messages implemented

app/Models/MessageAttachment.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class MessageAttachment extends Model
+{
+    use HasFactory;
+
+    public $timestamps = false;
+
+    protected $fillable = [
+        'message_id',
+        'user_id',
+        'type',
+        'mime',
+        'size_bytes',
+        'width',
+        'height',
+        'sha256',
+        'original_name',
+        'storage_path',
+        'created_at',
+    ];
+
+    protected $casts = [
+        'size_bytes' => 'integer',
+        'width' => 'integer',
+        'height' => 'integer',
+        'created_at' => 'datetime',
+    ];
+
+    public function message(): BelongsTo
+    {
+        return $this->belongsTo(Message::class);
+    }
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+}