feat: [QMS] 2일차 로트 추적 심사 API 구현 (Phase 1)

- QmsLotAuditService: 품질관리서 목록/상세, 8종 서류 조합, 서류 상세(2단계 로딩), 확인 토글
- QmsLotAuditController: 5개 엔드포인트 (index, show, routeDocuments, documentDetail, confirm)
- FormRequest 3개: Index, Confirm, DocumentDetail 파라미터 검증
- QualityDocumentLocation: options JSON 컬럼 추가 (마이그레이션 + 모델 casts)
- IQC 추적: WorkOrderMaterialInput → StockLot → lot_no → Inspection(IQC) 경로
- 비관적 업데이트: DB::transaction + lockForUpdate() 원자성 보장

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

routes/api/v1/quality.php

@@ -8,6 +8,7 @@
  */
 
 use App\Http\Controllers\Api\V1\PerformanceReportController;
+use App\Http\Controllers\Api\V1\QmsLotAuditController;
 use App\Http\Controllers\Api\V1\QualityDocumentController;
 use Illuminate\Support\Facades\Route;
 
@@ -38,3 +39,12 @@
     Route::patch('/unconfirm', [PerformanceReportController::class, 'unconfirm'])->name('v1.quality.performance-reports.unconfirm');
     Route::patch('/memo', [PerformanceReportController::class, 'updateMemo'])->name('v1.quality.performance-reports.memo');
 });
+
+// QMS 로트 추적 심사
+Route::prefix('qms/lot-audit')->group(function () {
+    Route::get('/reports', [QmsLotAuditController::class, 'index'])->name('v1.qms.lot-audit.reports');
+    Route::get('/reports/{id}', [QmsLotAuditController::class, 'show'])->whereNumber('id')->name('v1.qms.lot-audit.reports.show');
+    Route::get('/routes/{id}/documents', [QmsLotAuditController::class, 'routeDocuments'])->whereNumber('id')->name('v1.qms.lot-audit.routes.documents');
+    Route::get('/documents/{type}/{id}', [QmsLotAuditController::class, 'documentDetail'])->whereNumber('id')->name('v1.qms.lot-audit.documents.detail');
+    Route::patch('/units/{id}/confirm', [QmsLotAuditController::class, 'confirm'])->whereNumber('id')->name('v1.qms.lot-audit.units.confirm');
+});