Same contract as iOS: the relay's roster for this account, oldest
first, the current install marked and not removable from itself (that
is Sign out), removal behind an in-place "Really remove" confirmation
per this screen's house style. RelayClient grows revokeDevice
(DELETE /e2e/devices/{id}); Session surfaces ownDevices()/revokeDevice
and parses the directory's new created_at.
The relay caps accounts at three devices, so this card is the only way
off the cap when registration refuses a fourth.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
