dsh-mindmap: Transform Markdown Files into a Real-Time Mind Map

The dsh-mindmap plugin deeply integrates Markdown files with mind maps, supporting “file as map” and “chat as editing.” It uses mindmap_* tools to guide the AI in making step-by-step changes to the file, with real-time rendering in the right-side panel. Core features include synchronization between the file and the root node, MarkGrove-style node mapping, canvas interactions (zoom, search, and collapse), draft protection, and safe export as PNG or Markdown. It runs in the DSH environment and uses an optional sidebar, making it suitable for converting outlines into visual mind maps and for AI-assisted refinement of structure. It is currently in the pre-1.0 stage.