fyy99/dsh-livis-connector: Connect Livis in the DSH Settings Page

`fyy99/dsh-livis-connector` is an independent community plugin licensed under the MIT License, designed to integrate Livis into DeepSeek Harness (DSH). The plugin addresses the fragmentation of authorization, binding, connection status, and task idempotency by unifying Livis account authorization, Agent ID binding, and connection management within the DSH settings page. Core features include reliable message callback, support for cancellation and reconnection after disconnection, whitelist-based document upload (restricted to the configured directory), and Refresh Tokens stored only in the DSH Host, with no dependency on OpenClaw at runtime. Environment requirements: Node.js ^22.19.0 or above, and DSH 0.1.0-rc.6. Installation requires `dsh plugin