feat: Equipment DTO 호환성 수정 전 백업 커밋

- Equipment DTO 필드명 변경 (name → equipment_number 등) 완료
- Phase 1-7 파생 수정사항 체계적 진행 예정
- 통합 모델 정리, Controller 동기화, UI 업데이트 예정

🤖 Generated with [Claude Code](https://claude.ai/code)

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

lib/services/equipment_service.dart

@@ -130,7 +130,12 @@ class EquipmentService {
   Future<Equipment> createEquipment(Equipment equipment) async {
     try {
       final request = CreateEquipmentRequest(
-        equipmentNumber: 'EQ-${DateTime.now().millisecondsSinceEpoch}', // 자동 생성 번호
+        // 🔧 [BUG FIX] 사용자가 입력한 장비 번호를 우선 사용, 없으면 자동 생성
+        // 기존: 항상 타임스탬프 기반 자동 생성으로 사용자 입력 무시
+        // 수정: equipment.equipmentNumber가 있으면 우선 사용, null/empty면 자동 생성
+        equipmentNumber: equipment.equipmentNumber?.isNotEmpty == true 
+            ? equipment.equipmentNumber!  // 사용자 입력값 사용
+            : 'EQ-${DateTime.now().millisecondsSinceEpoch}', // 자동 생성 fallback
         category1: equipment.category,
         category2: equipment.subCategory,
         category3: equipment.subSubCategory,
@@ -140,7 +145,11 @@ class EquipmentService {
         barcode: equipment.barcode,
         purchaseDate: equipment.inDate,
         purchasePrice: equipment.purchasePrice,
-        companyId: equipment.currentCompanyId,
+        // 🔧 [BUG FIX] currentCompanyId → companyId 필드 수정
+        // 문제: Controller에서 selectedCompanyId를 equipment.companyId로 설정하는데
+        //       EquipmentService에서 equipment.currentCompanyId를 참조해서 null 전송
+        // 해결: equipment.companyId 참조로 변경하여 실제 선택값 전송
+        companyId: equipment.companyId,
         warehouseLocationId: equipment.warehouseLocationId,
         lastInspectionDate: equipment.lastInspectionDate,
         nextInspectionDate: equipment.nextInspectionDate,
@@ -196,14 +205,14 @@ class EquipmentService {
         modelName: equipment.name.isNotEmpty ? equipment.name : null, // 실제 장비명
         serialNumber: equipment.serialNumber?.isNotEmpty == true ? equipment.serialNumber : null,
         barcode: equipment.barcode?.isNotEmpty == true ? equipment.barcode : null,
-        purchaseDate: equipment.inDate,
+        purchaseDate: equipment.purchaseDate,
         purchasePrice: equipment.purchasePrice,
         status: (equipment.equipmentStatus != null && 
                  equipment.equipmentStatus != 'null' && 
                  equipment.equipmentStatus!.isNotEmpty)
             ? EquipmentStatusConverter.clientToServer(equipment.equipmentStatus) 
             : null,
-        companyId: equipment.currentCompanyId,
+        companyId: equipment.companyId,
         warehouseLocationId: equipment.warehouseLocationId,
         lastInspectionDate: equipment.lastInspectionDate,
         nextInspectionDate: equipment.nextInspectionDate,
@@ -369,12 +378,7 @@ class EquipmentService {
   }
 
   Equipment _convertResponseToEquipment(EquipmentResponse response) {
-    print('DEBUG [_convertResponseToEquipment] Converting response to Equipment');
-    print('DEBUG [_convertResponseToEquipment] response.manufacturer="${response.manufacturer}"');
-    print('DEBUG [_convertResponseToEquipment] response.modelName="${response.modelName}"');
-    print('DEBUG [_convertResponseToEquipment] response.category1="${response.category1}"');
-    
-    final equipment = Equipment(
+    return Equipment(
       id: response.id,
       manufacturer: response.manufacturer,
       name: response.modelName ?? '', // modelName이 실제 장비명
@@ -386,21 +390,22 @@ class EquipmentService {
       quantity: 1, // Default quantity, actual quantity should be tracked in history
       inDate: response.purchaseDate,
       remark: response.remark,
-      // 백엔드 API 새로운 필드들 매핑
+      // 백엔드 API 새로운 필드들 매핑 - 백엔드 완전 호환
       purchasePrice: response.purchasePrice != null ? double.tryParse(response.purchasePrice!) : null,
       currentCompanyId: response.companyId,
       warehouseLocationId: response.warehouseLocationId,
+      companyId: response.companyId,
       lastInspectionDate: response.lastInspectionDate,
       nextInspectionDate: response.nextInspectionDate,
       equipmentStatus: response.status,
-      // Warranty information would need to be fetched from license API if available
+      // 백엔드 API 완전 호환 필드들
+      equipmentNumber: response.equipmentNumber,
+      modelName: response.modelName,
+      category1: response.category1,
+      category2: response.category2,
+      category3: response.category3,
+      purchaseDate: response.purchaseDate,
     );
-    
-    print('DEBUG [_convertResponseToEquipment] Equipment created');
-    print('DEBUG [_convertResponseToEquipment] equipment.manufacturer="${equipment.manufacturer}"');
-    print('DEBUG [_convertResponseToEquipment] equipment.name="${equipment.name}"');
-    
-    return equipment;
   }
 
   // 장비 상태 상수