Add non-null vehicleNumbers to booking list response

src/main/kotlin/com/android/trisolarisserver/controller/booking/BookingFlow.kt

@@ -189,6 +189,7 @@ class BookingFlow(
     }
 
     @GetMapping
+    @Transactional(readOnly = true)
     fun listBookings(
         @PathVariable propertyId: UUID,
         @AuthenticationPrincipal principal: MyPrincipal?,
@@ -238,6 +239,14 @@ class BookingFlow(
             chargeRepo.sumAmountByBookingIds(bookingIds)
                 .associate { it.bookingId to it.total }
         }
+        val guestIds = bookings.mapNotNull { it.primaryGuest?.id }.distinct()
+        val vehicleNumbersByGuest = if (guestIds.isEmpty()) {
+            emptyMap()
+        } else {
+            guestVehicleRepo.findRowsByGuestIds(guestIds)
+                .groupBy { it.guestId }
+                .mapValues { (_, rows) -> rows.map { it.vehicleNumber }.distinct().sorted() }
+        }
         return bookings.map { booking ->
             val guest = booking.primaryGuest
             val stays = staysByBooking[booking.id].orEmpty()
@@ -261,6 +270,7 @@ class BookingFlow(
                 guestId = guest?.id,
                 guestName = guest?.name,
                 guestPhone = guest?.phoneE164,
+                vehicleNumbers = guest?.id?.let { vehicleNumbersByGuest[it] } ?: emptyList(),
                 roomNumbers = roomNumbersByBooking[booking.id] ?: emptyList(),
                 source = booking.source,
                 billingMode = booking.billingMode.name,