feat: inform user about automatic reassignments or reset selections

src/Form/Service/ParticipantInsuranceFieldHandler.php

@@ -151,6 +151,13 @@ class ParticipantInsuranceFieldHandler extends AbstractParticipantFieldHandler
                         $bookingDto
                     );
                     $participant->insurance = $reassignedInsurance;
+
+                    if (null !== $reassignedInsurance) {
+                        $participant->addNotification(
+                            'info',
+                            sprintf('Versicherung automatisch angepasst: %s', $reassignedInsurance->label)
+                        );
+                    }
                 }
             } else {
                 // Insurance not found - clear selection
@@ -174,6 +181,14 @@ class ParticipantInsuranceFieldHandler extends AbstractParticipantFieldHandler
                     $participant,
                     $bookingDto
                 );
+
+                if (null !== $reassignedInsurance && $reassignedInsurance->id !== $currentInsurance->id) {
+                    $participant->addNotification(
+                        'info',
+                        sprintf('Versicherung automatisch angepasst an neuen Preis: %s', $reassignedInsurance->label)
+                    );
+                }
+
                 $participant->insurance = $reassignedInsurance; // null if no suitable match found
             }