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/Sdk/AeSdk/demo/internalDemo.php

@@ -0,0 +1,15 @@
+<?php
+
+use Sweeper\PlatformMiddleware\Sdk\AeSdk\Iop\Constants;
+use Sweeper\PlatformMiddleware\Sdk\AeSdk\Iop\IopClient;
+use Sweeper\PlatformMiddleware\Sdk\AeSdk\Iop\IopRequest;
+
+$c           = new IopClient('api.taobao.tw/rest', '100240', 'hLeciS15d7UsmXKoND76sBVPpkzepxex');
+$c->logLevel = Constants::$log_level_debug;
+$request     = new IopRequest('/product/item/get', 'GET');
+$request->addApiParam('itemId', '157432005');
+$request->addApiParam('authDO', '{"sellerId":2000000016002}');
+
+var_dump($c->execute($request, null));
+echo PHP_INT_MAX;
+var_dump($c->msectime());