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/fast-uri/test/ajv.test.js

@@ -0,0 +1,43 @@
+'use strict'
+
+const test = require('tape')
+const fastURI = require('..')
+
+const AJV = require('ajv')
+
+const ajv = new AJV({
+  uriResolver: fastURI // comment this line to see it works with uri-js
+})
+
+test('ajv', t => {
+  t.plan(1)
+  const schema = {
+    $ref: '#/definitions/Record%3Cstring%2CPerson%3E',
+    definitions: {
+      Person: {
+        type: 'object',
+        properties: {
+          firstName: {
+            type: 'string'
+          }
+        }
+      },
+      'Record<string,Person>': {
+        type: 'object',
+        additionalProperties: {
+          $ref: '#/definitions/Person'
+        }
+      }
+    }
+  }
+
+  const data = {
+    joe: {
+      firstName: 'Joe'
+    }
+
+  }
+
+  const validate = ajv.compile(schema)
+  t.ok(validate(data))
+})