feat(采购订单): 添加合同条目关联及税率绑定功能

新增采购订单条目与合同条目的关联字段，实现税率和税率锁定的UI绑定
优化采购订单同步逻辑，支持从U8系统获取更多字段信息
调整界面文本显示，修复部分字段绑定问题

client/src/main/java/com/ecep/contract/controller/contract/ContractWindowController.java

@@ -151,6 +151,7 @@ public class ContractWindowController
             registerTabSkin(contractTab, t -> new ContractTabSkinSubContract(this));
             tabs.remove(bidVendorTab);
             Tab saleOrderTab = new Tab("销售订单");
+            payPlanTab.setText("收款计划");
             tabs.add(saleOrderTab);
             registerTabSkin(saleOrderTab, tab -> new ContractTabSkinSaleOrders(this, tab));
             tabs.add(new Tab("票据"));
@@ -166,6 +167,7 @@ public class ContractWindowController
             tabs.add(new Tab("发货单"));
             tabs.add(new Tab("签收单"));
             tabs.add(new Tab("付款单"));
+            payPlanTab.setText("付款计划");
         }
 
         registerTabSkin(itemTab, tab -> new ContractTabSkinItemsV2(this));

client/src/main/java/com/ecep/contract/controller/tab/ContractTabSkinItemsV2.java

@@ -5,6 +5,7 @@ import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.util.HashMap;
 
+import com.ecep.contract.ContractPayWay;
 import com.ecep.contract.SpringApp;
 import com.ecep.contract.controller.contract.AbstContractTableTabSkin;
 import com.ecep.contract.controller.contract.ContractWindowController;
@@ -132,7 +133,11 @@ public class ContractTabSkinItemsV2
         taxPriceColumn.setCellFactory(TextFieldTableCell.forTableColumn(currencyStringConverter));
 
         quantityColumn.setCellValueFactory(param -> param.getValue().getQuantity());
-        quantityColumn.setCellFactory(QuantityTableCell.forTableColumn(new NumberStringConverter(getLocale())));
+        if (getEntity().getPayWay() == ContractPayWay.PAY) {
+            quantityColumn.setCellFactory(QuantityTableCell.forTableColumn(new NumberStringConverter(getLocale())));
+        } else {
+            quantityColumn.setCellFactory(TextFieldTableCell.forTableColumn(new NumberStringConverter(getLocale())));
+        }
 
         taxAmountColumn.setCellValueFactory(param -> param.getValue().getTaxAmount());
         taxAmountColumn.setCellFactory(TextFieldTableCell.forTableColumn(currencyStringConverter));

client/src/main/java/com/ecep/contract/controller/vendor/purchase/order/PurchaseOrderTabSkinBase.java

@@ -47,8 +47,12 @@ public class PurchaseOrderTabSkinBase
         initializeEmployeeField(controller.verifierField, viewModel.getVerifier());
         initializeEmployeeField(controller.closerField, viewModel.getCloser());
 
-        viewModel.getTaxRate();
-        viewModel.getTaxRateLocked();
+        // 税率和税率锁定绑定
+        controller.taxRateField.textProperty().bindBidirectional(viewModel.getTaxRate(),
+                new javafx.util.converter.NumberStringConverter(getLocale(), "#.##"));
+        controller.taxRateLockedField.selectedProperty().bindBidirectional(viewModel.getTaxRateLocked());
+
+        viewModel.getVendorCode().bindBidirectional(controller.vendorCodeField.textProperty());
 
         controller.makeDateField.textProperty().bind(viewModel.getMakerDate().map(MyDateTimeUtils::format));
         controller.verifierDateField.textProperty().bind(viewModel.getVerifierDate().map(MyDateTimeUtils::format));

client/src/main/java/com/ecep/contract/controller/vendor/purchase/order/PurchaseOrderWindowController.java

@@ -14,6 +14,7 @@ import com.ecep.contract.vm.PurchaseOrderViewModel;
 import com.ecep.contract.vo.PurchaseOrderVo;
 
 import javafx.scene.control.Button;
+import javafx.scene.control.CheckBox;
 import javafx.scene.control.Label;
 import javafx.scene.control.Tab;
 import javafx.scene.control.TabPane;
@@ -49,6 +50,9 @@ public class PurchaseOrderWindowController
     public TextField closerDateField;
     public TextField closerField;
     public Label versionLabel;
+    public TextField taxRateField;
+    public CheckBox taxRateLockedField;
+    public TextField vendorCodeField;
 
     @Autowired
     private PurchaseOrdersService service;

client/src/main/java/com/ecep/contract/vm/PurchaseOrderItemViewModel.java

@@ -23,6 +23,11 @@ public class PurchaseOrderItemViewModel extends IdentityViewModel<PurchaseOrderI
      * 关联的库存, Inventory
      */
     private SimpleObjectProperty<Integer> inventory = new SimpleObjectProperty<>();
+    /**
+     * 关联的采购合同条目, ContractItem
+     */
+    private SimpleObjectProperty<Integer> contractItem = new SimpleObjectProperty<>();
+
     private SimpleIntegerProperty refId = new SimpleIntegerProperty();
     private SimpleDoubleProperty quantity = new SimpleDoubleProperty();
     private SimpleDoubleProperty price = new SimpleDoubleProperty();
@@ -36,6 +41,7 @@ public class PurchaseOrderItemViewModel extends IdentityViewModel<PurchaseOrderI
         super.updateFrom(v);
         getOrder().set(v.getOrder());
         getInventory().set(v.getInventoryId());
+        getContractItem().set(v.getContractItemId());
         getRefId().set(v.getRefId());
         getQuantity().set(v.getQuantity());
         getPrice().set(v.getPrice());
@@ -57,6 +63,10 @@ public class PurchaseOrderItemViewModel extends IdentityViewModel<PurchaseOrderI
             v.setInventoryId(inventory.get());
             modified = true;
         }
+        if (!Objects.equals(contractItem.get(), v.getContractItemId())) {
+            v.setContractItemId(contractItem.get());
+            modified = true;
+        }
         if (!Objects.equals(refId.get(), v.getRefId())) {
             v.setRefId(refId.get());
             modified = true;