- Implemented a new `site_config` table with migration script.
- Created a model `SiteConfigModel` for CRUD operations on site configurations.
- Added a service layer `SiteConfigService` to interact with the model.
- Developed seed data for initial site configurations.
- Introduced a script to run migrations and optionally seed the database.
- Added a footer component in Pug templates with styling.
- Created an about page and articles listing page with responsive design.
- Implemented a no-auth page for restricted access with user-friendly messaging.
- Added reset CSS and SimpleBar styles for consistent UI.
