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

app/Services/ViolationService.php

@@ -127,7 +127,7 @@ class ViolationService
             }
 
             // Broadcast via Reverb
-            broadcast(new ViolationRecorded($violation))->toOthers();
+            broadcast(new ViolationRecorded($violation));
         } catch (\Exception $e) {
             \Illuminate\Support\Facades\Log::error('Notify realtime failed: ' . $e->getMessage());
         }