Refactor bulk import functionality to make controller smaller (use services) add DTOs and use stimulus controllers on frontend

src/Services/InfoProviderSystem/DTOs/BulkSearchRequestDTO.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services\InfoProviderSystem\DTOs;
+
+class BulkSearchRequestDTO
+{
+    public function __construct(
+        public readonly array $fieldMappings,
+        public readonly bool $prefetchDetails = false,
+        public readonly array $partIds = []
+    ) {}
+}