M14: add n8n execution health telemetry

frontend/src/pages/Automation.tsx

@@ -279,9 +279,13 @@ export function Automation() {
                 const displayName = slug ? t(`workflows.names.${slug}`) : w.name;
                 const badge = !w.built
                   ? { status: "not_configured", label: t("workflows.notBuilt") }
-                  : w.last_seen_at
-                    ? { status: "available", label: t("statusLabels.operational") }
-                    : { status: "no_events", label: t("workflows.noEvidence") };
+                  : w.state === "healthy"
+                    ? { status: "available", label: t("workflows.healthy") }
+                    : w.state === "stale"
+                      ? { status: "degraded", label: t("workflows.stale") }
+                      : w.state === "failed"
+                        ? { status: "failed", label: t("workflows.failed") }
+                        : { status: "no_events", label: t("workflows.noEvidence") };
                 return (
                   <tr key={w.name}>
                     <td data-label={t("workflows.columns.name")}>{displayName}</td>
@@ -298,7 +302,7 @@ export function Automation() {
                     <td data-label={t("workflows.columns.technicalId")}>
                       <details className="evidence-disclosure">
                         <summary>{t("common:actions.technicalDetails")}</summary>
-                        <span className="table-subtext">{w.name}</span>
+                        <span className="table-subtext">{w.name}{w.last_execution_id ? ` · ${t("workflows.executionId")}: ${w.last_execution_id}` : ""}</span>
                       </details>
                     </td>
                   </tr>