DeepSeek Harness Plugin: dsh-flowtext

`dsh-flowtext` is a plugin for DeepSeek Harness that combines DSH task scheduling with FlowText's local execution environment. It creates a bridge between DSH and the FlowText Agent Gateway by registering the `flowtext-direct` route, enabling secure credential pairing, automatic Vault discovery, and task distribution. The plugin supports configuring parameters such as progress mode and request timeout, and provides strict security isolation. Installation requires meeting specific environment prerequisites, and upgrading from an older version requires uninstalling it first. The current version does not support images or structured output, and is intended for local use only.