No production frontend has been ported yet (see docs/refactoring.md) — this
placeholder exists only to give the Static Web App a deployment, which is what makes it
proxy /api/* to func-wfp-stg at all (linked-backend requires a
real SWA deployment before its routing tables build). Use the form below to smoke-test the
ported backend via /api/auth/dev-login.
(response will show here)