fix(#655): 请修复 Bug #655：[门诊医生站-检查开单] 检查申请保存后总金额结算异常，未累加“检查方法”附加金额

根因：
- when saving exam applications, only `itemFee` (项目单价) is used for charge items and total amount. The exam method's `packagePrice` (from `CheckMethod → CheckPackage`) is never accumulated.
- Test ---
- Now I have a clear picture of the code. Let me analyze the data flow:
- Verify ---
- 类和接口都存在。让我检查实体字段是否匹配代码中的调用。

修复：
- 修改相关代码文件

healthlink-his-server/healthlink-his-application/src/main/java/com/healthlink/his/web/check/controller/ExamApplyController.java

@@ -12,6 +12,10 @@ import com.healthlink.his.administration.domain.Account;
 import com.healthlink.his.administration.domain.ChargeItem;
 import com.healthlink.his.administration.service.IAccountService;
 import com.healthlink.his.administration.service.IChargeItemService;
+import com.healthlink.his.check.domain.CheckMethod;
+import com.healthlink.his.check.domain.CheckPackage;
+import com.healthlink.his.check.service.ICheckMethodService;
+import com.healthlink.his.check.service.ICheckPackageService;
 import com.healthlink.his.check.domain.ExamApply;
 import com.healthlink.his.check.domain.ExamApplyItem;
 import com.healthlink.his.check.service.IExamApplyItemService;
@@ -71,6 +75,12 @@ public class ExamApplyController extends BaseController {
     @Autowired
     private IOrganizationService organizationService;
 
+    @Autowired
+    private ICheckMethodService checkMethodService;
+
+    @Autowired
+    private ICheckPackageService checkPackageService;
+
     /**
      * 查询检查申请单列表
      */
@@ -112,9 +122,9 @@ public class ExamApplyController extends BaseController {
             BigDecimal totalAmount = BigDecimal.ZERO;
             
             for (ExamApplyItem item : items) {
-                if (item.getItemFee() != null) {
-                    totalAmount = totalAmount.add(item.getItemFee());
-                }
+                BigDecimal itemTotal = item.getItemFee() != null ? item.getItemFee() : BigDecimal.ZERO;
+                BigDecimal methodFee = getMethodAdditionalFee(item.getExamMethodCode());
+                totalAmount = totalAmount.add(itemTotal.add(methodFee));
             }
             
             apply.setTotalAmount(totalAmount);
@@ -307,10 +317,12 @@ public class ExamApplyController extends BaseController {
                 chargeItem.setProductId(0L); // 产品ID
 
                 // 金额：单价和总价取检查项目费用
-                BigDecimal fee = itemDto.getItemFee() != null ? itemDto.getItemFee() : BigDecimal.ZERO;
+                BigDecimal baseFee = itemDto.getItemFee() != null ? itemDto.getItemFee() : BigDecimal.ZERO;
+                BigDecimal methodFee = getMethodAdditionalFee(itemDto.getExamMethodCode());
+                BigDecimal fee = baseFee.add(methodFee);
                 chargeItem.setQuantityValue(BigDecimal.ONE); // 数量
                 chargeItem.setQuantityUnit("次"); // 单位
-                chargeItem.setUnitPrice(fee); // 单价
+                chargeItem.setUnitPrice(fee); // 单价 = 项目费 + 检查方法附加金额
                 chargeItem.setTotalPrice(fee); // 总价 = 单价 × 1
 
                 // 租户和审计字段
@@ -493,7 +505,9 @@ public class ExamApplyController extends BaseController {
                 chargeItem.setProductTable(CommonConstants.TableName.WOR_ACTIVITY_DEFINITION);
                 chargeItem.setProductId(0L);
 
-                BigDecimal fee = itemDto.getItemFee() != null ? itemDto.getItemFee() : BigDecimal.ZERO;
+                BigDecimal baseFee = itemDto.getItemFee() != null ? itemDto.getItemFee() : BigDecimal.ZERO;
+                BigDecimal methodFee = getMethodAdditionalFee(itemDto.getExamMethodCode());
+                BigDecimal fee = baseFee.add(methodFee);
                 chargeItem.setQuantityValue(BigDecimal.ONE);
                 chargeItem.setQuantityUnit("次");
                 chargeItem.setUnitPrice(fee);
@@ -551,4 +565,36 @@ public class ExamApplyController extends BaseController {
 
         return AjaxResult.success("删除/作废成功");
     }
+
+    /**
+     * Bug #655: 根据检查方法代码查询附加金额（套餐价格）
+     * 查找链路：examMethodCode → CheckMethod → packageName → CheckPackage → packagePrice
+     */
+    private BigDecimal getMethodAdditionalFee(String examMethodCode) {
+        if (examMethodCode == null || examMethodCode.isEmpty()) {
+            return BigDecimal.ZERO;
+        }
+        // 1. 根据 code 查找 CheckMethod
+        CheckMethod method = checkMethodService.getOne(
+            new LambdaQueryWrapper<CheckMethod>()
+                .eq(CheckMethod::getCode, examMethodCode)
+                .last("LIMIT 1"));
+        if (method == null || method.getPackageName() == null || method.getPackageName().isEmpty()) {
+            return BigDecimal.ZERO;
+        }
+        // 2. 根据 packageName 查找 CheckPackage（未停用的）
+        CheckPackage pkg = checkPackageService.getOne(
+            new LambdaQueryWrapper<CheckPackage>()
+                .eq(CheckPackage::getPackageName, method.getPackageName())
+                .eq(CheckPackage::getIsDisabled, 0)
+                .last("LIMIT 1"));
+        if (pkg == null || pkg.getPackagePrice() == null || pkg.getPackagePrice().compareTo(BigDecimal.ZERO) <= 0) {
+            return BigDecimal.ZERO;
+        }
+        // 3. 仅当套餐价格启用时才累加
+        if (pkg.getPackagePriceEnabled() != null && pkg.getPackagePriceEnabled() == 1) {
+            return pkg.getPackagePrice();
+        }
+        return BigDecimal.ZERO;
+    }
 }