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/brands.php

@@ -0,0 +1,10 @@
+<?php
+if ( ! defined( 'ABSPATH' ) ) { exit; }
+global $MIRAVIAWOO;
+// $brands = $MIRAVIAWOO->client->get_brands(1);
+// die('<pre>'.print_r($brands, true).'</pre>');
+?>
+<div class="wrap">    
+    <h2>Brands</h2>
+        
+</div>