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/@nodelib/fs.scandir/out/adapters/fs.d.ts

@@ -0,0 +1,20 @@
+import type * as fsStat from '@nodelib/fs.stat';
+import type { Dirent, ErrnoException } from '../types';
+export interface ReaddirAsynchronousMethod {
+    (filepath: string, options: {
+        withFileTypes: true;
+    }, callback: (error: ErrnoException | null, files: Dirent[]) => void): void;
+    (filepath: string, callback: (error: ErrnoException | null, files: string[]) => void): void;
+}
+export interface ReaddirSynchronousMethod {
+    (filepath: string, options: {
+        withFileTypes: true;
+    }): Dirent[];
+    (filepath: string): string[];
+}
+export declare type FileSystemAdapter = fsStat.FileSystemAdapter & {
+    readdir: ReaddirAsynchronousMethod;
+    readdirSync: ReaddirSynchronousMethod;
+};
+export declare const FILE_SYSTEM_ADAPTER: FileSystemAdapter;
+export declare function createFileSystemAdapter(fsMethods?: Partial<FileSystemAdapter>): FileSystemAdapter;

node_modules/@nodelib/fs.scandir/out/adapters/fs.js

@@ -0,0 +1,19 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createFileSystemAdapter = exports.FILE_SYSTEM_ADAPTER = void 0;
+const fs = require("fs");
+exports.FILE_SYSTEM_ADAPTER = {
+    lstat: fs.lstat,
+    stat: fs.stat,
+    lstatSync: fs.lstatSync,
+    statSync: fs.statSync,
+    readdir: fs.readdir,
+    readdirSync: fs.readdirSync
+};
+function createFileSystemAdapter(fsMethods) {
+    if (fsMethods === undefined) {
+        return exports.FILE_SYSTEM_ADAPTER;
+    }
+    return Object.assign(Object.assign({}, exports.FILE_SYSTEM_ADAPTER), fsMethods);
+}
+exports.createFileSystemAdapter = createFileSystemAdapter;