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/@babel/helper-annotate-as-pure/lib/index.js

@@ -0,0 +1,23 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = annotateAsPure;
+var _t = require("@babel/types");
+const {
+  addComment
+} = _t;
+const PURE_ANNOTATION = "#__PURE__";
+const isPureAnnotated = ({
+  leadingComments
+}) => !!leadingComments && leadingComments.some(comment => /[@#]__PURE__/.test(comment.value));
+function annotateAsPure(pathOrNode) {
+  const node = pathOrNode["node"] || pathOrNode;
+  if (isPureAnnotated(node)) {
+    return;
+  }
+  addComment(node, "leading", PURE_ANNOTATION);
+}
+
+//# sourceMappingURL=index.js.map