Return priceMap from platform_images mode

order.online embeds displayPrice alongside images — now extracted and
returned so items missing prices from image-based menus get filled in.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

api/setup/analyzeMenuUrl.php

@@ -195,14 +195,14 @@ JSEOF;
 
         $result = json_decode(trim($output ?? ''), true);
         if (!is_array($result)) {
-            $result = ['imageMap' => [], 'totalFound' => 0];
+            $result = ['imageMap' => [], 'priceMap' => []];
         }
 
         jsonResponse([
             'OK' => true,
             'mode' => 'platform_images',
             'imageMap' => $result['imageMap'] ?? [],
-            'totalFound' => $result['totalFound'] ?? 0,
+            'priceMap' => $result['priceMap'] ?? [],
         ]);
     }