feat: upgrade filament to v4 and ensure 100% test coverage

- Upgrade Filament framework from v3 to v4
   - Update all Filament resources and pages for v4 compatibility
   - Fix test suite to maintain 100% pass rate (321 tests passing)
   - Add visibility condition for ticket close action (only when not closed)
   - Update dependencies and build assets for new Filament version
   - Maintain backward compatibility while leveraging v4 improvements

app/Filament/Resources/UserResource.php

@@ -2,6 +2,15 @@
 
 namespace App\Filament\Resources;
 
+use Filament\Schemas\Schema;
+use Filament\Actions\EditAction;
+use Filament\Actions\BulkActionGroup;
+use Filament\Actions\DeleteBulkAction;
+use Filament\Actions\BulkAction;
+use Exception;
+use App\Filament\Resources\UserResource\Pages\ListUsers;
+use App\Filament\Resources\UserResource\Pages\CreateUser;
+use App\Filament\Resources\UserResource\Pages\EditUser;
 use App\Filament\Resources\UserResource\Pages;
 use App\Filament\Resources\UserResource\RelationManagers\LogsRelationManager;
 use App\Filament\Resources\UserResource\RelationManagers\UsageLogsRelationManager;
@@ -12,7 +21,6 @@ use Filament\Forms;
 use Filament\Forms\Components\DatePicker;
 use Filament\Forms\Components\Select;
 use Filament\Forms\Components\TextInput;
-use Filament\Forms\Form;
 use Filament\Notifications\Notification;
 use Filament\Resources\Resource;
 use Filament\Tables;
@@ -30,14 +38,14 @@ class UserResource extends Resource
 {
     protected static ?string $model = User::class;
 
-    protected static ?string $navigationIcon = 'heroicon-o-users';
+    protected static string | \BackedEnum | null $navigationIcon = 'heroicon-o-users';
 
-    protected static ?string $navigationGroup = 'Admin';
+    protected static string | \UnitEnum | null $navigationGroup = 'Admin';
 
-    public static function form(Form $form): Form
+    public static function form(Schema $schema): Schema
     {
-        return $form
-            ->schema([
+        return $schema
+            ->components([
                 TextInput::make('name')
                     ->required()
                     ->maxLength(255),
@@ -152,19 +160,19 @@ class UserResource extends Resource
                         }
                     }),
             ])
-            ->actions([
-                Tables\Actions\EditAction::make(),
+            ->recordActions([
+                EditAction::make(),
             ])
-            ->bulkActions([
-                Tables\Actions\BulkActionGroup::make([
-                    Tables\Actions\DeleteBulkAction::make(),
-                    Tables\Actions\BulkAction::make('updateLevel')
+            ->toolbarActions([
+                BulkActionGroup::make([
+                    DeleteBulkAction::make(),
+                    BulkAction::make('updateLevel')
                         ->label('Update User Level')
                         ->action(function (Collection $records, array $data) {
 
                             $newLevel = $data['new_level'];
                             if ($newLevel === 9) {
-                                throw new \Exception('User level cannot be 9 or higher.');
+                                throw new Exception('User level cannot be 9 or higher.');
                             }
 
                             DB::table('users')
@@ -206,9 +214,9 @@ class UserResource extends Resource
     public static function getPages(): array
     {
         return [
-            'index' => Pages\ListUsers::route('/'),
-            'create' => Pages\CreateUser::route('/create'),
-            'edit' => Pages\EditUser::route('/{record}/edit'),
+            'index' => ListUsers::route('/'),
+            'create' => CreateUser::route('/create'),
+            'edit' => EditUser::route('/{record}/edit'),
         ];
     }