Fresh installs now redirect to /users/register instead of showing the
demo shop. Post-login redirect goes to /admin dashboard (with setup
checklist) instead of /admin/settings. Added 16 provider tests covering
index (list, delete, sync) and form (new, edit, test connection).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Merge shop status, payments, products (Printify), account (email/password),
and advanced (dashboard/error tracker links) into /admin/settings. Simplify
Auth.Settings to a redirector for /users/settings and confirm-email tokens.
Remove Providers from sidebar nav. Update all redirects and tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
