refactor: 인벤토리 테이블 스펙과 도메인 계층 정비

lib/features/inventory/lookups/data/dtos/lookup_item_dto.dart

@@ -0,0 +1,54 @@
+import '../../../../../core/common/utils/json_utils.dart';
+import '../../domain/entities/lookup_item.dart';
+
+/// 룩업 API 응답을 표현하는 DTO.
+class LookupItemDto {
+  LookupItemDto({
+    required this.id,
+    required this.name,
+    this.code,
+    this.isDefault = false,
+    this.isActive = true,
+    this.note,
+  });
+
+  final int id;
+  final String? code;
+  final String name;
+  final bool isDefault;
+  final bool isActive;
+  final String? note;
+
+  factory LookupItemDto.fromJson(Map<String, dynamic> json) {
+    return LookupItemDto(
+      id: json['id'] as int? ?? 0,
+      code: json['code'] as String? ?? json['status_code'] as String?,
+      name:
+          json['name'] as String? ??
+          json['type_name'] as String? ??
+          json['status_name'] as String? ??
+          json['action_name'] as String? ??
+          '',
+      isDefault: (json['is_default'] as bool?) ?? false,
+      isActive: (json['is_active'] as bool?) ?? true,
+      note: json['note'] as String?,
+    );
+  }
+
+  LookupItem toEntity() => LookupItem(
+    id: id,
+    code: code,
+    name: name,
+    isDefault: isDefault,
+    isActive: isActive,
+    note: note,
+  );
+
+  static List<LookupItem> parseList(Map<String, dynamic>? json) {
+    final rawItems = JsonUtils.extractList(json, keys: const ['items']);
+    return rawItems
+        .map(LookupItemDto.fromJson)
+        .map((dto) => dto.toEntity())
+        .toList(growable: false);
+  }
+}