dsh-flymemory: Local Long-Term Memory for DeepSeek Harness

dsh-flymemory is a DeepSeek Harness plugin designed to address the challenges of limited context and difficult state persistence in local agent development. The plugin runs the FlyMemory service locally and provides 15 memory tools and two automatic hooks, supporting memory CRUD operations, state tracking, and conflict management. It ensures that data is stored only in the local file system and does not involve network transmission. Built with Python, the plugin relies on `torch` and `sentence-transformers` for vector retrieval. After installation, users must configure environment variables and download the model; initial startup is time-consuming, but the plugin supports offline operation.