message: techdocs: backend responds with an error if publisher type is not supported
diff: @@ -186,6 +186,10 @@ export async function createRouter({
  }
  break;
  default:
  + res.status(400).json({
  + error: `Publisher type ${publisherType} is not supported by techdocs-backend docs builder.`,
  + });
  + break;
  }
  }
  