功能：

数据结构：

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GetStageChapterReq: {
    
}
GetStageChapterRsp: {
    Retcode retcode,
    List<StageChapterInfo> ChapterLists,
}
StageChapterInfo: {
    uint ChapterId,
    ulong HasTakeChallenge,
    uint EnterPlayerLevel,
    List<StageChapterBoss> BossLists,
    List<StageChapterExclusive> ExclusiveStageLists
}
StageChapterBoss: {
    uint BossStageId,
    uint LeftHp,
}
StageChapterExclusive: {
    uint GroupId,
    uint StageId,
}