Token introspection endpoint (available to callers that need it).
POST { username, password } -> { access_token, user }.
Called on logout; failures are ignored (token is cleared locally).
Returns the current AuthUser for a valid bearer token.
POST { username, password } to create an account.
Base URL of the auth server, for example "https://api.example.com".
Endpoint configuration consumed by
AuthProvider.Every
*Pathvalue is resolved relative toserverUrl.