golem15.user.device_auth.auth_url gains a {short_code} placeholder and
defaults to {frontend_url}/device/scan/{short_code}; POST
/devices/authorize accepts the short code in its token field, so a scan
page that posts what its URL carries keeps working. The status poll hands
the session token over only to a client with the User-Agent the device
initiated with; another client sees the session confirmed and takes
nothing.
The device hand-over now refuses a session authorized before the user's
tokens_valid_after, and every AccessRevokedEvent revokes the user's
pending and confirmed device sessions inside the write's transaction
(classes.RevokeDeviceSessions).
The revoke now reads the device's jti with UPDATE ... RETURNING under the
row lock, and the refresh's hand-over (classes.FollowDeviceJTI) reports a
session revoked meanwhile, so the refresh answers the blacklisted-token
401 without a token. A hand-over error fails the refresh closed instead
of leaving the session on a stale jti.
GET /devices lists the caller's confirmed and used device sessions (PHP's
fields, device_name from the stored name or the user agent, is_current
for the session the request's token belongs to). DELETE /devices/{id}
marks the session revoked and blacklists the device token's jti for its
whole refresh window in one transaction. POST /refresh hands a used
session's jwt_jti over to the refreshed token (classes.HandOverDeviceJTI),
so a device that refreshed before the revoke is signed out too.
PHP's device flow on golem15_user_device_auth_sessions (PHP's columns,
the token stored as its SHA-256, plus jwt_jti): POST /devices/initiate
answers a 64-character token, an XXXX-XXXX short code, the configurable
auth_url (golem15.user.device_auth.auth_url) and the expiry; a signed-in
user authorizes it with POST /devices/authorize (short_code or token,
one guarded pending-to-confirmed UPDATE); the device's first poll of
GET /devices/status/{token} after that receives a session JWT through one
guarded confirmed-to-used UPDATE, so exactly one poll gets it. Used and
revoked sessions never turn into expired; each initiate deletes a bounded
batch of stale sessions.
