KI-AGENT: Tabellen-Empty-States ohne JSON rendern

Ersetzt ungültige UTable-Empty-Props durch einen gemeinsamen Empty-State-Slot, damit leere Tabellen keine Objekt-/JSON-Ausgabe mehr anzeigen.

frontend/components/EntityShowSubCreatedDocuments.vue

@@ -267,7 +267,6 @@ const selectItem = (item) => {
         :ui="{ divide: 'divide-gray-200 dark:divide-gray-800' }"
         :on-select="(row) => selectItem(row.original)"
         style="height: 70vh"
-        :empty="{ icon: 'i-heroicons-circle-stack-20-solid', label: 'Keine Belege anzuzeigen' }"
     >
       <template #type-cell="{ row }">
         {{ dataStore.documentTypesForCreation[row.original.type].labelSingle }}
@@ -312,6 +311,9 @@ const selectItem = (item) => {
       <template #amount-cell="{ row }">
         <span v-if="!deliveryNoteLikeDocumentTypes.includes(row.original.type)">{{ useCurrency(useSum().getCreatedDocumentSum(row.original, createddocuments)) }}</span>
       </template>
+      <template #empty>
+        <TableEmptyState label="Keine Belege anzuzeigen" />
+      </template>
     </UTable>