v0.1.0

Initial Release - AI-Enhanced MySQL Full-Text Search Engine

This is the first official release of Altus 4, a production-ready AI-enhanced MySQL full-text search engine with zero-migration setup.

Added

Core Search Engine

• Three search modes: Basic keyword, Boolean operators, and Natural language processing
• MySQL FULLTEXT integration with MATCH() AGAINST() optimization
• Query preprocessing with stemming, stop word removal, and term expansion
• Search result ranking with relevance scoring and custom weighting
• Real-time search suggestions and auto-completion support

AI Enhancement Features

• OpenAI GPT integration for intelligent query optimization
• Semantic search capabilities with natural language understanding
• Query categorization and intent recognition
• AI-powered search insights and result enhancement
• Smart query suggestions based on user context

Database Integration

• Zero-migration setup - works with existing MySQL databases
• Dynamic database connections with connection pooling
• FULLTEXT index management and optimization
• Custom table configuration support
• Database health monitoring and automatic reconnection

Performance & Caching

• Redis caching layer with intelligent cache invalidation
• Query result caching with TTL management
• Search analytics caching for performance insights
• Connection pooling for optimal resource utilization
• Rate limiting to prevent abuse and ensure stability

Security & Authentication

• JWT-based authentication with refresh token support
• bcrypt password hashing with configurable salt rounds
• Role-based access control (Admin, User roles)
• AES-256-GCM encryption for sensitive data
• Request validation with Zod schemas
• Security headers and CORS configuration

Analytics & Monitoring

• Real-time search analytics with query performance tracking
• User behavior insights and search pattern analysis
• Performance metrics collection and reporting
• Error tracking and logging with structured logs
• Health check endpoints for system monitoring

Developer Experience

• Comprehensive REST API with OpenAPI documentation
• TypeScript support with strict type checking
• Extensive test suite with 87% coverage (407 tests across 18 suites)
• Integration tests for end-to-end functionality
• Docker support with multi-stage builds
• Development tools including hot reload and debugging

Documentation & Examples

• Complete API documentation with request/response examples
• Architecture guides explaining system design patterns
• Setup and deployment guides for various environments
• Code examples and tutorials for common use cases
• Service documentation with detailed class explanations

Production Features

• Environment-based configuration with validation
• Graceful shutdown handling for clean deployment
• Error handling middleware with standardized error responses
• Request logging with correlation IDs for tracing
• Memory and resource optimization for production workloads

Changed

Architecture Improvements

• Modular service architecture replacing monolithic design patterns
• Dependency injection implementation for better testability
• Centralized configuration management with environment validation
• Standardized error handling across all services and controllers
• Improved logging strategy with structured JSON logs

Performance Optimizations

• Query optimization algorithms for better search performance
• Caching strategy refinement to reduce database load
• Connection pooling improvements for better resource management
• Memory usage optimization in search result processing

Fixed

Test Suite Stabilization

• Jest auto-mocking issues preventing service method execution
• TypeScript compilation errors in test files for bcrypt, OpenAI, and Redis mocking
• Asynchronous constructor handling in UserService tests
• Database connection mocking to properly simulate MySQL operations
• Date formatting inconsistencies in cache key generation tests

Development Environment

• ESLint and Prettier configuration conflicts
• TypeScript strict mode compliance across all modules
• Environment variable validation and type safety
• Import path resolution and module dependency management

Security Enhancements

• JWT token validation edge cases and error handling
• Password hashing consistency and validation
• SQL injection prevention through parameterized queries
• Rate limiting accuracy and redis connection handling

Monitoring & Logging

• Error logging format standardization
• Performance metric collection accuracy
• Health check reliability and timeout handling
• Analytics data consistency and validation