- Introduce `CheerfulNotification` utility class to standardize cheerful and expressive notifications across the application.
- Refactor custom "Cheerful" actions (Create, Edit, Delete, etc.) and `DefaultBulkActions` to utilize the new utility class.
- Update all `ToggleColumn` status updates in Master Data modules to use `CheerfulNotification::statusUpdated()`.
- Replace inline `Notification::make()` calls in custom actions (Reply, Crawl News, Cooperation actions) and Resource Pages with `CheerfulNotification` methods.
- Address various lint errors by standardizing the use of the `Auth` facade and improving type hinting for the authenticated `User` model.
- Introduced a many-to-many relationship in PartnerMedia for announcements.
- Added a has-many relationship in User for news authored by the user.
- Implemented an active scope in User for filtering active users.
