- Add complete authentication handlers for registration, login, profile retrieval, and update
- Implement UserService with robust validation and error handling
- Create new user_service.go with core authentication logic
- Add support for JWT token generation and user management
- Implement input validation, password hashing, and error responses
- Enhance security with email normalization and input sanitization
- Prepare groundwork for secure user authentication flow
- Add initial project scaffolding with Go module and project structure
- Create server and CLI entry points for application
- Implement Makefile with development and build commands
- Add `.env.example` with comprehensive configuration template
- Set up README.md with project documentation and setup instructions
- Configure basic dependencies for server, database, and CLI tools
- Establish internal package structure for models, services, and handlers
- Add initial configuration and environment management
- Prepare for HTTP server, CLI, and database integration
