API v4 계약 반영하고 보고서·입출고 화면 실연동 강화

lib/features/approvals/data/dtos/approval_dto.dart

@@ -214,7 +214,9 @@ class ApprovalStepDto {
         (json['approver'] as Map<String, dynamic>? ?? const {}),
       ),
       status: ApprovalStatusDto.fromJson(
-        (json['status'] as Map<String, dynamic>? ?? const {}),
+        (json['status'] as Map<String, dynamic>? ??
+            json['step_status'] as Map<String, dynamic>? ??
+            const {}),
       ),
       assignedAt: _parseDate(json['assigned_at']) ?? DateTime.now(),
       decidedAt: _parseDate(json['decided_at']),
@@ -263,7 +265,12 @@ class ApprovalHistoryDto {
     return ApprovalHistoryDto(
       id: json['id'] as int?,
       action: ApprovalActionDto.fromJson(
-        (json['action'] as Map<String, dynamic>? ?? const {}),
+        json['action'] is Map<String, dynamic>
+            ? json['action'] as Map<String, dynamic>
+            : {
+                'id': json['approval_action_id'],
+                'name': json['approval_action_name'],
+              },
       ),
       fromStatus: json['from_status'] is Map<String, dynamic>
           ? ApprovalStatusDto.fromJson(