fix: resolve staging report class and PDO compatibility

app/Domain/Reporting/ClientHistoryReport.php

@@ -1,5 +1,12 @@
 <?php
 declare(strict_types=1);
+namespace App\Domain\Reporting {
+
+use \ReportFilters;
+use \ReportDataMapper;
+use \ReportQuery;
+use \ReportAudience;
+
 require_once __DIR__ . '/ReportFilters.php';
 require_once __DIR__ . '/ReportDataMapper.php';
 require_once __DIR__ . '/ReportQuery.php';
@@ -21,3 +28,8 @@ final class ClientHistoryReport implements ReportQuery
     }
     public function query(array $rows, string $audience = 'client'): array { return $this->build($rows, $audience); }
 }
+}
+
+namespace {
+    if (!class_exists('ClientHistoryReport', false)) class_alias('App\\Domain\\Reporting\\ClientHistoryReport', 'ClientHistoryReport');
+}