Introducing the DeepSeek Harness Plugin: dsh-agent-identity

`dsh-agent-identity` is a plugin for DeepSeek Harness (DSH) that automatically injects persona files from the `~/.dsh/DSclaw/` directory into the system prompt. It primarily manages core files such as SOUL.md and IDENTITY.md, with BOOTSTRAP.md being automatically injected when a new session is created and deleted after the first Q&A exchange. The plugin relies on `dsh-agent-registry` to create the directory structure. File editing is performed through the settings menu in the Web Profile, and files remain on disk after uninstallation.