refactor: 회사 폼 UI 개선 및 코드 정리

- 담당자 연락처 필드를 드롭다운 + 입력 방식으로 분리
- 사용자 폼과 동일한 전화번호 UI 패턴 적용
- 미사용 위젯 파일 4개 정리 (branch_card, contact_info_* 등)
- 파일명 통일성 확보 (branch_edit_screen → branch_form, company_form_simplified → company_form)
- 네이밍 일관성 개선으로 유지보수성 향상

lib/services/warehouse_service.dart

@@ -6,7 +6,6 @@ import 'package:superport/core/errors/failures.dart';
 import 'package:superport/data/datasources/remote/warehouse_remote_datasource.dart';
 import 'package:superport/data/models/common/paginated_response.dart';
 import 'package:superport/data/models/warehouse/warehouse_dto.dart';
-import 'package:superport/models/address_model.dart';
 import 'package:superport/models/warehouse_location_model.dart';
 
 @lazySingleton
@@ -66,10 +65,10 @@ class WarehouseService {
     try {
       final request = CreateWarehouseLocationRequest(
         name: location.name,
-        address: location.address.detailAddress,
-        city: location.address.region,
-        postalCode: location.address.zipCode,
-        country: 'KR', // 기본값
+        address: location.address, // 단일 문자열 주소
+        managerName: location.managerName,
+        managerPhone: location.managerPhone,
+        capacity: location.capacity,
         remark: location.remark,
       );
 
@@ -87,10 +86,10 @@ class WarehouseService {
     try {
       final request = UpdateWarehouseLocationRequest(
         name: location.name,
-        address: location.address.detailAddress,
-        city: location.address.region,
-        postalCode: location.address.zipCode,
-        country: 'KR', // country 필드 추가
+        address: location.address, // 단일 문자열 주소
+        managerName: location.managerName,
+        managerPhone: location.managerPhone,
+        capacity: location.capacity,
         remark: location.remark,
       );
 
@@ -167,32 +166,18 @@ class WarehouseService {
     }
   }
 
-  // DTO를 Flutter 모델로 변환
+  // DTO를 Flutter 모델로 변환 (백엔드 API 호환)
   WarehouseLocation _convertDtoToWarehouseLocation(WarehouseLocationDto dto) {
-    // API에 주소 정보가 없으므로 기본값 사용
-    final address = Address(
-      zipCode: dto.postalCode ?? '',
-      region: dto.city ?? '',
-      detailAddress: dto.address ?? '주소 정보 없음',
-    );
-    
-    // 담당자 정보 조합
-    final remarkParts = <String>[];
-    if (dto.code != null) {
-      remarkParts.add('코드: ${dto.code}');
-    }
-    if (dto.managerName != null) {
-      remarkParts.add('담당자: ${dto.managerName}');
-    }
-    if (dto.managerPhone != null) {
-      remarkParts.add('연락처: ${dto.managerPhone}');
-    }
-
     return WarehouseLocation(
       id: dto.id,
       name: dto.name,
-      address: address,
-      remark: remarkParts.isNotEmpty ? remarkParts.join(', ') : null,
+      address: dto.address, // 단일 문자열 주소
+      managerName: dto.managerName,
+      managerPhone: dto.managerPhone,
+      capacity: dto.capacity,
+      remark: dto.remark,
+      isActive: dto.isActive,
+      createdAt: dto.createdAt,
     );
   }