feat: make spatial entry optional and authoritative

frontend/src/hooks/useProjectWorkspace.ts

@@ -217,6 +217,25 @@ export function useProjectWorkspace() {
     }
   }
 
+  const activateMunicipality = async (niscode: string): Promise<AreaRead | null> => {
+    if (!selectedProjectId) {
+      setErrorMessage('Kies eerst een werkruimte')
+      return null
+    }
+    setLoadingAreas(true)
+    setErrorMessage(null)
+    try {
+      const area = await areasApi.activateMunicipality(selectedProjectId, niscode)
+      await loadProjectData(selectedProjectId)
+      return area
+    } catch (error) {
+      setErrorMessage(error instanceof Error ? error.message : 'De gemeente kon niet als werkgebied worden geladen')
+      return null
+    } finally {
+      setLoadingAreas(false)
+    }
+  }
+
   const archiveProject = async (projectId: string) => {
     setArchivingProjectId(projectId)
     setErrorMessage(null)
@@ -257,6 +276,7 @@ export function useProjectWorkspace() {
     loadProjectData,
     createProject,
     createArea,
+    activateMunicipality,
     archiveProject,
     resetProjectData,
     setSelectedProjectId,