dsh-omni-bridge: Connect WeChat, QQ, and Feishu messages to DSH Agent

dsh-omni-bridge is a multi-channel bridging plugin for DSH, designed to connect messages from WeChat ClawBot/iLink, QQ, and Feishu to DSH agents and relay responses back. It is deployed as a DSH bundle; after installation, a restart allows you to configure credentials for each channel in the settings page. The plugin supports sending and receiving messages across three channels, utilizing independent sessions (omni-bridge-<channel>) and implementing reply deduplication via watermarking. In terms of security, inbound messages are blocked by default, requiring a whitelist configuration or allowing all users (not recommended for production environments). Configuration is stored locally; WeChat obtains botToken via QR code scanning, while QQ and Feishu require configuring appId and secret and subscribing to relevant events. This tool simplifies IM channel adaptation and is suitable for users wishing to connect existing DSH agents to these platforms.