Add Belgium and North Sea coverage foundation

frontend/src/hooks/useProjectWorkspace.ts

@@ -3,6 +3,7 @@ import {
   PRIMARY_FOCUS_AREA_GEOJSON,
   PRIMARY_FOCUS_AREA_NAME,
   PRIMARY_FOCUS_REGION,
+  NATIONAL_WORKSPACE_PROJECT_NAME,
   REGIONAL_WORKSPACE_PROJECT_NAME,
   isPrimaryFocusMunicipalityBoundaryDataset,
   isPrimaryFocusMunicipalityProject,
@@ -81,6 +82,17 @@ export function useProjectWorkspace() {
     if (selectedProjectId && items.some((project) => project.id === selectedProjectId)) {
       return selectedProjectId
     }
+    const nationalProject = items.find((project) => project.name === NATIONAL_WORKSPACE_PROJECT_NAME)
+    if (nationalProject) {
+      try {
+        const data = await fetchProjectData(nationalProject.id)
+        if (data.areas.length > 0 && data.datasets.some((dataset) => dataset.status === 'ready')) {
+          return nationalProject.id
+        }
+      } catch {
+        // Continue with regional and municipality fallbacks while national data is unavailable.
+      }
+    }
     const regionalProject = items.find((project) => project.name === REGIONAL_WORKSPACE_PROJECT_NAME)
     if (regionalProject) {
       try {
@@ -145,13 +157,15 @@ export function useProjectWorkspace() {
     setLoadingProjects(true)
     setErrorMessage(null)
     try {
-      const [response, canonicalResponse] = await Promise.all([
+      const [response, nationalResponse, canonicalResponse] = await Promise.all([
         projectsApi.list(),
+        projectsApi.list({ name: NATIONAL_WORKSPACE_PROJECT_NAME, limit: 1 }),
         projectsApi.list({ name: REGIONAL_WORKSPACE_PROJECT_NAME, limit: 1 }),
       ])
+      const regionalItems = [...canonicalResponse.items, ...response.items]
       const items = Array.from(
         new Map(
-          [...canonicalResponse.items, ...response.items].map((project) => [project.id, project]),
+          [...nationalResponse.items, ...regionalItems].map((project) => [project.id, project]),
         ).values(),
       )
       setProjects(items)