dsh-memory-vault: A Plugin Providing Long-Term Memory Capabilities for DeepSeek Harness

`dsh-memory-vault` is a DSH plugin designed to address memory limitations and forgetting caused by relying solely on the context window. It provides agents with long-term, human-like memory through an external database. The plugin supports memory management, classification statistics, conversation logging, and historical retrieval, and uses a tiered structure (short-term, medium-term, long-term, and permanent) to automatically manage information and prevent context overflow. Users do not need to invoke it manually; simply expressing intent naturally in a conversation is enough to add or query memories. Data is stored in a local database, and memory retention parameters can be adjusted via configuration files, making it a practical tool for building long-term memory agents.