## 🎯 Major Features
- Request context management system for complete request visibility
- Structured JSON logging with automatic daily rotation
- Performance monitoring with detailed stage timing breakdowns
- Query analysis result storage and intermediate result tracking
- Error and warning collection with context correlation

## 🔧 Technical Improvements
- **Context Management**: Request-level context with reqid/uid correlation
- **Performance Monitoring**: Automatic timing for all search pipeline stages
- **Structured Logging**: JSON format logs with request context injection
- **Query Enhancement**: Complete query analysis tracking and storage
- **Error Handling**: Enhanced error tracking with context information

## 🐛 Bug Fixes
- Fixed DeepL API endpoint (paid vs free API confusion)
- Fixed vector generation (GPU memory cleanup)
- Fixed logger parameter passing format (reqid/uid handling)
- Fixed translation and embedding functionality

## 🌟 API Improvements
- Simplified API interface (8→5 parameters, 37.5% reduction)
- Made internal functionality transparent to users
- Added performance info to API responses
- Enhanced request correlation and tracking

## 📁 New Infrastructure
- Comprehensive test suite (unit, integration, API tests)
- CI/CD pipeline with automated quality checks
- Performance monitoring and testing tools
- Documentation and example usage guides

## 🔒 Security & Reliability
- Thread-safe context management for concurrent requests
- Automatic log rotation and structured output
- Error isolation with detailed context information
- Complete request lifecycle tracking

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>