feat: 통합 감사 로그 도입 및 조회 API/스케줄러 추가

- DB: 감사 로그 테이블(audit_logs) 마이그레이션 및 인덱스 추가
- Config: audit.php 추가(AUDIT_RETENTION_DAYS, AUDIT_LOG_READS 토글)
- Model/Service: AuditLog 모델, AuditLogger 서비스 생성
- 도메인 훅: ModelVersion.release(released), BomTemplate upsert/update/delete/replaceItems/clone 기록, diff 조회는 설정 기반 기록
- API: GET /api/v1/design/audit-logs 추가(FormRequest/Service/Controller, 필터 page/size/target_type/target_id/action/actor_id/from/to/sort/order)
- Swagger: 감사 로그 조회 문서 추가(Design Audit 태그)
- Console: audit:prune 커맨드 추가 및 스케줄러 매일 03:10 실행 등록(시스템 크론 schedule:run 필요)
- Fix: PruneAuditLogs import 충돌 제거(Google ServiceControl AuditLog 제거)

app/Services/Design/BomTemplateService.php

@@ -51,6 +51,9 @@ public function upsertTemplate(int $modelVersionId, string $name = 'Main', bool
                 ->where('name', $name)
                 ->first();
 
+            $action = 'created';
+            $before = null;
+
             if (!$tpl) {
                 $tpl = BomTemplate::create([
                     'tenant_id'        => $tenantId,
@@ -60,6 +63,8 @@ public function upsertTemplate(int $modelVersionId, string $name = 'Main', bool
                     'notes'            => $notes,
                 ]);
             } else {
+                $action = 'updated';
+                $before = $tpl->toArray();
                 $tpl->fill(['is_primary' => $isPrimary, 'notes' => $notes])->save();
             }
 
@@ -70,6 +75,16 @@ public function upsertTemplate(int $modelVersionId, string $name = 'Main', bool
                     ->update(['is_primary' => false]);
             }
 
+            // 감사 로그
+            app(\App\Services\Audit\AuditLogger::class)->log(
+                tenantId: $tenantId,
+                targetType: 'bom_template',
+                targetId: $tpl->id,
+                action: $action,
+                before: $before,
+                after: $tpl->toArray()
+            );
+
             return $tpl;
         });
     }
@@ -99,6 +114,7 @@ public function updateTemplate(int $templateId, array $data): BomTemplate
             }
         }
 
+        $before = $tpl->toArray();
         $tpl->fill($data)->save();
 
         if (array_key_exists('is_primary', $data) && $data['is_primary']) {
@@ -109,6 +125,16 @@ public function updateTemplate(int $templateId, array $data): BomTemplate
                 ->update(['is_primary' => false]);
         }
 
+        // 감사 로그
+        app(\App\Services\Audit\AuditLogger::class)->log(
+            tenantId: $tenantId,
+            targetType: 'bom_template',
+            targetId: $tpl->id,
+            action: 'updated',
+            before: $before,
+            after: $tpl->toArray()
+        );
+
         return $tpl;
     }
 
@@ -125,7 +151,18 @@ public function deleteTemplate(int $templateId): void
             throw new NotFoundHttpException(__('error.not_found'));
         }
 
+        $before = $tpl->toArray();
         $tpl->delete();
+
+        // 감사 로그
+        app(\App\Services\Audit\AuditLogger::class)->log(
+            tenantId: $tenantId,
+            targetType: 'bom_template',
+            targetId: $tpl->id,
+            action: 'deleted',
+            before: $before,
+            after: null
+        );
     }
 
     /** 템플릿 상세 (옵션: 항목 포함) */
@@ -214,6 +251,26 @@ public function replaceItems(int $templateId, array $items): void
             if (!empty($payloads)) {
                 BomTemplateItem::insert($payloads);
             }
+
+            // 감사 로그
+            app(\App\Services\Audit\AuditLogger::class)->log(
+                tenantId: $tenantId,
+                targetType: 'bom_template',
+                targetId: $tpl->id,
+                action: 'items_replaced',
+                before: ['items' => $beforeItems],
+                after: ['items' => array_map(function ($p) {
+                    return [
+                        'ref_type' => $p['ref_type'],
+                        'ref_id' => $p['ref_id'],
+                        'qty' => (float) $p['qty'],
+                        'waste_rate' => (float) $p['waste_rate'],
+                        'uom_id' => $p['uom_id'],
+                        'notes' => $p['notes'],
+                        'sort_order' => $p['sort_order'],
+                    ];
+                }, $payloads)]
+            );
         });
     }
 
@@ -309,7 +366,7 @@ public function diffTemplates(int $leftTemplateId, int $rightTemplateId): array
             }
         }
 
-        return [
+        $result = [
             'left_template_id'  => $left->id,
             'right_template_id' => $right->id,
             'summary' => [
@@ -321,6 +378,19 @@ public function diffTemplates(int $leftTemplateId, int $rightTemplateId): array
             'removed' => $removed,
             'changed' => $changed,
         ];
+
+        if (config('audit.log_reads', false)) {
+            app(\App\Services\Audit\AuditLogger::class)->log(
+                tenantId: $tenantId,
+                targetType: 'bom_template',
+                targetId: $left->id,
+                action: 'diff_viewed',
+                before: ['left' => $left->id, 'right' => $right->id],
+                after: ['summary' => $result['summary']]
+            );
+        }
+
+        return $result;
     }
 
     /** 템플릿 복제(깊은 복사) */
@@ -394,6 +464,16 @@ public function cloneTemplate(int $templateId, ?int $targetVersionId = null, ?st
                     ->update(['is_primary' => false]);
             }
 
+            // 감사 로그
+            app(\App\Services\Audit\AuditLogger::class)->log(
+                tenantId: $tenantId,
+                targetType: 'bom_template',
+                targetId: $dest->id,
+                action: 'cloned',
+                before: ['source_template_id' => $src->id],
+                after: $dest->toArray()
+            );
+
             return $dest;
         });
     }