refactor(support): centralize ID-array normalization in toIntIds()

Consolidates the scattered `array_values(array_unique(array_map('intval',
$x)))` + manual positive-filter pattern behind a single lenient helper
`toIntIds(mixed $value): array` in core/Support/helpers/array.php.

- `RepositoryArrayHelper::sanitizePositiveIds()` now delegates (keeps
  strict array-input contract + existing tests intact).
- Drops two private duplicates: `UserProfileViewService::normalizeIds()`
  and `AddressBookService::normalizeIds()`.
- Replaces 12 inline occurrences across admin action pages with the
  helper, cutting boilerplate by 3-5 lines per site.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

modules/addressbook/lib/Module/AddressBook/Service/AddressBookService.php

@@ -33,7 +33,7 @@ class AddressBookService
         $activeRoles = $this->splitCommaValues($query['roles'] ?? '');
         $activeDepartments = $this->splitCommaValues($query['departments'] ?? '');
 
-        $tenantIds = $this->normalizeIds($this->scopeGateway->getUserTenantIds($currentUserId));
+        $tenantIds = toIntIds($this->scopeGateway->getUserTenantIds($currentUserId));
         $tenants = $this->tenantService->list();
         if ($tenantIds) {
             $allowedTenantMap = array_fill_keys($tenantIds, true);
@@ -318,12 +318,6 @@ class AddressBookService
         ));
     }
 
-    private function normalizeIds(array $values): array
-    {
-        $ids = array_values(array_unique(array_map('intval', $values)));
-        return array_values(array_filter($ids, static fn (int $id): bool => $id > 0));
-    }
-
     // Accepts either a '||'-delimited DB aggregate string (from GROUP_CONCAT) or a plain array.
     private function normalizeLabelList($value): array
     {