Initial commit: Aeroflot Flights Web - Angular 12 baseline

- Angular 12 application with PrimeNG components
- 5 existing Cypress e2e test suites
- SCSS styling with BEM naming convention
- i18n support (10 languages)
- Leaflet map integration
- Complete component hierarchy and routing structure

This baseline will be used for Angular → React migration.

ClientApp/node_modules/lodash/wrapperChain.js

@@ -0,0 +1,34 @@
+var chain = require('./chain');
+
+/**
+ * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
+ *
+ * @name chain
+ * @memberOf _
+ * @since 0.1.0
+ * @category Seq
+ * @returns {Object} Returns the new `lodash` wrapper instance.
+ * @example
+ *
+ * var users = [
+ *   { 'user': 'barney', 'age': 36 },
+ *   { 'user': 'fred',   'age': 40 }
+ * ];
+ *
+ * // A sequence without explicit chaining.
+ * _(users).head();
+ * // => { 'user': 'barney', 'age': 36 }
+ *
+ * // A sequence with explicit chaining.
+ * _(users)
+ *   .chain()
+ *   .head()
+ *   .pick('user')
+ *   .value();
+ * // => { 'user': 'barney' }
+ */
+function wrapperChain() {
+  return chain(this);
+}
+
+module.exports = wrapperChain;