* [client] Bring the connection up in Go after SSO login
The post-login Up ran as a frontend promise continuation after WaitSSOLogin
resolved. During SSO the tray window is hidden and the webview is suspended
(macOS App Nap / hidden-window timer throttling), so that continuation didn't
run until the user woke the window (e.g. hovering the tray icon), leaving the
client not connected for a long time. Combine WaitSSOLogin and Up in a single
Go method so the daemon connects the moment SSO completes, independent of
webview state. The frontend no longer issues a separate Up on the SSO path.
* [client] unexport waitSSOLogin and move below exported methods
76877e83c4