Failed OIDC, magic-link, and SAML sign-ins sent users to /auth/error without the post-login destination, so Sign in dropped OAuth flows and deep links. Propagate a validated continue query through auth error redirects, recover it from OIDC state when the IdP denies or cancels login, and forward it from AuthErrorPage to /auth/login. Signed-off-by: Cursor Agent <cursoragent@cursor.com> Co-authored-by: Bryan FRIMIN <bryan@frimin.fr>