Refactor Filament resources and models; add attribute casting in Group model, update navigation icons, and remove TeacherSeeder in favor of UserTableSeeder.

.cursor/rules/laravel-boost.mdc

@@ -32,9 +32,6 @@ This application is a Laravel application and its main Laravel ecosystems packag
 - Stick to existing directory structure - don't create new base folders without approval.
 - Do not change the application's dependencies without approval.
 
-## Frontend Bundling
-- If the user doesn't see a frontend change reflected in the UI, it could mean they need to run `npm run build`, `npm run dev`, or `composer run dev`. Ask them.
-
 ## Localization
 - App should be in Turkmen language.
 - All the validation messages should be in Turkmen language.
@@ -115,6 +112,7 @@ protected function isAccessible(User $user, ?string $path = null): bool
 
 ## PHPDoc Blocks
 - Add useful array shape type definitions for arrays when appropriate.
+- Add types and properties for models, controllers, functions, etc.
 
 ## Enums
 - Typically, keys in an Enum should be TitleCase. For example: `FavoritePerson`, `BestLake`, `Monthly`.