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/memfs/demo/fsa-to-node-sync-tests/README.md

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+# Synchronous `fs` in browser
+
+This demo executes tests of **synchronous** Node.js API built on top of File
+System Access API in browser.
+
+There are two tests:
+
+- OPFS — virtual file system built into browsers.
+- Native File System Access API folder — a real folder that user explicitly grants permission to.
+
+See the assertions run in the browser console.
+
+https://github.com/streamich/memfs/assets/9773803/f841b6cc-728d-4341-b426-3daa6b43f8ac
+
+Run:
+
+```
+demo:fsa-to-node-sync-tests
+```

node_modules/memfs/demo/fsa-to-node-zipfile/README.md

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+This demo shows how `tar-stream` package can be used to create a zip file from
+a folder selected with File System Access API.
+
+Below demo uses the File System Access API in the browser to get access to a real folder
+on the file system. It then converts a [`FileSystemDirectoryHandle`](https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryHandle) instance
+to a Node-like `fs` file system.
+
+It then creates two text files using `fs.promises.writeFile`, and then uses `tar-stream` package to create a zip file
+and write it back got the file system using Node's `fs.createWriteStream`.
+
+https://github.com/streamich/memfs/assets/9773803/8dc61d1e-61bf-4dfc-973b-028332fd4473
+
+Run:
+
+```
+demo:fsa-to-node-zipfile
+```

node_modules/memfs/demo/git-fsa/README.md

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+This demo showcase how to run Git in browser but write to a real user file system
+folder. It is possible through File System Access API. The API allows to request
+a folder from user and then use it as a real file system in browser.
+
+In this demo we use `memfs` to create a Node `fs`-like file system in browser
+out of the folder provided by File System Access API. We then use `isomorphic-git`
+to run Git commands on that file system.
+
+In the demo itself we initiate a Git repo, then we create a `README.md` file, we
+stage it, and finally we commit it.
+
+https://github.com/streamich/memfs/assets/9773803/c15212e8-3ee2-4d2a-b325-9fbdcc377c12
+
+Run:
+
+```
+yarn demo:git-fsa
+```

node_modules/memfs/demo/git-opfs/README.md

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+This demo showcase how to run Git in browser built-int OPFS file system. OPFS
+stands for (Origin Private File System) it is a virtual file system available
+in browser and it requires no permission to access.
+
+In this demo we use `memfs` to create a Node `fs`-like file system in browser
+out of OPFS. We then use `isomorphic-git` to run Git commands on that file system.
+
+In the demo itself we initiate a Git repo, then we create a `README.md` file, we
+stage it, and finally we commit it.
+
+https://github.com/streamich/memfs/assets/9773803/bbc83f3f-98ad-48cc-9259-b6f543aa1a03
+
+Run:
+
+```
+yarn demo:git-opfs
+```
+
+You can install [OPFS Explorer](https://chrome.google.com/webstore/detail/opfs-explorer/acndjpgkpaclldomagafnognkcgjignd) Chrome
+extension to verify the contents of the OPFS file system.

node_modules/memfs/demo/git/README.md

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+# `isomorphic-git` running on `memfs` in-memory file system
+
+This demo shows how to run `isomorphic-git` on `memfs` in-memory file system. It
+creates a new folder `/repo`, then inits a Git repository there, then creates a
+a file `/repo/README.md` and commits it.
+
+![](https://github.com/streamich/memfs/assets/9773803/021af8ea-690d-4e4e-9d05-d3e0dea60672)
+
+Run:
+
+```
+yarn
+npx ts-node demo/git/index.ts
+```
+
+The demo will print the snapshot of the file system after each step.

node_modules/memfs/demo/runkit.js

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+const { fs } = require('memfs');
+
+fs.writeFileSync('/hello.txt', 'Hello World');
+
+console.log(fs.readFileSync('/hello.txt', 'utf8'));