The sessions unit's live smoke test caught the same bug it fixed in
SessionsController also present in TrustedDeviceService and
TwoFactorController's device list: SQLite/Pomelo's EF Core provider
cannot translate DateTimeOffset relational comparisons or ORDER BY to
SQL, so IsDeviceTrustedAsync (the check that skips 2FA for a trusted
browser) and ListTrustedDevices would 500 on real SQLite despite
passing on EF's InMemory test provider. Same fix: equality-only in
the DB query, expiry comparison and sort after materializing.
JWTs were previously fully stateless -- the token alone was the credential
until its own expiry, with no way to list or kill a session server-side. Add
a UserSession table alongside every JWT issued (AppSessionIssuer), embed its
id as a "sid" claim, and check that claim against the DB on every "local"
scheme request (Program.cs OnTokenValidated) so a session can actually be
revoked before its JWT naturally expires. New /api/auth/sessions endpoints
(list, revoke one, revoke-others) plus a Sessions card on the profile page.
Fails closed on a missing "sid" claim: every JWT issued going forward has
one, so a token without it is either pre-deploy (forces one re-login for
already-signed-in users at deploy time, same additive-forward cost the
2FA/trusted-device work on this branch already paid) or forged.
Adds a "trust this device" option to the 2FA challenge: on success, mints a
random token (only its SHA-256 hash is stored), sets it as a new httpOnly,
Secure, SameSite=Strict cookie, and records a TrustedDevice row. AuthController
checks that cookie for the exact signing-in user before gating on 2FA -- a
mismatched user, expired, or revoked device falls through to the normal 2FA
prompt, never errors. TwoFactorController also exposes list/revoke/revoke-all
endpoints for managing trusted devices, scoped to the owning user.
Schema added via the existing raw-SQL reconciler (SQLite + MySQL dialects),
not EF migrations, matching this repo's established pattern.
cesnimda