DeepSeek Harness MaxCompute (ODPS) Analytics Plugin

The `dingxin-tech/dsh-maxcompute` plugin enables DeepSeek Harness (DSH) to interact with Alibaba Cloud MaxCompute. By wrapping the `maxc` CLI, it creates a three-layer architecture covering metadata browsing, cost-controlled SQL execution, and background job management. Its core features, including read-only protection, scan-volume threshold limits, and asynchronous task management, ensure secure data operations and cost control. Developers can perform SQL analysis securely in DSH after installing dependencies and configuring authentication.