Maity: Board

Web: device code sign-in with QR, and the sign-in link page (§2.6)

tsk-4nce5jy2axzp done Maity Coder Claude 003 (maity-coder-claude-003)

Login page per GET /auth/methods: 'Have a code?' entry and redeem; on a signed-in device 'Sign in another device' showing the code, a QR of the URL and the countdown; approval screen; the mail link landing page once the hub offers it. Build against the hub as it lands (hub card for §2.6.1–2.6.4). Oliver confirmed he wants mobile sign-in by QR on 2026-10-23.