wip: refactor to cards with individual participant forms

src/Form/Service/ParticipantInsuranceFieldHandler.php

@@ -76,27 +76,34 @@ class ParticipantInsuranceFieldHandler extends AbstractParticipantFieldHandler
     /**
      * Determines if this handler should process the field based on submitted data.
      *
-     * For insurance selection fields, we always need to process to handle cases
-     * where the selection is cleared (field not present in data). This ensures
-     * the participant DTO is updated with null when no insurance is selected.
+     * Insurance handler should NOT process in edit mode because the BPN API does not
+     * return insurance data. In edit mode, insurance data must be preserved as-is
+     * and passed through to the update endpoint unchanged.
      *
-     * However, when bulk insurance booking is active for a dependent participant,
-     * we skip processing to prevent overwriting the insurance assigned by the
-     * bulk insurance handler.
+     * In create mode, we always need to process to handle cases where the selection
+     * is cleared (field not present in data). However, when bulk insurance booking
+     * is active for a dependent participant, we skip processing to prevent overwriting
+     * the insurance assigned by the bulk insurance handler.
      *
      * @param array<string, mixed> $submittedData    The submitted participant form data
+     * @param string               $mode             The booking mode (BookingDto::MODE_CREATE or MODE_EDIT)
      * @param int                  $participantIndex The index of the participant being processed
      *
-     * @return bool True if processing should occur, false if bulk insurance handles it
+     * @return bool True if processing should occur, false otherwise
      */
-    public function shouldProcess(array $submittedData, int $participantIndex): bool
+    public function shouldProcess(array $submittedData, string $mode, int $participantIndex): bool
     {
+        // In edit mode, insurance data is not available from API - skip processing entirely
+        if ($mode === BookingDto::MODE_EDIT) {
+            return false;
+        }
+
         // Skip processing for dependent participants when bulk insurance booking is active
         if ($participantIndex > 0 && $this->isBulkInsuranceBookingActive($submittedData)) {
             return false;
         }
 
-        return true; // Always process to handle deselection cases
+        return true; // Always process in create mode to handle deselection cases
     }
 
     /**