Add governed source freshness audit

frontend/src/services/api/datasets.ts

@@ -27,6 +27,7 @@ import type {
   ThematicRasterAcquireRequest,
   ThematicRasterProductRead,
   ThematicRasterSelectionResponse,
+  SourceFreshnessReport,
 } from '../../types'
 
 const DATASET_PAGE_SIZE = 200
@@ -58,6 +59,8 @@ async function listProjectDatasets(projectId: string): Promise<DatasetListRespon
 
 export const datasetsApi = {
   list: listProjectDatasets,
+  sourceFreshness: (projectId: string): Promise<SourceFreshnessReport> =>
+    apiGet<SourceFreshnessReport>(`/api/v1/projects/${projectId}/datasets/source-freshness`),
   upload: (
     projectId: string,
     payload: {