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/strings.js

@@ -0,0 +1,23 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.utf8 = exports.ascii = void 0;
+const bufferToUint8Array_1 = require("./bufferToUint8Array");
+const ascii = (txt) => {
+    if (typeof txt === 'string')
+        return (0, exports.ascii)([txt]);
+    [txt] = txt;
+    const len = txt.length;
+    const res = new Uint8Array(len);
+    for (let i = 0; i < len; i++)
+        res[i] = txt.charCodeAt(i);
+    return res;
+};
+exports.ascii = ascii;
+const utf8 = (txt) => {
+    if (typeof txt === 'string')
+        return (0, exports.utf8)([txt]);
+    [txt] = txt;
+    return (0, bufferToUint8Array_1.bufferToUint8Array)(Buffer.from(txt, 'utf8'));
+};
+exports.utf8 = utf8;
+//# sourceMappingURL=strings.js.map