Enhance TagsInput validation: ensure at least one item is required for non-empty arrays; improve setting value handling in Retrieved event

app/Classes/FilamentInput.php

@@ -98,11 +98,17 @@ class FilamentInput
                     ->hintColor('primary')
                     ->helperText($setting->description ?? '');
                 
-                // For required TagsInput, we need to validate the array has at least one item
-                // Filament's required() alone considers empty arrays as "filled"
+                // For required TagsInput, validate that array has at least one item
+                // Standard 'required' rule considers empty arrays as valid
                 if ($setting->required ?? false) {
                     $input->required()
-                        ->rules(['array', 'min:1']);
+                        ->rule(function () {
+                            return function (string $attribute, $value, \Closure $fail) {
+                                if (!is_array($value) || empty($value)) {
+                                    $fail('The :attribute field must have at least 1 items.');
+                                }
+                            };
+                        });
                 }
                 
                 return $input;