wip: insurance booking phases 1 and 2

src/Form/Model/ParticipantDto.php

@@ -108,21 +108,23 @@ class ParticipantDto
     }
 
     /**
-     * Calculates the participant's current age in complete years.
+     * Calculates the participant's age in complete years.
      *
      * Uses the same logic as existing age evaluators in the system
      * for consistency across age-related calculations.
      *
+     * @param \DateTimeImmutable|null $referenceDate The date to calculate age at (defaults to current date)
+     *
      * @return int|null The calculated age in complete years, or null if no birth date
      */
-    public function getAge(): ?int
+    public function getAge(?\DateTimeImmutable $referenceDate = null): ?int
     {
         if (null === $this->dateOfBirth) {
             return null;
         }
 
-        $today = new \DateTimeImmutable();
+        $referenceDate = $referenceDate ?? new \DateTimeImmutable();
 
-        return $this->dateOfBirth->diff($today)->y;
+        return $this->dateOfBirth->diff($referenceDate)->y;
     }
 }