Created table to track user votes on course reviews:
- education.review_helpful_votes
- Constraint: one vote per user per review
- Indexes on user_id and review_id
This table supports the "mark as helpful" feature in course reviews.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
DDL schemas for Trading Platform:
- User management
- Authentication
- Payments
- Education
- ML predictions
- Trading data
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>