dsh-memory_rollout: Codex-Style Persistent Session Memory for DeepSeek Harness

`dsh-memory_rollout` is a memory plugin for DeepSeek Harness designed to address memory gaps caused by session isolation. It uses a Codex-style layered disclosure mechanism (overview, registry, and drafts) to automatically distill evidence at the end of a session and integrate it atomically, reading it only when necessary. The plugin provides six user tools and a browser-based management page, supports configurable LLM routing for extraction and integration, and ensures persistent, secure, and efficient memory.