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/@schematics/angular/utility/latest-versions/package.json

@@ -0,0 +1,27 @@
+{
+  "description": "Package versions used by schematics in @schematics/angular.",
+  "comment": "This file is needed so that dependencies are synced by Renovate.",
+  "private": true,
+  "dependencies": {
+    "@types/express": "^4.17.17",
+    "@types/jasmine": "~5.1.0",
+    "@types/node": "^18.18.0",
+    "browser-sync": "^3.0.0",
+    "express": "^4.18.2",
+    "jasmine-core": "~5.6.0",
+    "jasmine-spec-reporter": "~7.0.0",
+    "karma-chrome-launcher": "~3.2.0",
+    "karma-coverage": "~2.2.0",
+    "karma-jasmine-html-reporter": "~2.1.0",
+    "karma-jasmine": "~5.1.0",
+    "karma": "~6.4.0",
+    "less": "^4.2.0",
+    "postcss": "^8.4.38",
+    "protractor": "~7.0.0",
+    "rxjs": "~7.8.0",
+    "tslib": "^2.3.0",
+    "ts-node": "~10.9.0",
+    "typescript": "~5.7.2",
+    "zone.js": "~0.15.0"
+  }
+}