Website restoration: Node.js backend, restored design, GitHub sync disabled

- Replaced broken .NET backend with Node.js/Express
- Restored original website design with purple gradient hero
- Updated homepage and shop pages with Bootstrap 5 responsive design
- Disabled GitHub remote sync - all code now stored locally only
- Created backup scripts and documentation
- All changes saved on Ubuntu server at /var/www/SkyArtShop

backend/node_modules/validator/lib/isBase32.js

@@ -0,0 +1,28 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isBase32;
+var _assertString = _interopRequireDefault(require("./util/assertString"));
+var _merge = _interopRequireDefault(require("./util/merge"));
+function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
+var base32 = /^[A-Z2-7]+=*$/;
+var crockfordBase32 = /^[A-HJKMNP-TV-Z0-9]+$/;
+var defaultBase32Options = {
+  crockford: false
+};
+function isBase32(str, options) {
+  (0, _assertString.default)(str);
+  options = (0, _merge.default)(options, defaultBase32Options);
+  if (options.crockford) {
+    return crockfordBase32.test(str);
+  }
+  var len = str.length;
+  if (len % 8 === 0 && base32.test(str)) {
+    return true;
+  }
+  return false;
+}
+module.exports = exports.default;
+module.exports.default = exports.default;