Design the privacy user experience and back-end procedures for StudyBuddy:
- Onboarding: the screens a new student sees about privacy (text and choices), respecting privacy by default. Which choices are opt-in?
- Consent for Buddy: the just-in-time consent before the first Buddy question, including what happens if the student refuses.
- Rights in Settings → Privacy: list the functions (access/download, correction, deletion, consent withdrawal) and what each does.
- Deletion procedure: step-by-step what the back end must do when a student deletes their account — which stores, what is kept and why, and how long it takes.
- One dark pattern to avoid in each of steps 1–3, and why it would be wrong.