shenandshen
5b9cba793e
- AI口语约束：在对话系统提示词与单轮指导中增加防重复问答约束，避免重复寒暄及索取已提供信息，根据历史自然向前推进 - 课程流转：修复多段课程学完后今日任务卡片流转下一课，及退出重进定位逻辑 - 竖屏锁定：在 Flutter、Android 及 iOS 平台配置仅支持竖屏显示 - 对话交互：优化对话界面文本输入重绘与词汇查询，解决键盘输入卡顿 - 测试用例：补充并更新单轮约束、状态流转与返回键退出测试，212项测试全绿
kouyu_english
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