feat: chat en tiempo real bidireccional funcionando con Reverb

app/Models/Friendship.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Friendship extends Model
+{
+    protected $fillable = [
+        'sender_id',
+        'receiver_id',
+        'status',
+    ];
+
+    public function sender()
+    {
+        return $this->belongsTo(User::class, 'sender_id');
+    }
+
+    public function receiver()
+    {
+        return $this->belongsTo(User::class, 'receiver_id');
+    }
+}

app/Models/Message.php

@@ -7,13 +7,25 @@ use Illuminate\Database\Eloquent\Model;
 class Message extends Model
 {
     protected $fillable = [
-        'conversation_id',
         'user_id',
-        'message'
+        'receiver_id',
+        'body',
+        'attachment',
+        'attachment_type',
+        'read_at',
     ];
 
-    public function user()
+    protected $casts = [
+        'read_at' => 'datetime',
+    ];
+
+    public function sender()
     {
-        return $this->belongsTo(User::class);
+        return $this->belongsTo(User::class, 'user_id');
+    }
+
+    public function receiver()
+    {
+        return $this->belongsTo(User::class, 'receiver_id');
     }
 }