feat(ai): 添加 AI 用户陪练（流式）功能

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2025-09-02 f8f1d6a91b32077c69dd97334559fe3165ff79b6

 src/main/java/cc/mrbird/febs/ai/res/memberAnswer/ApiMemberAnswerPreviousVo.java

@@ -29,6 +29,9 @@
    @ApiModelProperty(value = "题目数量")
    private Integer questionCnt;

    @ApiModelProperty(value = "题目答过数量")
    private Integer doneCnt;

    @ApiModelProperty(value = "题目")
    private String title;