fix size data type conversion

src/cli/document/crawl.php

@@ -298,6 +298,10 @@ foreach($index->search('')
         // Update size or skip on empty
         if ($size = curl_getinfo($request, CURLINFO_SIZE_DOWNLOAD))
         {
+            $size = round( // float
+                $size
+            );
+
             $data['size'] = $size;
 
         } else continue;