dsh-anyrouter: Any Router Integration for DeepSeek Harness

`dsh-anyrouter` is a dedicated Any Router plugin for DeepSeek Harness, designed to resolve protocol incompatibility issues in multi-model routing integration. It dynamically controls model visibility through key gating, supports full parameter configuration and allowlist selection for Claude and GPT/Codex, and is released under the MIT License. It offers an easy installation and provides DSH users with an efficient way to access multiple models through the standard plugin workflow.