Commit 6: Adminbereich (TanStack Router, 8 Menüpunkte, Scan-Logs)

apps/frontend/src/hooks/useBackendHealth.ts

@@ -0,0 +1,34 @@
+import { useEffect, useState } from "react";
+import type { HealthStatus } from "@launchpad/shared";
+
+export function useBackendHealth() {
+  const [health, setHealth] = useState<HealthStatus | null>(null);
+  const [error, setError] = useState(false);
+
+  useEffect(() => {
+    let cancelled = false;
+
+    async function check() {
+      try {
+        const res = await fetch("/api/health");
+        if (!res.ok) throw new Error(`HTTP ${res.status}`);
+        const data: HealthStatus = await res.json();
+        if (!cancelled) {
+          setHealth(data);
+          setError(false);
+        }
+      } catch {
+        if (!cancelled) setError(true);
+      }
+    }
+
+    check();
+    const interval = setInterval(check, 10_000);
+    return () => {
+      cancelled = true;
+      clearInterval(interval);
+    };
+  }, []);
+
+  return { health, error };
+}