feat: SSH terminal - the agent connects by SSH to another host (password, key file or its own keys) and the shell opens in a tab with the connection's progress shown; host keys trusted on first use, a changed one refused

internal/server/hub.go

@@ -100,6 +100,13 @@ func (h *Hub) CreateSession(agentID, user string) *Session {
 	return s
 }
 
+// CreateSSH registers a terminal session the agent opens by SSH to t.
+func (h *Hub) CreateSSH(agentID string, t proto.SSHTarget) *Session {
+	s := h.newSession(agentID)
+	h.enqueueJob(agentID, proto.ControlMessage{Type: proto.CtrlOpenSSH, SessionID: s.ID, SSH: &t})
+	return s
+}
+
 // CreateForward registers a port-forward stream (agent dials 127.0.0.1:port).
 func (h *Hub) CreateForward(agentID string, port int) *Session {
 	s := h.newSession(agentID)