A Cloud entry added in Settings -> Gateways inherited the editor's 'token'
default, but cloud entries never keep a pasted token, so the saved entry had
no credential and Test always failed with 'no saved session token'.
Cloud is now always oauth: the editor saves oauth for cloud and shows the
gateway sign-in row, the main-process save path enforces it, and a stored
cloud entry on token auth with no token reads back as oauth.
9a2507e0a7