DeepSeek Harness OpenList File Sync Plugin

`dsh-openlist-sync` is a file synchronization plugin for DeepSeek Harness (DSH), designed to solve the problem of scattered and hard-to-manage files delivered by Agents. It is implemented using Node ESM, has zero dependencies, and is compatible with the Alist family and OpenList v3/v4. **Core features**: 1. **Automatic synchronization**: Monitors tool execution results and automatically uploads files delivered in chat and tool artifacts to specified directories. 2. **Full read/write access**: Provides a complete file operation toolset, including reading, writing, adding, deleting, modifying, and viewing metadata. 3. **Web configuration**: Supports configuring addresses, authentication, and directory rules via a web panel, without manually editing YAML. **Notes**: The plugin includes a directory isolation mechanism to prevent unauthorized access; by default.