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/minipass-collect/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "minipass-collect",
+  "version": "2.0.1",
+  "description": "A Minipass stream that collects all the data into a single chunk",
+  "author": "Isaac Z. Schlueter <i@izs.me> (https://izs.me)",
+  "license": "ISC",
+  "scripts": {
+    "test": "tap",
+    "snap": "tap",
+    "preversion": "npm test",
+    "postversion": "npm publish",
+    "prepublishOnly": "git push origin --follow-tags"
+  },
+  "tap": {
+    "check-coverage": true
+  },
+  "devDependencies": {
+    "tap": "^16.3.8"
+  },
+  "dependencies": {
+    "minipass": "^7.0.3"
+  },
+  "files": [
+    "index.js"
+  ],
+  "engines": {
+    "node": ">=16 || 14 >=14.17"
+  },
+  "repository": "https://github.com/isaacs/minipass-collect"
+}