fix : 모델, BOM 구성 수정

- 설계용 모델, BOM 기능 추가

app/Http/Controllers/Api/V1/Design/ModelVersionController.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Http\Controllers\Api\V1\Design;
+
+use App\Helpers\ApiResponse;
+use App\Http\Controllers\Controller;
+use App\Services\Design\ModelVersionService;
+use Illuminate\Http\Request;
+
+class ModelVersionController extends Controller
+{
+    public function __construct(
+        protected ModelVersionService $service
+    ) {}
+
+    public function index(int $modelId)
+    {
+        return ApiResponse::handle(fn() => $this->service->listByModel($modelId), __('message.fetched'));
+    }
+
+    public function createDraft(Request $request, int $modelId)
+    {
+        return ApiResponse::handle(function () use ($request, $modelId) {
+            $payload = $request->validate([
+                'version_no'     => 'nullable|integer|min:1',
+                'notes'          => 'nullable|string',
+                'effective_from' => 'nullable|date',
+                'effective_to'   => 'nullable|date|after:effective_from',
+            ]);
+            return $this->service->createDraft($modelId, $payload);
+        }, __('message.created'));
+    }
+
+    public function release(int $versionId)
+    {
+        return ApiResponse::handle(fn() => $this->service->release($versionId), __('message.updated'));
+    }
+}