fix : 카테고리, 제품등록, BOM등록 API (일부 개발 - BOM 추가 작업 필요)

app/Http/Controllers/Api/V1/CategoryFieldController.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Http\Controllers\Api\V1;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\Request;
+use App\Services\CategoryFieldService;
+use App\Helpers\ApiResponse;
+
+class CategoryFieldController extends Controller
+{
+    public function __construct(private CategoryFieldService $service) {}
+
+    // GET /categories/{id}/fields
+    public function index(int $id, Request $request)
+    {
+        return ApiResponse::handle(function () use ($id, $request) {
+            return $this->service->index($id, $request->all());
+        }, '카테고리 필드 목록');
+    }
+
+    // POST /categories/{id}/fields
+    public function store(int $id, Request $request)
+    {
+        return ApiResponse::handle(function () use ($id, $request) {
+            return $this->service->store($id, $request->all());
+        }, '카테고리 필드 생성');
+    }
+
+    // GET /categories/fields/{field}
+    public function show(int $field)
+    {
+        return ApiResponse::handle(function () use ($field) {
+            return $this->service->show($field);
+        }, '카테고리 필드 조회');
+    }
+
+    // PATCH /categories/fields/{field}
+    public function update(int $field, Request $request)
+    {
+        return ApiResponse::handle(function () use ($field, $request) {
+            return $this->service->update($field, $request->all());
+        }, '카테고리 필드 수정');
+    }
+
+    // DELETE /categories/fields/{field}
+    public function destroy(int $field)
+    {
+        return ApiResponse::handle(function () use ($field) {
+            $this->service->destroy($field);
+            return 'success';
+        }, '카테고리 필드 삭제');
+    }
+
+    // POST /categories/{id}/fields/reorder
+    public function reorder(int $id, Request $request)
+    {
+        return ApiResponse::handle(function () use ($id, $request) {
+            $this->service->reorder($id, $request->input());
+            return 'success';
+        }, '카테고리 필드 정렬 저장');
+    }
+
+    // PUT /categories/{id}/fields/bulk-upsert
+    public function bulkUpsert(int $id, Request $request)
+    {
+        return ApiResponse::handle(function () use ($id, $request) {
+            return $this->service->bulkUpsert($id, $request->input('items', []));
+        }, '카테고리 필드 일괄 업서트');
+    }
+}