feat(sms): align provider and verification flow

src/Auth/Service.php

@@ -45,7 +45,7 @@ final class Service {
 	public static function resolve_email_to_username(string $login): string {
 		$login = trim($login);
 		if (
-			preg_match('/^1[3-9]\d{9}$/', $login)
+			\AKSRT\Sms\SMS::is_phonenumber($login)
 			&& class_exists('\AKSRT\Settings\Settings')
 			&& \AKSRT\Settings\Settings::signin_phone_enabled()
 		) {