fix(01-01): 修复 C 端实名校验使用常量（CRITICAL-02）

- client_order/service.go: 实名校验 assetInfo.RealNameStatus != 1 改为常量比较
- client_realname.go: 实名状态检查 == 1 改为 constants.RealNameStatusVerified
- go build ./... 编译通过，无遗留硬编码 != 1 / == 1 的实名判断

internal/handler/app/client_realname.go

@@ -125,7 +125,7 @@ func (h *ClientRealnameHandler) GetRealnameLink(c *fiber.Ctx) error {
 	}
 
 	// 6. 检查实名状态
-	if targetCard.RealNameStatus == 1 {
+	if targetCard.RealNameStatus == constants.RealNameStatusVerified {
 		return errors.New(errors.CodeInvalidStatus, "该卡已完成实名")
 	}
 

internal/service/client_order/service.go

@@ -112,7 +112,7 @@ func (s *Service) CreateOrder(ctx context.Context, customerID uint, req *dto.Cli
 		return nil, err
 	}
 
-	if packagesNeedRealname(validationResult.Packages) && assetInfo.RealNameStatus != 1 {
+	if packagesNeedRealname(validationResult.Packages) && assetInfo.RealNameStatus != constants.RealNameStatusVerified {
 		return nil, errors.New(errors.CodeNeedRealname)
 	}