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/@jsonjoy.com/fs-node/lib/FsPromises.d.ts

@@ -0,0 +1,91 @@
+import type * as opts from '@jsonjoy.com/fs-node-utils/lib/types/options';
+import type * as misc from '@jsonjoy.com/fs-node-utils/lib/types/misc';
+import type { FsCallbackApi, FsPromisesApi } from '@jsonjoy.com/fs-node-utils';
+export declare class FsPromises implements FsPromisesApi {
+    protected readonly fs: FsCallbackApi;
+    readonly FileHandle: new (...args: unknown[]) => misc.IFileHandle;
+    readonly constants: {
+        O_RDONLY: number;
+        O_WRONLY: number;
+        O_RDWR: number;
+        S_IFMT: number;
+        S_IFREG: number;
+        S_IFDIR: number;
+        S_IFCHR: number;
+        S_IFBLK: number;
+        S_IFIFO: number;
+        S_IFLNK: number;
+        S_IFSOCK: number;
+        O_CREAT: number;
+        O_EXCL: number;
+        O_NOCTTY: number;
+        O_TRUNC: number;
+        O_APPEND: number;
+        O_DIRECTORY: number;
+        O_NOATIME: number;
+        O_NOFOLLOW: number;
+        O_SYNC: number;
+        O_SYMLINK: number;
+        O_DIRECT: number;
+        O_NONBLOCK: number;
+        S_IRWXU: number;
+        S_IRUSR: number;
+        S_IWUSR: number;
+        S_IXUSR: number;
+        S_IRWXG: number;
+        S_IRGRP: number;
+        S_IWGRP: number;
+        S_IXGRP: number;
+        S_IRWXO: number;
+        S_IROTH: number;
+        S_IWOTH: number;
+        S_IXOTH: number;
+        F_OK: number;
+        R_OK: number;
+        W_OK: number;
+        X_OK: number;
+        UV_FS_SYMLINK_DIR: number;
+        UV_FS_SYMLINK_JUNCTION: number;
+        UV_FS_COPYFILE_EXCL: number;
+        UV_FS_COPYFILE_FICLONE: number;
+        UV_FS_COPYFILE_FICLONE_FORCE: number;
+        COPYFILE_EXCL: number;
+        COPYFILE_FICLONE: number;
+        COPYFILE_FICLONE_FORCE: number;
+    };
+    constructor(fs: FsCallbackApi, FileHandle: new (...args: unknown[]) => misc.IFileHandle);
+    readonly cp: (...args: any[]) => Promise<any>;
+    readonly opendir: (...args: any[]) => Promise<any>;
+    readonly statfs: (...args: any[]) => Promise<any>;
+    readonly lutimes: (...args: any[]) => Promise<any>;
+    readonly glob: (...args: any[]) => Promise<any>;
+    readonly access: (...args: any[]) => Promise<any>;
+    readonly chmod: (...args: any[]) => Promise<any>;
+    readonly chown: (...args: any[]) => Promise<any>;
+    readonly copyFile: (...args: any[]) => Promise<any>;
+    readonly lchmod: (...args: any[]) => Promise<any>;
+    readonly lchown: (...args: any[]) => Promise<any>;
+    readonly link: (...args: any[]) => Promise<any>;
+    readonly lstat: (...args: any[]) => Promise<any>;
+    readonly mkdir: (...args: any[]) => Promise<any>;
+    readonly mkdtemp: (...args: any[]) => Promise<any>;
+    readonly readdir: (...args: any[]) => Promise<any>;
+    readonly readlink: (...args: any[]) => Promise<any>;
+    readonly realpath: (...args: any[]) => Promise<any>;
+    readonly rename: (...args: any[]) => Promise<any>;
+    readonly rmdir: (...args: any[]) => Promise<any>;
+    readonly rm: (...args: any[]) => Promise<any>;
+    readonly stat: (...args: any[]) => Promise<any>;
+    readonly symlink: (...args: any[]) => Promise<any>;
+    readonly truncate: (...args: any[]) => Promise<any>;
+    readonly unlink: (...args: any[]) => Promise<any>;
+    readonly utimes: (...args: any[]) => Promise<any>;
+    readonly readFile: (id: misc.TFileHandle, options?: opts.IReadFileOptions | string) => Promise<misc.TDataOut>;
+    readonly appendFile: (path: misc.TFileHandle, data: misc.TData, options?: opts.IAppendFileOptions | string) => Promise<void>;
+    readonly open: (path: misc.PathLike, flags?: misc.TFlags, mode?: misc.TMode) => Promise<any>;
+    readonly writeFile: (id: misc.TFileHandle, data: misc.TPromisesData, options?: opts.IWriteFileOptions) => Promise<void>;
+    readonly watch: (filename: misc.PathLike, options?: opts.IWatchOptions | string) => AsyncIterableIterator<{
+        eventType: string;
+        filename: string | Buffer;
+    }>;
+}