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>
Consolidates admin_live/, theme_live/, provider_live/ into admin/
(with theme/ and providers/ subdirs). Renames shop_live/ to shop/
and user_live/ to auth/. Updates all module names, router refs,
test files, CSS source paths, and dialyzer ignore.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
