Login Set-Cookie was dropped by Next rewrites, so non-admin sessions
never stuck and every later API looked unauthenticated. Proxy JSON
APIs in proxy.ts, copy Set-Cookie, send 401 to login and 403 to /403.
Navigating from login reused a send_email_code token on register.
Captcha failure used 401 so the client stored /register as the
post-login target and never left the page. Permission denials now
return 403, and the API client no longer wipes the session on 401.
Resolve login-page 401 hangs and redirect races by relying on the shared user state. Keep protected-route redirects intact, clean pending requests without unhandled rejections, and allow the dynamic icon route through the page proxy.
ryan