DSH Sidebar Files

Key features

• Sessions / Files tab strip injected below the New Session button (wide sidebar).
• cordis.patch.yml inserts one host row (id: sidebar-files) that mounts the node half.
• The tree renders inline in the sidebar region — same presentation as the harness's own browsing surfaces.
• Lazy listingone directory level is fetched on demand (the workspace root on open, a directory on first expand), through the plugin's own GET /dsh-sidebar-files/list?path=… route.
• Wire cost follows what you actually open.