Fix image upload structure for Miravia API compliance

🔧 Bug Fixes:
- Fixed product image structure to match Miravia API requirements
- Updated MiraviaProduct.php getData() method to wrap images in {"Image": [...]} format
- Updated MiraviaCombination.php getData() method to wrap SKU images properly
- Resolved error "[4224] The Main image of the product is required"

📋 Changes:
- Modified getData() methods to transform flat image arrays to nested structure
- Product images: images[] → Images: {"Image": [...]}
- SKU images: images[] → Images: {"Image": [...]}
- Maintains backward compatibility for empty image arrays

🎯 Impact:
- Product uploads will now pass Miravia's image validation
- Both product-level and SKU-level images properly formatted
- Complies with official Miravia API documentation structure

🤖 Generated with Claude Code (https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

connector-miravia/views/pages/attributes.php

@@ -0,0 +1,65 @@
+<?php
+if ( ! defined( 'ABSPATH' ) ) { exit; }
+
+$category = get_term(sanitize_text_field($_GET['cat_id']));
+if(isset($_POST['action']) and sanitize_text_field($_POST['action']) == 'save_miravia_attr_default') {
+    update_term_meta($category->term_id, "_miravia_attr", sanitize_text_field($_POST['attr']));
+}
+
+$miravia_category = get_term_meta($category->term_id, '_miravia_category', true);
+$token = MiraviaCore::get_miravia_account_default();
+if($token) {
+    $token = $token['token'];
+}else{
+    die('Error: Account is not ready');
+}
+$link = new MiraviaCategory($token);
+$attributes = $link->getAttributes($miravia_category);
+$default_attributes = get_term_meta($category->term_id, "_miravia_attr", true);
+$attributes_woocommerce = wp_list_pluck( wc_get_attribute_taxonomies(), 'attribute_label', 'attribute_name' );
+?>
+<h1>MIRAVIA - Attributes <?php echo  $category->name ?> Configuration</h1>
+<form method="post">
+    <table width="100%">
+        <?php
+        if($attributes_woocommerce) {
+            foreach($attributes_woocommerce as $slug => $attr) {
+                
+                    // if(isset($default_attributes[$attr['name']])) {
+                    //     $value = $default_attributes[$attr['name']];
+                    // }else{
+                    //     $value = '';
+                    // }
+                    // $obligatorio = '';
+                    // if($attr['is_mandatory'] == '1') {
+                    //     $obligatorio = '*';
+                    // }
+                    
+                    $options = '';
+                    if (!empty ($attributes ) ) {
+                        foreach ( $attributes as $key => $v ) {
+                            if($v['is_sale_prop'] == 0) {
+                                continue;
+                            }
+                            $selected = '';
+                            if($default_attributes != '' and $v['name'] == $default_attributes[$slug]) {
+                                $selected = 'selected="selected"';
+                            }
+                            $options .= "<option value='{$v['name']}' {$selected}>{$v['label']}</option>";
+                        }
+                    }
+                    echo wp_kses("<tr>
+                        <td style='text-transform: capitalize;'>{$attr}</td>
+                        <td><select class='attribute' name='attr[{$slug}]'>
+                        <option disabled value='0'> - Select - </option>{$options}</select></td>
+                    </tr>", wp_kses_allowed_html());
+            }
+            echo wp_kses("<button type='submit' name='action' value='save_miravia_attr_default'>Guardar Atributos</button>",wp_kses_allowed_html());
+        }else{
+            echo esc_html('No hay atributos en el id ' . $category->term_id);
+        }
+        ?>
+
+        
+    </table>
+</form>