US6: Integrate minimal webapp login UI against user-service auth flows #32
Description
User Story
As an end user, I can authenticate from the webapp using email/password or OTP code or social providers through a minimal but complete UI flow. (A user page will be added on a future US where the user will be able to track his progress)
Scope
- Add login/register/confirm-email/auth-callback UI paths.
- Wire webapp auth calls to user-service API-path routing strategy.
- Handle auth errors and post-login session state updates in UI.
- Keep UI scope minimal (no large design overhaul).
Acceptance Criteria
- User can complete register/login/logout from webapp UI.
- Social login entry points and callback completion are functional.
- Authenticated and unauthenticated states are reflected correctly in navigation/guards.
Unit Tests
- Component/service tests for login/register/callback handlers.
- Error-state rendering tests for failed auth attempts.
- Session state update tests after successful login/logout.
Local Validation
- Local run includes webapp + user-service with working auth endpoints.
- Manual smoke checklist for email and social flows is documented.