fix(status): expose background failures

src/components/admin/__tests__/system-status-failing-jobs.test.tsx

@@ -0,0 +1,48 @@
+import { describe, expect, it } from "vitest";
+import { renderToStaticMarkup } from "react-dom/server";
+
+import { I18nProvider } from "@/lib/i18n/context";
+import { FailingJobsCard } from "../system-status-section";
+
+function render(node: React.ReactNode) {
+  return renderToStaticMarkup(
+    <I18nProvider initialLocale="en">{node}</I18nProvider>,
+  );
+}
+
+describe("FailingJobsCard", () => {
+  it("renders named exhausted-retry failures from failingJobs", () => {
+    const html = render(
+      <FailingJobsCard
+        failingJobs={{
+          windowHours: 72,
+          queues: [
+            {
+              queue: "environment-fetch",
+              failures: 2,
+              lastFailedAt: "2026-07-28T12:00:00.000Z",
+              lastError: "upstream unavailable",
+            },
+          ],
+        }}
+      />,
+    );
+
+    expect(html).toContain("environment-fetch");
+    expect(html).toContain("2 failures");
+    expect(html).toContain("upstream unavailable");
+    expect(html).toContain('data-testid="failing-jobs-list"');
+  });
+
+  it("distinguishes an unavailable queue ledger from an empty one", () => {
+    const unavailable = render(<FailingJobsCard failingJobs={null} />);
+    const empty = render(
+      <FailingJobsCard failingJobs={{ windowHours: 72, queues: [] }} />,
+    );
+
+    expect(unavailable).toContain("No job queue to read");
+    expect(unavailable).not.toContain('data-testid="failing-jobs-none"');
+    expect(empty).toContain('data-testid="failing-jobs-none"');
+    expect(empty).toContain("No job has failed in the last 72 hours.");
+  });
+});