Add passwordless magic-link sign-up and sign-in#38
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Let users sign up and sign in with email only (no password) via a 30-minute magic link, alongside the existing password flow. Passwordless accounts can add a password later from a new account settings page. - Make password_digest nullable; User uses has_secure_password validations: false with its own length/confirmation validations and a :magic_link token tied to password_salt (auto-invalidates on password change) - MagicLinksController + MagicLinkMailer for requesting/consuming sign-in links, with honeypot, rate limiting, org-membership gating, and non-disclosure parity - Users::PasswordsController settings page to add/change a password - Dev-only "Mailer previews" nav link Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Adds passwordless authentication: users can sign up and sign in with email only, receiving a 30-minute magic link instead of using a password, alongside the existing password flow.
password_digestis now nullable andUsercarries a:magic_linktoken tied topassword_saltso the link auto-invalidates once a password is set or changed. A newMagicLinksController/MagicLinkMailerhandle requesting and consuming sign-in links with honeypot, rate limiting, org-membership gating, and account-existence non-disclosure matching the existing auth controllers. Passwordless users can later add a password from a new account settings page (Users::PasswordsController), and a dev-only "Mailer previews" nav link was added. Full test coverage for the new controllers, mailer, and model behavior is included (103 tests passing, Rubocop and Brakeman clean).🤖 Generated with Claude Code