- Replace custom migration system with modern Drizzle ORM implementation
- Add drizzle-orm and drizzle-kit dependencies for type-safe database operations
- Refactor BaseService to use Drizzle client with full type safety
- Create schema definitions in /database/schema/ using Drizzle patterns
- Remove legacy migration files, queries, and migrator classes
- Add comprehensive documentation for new Drizzle-based architecture
- Maintain backward compatibility in service layer APIs
- Simplify database operations with modern ORM patterns
This migration eliminates custom SQL generation in favor of a proven,
type-safe ORM solution that provides better developer experience and
maintainability.
- **BaseService**: Shared database connection and JSON serialization utilities
- **AgentService**: Agent management operations (CRUD for agents)
- **SessionService**: Session management operations (CRUD for sessions)
- **SessionLogService**: Session log management operations (CRUD for session logs)
Updated API routes to use appropriate services:
- sessions.ts now uses SessionService for session operations
- session-logs.ts now uses SessionLogService and SessionService as needed
- Maintains backward compatibility with existing API endpoints
Benefits:
- Single Responsibility Principle - each service has a clear focus
- Better code organization and maintainability
- Easier testing and debugging
- Improved separation of concerns
- Shared database infrastructure via BaseService
All TypeScript compilation and build checks pass.
Add comprehensive agent service with full CRUD operations, session management,
and structured logging capabilities. Includes database operations for agents,
sessions, and hierarchical log entries with proper type definitions.
- Add complete SQL schema for agents, sessions, and session_logs tables
- Implement CRUD operations for all agent-related entities
- Add SessionLogEntity type with hierarchical logging support
- Include proper indexes and foreign key constraints for performance
- Support agent configuration inheritance in sessions via COALESCE
- Add metadata field for extensible session log tracking
