fix(ui): handle empty cron summaries

ui/src/styles/components.css

@@ -1341,15 +1341,6 @@
   box-sizing: border-box;
 }
 
-.cron-run-entry__body pre,
-.cron-run-entry__body blockquote,
-.cron-job-detail-value pre,
-.cron-job-detail-value blockquote {
-  width: 100%;
-  max-width: 100%;
-  box-sizing: border-box;
-}
-
 @media (max-width: 1100px) {
   .cron-job.list-item {
     display: flex;

ui/src/ui/views/cron.test.ts

@@ -372,6 +372,31 @@ describe("cron view", () => {
     expect(container.querySelector(".cron-run-entry__body strong")?.textContent).toBe("markdown");
   });
 
+  it("treats empty run summaries as absent when an error exists", () => {
+    const container = document.createElement("div");
+    render(
+      renderCron(
+        createProps({
+          runs: [
+            {
+              ts: 2,
+              jobId: "job-empty-summary",
+              status: "error",
+              summary: "",
+              error: "Failed with **markdown**",
+            },
+          ],
+        }),
+      ),
+      container,
+    );
+
+    expect(container.querySelector(".cron-run-entry__meta")?.textContent).not.toContain(
+      "Failed with",
+    );
+    expect(container.querySelector(".cron-run-entry__body strong")?.textContent).toBe("markdown");
+  });
+
   it("wires the Edit action and shows save/cancel controls when editing", () => {
     const container = document.createElement("div");
     const onEdit = vi.fn();

ui/src/ui/views/cron.ts

@@ -1723,8 +1723,8 @@ function renderRun(
       : usage && typeof usage.input_tokens === "number" && typeof usage.output_tokens === "number"
         ? `${usage.input_tokens} in / ${usage.output_tokens} out`
         : null;
-  const bodySource = entry.summary ?? entry.error ?? t("cron.runEntry.noSummary");
-  const showErrorInMeta = !!entry.error && entry.summary != null;
+  const bodySource = entry.summary || entry.error || t("cron.runEntry.noSummary");
+  const showErrorInMeta = !!entry.error && !!entry.summary;
   return html`
     <div class="list-item cron-run-entry">
       <div class="cron-run-entry__header">