dsh-channel-telegram: Telegram Thin Bridge Plugin for DeepSeek Harness

`dsh-channel-telegram` is a thin-bridge Telegram plugin maintained by LosEcher, designed to provide DSH Agent with standardized Telegram interaction capabilities. It receives private chat messages via long polling, maps Telegram chats to DSH sessions, and supports commands such as `/start` and `/help`, along with a serial queue for long-running tasks. The plugin is delivered standalone and requires a Bot Token, an allowlist, and merged YAML configuration when enabled. It supports only text messages and full-message replies, without streaming output or media handling, and depends on `@deepseek-ai/cordis`.