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/lodash/compact.js

@@ -0,0 +1,31 @@
+/**
+ * Creates an array with all falsey values removed. The values `false`, `null`,
+ * `0`, `""`, `undefined`, and `NaN` are falsey.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to compact.
+ * @returns {Array} Returns the new array of filtered values.
+ * @example
+ *
+ * _.compact([0, 1, false, 2, '', 3]);
+ * // => [1, 2, 3]
+ */
+function compact(array) {
+  var index = -1,
+      length = array == null ? 0 : array.length,
+      resIndex = 0,
+      result = [];
+
+  while (++index < length) {
+    var value = array[index];
+    if (value) {
+      result[resIndex++] = value;
+    }
+  }
+  return result;
+}
+
+module.exports = compact;