**Faster human evaluation workflow**

We have updated the human evaluation table view to add annotation and correct answer columns.

**Improvements**:

- Simplified the database migration process
- Fixed environment variable injection to enable cloud users to use their own keys
- Disabled import from endpoint in cloud due to security reasons
- Improved query lookup speed for evaluation scenarios
- Improved error handling in playground

**Bug fixes**:

- Resolved failing Backend tests
- Fixed a bug in rate limit configuration validation
- Fixed issue with all aggregated results
- Resolved issue with live results in A/B testing evaluation not updating

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