3 polish items from R4 acceptance audit (operator-approved scope):
- P1: BatchListTab status filter dropdown now renders translated labels (t("batchStatusInProgress") etc.) instead of raw snake_case ("in_progress", "cancelling"). STATUS_LABELS refactored to STATUS_LABEL_KEYS — a single map from raw/composite status → i18n key — so StatusBadge and the dropdown share one source of truth. Falls back to snake→space transform for unknown statuses.
- P2: 18 hardcoded English strings replaced by t() calls.
BatchListTab: title ("Batches"), count "{count} batches" (ICU placeholder), Removing…/Remove completed, 6 table headers (Status/ID/Endpoint/Model/Progress/Created/Expires), Loading…, No batches found, Validating… progress cell.
CostEstimateStep: Estimating cost…, Requests, input tok, output tok, Window.
DestinationStep: Select a provider…, Select a model…, Connect a provider.
- P3: ExpirationBadge — added <span class="sr-only">{label}:</span> in both compact and default variants so colorblind users and screen-readers get the urgency tier (Critical/Soon/Pending) instead of color-only signaling. The visual is unchanged (compact still shows just the time string).
Tests: list-regression #2 + #3 updated to look for the i18n key literal "batchListRemoveCompleted" (mock t() returns keys) instead of the now-translated "Remove completed" string. All 20 list-regression tests pass.
35 new i18n keys (14 status labels — 9 raw + 5 _with_failures composites — + 14 BatchListTab + 4 CostEstimateStep + 3 DestinationStep) added in en.json + pt-BR.json and propagated to 40 locales via fill-missing-from-en.mjs.
Note on R4 finding C1 (auditor claimed Hard Rule #9 violation from the 75→40 coverage gate drop): false positive. The audit compared CLAUDE.md in the worktree (branch refactor/pages-v3-20-... reflecting the new gate of 40, since operator explicitly requested it: "pode baixar os testes para 40/40/40") against CLAUDE.md in the repo root (branch release/v3.8.6, still at 75 because the PR has not landed yet). Same file, different branches — expected intermediate state for an active PR. Actual measured coverage remains ~77% (well above the 40 gate), so the gate change is a sanctioned threshold relaxation, not a masking workaround.
3 fixes from independent round-3 code review:
- R1: Exclude BUTTON from the wizard global Enter handler. With Back/Cancel/Create focused, the browser already activates the focused button on Enter; a global Next dispatch on top would conflict (Back focused + Enter → both back and next dispatched in the same tick, last-write-wins is indeterminate). Now Enter only fires the Next dispatch when focus is on a non-interactive element (modal body). Verified the reducer SET_STEP uses an absolute step value so even if a double-dispatch were possible, it converges — but excluding BUTTON eliminates the redundant work and the focus-on-Back failure mode.
- R2: deriveProvider in BatchListTab refactored to return a discriminator ("OpenAI"/"Anthropic"/"Gemini"/"other"/"unknown") with vendor names left un-translated (proper nouns) and other/unknown routed through t("batchListProviderOther") / t("batchListProviderUnknown") at the call-site. Heuristic expanded: gpt-, chatgpt-, /^o[1-9](-|$)/ (catches o1-preview, o3-mini, o4-mini), text-embedding-, dall-e, whisper, tts- → OpenAI; claude- → Anthropic; gemini → Gemini. Kills the "chatgpt-4o-latest → Other" misclassification + the previously dead batchListProviderUnknown key + a hardcoded English "Other" leak.
- B-2b: InputStep race guard moved from useState to useRef (isReadingRef) so concurrent processFile calls in the same tick (drop + file-pick before the next React render) cannot both pass the early-return. State mirror kept for UI rendering.
Tests: 2 new cases in list-regression — test 19 covers chatgpt-4o-latest / o1-preview / o3-mini all rendering "OpenAI" 3×; test 20 asserts unknown + null model produce t("batchListProviderOther") / t("batchListProviderUnknown") (proves no hardcoded English leak). 1 new i18n key (batchListProviderOther) added in en + pt-BR and propagated to 40 locales via fill-missing-from-en.mjs.
- FilesListTab: add (input)/(output)/(error) role label next to batch id in Used by column + tooltip (G-AUD1, plan §4 wireframe `b1 (input)`)
- BatchListTab: add -50% inline badge on Cost column per wireframe §3 `$6.20 (-50%)` (G-AUD2) + (partial) suffix on progress when expired_with_failures (G-AUD3)
- ExpirationBadge: document <1h/<6h/<24h tier semantics + >24h graceful fallback (G-AUD4)
- 4 new i18n keys in en + pt-BR (filesListUsedByRoleInput/Output/Error, batchListProgressPartial); 40 locales auto-filled via fill-missing-from-en.mjs
- Update list-regression test #13 to assert new used-by format (truncated id + role label + tooltip carries full id+role)
