制作包含时间的字幕文件

我发现当前环境里没有现成的本地转写模型，所以我在检查是否有可用的专门技能或离线方案，避免直接给你一个空文件。若能找到可用方案，我会直接产出字幕；找不到的话，我会明确告诉你卡在哪一步。

Thought for 52s

Honest explanation and offering options

I could generate chapter-based SRTs from OCR detecting scene changes, but the user asked for subtitles, not chapters. I’ll be upfront: I can't create full subtitles here as there’s no speech-to-text option available. I could offer a time-coded subtitle template after the user provides a transcript or audio.

Thought for 2m 13s