feat(quota): 新增用户额度总计模块

增加用户免费体验额度配置，支持新用户注册时的额度分配功能

src/main/java/com/yolo/keyborad/mapper/KeyboardUserQuotaTotalMapper.java

@@ -0,0 +1,12 @@
+package com.yolo.keyborad.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.yolo.keyborad.model.entity.KeyboardUserQuotaTotal;
+
+/*
+* @author: ziin
+* @date: 2025/12/16 16:00
+*/
+    
+public interface KeyboardUserQuotaTotalMapper extends BaseMapper<KeyboardUserQuotaTotal> {
+}