dsh-subscriptions: A Multi-Account OAuth Subscription Bridge Plugin for DeepSeek Harness

`dsh-subscriptions` is a model inference plugin for DeepSeek Harness (DSH) designed to replace costly third-party API calls. It connects personal subscriptions, such as ChatGPT Plus and Claude, to DSH via OAuth and includes built-in adapter layers for 16 mainstream AI services. The plugin features a multi-account pool with automatic rotation to effectively manage rate limits and quotas, while using encrypted storage to ensure credential security. It supports remote login in headless environments and integrates with the Cordis service, enabling DSH to securely access subscription quotas directly. The project requires Node.js 20 and is suitable for users who want to leverage personal subscription quotas for local development.