feat: tambah halaman kontak publik dan inbox pesan masuk di dashboard

app/Models/ContactMessage.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ContactMessage extends Model
+{
+    protected $fillable = ['name', 'email', 'phone', 'subject', 'message', 'read_at'];
+
+    protected $casts = ['read_at' => 'datetime'];
+}