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/webpack/lib/dependencies/RequireEnsureDependenciesBlock.js

@@ -0,0 +1,29 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const AsyncDependenciesBlock = require("../AsyncDependenciesBlock");
+const makeSerializable = require("../util/makeSerializable");
+
+/** @typedef {import("../ChunkGroup").ChunkGroupOptions} ChunkGroupOptions */
+/** @typedef {import("../Dependency").DependencyLocation} DependencyLocation */
+
+class RequireEnsureDependenciesBlock extends AsyncDependenciesBlock {
+	/**
+	 * @param {ChunkGroupOptions & { entryOptions?: TODO }} chunkName chunk name
+	 * @param {DependencyLocation} loc location info
+	 */
+	constructor(chunkName, loc) {
+		super(chunkName, loc, null);
+	}
+}
+
+makeSerializable(
+	RequireEnsureDependenciesBlock,
+	"webpack/lib/dependencies/RequireEnsureDependenciesBlock"
+);
+
+module.exports = RequireEnsureDependenciesBlock;