fix(errors): name three refusals that fell back to a generic sentence

Since a codeless refusal reads by its status, three answers lost their
meaning. A failed ChatGPT sign-in poll said "Error saving" instead of
asking to start the sign-in again; it now falls back to the sign-in's
own failure sentence. A dose-history import still running when the
card stopped watching said "Nothing was written" although the job may
still write; that case now has its own sentence. Setting up an
authenticator while one is active answered "setup failed"; the route
now sends `auth.mfa.already_active`, which says to disable the active
one first, in every locale.

src/components/settings/ai/codex-provider-form.tsx

@@ -89,7 +89,7 @@ export function CodexProviderForm({
         intervalSeconds: data.intervalSeconds,
       });
     } catch (err) {
-      setMsg(localizedApiError(err, t, "settings.savingError"));
+      setMsg(localizedApiError(err, t, "settings.codexConnectionFailed"));
       setMsgType("error");
       setDevicePolling(false);
     }
@@ -117,7 +117,7 @@ export function CodexProviderForm({
         if (!cancelled) setTimeout(tick, intervalMs);
       } catch (err) {
         if (cancelled) return;
-        setMsg(localizedApiError(err, t, "settings.savingError"));
+        setMsg(localizedApiError(err, t, "settings.codexConnectionFailed"));
         setMsgType("error");
         setDeviceCode(null);
         setDevicePolling(false);

src/components/settings/import-panel/dose-history-import-card.tsx

@@ -31,7 +31,10 @@ import { Label } from "@/components/ui/label";
 import { Textarea } from "@/components/ui/textarea";
 import { apiFetchRaw } from "@/lib/api/api-fetch";
 import { useTranslations } from "@/lib/i18n/context";
-import { waitForMedicationIntakeImport } from "@/lib/medications/intake-import-poll";
+import {
+  MedicationIntakeImportTimeout,
+  waitForMedicationIntakeImport,
+} from "@/lib/medications/intake-import-poll";
 import { invalidateMedicationReads } from "@/lib/query-keys";
 
 import { DoseHistoryColumnRulings } from "./dose-history-columns";
@@ -93,6 +96,17 @@ function looksLikeJson(text: string): boolean {
   return head === "[" || head === "{";
 }
 
+/**
+ * The sentence for an import that did not report a result. A failed run or
+ * a transport failure wrote nothing; a job still running when the watch gave
+ * up may still write, so it must not read as nothing written.
+ */
+function importFailureKey(err: unknown): string {
+  return err instanceof MedicationIntakeImportTimeout
+    ? "settings.sections.export.import.doseHistory.stillRunning"
+    : "settings.sections.export.import.doseHistory.failed";
+}
+
 export function DoseHistoryImportCard() {
   const { t } = useTranslations();
   const fatalMessageFor = useFatalMessage();
@@ -191,12 +205,11 @@ export function DoseHistoryImportCard() {
         skippedDetailsOmitted: result.skippedDetailsOmitted,
       });
       void invalidateMedicationReads(queryClient);
-    } catch {
+    } catch (err) {
       // A failed job's reason is the worker's English and adds nothing;
-      // anything else is a transport failure. Either way the run did not
-      // write, and the card says so rather than leaving the last verdict on
-      // screen.
-      setError(t("settings.sections.export.import.doseHistory.failed"));
+      // anything else is a transport failure. The card says what that means
+      // rather than leaving the last verdict on screen.
+      setError(t(importFailureKey(err)));
       setVerdict(null);
     } finally {
       setBusy(false);