dsh-deep-reading: A Deep Reading Plugin for DeepSeek Harness

The DeepSeek Harness plugin `dsh-deep-reading` is designed specifically to address the issue of rapid token consumption when reading long documents. By splitting book chapters, isolating the original text using subagents, and maintaining chapter memory with precise location tracking, it enables an efficient, resumable, and export-ready reading workflow. Core features include automatic chapter splitting for multiple import formats; keeping the original text out of the main session during close reading; automatically resuming ultra-long chapters from the last breakpoint; and supporting paragraph-level memory positioning with hash verification to allow reuse of already-read content. The plugin also supports verbatim export to EPUB and provides utility tools such as status checking and token logging.