fix(ai): 解决会员学习数据转换中的空指针异常

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2026-01-23 d158eb66602278d6f02b767b6639463ec4b671cb

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cc.mrbird.febs.mall.mapper.AppVersionMapper">
 
</mapper>