Backend Implementation Phase 4 (Task-25, 26, 27)

[Rakshit-maheshwari-rm]

Hi,

I would like to contribute to this project by working on Backend Phase 4 — Mock Test Engine (Part 2). I will be handling the following tasks:

• Design test_attempts table: id, user_id, test_id, started_at, submitted_at, status (in-progress/completed/abandoned), total_score, score_breakdown (JSONB)
• Design user_answers table: id, attempt_id, question_id, answer (JSONB), score, feedback, time_taken_seconds
• Implement GET /api/tests — list all available mock tests with filters (type, difficulty, duration); GET /api/tests/:id — get test with questions

Please assign this issue to me. I will submit a Pull Request once completed.

Thanks!
SSoC26