Two-phase extraction:
- Detects end-of-document answer key format by scanning last 40 pages for
"Preferred Response:" (PREP 2013, 2014 etc use this vs PREP 2012 inline "Correct Answer:")
- Phase 1: Extract questions with item_number field, allow null correct_answer
- Phase 2: Extract answer key (item_number → letter) from last 40% of document
- Phase 3: Match questions to answers by item number, resolve letter → full option text
- Unmatched questions go to skipped list with reason shown in Jobs page
- Standard inline format (PREP 2012) unchanged
Updated extraction prompts:
- item_number field added to all extractions for cross-referencing
- Image content rule: "Item CXXXB" figure references must NOT be treated as new questions
- Recognises both "Correct Answer: X" and "Preferred Response: X"
- ANSWER_KEY_PROMPT: dedicated prompt for extracting answer key tables
Quiz navigation scroll:
- Clicking Next, Previous, or question number now scrolls the question card
into view (smooth scroll to start of question-card div)
Code: extract_questions_no_answers(), extract_answer_key(), _call_model() added to ai_service.py
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
Quiz layout:
- Desktop: sticky right sidebar (200px) showing all question numbers with
answered/current status — like UWorld. Main content fills the rest.
- Mobile: sidebar hidden; a "N / Total ▲" toggle button between Prev/Next
reveals a collapsible grid of question numbers below the nav buttons
- Question dots: circle buttons colored blue=current, green=answered, gray=unanswered
- Both sidebar and mobile grid close/update on selection
Jobs page (/jobs — moderator):
- List of all extraction jobs (from Redis, same session or different browser)
- Each job shows: status badge, questions extracted, skipped count
- "Details" expands to show:
- Skipped questions warning: names + explanation of why (no correct answer found)
- Chunk breakdown: per-50-page results
- Full extraction log (collapsible <details>)
- Live polling for running jobs
- "Open Quiz" button links directly to the quiz
Navigation:
- Jobs page linked from NavBar jobs badge dropdown
- Route: /jobs (moderator required)
- App.jsx updated with new route
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
- safeNavigate: removed window.confirm() entirely — navigating between
question numbers never loses answers (they're in React state), so the
popup was wrong and annoying
- handleSubmit: replaced window.confirm() with a 3s toast pill at the
bottom of the screen (dark, slides up, fades away automatically)
- ModeSelectScreen: removed skipped-questions warning block — internal
extraction detail, not useful to show users
- Added fadeInUp CSS keyframe for the toast animation
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
Security:
- Nginx: X-Frame-Options, X-Content-Type-Options, X-XSS-Protection, CSP, Referrer-Policy, Permissions-Policy headers
- Redis-backed login rate limiting (survives container restarts)
- Admin litellm/models endpoint: api_key moved from GET query param to POST body
- Nextcloud credentials moved from localStorage to sessionStorage (cleared on tab close)
UX / Layout:
- Login: unverified users see inline "Resend verification email" option
- QuizPage mobile: TTS Listen button on its own row below question text
- QuizPage mobile: Voice selector on its own row in header card (not squashed with timer)
- QuizEditPage: scroll position preserved after saving a question edit
Quiz Categories:
- New QuizCategory model + quiz_categories table
- category_id column added to quizzes table
- GET/POST/DELETE /api/categories endpoints
- Quizzes grouped by category in QuizzesPage; moderators can assign via 🏷 menu
- Uncategorized section shown when categories exist
Question Bank:
- GET /api/questions/bank — search all questions across quizzes
- POST /api/questions/from-bank — create new quiz from selected questions (copies, originals untouched)
- QuestionBankPage: search, checkbox select, study modal, create quiz form
- "Question Bank" link added to Navbar
Search:
- "View all N questions →" button expands to full question list
- Each question has a Study button opening in-place modal with study mode
- Summary view shows 2 questions per quiz with Study button
Extraction prompt:
- Stronger emphasis on correct_answer field with step-by-step letter → full text example
- Explicit instruction never to store just the letter
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
- Add key prop to TTSButton based on question id + answer state
so component remounts (and audio stops) on both question navigation
and answer selection in study mode
- Set AWS Polly Joanna (neural) as default TTS voice
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
- FastAPI backend with JWT auth, roles (admin/moderator/user)
- PDF upload (up to 500MB) with streaming, PyMuPDF text extraction
- ChromaDB vectorization per page with metadata
- LiteLLM AI question extraction from PDF (not generation)
- Image extraction from PDF pages, graceful fallback
- Quiz modes: timed (countdown timer) + learning (answers shown inline)
- Page-by-page question navigation with dot navigator
- TTS endpoint using LiteLLM (Google Vertex / OpenAI voices)
- Admin dashboard: AI model management per task, user role management
- Moderator role: upload PDFs, create sections, generate quizzes
- Spaced repetition reminders via SMTP email (SM-2 intervals)
- APScheduler daily reminder jobs
- Celery + Redis for background PDF processing
- React frontend with all pages
- Docker Compose deployment (nginx + backend + celery + redis)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
