Introduces two-factor authentication (2FA) with TOTP, backup codes, and email codes. Adds controllers, services, views, and migration for 2FA setup, verification, and management. Updates user and settings models, email helper, and relevant controllers to support 2FA policy enforcement, configuration, and user flows. Enhances security by allowing admins to require or disable 2FA, and provides backup code generation and management for account recovery.
Updated the email verification and password reset templates to use more visually appealing and structured HTML layouts. These changes improve readability, branding, and user experience for recipients.
Extracted all email sending logic into a new EmailHelper class for centralized management and improved error handling. Updated AuthController, SettingsController, and EmailChannel to use EmailHelper for sending emails and logging. Added auto-detection of SMTP encryption based on port in both backend (SettingsController) and frontend (settings view), improving user experience and reducing misconfiguration. Enhanced logging for email operations and improved UI feedback for encryption selection.
