feat: knowledge used by app can still be removed (#5811)

web/service/datasets.ts

@@ -72,6 +72,12 @@ export const createEmptyDataset: Fetcher<DataSet, { name: string }> = ({ name })
   return post<DataSet>('/datasets', { body: { name } })
 }
 
+export const checkIsUsedInApp: Fetcher<{ is_using: boolean }, string> = (id) => {
+  return get<{ is_using: boolean }>(`/datasets/${id}/use-check`, {}, {
+    silent: true,
+  })
+}
+
 export const deleteDataset: Fetcher<DataSet, string> = (datasetID) => {
   return del<DataSet>(`/datasets/${datasetID}`)
 }