feat:FQC 제품검사 문서 일괄생성 API 추가

- POST /v1/documents/bulk-create-fqc: 수주 개소별 제품검사 문서 일괄생성
- GET /v1/documents/fqc-status: 수주별 FQC 진행현황 조회
- BulkCreateFqcRequest FormRequest 추가
- error.php에 no_order_items, already_created 메시지 추가

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Http/Controllers/Api/V1/Documents/DocumentController.php

@@ -5,6 +5,7 @@
 use App\Helpers\ApiResponse;
 use App\Http\Controllers\Controller;
 use App\Http\Requests\Document\ApproveRequest;
+use App\Http\Requests\Document\BulkCreateFqcRequest;
 use App\Http\Requests\Document\IndexRequest;
 use App\Http\Requests\Document\RejectRequest;
 use App\Http\Requests\Document\ResolveRequest;
@@ -73,6 +74,41 @@ public function destroy(int $id): JsonResponse
         }, __('message.deleted'));
     }
 
+    // =========================================================================
+    // FQC 일괄생성 (제품검사)
+    // =========================================================================
+
+    /**
+     * 수주 개소별 제품검사 문서 일괄생성
+     * POST /v1/documents/bulk-create-fqc
+     */
+    public function bulkCreateFqc(BulkCreateFqcRequest $request): JsonResponse
+    {
+        return ApiResponse::handle(function () use ($request) {
+            return $this->service->bulkCreateFqc($request->validated());
+        }, __('message.created'));
+    }
+
+    /**
+     * 수주 FQC 진행현황 조회
+     * GET /v1/documents/fqc-status?order_id=1&template_id=65
+     */
+    public function fqcStatus(): JsonResponse
+    {
+        return ApiResponse::handle(function () {
+            $orderId = (int) request('order_id');
+            $templateId = (int) request('template_id');
+
+            if (! $orderId || ! $templateId) {
+                throw new \Symfony\Component\HttpKernel\Exception\BadRequestHttpException(
+                    __('validation.required', ['attribute' => 'order_id, template_id'])
+                );
+            }
+
+            return $this->service->fqcStatus($orderId, $templateId);
+        }, __('message.fetched'));
+    }
+
     // =========================================================================
     // Resolve/Upsert (React 연동용)
     // =========================================================================