feat: always load fresh api data when starting to edit booking

src/BusProNet/DataProcessor/BookingDataProcessor.php

@@ -233,7 +233,8 @@ class BookingDataProcessor
             $participant->transportationInbound = $travel->transportationServices[$participant->transportationInbound->id];
         }
 
-        // Enrich pickup
+        // Enrich pickup (only outbound - API limitation: pickups are only supported when
+        // outbound transportation is bus; inbound-only bus bookings cannot have pickups)
         if (null !== $participant->pickup && isset($travel->pickupsOutbound[$participant->pickup->id])) {
             $participant->pickup = $travel->pickupsOutbound[$participant->pickup->id];
         }

src/BusProNet/Model/Booking.php

@@ -136,7 +136,8 @@ class Booking
      * Retrieves pickup service for a specific participant.
      *
      * Finds the pickup service assigned to the specified participant
-     * from the outbound pickup services.
+     * from the outbound pickup services. The API only supports pickups
+     * when outbound transportation is bus.
      *
      * @param int $participantIndex The participant index to search for
      *