feat(auth): implement JWT authentication and user registration

- Added JWT authentication with token generation and validation.
- Introduced user registration functionality with email and password.
- Integrated Argon2 for password hashing.
- Created SQLite user repository for user data persistence.
- Updated application context to include user repository and configuration settings.
- Added environment variable support for JWT secret and registration allowance.
- Enhanced error handling for unauthorized access and validation errors.
- Updated presentation layer to handle login and registration requests.

crates/presentation/src/errors.rs

@@ -18,6 +18,7 @@ impl IntoResponse for ApiError {
             DomainError::InvalidRating { .. } => (StatusCode::BAD_REQUEST, self.0.to_string()),
             DomainError::ValidationError(msg) => (StatusCode::BAD_REQUEST, msg),
             DomainError::NotFound(msg) => (StatusCode::NOT_FOUND, msg),
+            DomainError::Unauthorized(msg) => (StatusCode::UNAUTHORIZED, msg),
             DomainError::InfrastructureError(_) => {
                 tracing::error!("Internal Infrastructure Error: {:?}", self.0);
                 (