dsh-subagent-codex-plus: A Direct Codex Connection and Persistent Conversation Plugin for DSH

`dsh-subagent-codex-plus` is a plugin for DeepSeek Harness that provides a direct Codex connection solution based on a "true gateway." It allows DSH to act solely as a pass-through layer, binding a persistent Codex thread via the `/codex-lock` command to enable long-term contextual conversations. The plugin supports automatic queuing, real-time display of intermediate reasoning output, and image pass-through, and can coexist with one-time delegation mode, making it suitable for developers who need fine-grained control over the conversational flow.