feat(search): implement catalog item search functionality with request validation and resource formatting

app/Domains/Catalog/Requests/SearchCatalogItemsRequest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Domains\Catalog\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class SearchCatalogItemsRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /** @return array<string, list<string>> */
+    public function rules(): array
+    {
+        return [
+            'q' => ['required', 'string', 'min:2', 'max:100'],
+            'page' => ['sometimes', 'integer', 'min:1'],
+        ];
+    }
+
+    protected function prepareForValidation(): void
+    {
+        if ($this->has('q') && is_string($this->input('q'))) {
+            $this->merge(['q' => trim($this->string('q')->toString())]);
+        }
+    }
+}