fix(profile): sync User.real_name from profile name on create/update

When a user completes their profile (POST/PATCH /api/v1/user-profile), the
name was only stored on the profile (label/family) and User.real_name stayed
empty — so users who registered via booking showed with no name in the admin
user list. hydrate() now mirrors the profile's full name (label + family)
onto the owning User.realName, persisted in the same flush.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/UserProfile/Controller/UserProfileController.php

@@ -182,5 +182,12 @@ class UserProfileController extends BaseController
                 : $data['other'];
             $profile->setOther($other);
         }
+
+        // Keep the owning user's display name (real_name) in sync with the profile,
+        // so admin user listings and anywhere reading real_name show a name.
+        if (array_key_exists('name', $data) || array_key_exists('label', $data) || array_key_exists('family', $data)) {
+            $fullName = trim(implode(' ', array_filter([$profile->getLabel(), $profile->getFamily()])));
+            $profile->getUser()->setRealName($fullName !== '' ? $fullName : null);
+        }
     }
 }