chore: release client-v1.0.74

入库/出库详情页明细新增生产日期、批次号两列

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YZ4DskSRKsSiheQonFtQvx

client/lib/models/stock_out.dart

@@ -12,6 +12,8 @@ class StockOutItem {
   final String? productSeries;
   final String? productSpec;
   final String? productUnit;
+  final String? batchNo;
+  final String? productionDate;
 
   bool get isReturned => returnedQuantity >= quantity && quantity > 0;
 
@@ -29,6 +31,8 @@ class StockOutItem {
     this.productSeries,
     this.productSpec,
     this.productUnit,
+    this.batchNo,
+    this.productionDate,
   });
 
   factory StockOutItem.fromJson(Map<String, dynamic> json) {
@@ -57,6 +61,8 @@ class StockOutItem {
         productSeries: lineOrProduct('series', 'series'),
         productSpec: lineOrProduct('spec', 'spec'),
         productUnit: (json['product'] as Map<String, dynamic>?)?['unit'] as String?,
+        batchNo: json['batch_no'] as String?,
+        productionDate: json['production_date'] as String?,
       );
   }
 }