🔧 Refactor: Database Connection Refactoring

[Ayobamiu]

This PR addresses database connection duplication identified by our automated analysis tool.

📊 Summary

• Total duplicates found: 2
• Estimated effort: 8.5 hours
• Files affected: 3
• Groups included: 1

🎯 What This PR Does

This PR consolidates duplicate database connection patterns into a centralized connection pooling system.

📋 Included Changes

• Database Connection Refactoring (2 duplicates)
  • Pattern: database connection
  • Effort: 8.5 hours
  • Impact: High: Security, performance, or major maintenance improvements
  • Files: iterate/core/advanced_metrics.py, iterate/core/test_generator.py, iterate/core/documentation_generator.py

🔍 How to Review

1. Check each duplicate pattern is properly extracted
2. Verify new utility modules are well-tested
3. Ensure no functionality is broken
4. Validate import statements are updated

🧪 Testing

• All existing tests pass
• New utility functions have tests
• No regressions introduced

📝 Notes

• This PR was automatically generated by the Iterate tool
• Each duplicate group can be reviewed independently