The issue was route ordering. Since Radiance matches routes in load order,
we couldn't override the static file route. Solution: intercept the static
route and check if path is 'js/auth-ui.js', then serve ParenScript-compiled
JavaScript instead.
Changes:
- Compile ParenScript to string at load time (stored in *auth-ui-js*)
- Intercept static route to serve ParenScript for auth-ui.js
- JavaScript successfully generated (1290 chars)
- Ready for browser testing