feat: add four new student modules (rotation, skill-video, exam-prep, academic) with backend APIs and frontend pages; add exam-prep question history with DB persistence

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freedakgmail
2026-06-04 11:50:25 +08:00
commit 995f4ecfbd
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{"specId": "43719c76-463f-48fd-8ae8-911390815c6a", "workflowType": "requirements-first", "specType": "feature"}