- Introduced captcha generation and validation in the registration and login processes.
- Created new database table `captcha_codes` to store captcha tokens and codes.
- Implemented functions to generate captcha codes and SVG images.
- Updated user registration and login logic to include captcha verification.
- Added new API endpoints for captcha generation and user authentication.
- Refactored authentication service to handle captcha-related operations.
- Updated package dependencies to include jsonwebtoken and its types.