DSH Conversation Recycle Bin: Direct Deletion and Archive Management in the Sidebar

`dsh-session-dustbin` is a session management plugin designed for DeepSeek Harness (DSH). It simplifies the cumbersome original session deletion and archiving process by adding a direct “Delete Session” option in the sidebar menu and providing a dedicated “Session Dustbin” to manage archived sessions, resulting in an intuitive cleanup workflow. The plugin is lightweight, maintaining only header-frame information without reading content to ensure performance. Users can install it with a one-click script, but note that deletion is irreversible and may involve permission risks.