下载 Bilibili 视频字幕，将其进行分块以供 LLM（大语言模型）处理，并生成高质量的总结。当用户提供 Bilibili BV 号或 URL，并希望获取视频内容的总结、核心要点或详细的分解时使用。
Initial release of the bilibili-subtitle-downloader skill. - Supports downloading and chunking Bilibili video subtitles using Python scripts. - Handles both regular videos (BV ID) and Bilibili courses/episodes (SS/EP ID). - Provides QR code-based login for authentication when required. - Outputs chunked subtitle files for easy processing and summarization. - Includes recommended prompt template for generating accurate and structured summaries from subtitle chunks.