Dsh Workspace Enhance

Key features

• Wastebin (soft delete / restore / completely delete, session + workspace): session.delete becomes a wastebin, and physical deletion can only be performed from the wastebin (session.purge / workspace.purge).
• Version GuardOverlay matches only @deepseek-ai/dsh@0.1.0-rc.6
• The session starts with a recall/find search, and closes the session by writing conclusions and decisions remember.
• Drag sessions across the workspace: The session line can be dragged to another working area line (or " ungrouped " group) moving to belong, relationships last and the session itself is inactive with a log.