curl --request GET \
  --url https://api.letpiper.com/v1/orgs/{org_id}/knowledge/processing-status \
  --header 'Authorization: Bearer <token>'

{
  "processingDocuments": [
    {
      "documentId": "<string>",
      "status": "<string>",
      "progress": 123,
      "error": "<string>",
      "metadata": {}
    }
  ],
  "collectionStatuses": {}
}