Plugins

Diagnose, unstick, and read DSH sessions: list sessions with agent status, read conversations, diagnose stuck agents, recover them with cancel+keepInbox, and send messages to other sessions.

DSH plugin guard: checks profile bundle lists for duplicate loader entries on every plugin load, preventing the 'duplicate loader entry id' boot crash caused by listing an aggregate bundle and its sub-plugins together — and the `dsh plugin` reconcile recu