[Feature]: 生成课程内容的语言与教师以及classmate的语言可以分开设置并生成

[lemonhall]

Problem or Motivation

课程内容可以指定使用中文或任何语言

教师的讲解/tts语音，以及classmate的语言，可以设置为英文/或其它支持的语音

课件内容与教师讲解的文字/tts语音，可以分别设置为两种语言，这样可以做到跨语言教学

Proposed Solution

将课件PPT的生成，与教师讲解语言分离

Alternatives Considered

No response

Area

Classroom generation

Additional Context

No response

[YizukiAme]

Hi @lemonhall — this is a great use case! You might want to check out #333, where a maintainer has proposed an RFC to rethink the language system from a single language enum to a multi-dimensional languageDirective inferred by the LLM.

Your scenario (slide content in one language, teacher narration/TTS in another) maps directly to the "teaching language" vs "source material language" dimensions described there. Worth adding your cross-language teaching use case to that discussion — it would help validate the design direction.