dsh-bili-saver: Reducing "Helping You Binge Bilibili" to 3 Rounds

Introducing the DSH client plugin `dsh-bili-saver` maintained by xuzhenjie12. It utilizes four read-only tools (Search, Metadata + Subtitle Skeleton, Config, Status) to reduce the number of model rounds for a single Bilibili scraping session from 21 to 3–5 and lower token usage from 1.83 million to 116,000, requiring zero Python and zero visual model dependencies. It organizes installation commands, three credential methods, all parameters and value ranges for `config.json`, and real-device verification usage and results in the README, as well as installation notes including read-only boundaries, the -352 risk control error, and the flat parameter attribute table. Additionally, it provides a directory page and GitHub link.