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/supports-preserve-symlinks-flag/CHANGELOG.md

@@ -0,0 +1,22 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## v1.0.0 - 2022-01-02
+
+### Commits
+
+- Tests [`e2f59ad`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/e2f59ad74e2ae0f5f4899fcde6a6f693ab7cc074)
+- Initial commit [`dc222aa`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/dc222aad3c0b940d8d3af1ca9937d108bd2dc4b9)
+- [meta] do not publish workflow files [`5ef77f7`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/5ef77f7cb6946d16ee38672be9ec0f1bbdf63262)
+- npm init [`992b068`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/992b068503a461f7e8676f40ca2aab255fd8d6ff)
+- read me [`6c9afa9`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/6c9afa9fabc8eaf0814aaed6dd01e6df0931b76d)
+- Initial implementation [`2f98925`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/2f9892546396d4ab0ad9f1ff83e76c3f01234ae8)
+- [meta] add `auto-changelog` [`6c476ae`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/6c476ae1ed7ce68b0480344f090ac2844f35509d)
+- [Dev Deps] add `eslint`, `@ljharb/eslint-config` [`d0fffc8`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/d0fffc886d25fba119355520750a909d64da0087)
+- Only apps should have lockfiles [`ab318ed`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/ab318ed7ae62f6c2c0e80a50398d40912afd8f69)
+- [meta] add `safe-publish-latest` [`2bb23b3`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/2bb23b3ebab02dc4135c4cdf0217db82835b9fca)
+- [meta] add `sideEffects` flag [`600223b`](https://github.com/inspect-js/node-supports-preserve-symlinks-flag/commit/600223ba24f30779f209d9097721eff35ed62741)