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/classes/tables/class.table.php

@@ -0,0 +1,173 @@
+<?php
+if ( ! defined( 'ABSPATH' ) ) { exit; }
+
+// WP_List_Table is not loaded automatically so we need to load it in our application
+if( ! class_exists( 'WP_List_Table' ) ) {
+    require_once( ABSPATH . 'wp-admin/includes/class-wp-list-table.php' );
+}
+
+/**
+ * Create a new table class that will extend the WP_List_Table
+ */
+class MiraviaTable extends WP_List_Table
+{
+    /**
+     * Prepare the items for the table to process
+     *
+     * @return Void
+     */
+    public $data_table = array();
+    public $total_elements = 0;
+
+    public $perPage = 10;
+
+    public $columns = [];
+
+    public $custom_actions = [];
+
+    public $sortable_custom_columns = [];
+
+    public $default_column_name = 'name';
+
+    function extra_tablenav( $which ) {
+        // if ( $which == "top" ){
+        //   echo '<h2>Letter Templates <a href="admin.php?page=letter-template&type=new">Add New</a></h2>';
+        // }
+    }
+
+    public function prepare_items()
+    {
+        $hidden = $this->get_hidden_columns();
+        $sortable = $this->get_sortable_columns();
+
+        $data = $this->table_data();
+        usort( $data, array( &$this, 'sort_data' ) );
+
+        $perPage = $this->perPage;
+        $currentPage = $this->get_pagenum();
+        $totalItems = $this->total_elements;
+
+        $this->set_pagination_args( array(
+            'total_items' => $totalItems,
+            'per_page'    => $perPage
+        ) );
+
+        $data = array_slice($data,(($currentPage-1)*$perPage),$perPage);
+
+        $this->_column_headers = array($this->columns, $hidden, $sortable);
+        $this->items = $data;
+    }
+
+    /**
+     * Override the parent columns method. Defines the columns to use in your listing table
+     *
+     * @return Array
+     */
+    public function get_columns()
+    {
+        return $this->columns;
+    }
+
+    /**
+     * Define which columns are hidden
+     *
+     * @return Array
+     */
+    public function get_hidden_columns()
+    {
+        return array();
+    }
+
+    /**
+     * Define the sortable columns
+     *
+     * @return Array
+     */
+    public function get_sortable_columns()
+    {
+
+        $sortable = array();
+        // if($this->total_elements and count($this->data_table) > 0) {
+
+    
+        //     foreach($this->data_table[0] as $k => $v) {
+        //         $sortable[$k] = array($k, false);
+        //     }
+        // }
+        return $this->sortable_custom_columns;
+    }
+
+    /**
+     * Get the table data
+     *
+     * @return Array
+     */
+    private function table_data()
+    {
+        return $this->data_table;
+    }
+
+    /**
+     * Define what data to show on each column of the table
+     *
+     * @param  Array $item        Data
+     * @param  String $column_name - Current column name
+     *
+     * @return Mixed
+     */
+    public function column_default( $item, $column_name )
+    {
+       
+        return $item[ $column_name ];
+    }
+
+    public function column_name($item){
+        $item_json = json_decode(json_encode($item), true);
+        $copy = $this->custom_actions;
+        foreach($this->custom_actions as $k => $action) {
+            foreach($item_json as $key => $d) {
+                $action = str_replace("[".$key."]", $item_json[$key], $action);
+            }
+            $this->custom_actions[$k] = $action;
+        }
+
+        $result = sprintf('%s %s', $item_json[$this->default_column_name], $this->row_actions($this->custom_actions));
+        $this->custom_actions = $copy;
+        return $result;
+    }
+
+    /**
+     * Allows you to sort the data by the variables set in the $_GET
+     *
+     * @return Mixed
+     */
+    private function sort_data( $a, $b )
+    {
+        // Set defaults
+        $orderby = 'title';
+        $order = 'asc';
+
+        // If orderby is set, use this as the sort column
+        if(!empty($_GET['orderby']))
+        {
+            $orderby = sanitize_text_field($_GET['orderby']);
+        }
+
+        // If order is set use this as the order
+        if(!empty($_GET['order']))
+        {
+            $order = sanitize_text_field($_GET['order']);
+        }
+        $result = '';
+        if(isset($a[$orderby])) {
+            $result = strcmp( $a[$orderby], $b[$orderby] );
+        }
+
+        if($order === 'asc')
+        {
+            return $result;
+        }
+
+        return -$result;
+    }
+}