feat: add RichTextEditor component for rich text editing in articles

feat: create SanitizeBlogBodiesCommand to clean existing blog bodies according to current HTML sanitization policies

test: add AppointmentTreatmentSessionLinkTest to ensure appointment booking functionality works correctly with treatment session links

src/Doctor/Service/DoctorClaimService.php

@@ -149,7 +149,7 @@ class DoctorClaimService
 
     private function finalize(Doctor $doctor, User $target, DoctorClaimRequest $claim, ?string $nationalCode): void
     {
-        $surrogate = $this->em->wrapInTransaction(function () use ($doctor, $target, $claim, $nationalCode): ?User {
+        $surrogate = $this->em->wrapInTransaction(function () use ($doctor, $target, $claim, $nationalCode): User {
             $locked = $this->em->find(Doctor::class, $doctor->getId(), LockMode::PESSIMISTIC_WRITE);
 
             if ($locked->getOwnerStatus() !== 'pending_transfer') {
@@ -170,8 +170,7 @@ class DoctorClaimService
         });
 
         // حذف امن جانشین — پس از flush انتقال، تا شمارش پزشکانِ متصل قطعی باشد
-        if ($surrogate !== null
-            && $surrogate->getId() !== $target->getId()
+        if ($surrogate->getId() !== $target->getId()
             && $surrogate->hasRole(DoctorImportService::ROLE_UNCLAIMED_DOCTOR)
             && $this->em->getRepository(Doctor::class)->count(['user' => $surrogate]) === 0) {
             $this->em->remove($surrogate);