feat: panel layout for the accommodation booking edit and detail pages

src/Controller/Admin/AccommodationBooking/EditController.php

@@ -12,6 +12,7 @@ use App\Form\Admin\Groups\AccommodationBookingType;
 use App\Repository\Groups\AdditionalServiceRepository;
 use App\Repository\Groups\BoardServiceRepository;
 use App\Repository\UserRepository;
+use App\Service\AccommodationBookingBreakdownCalculator;
 use App\Service\AccommodationBookingService;
 use Doctrine\ORM\EntityManagerInterface;
 use Psr\Log\LoggerInterface;
@@ -33,6 +34,7 @@ class EditController extends AbstractController
         private readonly AdditionalServiceRepository $additionalServiceRepo,
         private readonly UserRepository $userRepo,
         private readonly AccommodationBookingService $bookingService,
+        private readonly AccommodationBookingBreakdownCalculator $breakdownCalculator,
     ) {
     }
 
@@ -128,10 +130,7 @@ class EditController extends AbstractController
                 // The submitted changes stay on the entity but are never flushed, so the form
                 // comes back filled in with the error on it. Logging is safe here: the database
                 // handler writes through DBAL, not the EntityManager.
-                return $this->render('admin/accommodation_booking/edit.html.twig', [
-                    'booking' => $booking,
-                    'form' => $form,
-                ]);
+                return $this->renderForm($booking, $form);
             }
 
             // Editing never moves the booking on and never mails the customer: every status
@@ -160,9 +159,22 @@ class EditController extends AbstractController
             return $this->redirectToRoute('app_admin_accommodationbooking_show', $parameters);
         }
 
+        return $this->renderForm($booking, $form);
+    }
+
+    /**
+     * The sidebar shows the stored price, not one computed from the submitted values: after a
+     * refused save the entity carries the unsaved changes, and the price there is labelled as the
+     * state of the last save.
+     *
+     * @param FormInterface<AccommodationBooking> $form
+     */
+    private function renderForm(AccommodationBooking $booking, FormInterface $form): Response
+    {
         return $this->render('admin/accommodation_booking/edit.html.twig', [
             'booking' => $booking,
             'form' => $form,
+            'priceBreakdown' => $this->breakdownCalculator->compute($booking),
         ]);
     }
 

src/Form/Admin/Groups/AccommodationBookingPeriodType.php

@@ -18,10 +18,11 @@ class AccommodationBookingPeriodType extends AbstractType
     public function buildForm(FormBuilderInterface $builder, array $options): void
     {
         $builder
+            // "Überschrift" rather than "Bezeichnung", which the lines below use for their own field.
             ->add('label', TextType::class, [
-                'label' => 'Bezeichnung',
+                'label' => 'Überschrift (optional)',
                 'required' => false,
-                'help' => 'Überschrift in der Preisaufstellung, z. B. „Vorausteam“. Ohne Bezeichnung steht dort nur der Zeitraum.',
+                'attr' => ['placeholder' => 'z. B. Vorausteam'],
             ])
             ->add('nights', IntegerType::class, [
                 'label' => 'Nächte',