message: Deprecation message for POST /entities
diff: @@ -60,6 +60,16 @@ export async function createRouter(
  res.status(200).json(entities.map(fieldMapper));
  })
  .post('/entities', async (req, res) => {
  + /*
  + * NOTE: THIS METHOD IS DEPRECATED AND NOT RECOMMENDED TO USE
  + *
  + * Posting entities to this method has unclear semantics and will not
  + * properly subject them to limitations, processing, or resolution of
  + * relations.
  + *
  + * It stays around in the service for the time being, but may be
  + * removed or change semantics at any time without prior notice.
  + */
  const body = await requireRequestBody(req);
  const [result] = await entitiesCatalog.batchAddOrUpdateEntities([
  { entity: body as Entity, relations: [] },
  