feature/quiz-ui

Features:

• Interactive quiz UI with topic selection
• Immediate feedback after answering

Question Format

Questions are stored in data/questions.json as an array of objects. Each question uses:

• id (string)
• topic (string)
• question (string)
• options (array of strings)
• answerIndex (number, 0-based)
• explanation (string)

Example: { "id": "Q1", "topic": "Continuous Integration", "question": "What is the primary goal of CI?", "options": ["A", "B", "C", "D"], "answerIndex": 1, "explanation": "CI integrates changes frequently to detect issues early." } main