wip: booking process

src/Form/Model/BookingEditDto.php

@@ -13,6 +13,9 @@ class BookingEditDto
     public ?Booking $booking = null;
     public ?Travel $travel = null;
 
+    /**
+     * @var array<int, ParticipantDto>
+     */
     #[Assert\Valid]
     public array $participants = [];