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/@npmcli/redact/README.md

@@ -0,0 +1,42 @@
+# @npmcli/redact
+
+Redact sensitive npm information from output.
+
+## API
+
+This will redact `npm_` prefixed tokens and UUIDs from values.
+
+It will also replace passwords in stringified URLs.
+
+### `redact(string)`
+
+Redact values from a single value
+
+```js
+const { redact } = require('@npmcli/redact')
+
+redact('https://user:pass@registry.npmjs.org/')
+// https://user:***@registry.npmjs.org/
+
+redact(`https://registry.npmjs.org/path/npm_${'a'.repeat('36')}`)
+// https://registry.npmjs.org/path/npm_***
+```
+
+### `redactLog(string | string[])`
+
+Redact values from a string or array of strings.
+
+This method will also split all strings on `\s` and `=` and iterate over them.
+
+```js
+const { redactLog } = require('@npmcli/redact')
+
+redactLog([
+  'Something --x=https://user:pass@registry.npmjs.org/ foo bar',
+  '--url=http://foo:bar@registry.npmjs.org',
+])
+// [
+//   'Something --x=https://user:***@registry.npmjs.org/ foo bar',
+//   '--url=http://foo:***@registry.npmjs.org/',
+// ]
+```