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/views/notifications/index.blade.php

@@ -0,0 +1,45 @@
+@extends('layouts.app')
+
+@section('title', 'Semua Notifikasi')
+
+@section('content')
+<div>
+    <div class="mb-6">
+        <h1 class="text-2xl font-bold text-gray-900">Semua Notifikasi</h1>
+        <p class="text-sm text-gray-500">Riwayat notifikasi pelanggaran siswa</p>
+    </div>
+
+    <div class="bg-white rounded-xl shadow-sm border border-gray-200 overflow-hidden">
+        @if($notifications->count() > 0)
+            <div class="divide-y divide-gray-100">
+                @foreach($notifications as $notif)
+                    <a href="{{ $notif->action_url ?: '#' }}" onclick="event.preventDefault(); fetch('/notifications/{{ $notif->id }}/read', { method: 'POST', headers: { 'X-CSRF-TOKEN': document.querySelector('meta[name=csrf-token]').content } }).then(() => { window.location = this.href; });" class="block px-6 py-4 hover:bg-gray-50 transition-colors {{ !$notif->is_read ? 'bg-blue-50/50' : '' }}">
+                        <div class="flex items-start space-x-3">
+                            <div class="flex-shrink-0 w-10 h-10 rounded-full flex items-center justify-center {{ $notif->color ? 'bg-'.$notif->color.'-100' : 'bg-blue-100' }}">
+                                <i class="fa-solid fa-bell text-gray-600"></i>
+                            </div>
+                            <div class="flex-1 min-w-0">
+                                <p class="text-sm font-medium text-gray-900">{{ $notif->title }}</p>
+                                <p class="text-sm text-gray-500">{{ $notif->body }}</p>
+                                <p class="text-xs text-gray-400 mt-1">{{ $notif->created_at->diffForHumans() }}</p>
+                            </div>
+                            @if(!$notif->is_read)
+                                <span class="flex-shrink-0 w-2 h-2 mt-2 bg-blue-500 rounded-full"></span>
+                            @endif
+                        </div>
+                    </a>
+                @endforeach
+            </div>
+
+            <div class="px-6 py-4 border-t border-gray-100">
+                {{ $notifications->links() }}
+            </div>
+        @else
+            <div class="px-6 py-12 text-center">
+                <i class="fa-regular fa-bell text-4xl text-gray-300 mb-3"></i>
+                <p class="text-sm text-gray-500">Belum ada notifikasi</p>
+            </div>
+        @endif
+    </div>
+</div>
+@endsection