Initial commit: Aplikasi Ketertiban Siswa

- Fitur: input pelanggaran, sistem poin, surat peringatan otomatis, SP progress
- Realtime notifikasi via Laravel Reverb + Echo
- Dashboard statistik, manajemen user, manajemen master data
- Login 2 kolom premium, user dropdown, pengaturan akun
- Tema biru kalem, logo sekolah dinamis, sidebar brand dinamis
- Sinkronisasi siswa dari Database Kesiswaan via API

app/Models/AppNotification.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class AppNotification extends Model
+{
+    protected $table = 'notifications';
+
+    protected $fillable = [
+        'user_id', 'type', 'title', 'body', 'data',
+        'icon', 'color', 'action_url', 'is_read',
+        'read_at', 'violation_id', 'sp_letter_id',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'data' => 'json',
+            'is_read' => 'boolean',
+            'read_at' => 'datetime',
+        ];
+    }
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function violation()
+    {
+        return $this->belongsTo(Violation::class);
+    }
+
+    public function spLetter()
+    {
+        return $this->belongsTo(SpLetter::class, 'sp_letter_id');
+    }
+
+    public function scopeUnread($query)
+    {
+        return $query->where('is_read', false);
+    }
+}