feat: [문서인쇄] 스냅샷 출력 + 절곡 전용 렌더링

- print.blade.php rendered_html 스냅샷 우선 출력
- bending-inspection-data, bending-worklog 파셜 추가
- documents/show.blade.php 개선
- DocumentTemplateSection 모델 보완

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

app/Http/Controllers/DocumentController.php

@@ -271,6 +271,22 @@ public function show(int $id): View
         // 기본정보 bf_ 자동 backfill
         $this->resolveAndBackfillBasicFields($document);
 
+        // 절곡 작업일지용: bending_info 추출
+        $bendingInfo = null;
+        if ($workOrder) {
+            $woOptions = json_decode($workOrder->options ?? '{}', true);
+            $bendingInfo = $woOptions['bending_info'] ?? null;
+        }
+
+        // 절곡 중간검사용: inspection_data 스냅샷 추출 (work_order_items.options.inspection_data)
+        $inspectionData = null;
+        foreach ($workOrderItems as $item) {
+            if (! empty($item->options['inspection_data'])) {
+                $inspectionData = $item->options['inspection_data'];
+                break;
+            }
+        }
+
         return view('documents.show', [
             'document' => $document,
             'workOrderItems' => $workOrderItems,
@@ -279,6 +295,8 @@ public function show(int $id): View
             'materialInputLots' => $materialInputLots,
             'itemLotMap' => $itemLotMap ?? collect(),
             'blockHtml' => $this->renderBlockHtml($document->template, $document, 'view'),
+            'bendingInfo' => $bendingInfo,
+            'inspectionData' => $inspectionData,
         ]);
     }
 
@@ -295,7 +313,7 @@ private function resolveAndBackfillBasicFields(Document $document): void
         }
 
         // bf_ 레코드가 하나라도 있으면 이미 저장된 것 → skip
-        $existingBfCount = $document->data
+        $existingBfCount = ($document->data ?? collect())
             ->filter(fn ($d) => str_starts_with($d->field_key, 'bf_'))
             ->count();
         if ($existingBfCount > 0) {