- Added configuration options for Two-Factor Authentication, including TOTP encryption key.
- Updated user profile components to manage 2FA status and backup codes.
- Implemented encryption and decryption of TOTP secrets using AES-256-GCM.
- Enhanced backup code generation and validation processes, storing hashed codes securely.
- Introduced new routes and handlers for managing backup codes and 2FA setup.
- Updated README with detailed instructions and security considerations for 2FA implementation.
