misc: addressed comments

backend/src/server/plugins/error-handler.ts

@@ -7,6 +7,7 @@ import {
   BadRequestError,
   DatabaseError,
   ForbiddenRequestError,
+  GatewayTimeoutError,
   InternalServerError,
   NotFoundError,
   ScimRequestError,
@@ -25,7 +26,8 @@ enum HttpStatusCodes {
   Unauthorized = 401,
   Forbidden = 403,
   // eslint-disable-next-line @typescript-eslint/no-shadow
-  InternalServerError = 500
+  InternalServerError = 500,
+  GatewayTimeout = 504
 }
 
 export const fastifyErrHandler = fastifyPlugin(async (server: FastifyZodProvider) => {
@@ -47,6 +49,10 @@ export const fastifyErrHandler = fastifyPlugin(async (server: FastifyZodProvider
       void res
         .status(HttpStatusCodes.InternalServerError)
         .send({ statusCode: HttpStatusCodes.InternalServerError, message: "Something went wrong", error: error.name });
+    } else if (error instanceof GatewayTimeoutError) {
+      void res
+        .status(HttpStatusCodes.GatewayTimeout)
+        .send({ statusCode: HttpStatusCodes.GatewayTimeout, message: error.message, error: error.name });
     } else if (error instanceof ZodError) {
       void res
         .status(HttpStatusCodes.Unauthorized)