fixed validation per dup0licate parts, client inactive, fixed flags scheme, update schema json

public/userarea/validate_export.php

@@ -177,6 +177,8 @@ try {
         SELECT iddatadb, part_number, part_description, idmatrice
         FROM identification_parts
         WHERE iddatadb IN ($placeholders)
+        AND part_description IS NOT NULL
+        AND TRIM(part_description) <> ''
     ");
     $stmt->execute($iddatadbList);
     $partsInfo = [];