fixed arrow direction, revised ai prompts, real quiz names + rename feature, graph sync button

info pop-up bounds fix, even tag-split question generation, dashboard layout rework

add static UI + schema info

Dashboard for all teachers (own-data scoped) + fix report IDOR (#3)

Admin: quiz-detail view (raw files + structured Q&A) + student raw answers (#2)

Add database management: Supabase persistence, teacher profiles, admin dashboard (#1)