feat: add 3 mounth

app/Models/Product.php

@@ -18,6 +18,7 @@ class Product extends Model
         'yearly' => 2,
         '6months' => 3,
         'monthly' => 4,
+        '3months' => 5,
     ];
 
     public function users()
@@ -51,6 +52,7 @@ public function buy($user, $purchaseToken = null, $gateway = null)
             2 => $expireDate->addDays(30 * 12)->format('Y-m-d H:i:s'),
             3 => $expireDate->addDays(30 * 6)->format('Y-m-d H:i:s'),
             4 => $expireDate->addDays(30 * 1)->format('Y-m-d H:i:s'),
+            5 => $expireDate->addDays(30 * 3)->format('Y-m-d H:i:s'),
         };
 
         if ($this->users()->where('users.id', $user->id)->exists()) {