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/@jsonjoy.com/buffers/lib/cmpUint8Array2.js

@@ -0,0 +1,24 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.cmpUint8Array2 = void 0;
+/**
+ * Compares two `Uint8Arrays` byte-by-byte. Returns a negative number if `a` is
+ * less than `b`, a positive number if `a` is greater than `b`, or 0 if `a` is
+ * equal to `b`.
+ *
+ * @returns A negative number if a is less than b, a positive number if a is
+ *         greater than b, or 0 if a is equal to b.
+ */
+const cmpUint8Array2 = (a, b) => {
+    const len1 = a.length;
+    const len2 = b.length;
+    const len = Math.min(len1, len2);
+    for (let i = 0; i < len; i++) {
+        const diffChar = a[i] - b[i];
+        if (diffChar !== 0)
+            return diffChar;
+    }
+    return len1 - len2;
+};
+exports.cmpUint8Array2 = cmpUint8Array2;
+//# sourceMappingURL=cmpUint8Array2.js.map