dsh-memory-system: A Local Markdown Memory Plugin for DeepSeek Harness

dsh-memory-system is the local memory plugin for DeepSeek Harness, designed to resolve cross-session context loss. It operates without the need for databases or vector services, storing memory data in Markdown format locally (default path `~/.dsh-memory/`) with Obsidian compatibility. Core capabilities include: injecting a hot memory package of no more than 14KB at startup to enable the Agent to quickly resume work with context; providing cold-layer recall based on Chinese Bigram BM25, with output limited to 4.2KB and accompanied by tracking information; defaulting write operations to dry-run mode, requiring user confirmation before committing to disk via mechanisms such as lease locks and SHA-256 checksums to ensure recoverability; and governance functions that perform read-only scans for duplicates, conflicts, and expired data, with upgrades or deletions requiring manual confirmation.