dsh-ride-train: Ride Training Plan Generation

`dsh-ride-train` is a localized cycling training plan generation plugin designed specifically for DeepSeek Harness (DSH). It is fully implemented in Node.js and does not depend on external network requests, aiming to address latency and stability issues in specific scenarios. Before installation, specific version requirements for `@deepseek-ai/cordis` and `@deepseek-ai/dsh-tools` must be met. At runtime, the plugin executes with the permissions of the current process, making it suitable for offline or low-latency environments and providing a lightweight, secure, localized solution.