feat(api): decouple api from curriculum (#40703)

api-server/server/utils/create-handled-error.js

@@ -1,27 +0,0 @@
-const _handledError = Symbol('handledError');
-
-export function isHandledError(err) {
-  return !!err[_handledError];
-}
-
-export function unwrapHandledError(err) {
-  return err[_handledError] || {};
-}
-
-export function wrapHandledError(
-  err,
-  { type, message, redirectTo, status = 200 }
-) {
-  err[_handledError] = { type, message, redirectTo, status };
-  return err;
-}
-
-// for use with express-validator error formatter
-export const createValidatorErrorFormatter = (type, redirectTo) => ({ msg }) =>
-  wrapHandledError(new Error(msg), {
-    type,
-    message: msg,
-    redirectTo,
-    // we default to 400 as these are malformed requests
-    status: 400
-  });