f3aa7c71

Return redirect path from LoginTokenCreator instead of login token entry

LoginTokenCreator now returns a RedirectPath that explicitly tells the
handler where to send the user after login submission. Dev creator
redirects to /login/confirm?token=..., prod creator redirects to
/login/check-email. The POST handler always redirects (POST-Redirect-GET).

Add GET /login/check-email route for the "check your email" page.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Agent Instructions

Each run corresponds to one flake attribute. Click a run for its logs and status.

Example: https://nix-ci.com/cb:mtlynch:little-moments/redirect-dev/f3aa7c71bc84793686f65d5f5726c5dd63df3882/c1a8bf28-e9ef-45f7-847d-85c1ee233495

Wait for suite to complete:

curl --netrc -N https://nix-ci.com/cb:mtlynch:little-moments/redirect-dev/f3aa7c71bc84793686f65d5f5726c5dd63df3882/wait

This page is also available in machine-friendly formats. Request one with the Accept header:

• curl --netrc -H 'Accept: application/json' https://nix-ci.com/cb:mtlynch:little-moments/redirect-dev/f3aa7c71bc84793686f65d5f5726c5dd63df3882
• curl --netrc -H 'Accept: text/markdown' https://nix-ci.com/cb:mtlynch:little-moments/redirect-dev/f3aa7c71bc84793686f65d5f5726c5dd63df3882

For more instructions, fetch https://nix-ci.com/instructions .