admins
d2150153df
Add quiz feature: student UI, admin editor, lesson page integration
- QuizSection component: shows questions as text inputs, read-only after submission
- QuizEditor component: admin CRUD for quiz questions with type selector
- saveQuiz/deleteQuiz server actions for admin
- submitQuizAttempt server action: idempotent, auto-marks lesson complete
- Student lesson page: renders QuizSection, updates complete button logic
- Admin lesson page: renders QuizEditor below homework section
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>