Local document knowledge base for DeepSeek Harness: library_add/remove/list, hybrid semantic+keyword library_search with diversity re-ranking, relevance filtering and lost-in-the-middle avoidance, citation-aware injection, library_cite_check and library_d

Enables an AI assistant to convert PDF and EPUB chess books into faithful PGN by reading pages and diagrams, validating moves with python-chess, preserving variations and commentary, and reporting verifiable issues.

Issue board for teams: find, create and move issues, run sprints, comment and keep project docs.