Port the cookie-setting login and logout endpoints to Huma. Both reuse the
shared auth cores; the HttpOnly refresh cookie and Cache-Control: no-store
header are set via the unwrapped echo context (the cookie stays out of the
OpenAPI schema, matching v1). The token response inlines the JWT to avoid a
schema-name collision with user.Token.
login is public (LDAP-only deployments log in here too); logout inherits the
global JWT auth and no-ops for tokens that carry no session.
d4ab438073