refactor(lets): 更新 U8C API URL 并优化代码格式

- 将 OverallConstant 类中的测试 U8C URL 修改为正式 U8C URL
- 在 SoSaleOutPluginInitializerToC 类中添加空行，提高代码可读性

buildpackage/src/main/java/com/hzya/frame/plugin/lets/constant/OverallConstant.java

@@ -77,7 +77,7 @@ public class OverallConstant {
     }
 
     private static void loadDev() {
-        devOverAll.put("u8cApiUrl", "http://39.170.109.90:9099");//测试U8C
+        devOverAll.put("u8cApiUrl", "http://39.170.109.90:9099");//正式U8C
 
         devOverAll.put("u8cApiUsercodePK", "admin");
         devOverAll.put("u8cApiPasswordPK", "83f1ad3e7fa3617f1aae62ae7413c810");