feat: realtime notifications, fix broadcasting, add notifications page

- Fix: broadcasting.php config (was missing, broadcast failed)
- Fix: Echo class global scope (window.EchoClass)
- Fix: Nginx WebSocket proxy for Reverb
- Fix: Firewall port 8087 opened
- Fix: Duplicate event listener cleanup
- Fix: Mark as read functionality
- Add: CreateViolationNotification listener
- Add: Notifications index page with pagination
- Add: Timezone Asia/Jakarta support
- Add: Real-time badge across all pages
- Remove: toOthers() so recorder also gets notification
- Update: .env.example with new variables

resources/js/bootstrap.js

@@ -6,6 +6,7 @@ import Echo from 'laravel-echo';
 import Pusher from 'pusher-js';
 
 window.Pusher = Pusher;
+window.EchoClass = Echo;
 
 // Echo will be initialized when the page has the Reverb config
 // The actual Echo initialization is done conditionally in the layout