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/async-modules/AwaitDependenciesInitFragment.js

@@ -0,0 +1,72 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const InitFragment = require("../InitFragment");
+const RuntimeGlobals = require("../RuntimeGlobals");
+const Template = require("../Template");
+
+/** @typedef {import("webpack-sources").Source} Source */
+/** @typedef {import("../Generator").GenerateContext} GenerateContext */
+
+/**
+ * @extends {InitFragment<GenerateContext>}
+ */
+class AwaitDependenciesInitFragment extends InitFragment {
+	/**
+	 * @param {Set<string>} promises the promises that should be awaited
+	 */
+	constructor(promises) {
+		super(
+			undefined,
+			InitFragment.STAGE_ASYNC_DEPENDENCIES,
+			0,
+			"await-dependencies"
+		);
+		this.promises = promises;
+	}
+
+	/**
+	 * @param {AwaitDependenciesInitFragment} other other AwaitDependenciesInitFragment
+	 * @returns {AwaitDependenciesInitFragment} AwaitDependenciesInitFragment
+	 */
+	merge(other) {
+		const promises = new Set(other.promises);
+		for (const p of this.promises) {
+			promises.add(p);
+		}
+		return new AwaitDependenciesInitFragment(promises);
+	}
+
+	/**
+	 * @param {GenerateContext} context context
+	 * @returns {string | Source | undefined} the source code that will be included as initialization code
+	 */
+	getContent({ runtimeRequirements }) {
+		runtimeRequirements.add(RuntimeGlobals.module);
+		const promises = this.promises;
+		if (promises.size === 0) {
+			return "";
+		}
+		if (promises.size === 1) {
+			const [p] = promises;
+			return Template.asString([
+				`var __webpack_async_dependencies__ = __webpack_handle_async_dependencies__([${p}]);`,
+				`${p} = (__webpack_async_dependencies__.then ? (await __webpack_async_dependencies__)() : __webpack_async_dependencies__)[0];`,
+				""
+			]);
+		}
+		const sepPromises = Array.from(promises).join(", ");
+		// TODO check if destructuring is supported
+		return Template.asString([
+			`var __webpack_async_dependencies__ = __webpack_handle_async_dependencies__([${sepPromises}]);`,
+			`([${sepPromises}] = __webpack_async_dependencies__.then ? (await __webpack_async_dependencies__)() : __webpack_async_dependencies__);`,
+			""
+		]);
+	}
+}
+
+module.exports = AwaitDependenciesInitFragment;