- Updated all references from `enviroment` to `environment` across the codebase.
- Removed the old `enviroment` module and replaced it with a new `environment` module that includes centralized configuration management.
- Enhanced OTP generation to include secure hashing and expiration handling.
- Improved CSRF token generation and validation with better error handling.
- Cleaned up logging statements in various modules for clarity and consistency.
- Updated response formatting to include versioning from Cargo.toml.
- Removed unused mock test module from utils.
- Implemented tests for creating, retrieving, updating, and deleting mentors in `mentor_repository_test.rs`.
- Added tests for user authentication, including successful login, invalid email formats, and inactive users in `auth_login_tests.rs`.
- Created a mock test environment setup in `mock_test.rs` to facilitate database operations during tests.
- Updated module structure to include new test files for mentors and authentication.
- Ensured cleanup of the database after tests to maintain isolation and prevent side effects.