Variable emailLocalPartMatchingUserEntityName`Const`

emailLocalPartMatchingUserEntityName: SignInResolverFactory<
    unknown,
    | {
        allowedDomains?: string[];
        dangerouslyAllowSignInWithoutUserInCatalog?: boolean;
    }
    | undefined,
> = ...

A common sign-in resolver that looks up the user using the local part of their email address as the entity name.