feat(services): match Figma خدمات page in settings shell + multi-staff

Render the clinic services page (sections → services) inside the settings
sub-navigation shell (SettingsLayout, "خدمات" active) to match the Figma
settings design. Restyle section cards to show the service count and a
status toggle with edit/delete actions, and service cards with labelled
price/duration and personnel chips.

A service can now have multiple personnel: add an additive many-to-many
ServiceItem↔ClinicStaff (staffMembers, EAGER) while keeping the legacy
single `staff` column mirrored for backward compatibility. Endpoints accept
`staff_uuids[]` (falling back to the legacy single `staff_uuid`) and return
`staff_members[]`; the section list now reports `items_count`.

Backfill-safe: pre-migration rows fall back to the single staff in toArray.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/ClinicService/Repository/ServiceItemRepository.php

@@ -29,6 +29,34 @@ class ServiceItemRepository extends ServiceEntityRepository
             ->getResult();
     }
 
+    /**
+     * Count services per section in a single query (avoids N+1 in the section list).
+     *
+     * @param ServiceSection[] $sections
+     * @return array<string,int> section uuid → number of services
+     */
+    public function countBySections(array $sections): array
+    {
+        if (empty($sections)) {
+            return [];
+        }
+
+        $rows = $this->createQueryBuilder('i')
+            ->select('s.uuid AS uuid, COUNT(i.id) AS cnt')
+            ->join('i.section', 's')
+            ->where('i.section IN (:sections)')
+            ->setParameter('sections', $sections)
+            ->groupBy('s.uuid')
+            ->getQuery()
+            ->getScalarResult();
+
+        $counts = [];
+        foreach ($rows as $row) {
+            $counts[$row['uuid']] = (int) $row['cnt'];
+        }
+        return $counts;
+    }
+
     public function save(ServiceItem $item): void
     {
         $this->getEntityManager()->persist($item);