Update Jest configuration to include TypeScript support and add new code quality checks workflow; translate comments to Russian and adjust paths in test files.

server/routers/questioneer/public/static/js/common.js

@@ -187,6 +187,7 @@ function showConfirm(message, callback, title) {
 function generateQRCode(data, size) {
   const typeNumber = 0; // Автоматическое определение
   const errorCorrectionLevel = 'L'; // Низкий уровень коррекции ошибок
+  // eslint-disable-next-line no-undef
   const qr = qrcode(typeNumber, errorCorrectionLevel);
   qr.addData(data);
   qr.make();