fix : 컨트롤러 검증 → FormRequest 분리

app/Http/Requests/Design/Model/UpdateRequest.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Http\Requests\Design\Model;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'code' => 'sometimes|string|max:100',
+            'name' => 'sometimes|string|max:200',
+            'category_id' => 'nullable|integer',
+            'lifecycle' => 'nullable|string|max:50',
+            'description' => 'nullable|string',
+            'is_active' => 'boolean',
+        ];
+    }
+}