Fix: getPools gibt Pool[] zurück, kein Wrapper-Objekt

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/app/datasets/page.tsx

@@ -55,12 +55,12 @@ export default function DatasetsPage() {
         api.getDatasets(),
         api.getSambaShares(),
         api.getNfsShares(),
-        api.getPools().catch(() => ({ pools: [] })),
+        api.getPools().catch(() => []),
       ])
       setDatasets(ds)
       setSambaShares(samba)
       setNfsShares(nfs)
-      setPools((poolData as { pools: Pool[] }).pools || [])
+      setPools(Array.isArray(poolData) ? poolData : [])
     } catch (err) {
       console.error("Failed to load data:", err)
     } finally {