commit a720487fb563a54fd5e91108596ecec93aa005c5
Author:     Victor Emanouilov <kroky6@gmail.com>
AuthorDate: Tue Aug 19 17:01:31 2025 +0300
Commit:     Victor Emanouilov <kroky6@gmail.com>
CommitDate: Tue Aug 19 17:01:31 2025 +0300

    config file write process fix: add is_readable code and system configuration file code update if needed
