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/isLatLong.js

@@ -0,0 +1,30 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isLatLong;
+var _assertString = _interopRequireDefault(require("./util/assertString"));
+var _merge = _interopRequireDefault(require("./util/merge"));
+var _includesString = _interopRequireDefault(require("./util/includesString"));
+function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
+var lat = /^\(?[+-]?(90(\.0+)?|[1-8]?\d(\.\d+)?)$/;
+var long = /^\s?[+-]?(180(\.0+)?|1[0-7]\d(\.\d+)?|\d{1,2}(\.\d+)?)\)?$/;
+var latDMS = /^(([1-8]?\d)\D+([1-5]?\d|60)\D+([1-5]?\d|60)(\.\d+)?|90\D+0\D+0)\D+[NSns]?$/i;
+var longDMS = /^\s*([1-7]?\d{1,2}\D+([1-5]?\d|60)\D+([1-5]?\d|60)(\.\d+)?|180\D+0\D+0)\D+[EWew]?$/i;
+var defaultLatLongOptions = {
+  checkDMS: false
+};
+function isLatLong(str, options) {
+  (0, _assertString.default)(str);
+  options = (0, _merge.default)(options, defaultLatLongOptions);
+  if (!(0, _includesString.default)(str, ',')) return false;
+  var pair = str.split(',');
+  if (pair[0].startsWith('(') && !pair[1].endsWith(')') || pair[1].endsWith(')') && !pair[0].startsWith('(')) return false;
+  if (options.checkDMS) {
+    return latDMS.test(pair[0]) && longDMS.test(pair[1]);
+  }
+  return lat.test(pair[0]) && long.test(pair[1]);
+}
+module.exports = exports.default;
+module.exports.default = exports.default;