fix: enforce unique national ID validation and fix sync updated_at corruption

app/Filament/Resources/PatientResource.php

@@ -195,7 +195,15 @@ public static function form(Schema $schema): Schema
                                 TextInput::make('icno')
                                     ->label(__('patients.fields.icno'))
                                     ->required()
-                                    ->maxLength(11),
+                                    ->maxLength(11)
+                                    ->unique(
+                                        table: Patient::class,
+                                        column: 'icno',
+                                        ignorable: fn ($record) => $record,
+                                    )
+                                    ->validationMessages([
+                                        'unique' => __('patients.validation.icno_unique'),
+                                    ]),
 
                                 TextInput::make('hand_phone')
                                     ->label(__('patients.fields.hand_phone'))
@@ -807,7 +815,7 @@ public static function table(Table $table): Table
                     ->iconColor(fn ($state) => $state ? 'success' : 'gray')
                     ->placeholder('-'),
             ])
-            ->defaultSort('created_at', 'desc')
+            ->defaultSort('updated_at', 'desc')
             ->recordActions([
                 Action::make('surgeryAppointment')
                     ->label(__('patients.actions.surgery_appointment'))