fix：pid问题

server-service/src/main/java/com/makeit/service/saas/impl/SaasPidManageServiceImpl.java

@@ -47,7 +47,7 @@ public class SaasPidManageServiceImpl extends ServiceImpl<SaasPidManageMapper, S
     @Override
     public void add(SaasPidManage dto) {
         dto.setStatus("1");
-        dto.setUsedCredit(dto.getAvailableCredit() - dto.getUsedCredit());
+        dto.setUsedCredit(dto.getTotalCredit() - dto.getAvailableCredit());
         save(dto);
     }