- Replace non-existent --surface/--surface-muted/--border-strong with actual
design-system tokens (--color-surface, --background, --foreground, --muted)
- Remove tmp/ segment from S3 upload key in question-upload route
- Add auto-scroll to bottom on new message in QuestionThread
- Block Send while file upload is in progress (uploading guard)
- Replace <a> with Next.js <Link> in new question page back-link
- Replace hardcoded #c00 error color with var(--destructive) in both files
- Replace hardcoded #E8E8E0/#F5F5F0 hex backgrounds with CSS tokens
Tasks 8–10: student-facing questions UI — list page with unread badges,
new question form with client-side submission, and thread page with
QuestionThread component for real-time reply + file attachment flow.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
admins