feat: [품질관리] order_ids 영속성 + location 데이터 저장

- StoreRequest/UpdateRequest에 order_ids 검증 추가
- UpdateRequest에 locations 검증 추가 (시공규격, 변경사유, 검사데이터)
- QualityDocumentLocation에 inspection_data(JSON) fillable/cast 추가
- QualityDocumentService store()에 syncOrders 연동
- QualityDocumentService update()에 syncOrders + updateLocations 연동
- inspection_data 컬럼 추가 migration 신규

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

database/migrations/2026_03_06_094425_add_inspection_data_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('inspection_data')->nullable()->after('change_reason')->comment('검사 데이터 JSON');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('quality_document_locations', function (Blueprint $table) {
+            $table->dropColumn('inspection_data');
+        });
+    }
+};