Initial commit: notification-elements-demo app

Interactive Angular 19 demo for @sda/notification-elements-ui with
6 sections: Bell & Feed, Notification Center, Inbox, Comments &
Threads, Mention Input, and Full-Featured layout. Includes mock
data, dark mode toggle, and real-time event log.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

node_modules/yargs/helpers/helpers.mjs

@@ -0,0 +1,10 @@
+import {applyExtends as _applyExtends} from '../build/lib/utils/apply-extends.js';
+import {hideBin} from '../build/lib/utils/process-argv.js';
+import Parser from 'yargs-parser';
+import shim from '../lib/platform-shims/esm.mjs';
+
+const applyExtends = (config, cwd, mergeExtends) => {
+  return _applyExtends(config, cwd, mergeExtends, shim);
+};
+
+export {applyExtends, hideBin, Parser};

node_modules/yargs/helpers/index.js

@@ -0,0 +1,14 @@
+const {
+  applyExtends,
+  cjsPlatformShim,
+  Parser,
+  processArgv,
+} = require('../build/index.cjs');
+
+module.exports = {
+  applyExtends: (config, cwd, mergeExtends) => {
+    return applyExtends(config, cwd, mergeExtends, cjsPlatformShim);
+  },
+  hideBin: processArgv.hideBin,
+  Parser,
+};

node_modules/yargs/helpers/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "commonjs"
+}