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>

database/migrations/2026_03_10_100000_add_options_to_quality_document_locations.php

@@ -0,0 +1,22 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('quality_document_locations', function (Blueprint $table) {
+            $table->json('options')->nullable()->after('inspection_status')->comment('QMS 심사 확인 등 추가 데이터');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('quality_document_locations', function (Blueprint $table) {
+            $table->dropColumn('options');
+        });
+    }
+};