API v4 계약 반영하고 보고서·입출고 화면 실연동 강화

lib/features/inventory/transactions/domain/entities/stock_transaction_input.dart

@@ -11,6 +11,7 @@ class StockTransactionCreateInput {
     this.expectedReturnDate,
     this.lines = const [],
     this.customers = const [],
+    this.approval,
   });
 
   final String? transactionNo;
@@ -23,6 +24,7 @@ class StockTransactionCreateInput {
   final DateTime? expectedReturnDate;
   final List<TransactionLineCreateInput> lines;
   final List<TransactionCustomerCreateInput> customers;
+  final StockTransactionApprovalInput? approval;
 
   Map<String, dynamic> toPayload() {
     return {
@@ -42,6 +44,7 @@ class StockTransactionCreateInput {
         'customers': customers
             .map((customer) => customer.toJson())
             .toList(growable: false),
+      if (approval != null) 'approval': approval!.toJson(),
     };
   }
 }
@@ -200,3 +203,27 @@ class StockTransactionListFilter {
     };
   }
 }
+
+/// 재고 트랜잭션 생성 시 결재(Approval) 정보를 담는 입력 모델.
+class StockTransactionApprovalInput {
+  StockTransactionApprovalInput({
+    required this.approvalNo,
+    required this.requestedById,
+    this.approvalStatusId,
+    this.note,
+  });
+
+  final String approvalNo;
+  final int requestedById;
+  final int? approvalStatusId;
+  final String? note;
+
+  Map<String, dynamic> toJson() {
+    return {
+      'approval_no': approvalNo,
+      if (approvalStatusId != null) 'approval_status_id': approvalStatusId,
+      'requested_by_id': requestedById,
+      if (note != null && note!.trim().isNotEmpty) 'note': note,
+    };
+  }
+}