DeepSeek Harness Plugin: dsh-knowledge-sqlite

`dsh-knowledge-sqlite` is a DeepSeek Harness plugin maintained by NinjaSln-labs, designed to address the issue of default full-text search failing to match Chinese substrings. It leverages SQLite FTS5 trigram indexes to enable Chinese subword search and integrates L1 query expansion, TTL-based expiration, tombstone-based deduplication, and event emission. The plugin supports knowledge write, update, list, delete, and probe operations, and by default implements workspace isolation and Ask-gated permission control based on `session.header.cwd`, making it suitable for agent development that requires long-term memory and precise Chinese retrieval.