Add user aliases concept and weave LDAP into it

backend/src/services/user-alias/user-alias-dal.ts

@@ -0,0 +1,13 @@
+import { TDbClient } from "@app/db";
+import { TableName } from "@app/db/schemas";
+import { ormify } from "@app/lib/knex";
+
+export type TUserAliasDALFactory = ReturnType<typeof userAliasDALFactory>;
+
+export const userAliasDALFactory = (db: TDbClient) => {
+  const userAliasOrm = ormify(db, TableName.UserAliases);
+
+  return {
+    ...userAliasOrm
+  };
+};