own annotation was written against base 1505 and the frozen cap was
already at 1528 on release/v3.8.51 (which grew the file independently). With
this PR's +13 lines the merged file measures 1530, so the frozen entry moves
1528->1530 (+2 of genuine PR growth; the remaining 11 lines fit the headroom
the tip already had). No other frozen entry touched.
---------
Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>
Validado em lote numa worktree combinada com os 14 PRs desta campanha de error-boundary sobre o tip de `release/v3.8.51`: `typecheck:core` limpo e **120/120** nos 23 arquivos de teste que os PRs trazem.
Um ponto que só apareceu no tree combinado: **#12465 e #12466 criam o mesmo arquivo novo** `open-sse/utils/streamReadiness.ts` (que não existe no tip) com desenhos divergentes de cancelamento — `cancelled` + `releaseLock` imediato num, `readInFlight`/`cancelRequested` com `cancelReader` fire-and-forget no outro. Adotei a versão do #12466, que difere e defere o release do lock para quando a leitura em voo termina, e validei a escolha rodando as suítes dos **dois** PRs contra ela: 21/21 no readiness compartilhado e 22/22 incluindo o boundary do Perplexity.
